app/test-crypto-perf/cperf_test_latency.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2016-2017 Intel Corporation. All rights reserved.
   5  *
   6  *   Redistribution and use in source and binary forms, with or without
   7  *   modification, are permitted provided that the following conditions
   8  *   are met:
   9  *
  10  *     * Redistributions of source code must retain the above copyright
  11  *       notice, this list of conditions and the following disclaimer.
  12  *     * Redistributions in binary form must reproduce the above copyright
  13  *       notice, this list of conditions and the following disclaimer in
  14  *       the documentation and/or other materials provided with the
  15  *       distribution.
  16  *     * Neither the name of Intel Corporation nor the names of its
  17  *       contributors may be used to endorse or promote products derived
  18  *       from this software without specific prior written permission.
  19  *
  20  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  23  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  24  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  30  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include <rte_malloc.h>
  34 #include <rte_cycles.h>
  35 #include <rte_crypto.h>
  36 #include <rte_cryptodev.h>
  37
  38 #include "cperf_test_latency.h"
  39 #include "cperf_ops.h"
  40
  41
  42 struct cperf_op_result {
  43         uint64_t tsc_start;
  44         uint64_t tsc_end;
  45         enum rte_crypto_op_status status;
  46 };
  47
  48 struct cperf_latency_ctx {
  49         uint8_t dev_id;
  50         uint16_t qp_id;
  51         uint8_t lcore_id;
  52
  53         struct rte_mempool *pkt_mbuf_pool_in;
  54         struct rte_mempool *pkt_mbuf_pool_out;
  55         struct rte_mbuf **mbufs_in;
  56         struct rte_mbuf **mbufs_out;
  57
  58         struct rte_mempool *crypto_op_pool;
  59
  60         struct rte_cryptodev_sym_session *sess;
  61
  62         cperf_populate_ops_t populate_ops;
  63
  64         const struct cperf_options *options;
  65         const struct cperf_test_vector *test_vector;
  66         struct cperf_op_result *res;
  67 };
  68
  69 struct priv_op_data {
  70         struct cperf_op_result *result;
  71 };
  72
  73 #define max(a, b) (a > b ? (uint64_t)a : (uint64_t)b)
  74 #define min(a, b) (a < b ? (uint64_t)a : (uint64_t)b)
  75
  76 static void
  77 cperf_latency_test_free(struct cperf_latency_ctx *ctx, uint32_t mbuf_nb)
  78 {
  79         uint32_t i;
  80
  81         if (ctx) {
  82                 if (ctx->sess) {
  83                         rte_cryptodev_sym_session_clear(ctx->dev_id, ctx->sess);
  84                         rte_cryptodev_sym_session_free(ctx->sess);
  85                 }
  86
  87                 if (ctx->mbufs_in) {
  88                         for (i = 0; i < mbuf_nb; i++)
  89                                 rte_pktmbuf_free(ctx->mbufs_in[i]);
  90
  91                         rte_free(ctx->mbufs_in);
  92                 }
  93
  94                 if (ctx->mbufs_out) {
  95                         for (i = 0; i < mbuf_nb; i++) {
  96                                 if (ctx->mbufs_out[i] != NULL)
  97                                         rte_pktmbuf_free(ctx->mbufs_out[i]);
  98                         }
  99
 100                         rte_free(ctx->mbufs_out);
 101                 }
 102
 103                 if (ctx->pkt_mbuf_pool_in)
 104                         rte_mempool_free(ctx->pkt_mbuf_pool_in);
 105
 106                 if (ctx->pkt_mbuf_pool_out)
 107                         rte_mempool_free(ctx->pkt_mbuf_pool_out);
 108
 109                 if (ctx->crypto_op_pool)
 110                         rte_mempool_free(ctx->crypto_op_pool);
 111
 112                 rte_free(ctx->res);
 113                 rte_free(ctx);
 114         }
 115 }
 116
 117 static struct rte_mbuf *
 118 cperf_mbuf_create(struct rte_mempool *mempool,
 119                 uint32_t segments_nb,
 120                 const struct cperf_options *options,
 121                 const struct cperf_test_vector *test_vector)
 122 {
 123         struct rte_mbuf *mbuf;
 124         uint32_t segment_sz = options->max_buffer_size / segments_nb;
 125         uint32_t last_sz = options->max_buffer_size % segments_nb;
 126         uint8_t *mbuf_data;
 127         uint8_t *test_data =
 128                         (options->cipher_op == RTE_CRYPTO_CIPHER_OP_ENCRYPT) ?
