ceph/src/seastar/dpdk/app/test-crypto-perf/cperf_test_throughput.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2016-2017 Intel Corporation
   3  */
   4
   5 #include <rte_malloc.h>
   6 #include <rte_cycles.h>
   7 #include <rte_crypto.h>
   8 #include <rte_cryptodev.h>
   9
  10 #include "cperf_test_throughput.h"
  11 #include "cperf_ops.h"
  12 #include "cperf_test_common.h"
  13
  14 struct cperf_throughput_ctx {
  15         uint8_t dev_id;
  16         uint16_t qp_id;
  17         uint8_t lcore_id;
  18
  19         struct rte_mempool *pool;
  20
  21         struct rte_cryptodev_sym_session *sess;
  22
  23         cperf_populate_ops_t populate_ops;
  24
  25         uint32_t src_buf_offset;
  26         uint32_t dst_buf_offset;
  27
  28         const struct cperf_options *options;
  29         const struct cperf_test_vector *test_vector;
  30 };
  31
  32 static void
  33 cperf_throughput_test_free(struct cperf_throughput_ctx *ctx)
  34 {
  35         if (ctx) {
  36                 if (ctx->sess) {
  37                         rte_cryptodev_sym_session_clear(ctx->dev_id, ctx->sess);
  38                         rte_cryptodev_sym_session_free(ctx->sess);
  39                 }
  40
  41                 if (ctx->pool)
  42                         rte_mempool_free(ctx->pool);
  43
  44                 rte_free(ctx);
  45         }
  46 }
  47
  48 void *
  49 cperf_throughput_test_constructor(struct rte_mempool *sess_mp,
  50                 struct rte_mempool *sess_priv_mp,
  51                 uint8_t dev_id, uint16_t qp_id,
  52                 const struct cperf_options *options,
  53                 const struct cperf_test_vector *test_vector,
  54                 const struct cperf_op_fns *op_fns)
  55 {
  56         struct cperf_throughput_ctx *ctx = NULL;
  57
  58         ctx = rte_malloc(NULL, sizeof(struct cperf_throughput_ctx), 0);
  59         if (ctx == NULL)
  60                 goto err;
  61
  62         ctx->dev_id = dev_id;
  63         ctx->qp_id = qp_id;
  64
  65         ctx->populate_ops = op_fns->populate_ops;
  66         ctx->options = options;
  67         ctx->test_vector = test_vector;
  68
  69         /* IV goes at the end of the crypto operation */
  70         uint16_t iv_offset = sizeof(struct rte_crypto_op) +
  71                 sizeof(struct rte_crypto_sym_op);
  72
  73         ctx->sess = op_fns->sess_create(sess_mp, sess_priv_mp, dev_id, options,
  74                         test_vector, iv_offset);
  75         if (ctx->sess == NULL)
  76                 goto err;
  77
  78         if (cperf_alloc_common_memory(options, test_vector, dev_id, qp_id, 0,
  79                         &ctx->src_buf_offset, &ctx->dst_buf_offset,
  80                         &ctx->pool) < 0)
  81                 goto err;
  82
  83         return ctx;
  84 err:
  85         cperf_throughput_test_free(ctx);
  86
  87         return NULL;
  88 }
  89
  90 int
  91 cperf_throughput_test_runner(void *test_ctx)
  92 {
  93         struct cperf_throughput_ctx *ctx = test_ctx;
  94         uint16_t test_burst_size;
  95         uint8_t burst_size_idx = 0;
  96         uint32_t imix_idx = 0;
  97
  98         static int only_once;
  99
 100         struct rte_crypto_op *ops[ctx->options->max_burst_size];
 101         struct rte_crypto_op *ops_processed[ctx->options->max_burst_size];
 102         uint64_t i;
 103
 104         uint32_t lcore = rte_lcore_id();
 105
 106 #ifdef CPERF_LINEARIZATION_ENABLE
 107         struct rte_cryptodev_info dev_info;
 108         int linearize = 0;
 109
 110         /* Check if source mbufs require coalescing */
 111         if (ctx->options->segment_sz < ctx->options->max_buffer_size) {
 112                 rte_cryptodev_info_get(ctx->dev_id, &dev_info);
 113                 if ((dev_info.feature_flags &
 114                                 RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER) == 0)
 115                         linearize = 1;
 116         }
 117 #endif /* CPERF_LINEARIZATION_ENABLE */
 118
 119         ctx->lcore_id = lcore;
 120
 121         /* Warm up the host CPU before starting the test */
 122         for (i = 0; i < ctx->options->total_ops; i++)
 123                 rte_cryptodev_enqueue_burst(ctx->dev_id, ctx->qp_id, NULL, 0);
 124
 125         /* Get first size from range or list */
 126         if (ctx->options->inc_burst_size != 0)
 127                 test_burst_size = ctx->options->min_burst_size;
 128         else
 129                 test_burst_size = ctx->options->burst_size_list[0];
 130
 131         uint16_t iv_offset = sizeof(struct rte_crypto_op) +
 132                 sizeof(struct rte_crypto_sym_op);
 133
 134         while (test_burst_size <= ctx->options->max_burst_size) {
 135                 uint64_t ops_enqd = 0, ops_enqd_total = 0, ops_enqd_failed = 0;
 136                 uint64_t ops_deqd = 0, ops_deqd_total = 0, ops_deqd_failed = 0;
 137
 138                 uint64_t tsc_start, tsc_end, tsc_duration;
 139
 140                 uint16_t ops_unused = 0;
 141
 142                 tsc_start = rte_rdtsc_precise();
 143
 144                 while (ops_enqd_total < ctx->options->total_ops) {
 145
 146                         uint16_t burst_size = ((ops_enqd_total + test_burst_size)
 147                                         <= ctx->options->total_ops) ?
 148                                                         test_burst_size :
 149                                                         ctx->options->total_ops -
 150                                                         ops_enqd_total;
 151
 152                         uint16_t ops_needed = burst_size - ops_unused;
 153
 154                         /* Allocate objects containing crypto operations and mbufs */
 155                         if (rte_mempool_get_bulk(ctx->pool, (void **)ops,
 156                                                 ops_needed) != 0) {
 157                                 RTE_LOG(ERR, USER1,
 158                                         "Failed to allocate more crypto operations "
 159                                         "from the crypto operation pool.\n"
 160                                         "Consider increasing the pool size "
 161                                         "with --pool-sz\n");
 162                                 return -1;
 163                         }
 164
 165                         /* Setup crypto op, attach mbuf etc */
 166                         (ctx->populate_ops)(ops, ctx->src_buf_offset,
 167                                         ctx->dst_buf_offset,
 168                