 129                                         test_vector->plaintext.data :
 130                                         test_vector->ciphertext.data;
 131
 132         mbuf = rte_pktmbuf_alloc(mempool);
 133         if (mbuf == NULL)
 134                 goto error;
 135
 136         mbuf_data = (uint8_t *)rte_pktmbuf_append(mbuf, segment_sz);
 137         if (mbuf_data == NULL)
 138                 goto error;
 139
 140         memcpy(mbuf_data, test_data, segment_sz);
 141         test_data += segment_sz;
 142         segments_nb--;
 143
 144         while (segments_nb) {
 145                 struct rte_mbuf *m;
 146
 147                 m = rte_pktmbuf_alloc(mempool);
 148                 if (m == NULL)
 149                         goto error;
 150
 151                 rte_pktmbuf_chain(mbuf, m);
 152
 153                 mbuf_data = (uint8_t *)rte_pktmbuf_append(mbuf, segment_sz);
 154                 if (mbuf_data == NULL)
 155                         goto error;
 156
 157                 memcpy(mbuf_data, test_data, segment_sz);
 158                 test_data += segment_sz;
 159                 segments_nb--;
 160         }
 161
 162         if (last_sz) {
 163                 mbuf_data = (uint8_t *)rte_pktmbuf_append(mbuf, last_sz);
 164                 if (mbuf_data == NULL)
 165                         goto error;
 166
 167                 memcpy(mbuf_data, test_data, last_sz);
 168         }
 169
 170         if (options->op_type != CPERF_CIPHER_ONLY) {
 171                 mbuf_data = (uint8_t *)rte_pktmbuf_append(mbuf,
 172                         options->digest_sz);
 173                 if (mbuf_data == NULL)
 174                         goto error;
 175         }
 176
 177         if (options->op_type == CPERF_AEAD) {
 178                 uint8_t *aead = (uint8_t *)rte_pktmbuf_prepend(mbuf,
 179                         RTE_ALIGN_CEIL(options->aead_aad_sz, 16));
 180
 181                 if (aead == NULL)
 182                         goto error;
 183
 184                 memcpy(aead, test_vector->aad.data, test_vector->aad.length);
 185         }
 186
 187         return mbuf;
 188 error:
 189         if (mbuf != NULL)
 190                 rte_pktmbuf_free(mbuf);
 191
 192         return NULL;
 193 }
 194
 195 void *
 196 cperf_latency_test_constructor(struct rte_mempool *sess_mp,
 197                 uint8_t dev_id, uint16_t qp_id,
 198                 const struct cperf_options *options,
 199                 const struct cperf_test_vector *test_vector,
 200                 const struct cperf_op_fns *op_fns)
 201 {
 202         struct cperf_latency_ctx *ctx = NULL;
 203         unsigned int mbuf_idx = 0;
 204         char pool_name[32] = "";
 205
 206         ctx = rte_malloc(NULL, sizeof(struct cperf_latency_ctx), 0);
 207         if (ctx == NULL)
 208                 goto err;
 209
 210         ctx->dev_id = dev_id;
 211         ctx->qp_id = qp_id;
 212
 213         ctx->populate_ops = op_fns->populate_ops;
 214         ctx->options = options;
 215         ctx->test_vector = test_vector;
 216
 217         /* IV goes at the end of the crypto operation */
 218         uint16_t iv_offset = sizeof(struct rte_crypto_op) +
 219                 sizeof(struct rte_crypto_sym_op) +
 220                 sizeof(struct cperf_op_result *);
 221
 222         ctx->sess = op_fns->sess_create(sess_mp, dev_id, options, test_vector,
 223                         iv_offset);
 224         if (ctx->sess == NULL)
 225                 goto err;
 226
 227         snprintf(pool_name, sizeof(pool_name), "cperf_pool_in_cdev_%d",
 228                                 dev_id);
 229
 230         ctx->pkt_mbuf_pool_in = rte_pktmbuf_pool_create(pool_name,
 231                         options->pool_sz * options->segments_nb, 0, 0,
 232                         RTE_PKTMBUF_HEADROOM +
 233                         RTE_CACHE_LINE_ROUNDUP(
 234                                 (options->max_buffer_size / options->segments_nb) +
 235                                 (options->max_buffer_size % options->segments_nb) +
 236                                         options->digest_sz),
 237                         rte_socket_id());
 238
 239         if (ctx->pkt_mbuf_pool_in == NULL)
 240                 goto err;
 241
 242         /* Generate mbufs_in with plaintext populated for test */
 243         ctx->mbufs_in = rte_malloc(NULL,
 244                         (sizeof(struct rte_mbuf *) *
 245                         ctx->options->pool_sz), 0);
 246
 247         for (mbuf_idx = 0; mbuf_idx < options->pool_sz; mbuf_idx++) {
 248                 ctx->mbufs_in[mbuf_idx] = cperf_mbuf_create(
 249                                 ctx->pkt_mbuf_pool_in, options->segments_nb,
 250                                 options, test_vector);
 251                 if (ctx->mbufs_in[mbuf_idx] == NULL)
 252                         goto err;
 253         }
 254
 255         if (options->out_of_place == 1) {
 256
 257                 snprintf(pool_name, sizeof(pool_name),
 258                                 "cperf_pool_out_cdev_%d",
 259                                 dev_id);
 260
 261                 ctx->pkt_mbuf_pool_out = rte_pktmbuf_pool_create(
 262                                 pool_name, options->pool_sz, 0, 0,
 263                                 RTE_PKTMBUF_HEADROOM +
 264                                 RTE_CACHE_LINE_ROUNDUP(
 265                                         options->max_buffer_size +
 266                                         options->digest_sz),
 267                                 rte_socket_id());
 268
 269                 if (ctx->pkt_mbuf_pool_out == NULL)
 270                         goto err;
 271         }
 272
 273         ctx->mbufs_out = rte_malloc(NULL,
 274                         (sizeof(struct rte_mbuf *) *
 275                         ctx->options->pool_sz), 0);
 276
 277         for (mbuf_idx = 0; mbuf_idx < options->pool_sz; mbuf_idx++) {
 278                 if (options->out_of_place == 1) {
 279                         ctx->mbufs_out[mbuf_idx] = cperf_mbuf_create(
 280                                         ctx->pkt_mbuf_pool_out, 1,
 281                                         options, test_vector);
 282                         if (ctx->mbufs_out[mbuf_idx] == NULL)
 283                                 goto err;
 284                 } else {
 285                         ctx->mbufs_out[mbuf_idx] = NULL;
 286                 }
 287         }
 288
 289         snprintf(pool_name, sizeof(pool_name), "cperf_op_pool_cdev_%d",
 290                         dev_id);
 291
 292         uint16_t priv_size = sizeof(struct priv_op_data) +
 293                         test_vector->cipher_iv.length +
 294                         test_vector->auth_iv.length +
 295                         test_vector->aead_iv.length;
 296         ctx->crypto_op_pool = rte_crypto_op_pool_create(pool_name,
 297                         RTE_CRYPTO_OP_TYPE_SYMMETRIC, options->pool_sz,
 298                         512, priv_size, rte_socket_id());
 299
 300         if (ctx->crypto_op_pool == NULL)
 301                 goto err;
 302
 303         ctx->res = rte_malloc(NULL, sizeof(struct cperf_op_result) *
 304                         ctx->options->total_ops, 0);
 305
 306         if (ctx->res == NULL)
 307                 goto err;
 308
 309         return ctx;
 310 err:
 311         cperf_latency_test_free(ctx, mbuf_idx);
 312
 313         return NULL;
 314 }
 315
 316 static inline void
 317 store_timestamp(struct rte_crypto_op *op, uint64_t timestamp)
 318 {
 319         struct priv_op_data *priv_data;
 320
 321         priv_data = (struct priv_op_data *) (op->sym + 1);
 322         priv_data->result->status = op->status;
 323         priv_data->result->tsc_end = timestamp;
 324 }
 325
 326 int
 327 cperf_latency_test_runner(void *arg)
 328 {
 329         struct cperf_latency_ctx *ctx = arg;
 330         uint16_t test_burst_size;
 331         uint8_t burst_size_idx = 0;
 332
 333         static int only_once;
 334
 335         if (ctx == NULL)
 336                 return 0;
 337
 338         struct rte_crypto_op *ops[ctx->options->max_burst_size];
 339         struct rte_crypto_op *ops_processed[ctx->options->max_burst_size];
 340         uint64_t i;
 341         struct priv_op_data *priv_data;
 342
 343         uint32_t lcore = rte_lcore_id();
 344
 345 #ifdef CPERF_LINEARIZATION_ENABLE
 346         struct rte_cryptodev_info dev_info;
 347         int linearize = 0;
 348
 349         /* Check if source mbufs require coalescing */
 350         if (ctx->options->segments_nb > 1) {
 351                 rte_cryptodev_info_get(ctx->dev_id, &dev_info);
 352                 if ((dev_info.feature_flags &
 353                                 RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER) == 0)
 354                         linearize = 1;
 355         }
 356 #endif /* CPERF_LINEARIZATION_ENABLE */
 357
 358         ctx->lcore_id = lcore;
 359
 360         /* Warm up the host CPU before starting the test */
 361         for (i = 0; i < ctx->options->total_ops; i++)
 362                 rte_cryptodev_enqueue_burst(ctx->dev_id, ctx->qp_id, NULL, 0);
 363
 364         /* Get first size from range or list */
 365         if (ctx->options->inc_burst_size != 0)
 366                 test_burst_size = ctx->options->min_burst_size;
 367         else
 368                 test_burst_size = ctx->options->burst_size_list[0];
 369
 370         uint16_t iv_offset = sizeof(struct rte_crypto_op) +
 371                 sizeof(struct rte_crypto_sym_op) +
 372                 sizeof(struct cperf_op_result *);
 373
 374         while (test_burst_size <= ctx->options->max_burst_size) {
 375                 uint64_t ops_enqd = 0, ops_deqd = 0;
 376                 uint64_t m_idx = 0, b_idx = 0;
 377
 378                 uint64_t tsc_val, tsc_end, tsc_start;
 379                 uint64_t tsc_max = 0, tsc_min = ~0UL, tsc_tot = 0, tsc_idx = 0;
 380                 uint64_t enqd_max = 0, enqd_min = ~0UL, enqd_tot = 0;
 381                 uint64_t deqd_max = 0, deqd_min = ~0UL, deqd_tot = 0;
 382
 383                 while (enqd_tot < ctx->options->total_ops) {
 384
 385                         uint16_t burst_size = ((enqd_tot + test_burst_size)
 386                                         <= ctx->options->total_ops) ?
 387                                                         test_burst_size :
 388                                                         ctx->options->total_ops -
 389                                                         enqd_tot;
 390
 391                         /* Allocate crypto ops from pool */
 392                         if (burst_size != rte_crypto_op_bulk_alloc(
 393                                         ctx->crypto_op_pool,
 394                                         RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 395                                         ops, burst_size)) {
 396                                 RTE_LOG(ERR, USER1,
 397                                         "Failed to allocate more crypto operations "
 398                                         "from the the crypto operation pool.\n"
 399                                         "Consider increasing the pool size "
 400                                         "with --pool-sz\n");
 401                                 return -1;
 402                         }
 403
 404                         /* Setup crypto op, attach mbuf etc */
 405                         (ctx->populate_ops)(ops, &ctx->mbufs_in[m_idx],
 406                                         &ctx->mbufs_out[m_idx],
 407                                         burst_size, ctx->sess, ctx->options,
 408                                         ctx->test_vector, iv_offset);
 409
 410                         tsc_start = rte_rdtsc_precise();
 411
 412 #ifdef CPERF_LINEARIZATION_ENABLE
 413                         if (linearize) {
 414                                 /* PMD doesn't support scatter-gather and source buffer
 415                                  * is segmented.
 416                                  * We need to linearize it before enqueuing.
 417                                  */
 418                                 for (i = 0; i < burst_size; i++)
 419                                         rte_pktmbuf_linearize(ops[i]->sym->m_src);
 420                         }
 421 #endif /* CPERF_LINEARIZATION_ENABLE */
 422
 423                         /* Enqueue burst of ops on crypto device */
 424                         ops_enqd = rte_cryptodev_enqueue_burst(ctx->dev_id, ctx->qp_id,
 425                                         ops, burst_size);
 426
 427                         /* Dequeue processed burst of ops from crypto device */
 428                         ops_deqd = rte_cryptodev_dequeue_burst(ctx->dev_id, ctx->qp_id,
 429                                         ops_processed, test_burst_size);
 430
 431                         tsc_end = rte_rdtsc_precise();
 432
 433                         /* Free memory for not enqueued operations */
 434                         if (ops_enqd != burst_size)
 435                                 rte_mempool_put_bulk(ctx->crypto_op_pool,
 436                                                 (void **)&ops[ops_enqd],
 437                                                 burst_size - ops_enqd);
 438
 439                         for (i = 0; i < ops_enqd; i++) {
 440                                 ctx->res[tsc_idx].tsc_start = tsc_start;
 441                                 /*
 442                                  * Private data structure starts after the end of the
 443                                  * rte_crypto_sym_op structure.
 444                                  */
 445                                 priv_data = (struct priv_op_data *) (ops[i]->sym + 1);
 446                                 priv_data->result = (void *)&ctx->res[tsc_idx];
 447                                 tsc_idx++;
 448                         }
 449
 450                         if (likely(ops_deqd))  {
 451                                 /*
 452                                  * free crypto ops so they can be reused. We don't free
 453                                  * the mbufs here as we don't want to reuse them as
 454                                  * the crypto operation will change the data and cause
 455                                  * failures.
 456                                  */
 457                                 for (i = 0; i < ops_deqd; i++)
 458                                         store_timestamp(ops_processed[i], tsc_end);
 459
 460                                 rte_mempool_put_bulk(ctx->crypto_op_pool,
 461                                                 (void **)ops_processed, ops_deqd);
 462
 463                                 deqd_tot += ops_deqd;
 464                                 deqd_max = max(ops_deqd, deqd_max);
 465                                 deqd_min = min(ops_deqd, deqd_min);
 466                         }
 467
 468                         enqd_tot += ops_enqd;
 469                         enqd_max = max(ops_enqd, enqd_max);
 470                         enqd_min = min(ops_enqd, enqd_min);
 471
 472                         m_idx += ops_enqd;
 473                         m_idx = m_idx + test_burst_size > ctx->options->pool_sz ?
 474                                         0 : m_idx;
 475                         b_idx++;
 476                 }
 477
 478                 /* Dequeue any operations still in the crypto device */
 479                 while (deqd_tot < ctx->options->total_ops) {
 480                         /* Sending 0 length burst to flush sw crypto device */
 481                         rte_cryptodev_enqueue_burst(ctx->dev_id, ctx->qp_id, NULL, 0);
 482
 483                         /* dequeue burst */
 484                         ops_deqd = rte_cryptodev_dequeue_burst(ctx->dev_id, ctx->qp_id,
 485                                         ops_processed, test_burst_size);
 486
 487                         tsc_end = rte_rdtsc_precise();
 488
 489                         if (ops_deqd != 0) {
 490                                 for (i = 0; i < ops_deqd; i++)
 491                                         store_timestamp(ops_processed[i], tsc_end);
 492
 493                                 rte_mempool_put_bulk(ctx->crypto_op_pool,
 494                                                 (void **)ops_processed, ops_deqd);
 495
 496                                 deqd_tot += ops_deqd;
 497                                 deqd_max = max(ops_deqd, deqd_max);
 498                                 deqd_min = min(ops_deqd, deqd_min);
 499                         }
 500                 }
 501
 502                 for (i = 0; i < tsc_idx; i++) {
 503                         tsc_val = ctx->res[i].tsc_end - ctx->res[i].tsc_start;
 504                         tsc_max = max(tsc_val, tsc_max);
 505                         tsc_min = min(tsc_val, tsc_min);
 506                         tsc_tot += tsc_val;
 507                 }
 508
 509                 double time_tot, time_avg, time_max, time_min;
 510
 511                 const uint64_t tunit = 1000000; /* us */
 512                 const uint64_t tsc_hz = rte_get_tsc_hz();
 513
 514                 uint64_t enqd_avg = enqd_tot / b_idx;
 515                 uint64_t deqd_avg = deqd_tot / b_idx;
 516                 uint64_t tsc_avg = tsc_tot / tsc_idx;
 517
 518                 time_tot = tunit*(double)(tsc_tot) / tsc_hz;
 519                 time_avg = tunit*(double)(tsc_avg) / tsc_hz;
 520                 time_max = tunit*(double)(tsc_max) / tsc_hz;
 521                 time_min = tunit*(double)(tsc_min) / tsc_hz;
 522
 523                 if (ctx->options->csv) {
 524                         if (!only_once)
 525                                 printf("\n# lcore, Buffer Size, Burst Size, Pakt Seq #, "
 526                                                 "Packet Size, cycles, time (us)");
 527
 528                         for (i = 0; i < ctx->options->total_ops; i++) {
 529
 530                                 printf("\n%u;%u;%u;%"PRIu64";%"PRIu64";%.3f",
 531                                         ctx->lcore_id, ctx->options->test_buffer_size,
 532                                         test_burst_size, i + 1,
 533                                         ctx->res[i].tsc_end - ctx->res[i].tsc_start,
 534                                         tunit * (double) (ctx->res[i].tsc_end
 535                                                         - ctx->res[i].tsc_start)
 536                                                 / tsc_hz);
 537
 538                         }
 539                         only_once = 1;
 540                 } else {
 541                         printf("\n# Device %d on lcore %u\n", ctx->dev_id,
 542                                 ctx->lcore_id);
 543                         printf("\n# total operations: %u", ctx->options->total_ops);
 544                         printf("\n# Buffer size: %u", ctx->options->test_buffer_size);
 545                         printf("\n# Burst size: %u", test_burst_size);
 546                         printf("\n#     Number of bursts: %"PRIu64,
 547                                         b_idx);
 548
 549                         printf("\n#");
 550                         printf("\n#          \t       Total\t   Average\t   "
 551                                         "Maximum\t   Minimum");
 552                         printf("\n#  enqueued\t%12"PRIu64"\t%10"PRIu64"\t"
 553                                         "%10"PRIu64"\t%10"PRIu64, enqd_tot,
 554                                         enqd_avg, enqd_max, enqd_min);
 555                         printf("\n#  dequeued\t%12"PRIu64"\t%10"PRIu64"\t"
 556                                         "%10"PRIu64"\t%10"PRIu64, deqd_tot,
 557                                         deqd_avg, deqd_max, deqd_min);
 558                         printf("\n#    cycles\t%12"PRIu64"\t%10"PRIu64"\t"
 559                                         "%10"PRIu64"\t%10"PRIu64, tsc_tot,
 560                                         tsc_avg, tsc_max, tsc_min);
 561                         printf("\n# time [us]\t%12.0f\t%10.3f\t%10.3f\t%10.3f",
 562                                         time_tot, time_avg, time_max, time_min);
 563                         printf("\n\n");
 564
 565                 }
 566
 567                 /* Get next size from range or list */
 568                 if (ctx->options->inc_burst_size != 0)
 569                         test_burst_size += ctx->options->inc_burst_size;
 570                 else {
 571                         if (++burst_size_idx == ctx->options->burst_size_count)
 572                                 break;
 573                         test_burst_size =
 574                                 ctx->options->burst_size_list[burst_size_idx];
 575                 }
 576         }
 577
 578         return 0;
 579 }
 580
 581 void
 582 cperf_latency_test_destructor(void *arg)
 583 {
 584         struct cperf_latency_ctx *ctx = arg;
 585
 586         if (ctx == NULL)
 587                 return;
 588
 589         rte_cryptodev_stop(ctx->dev_id);
 590
 591         cperf_latency_test_free(ctx, ctx->options->pool_sz);
 592 }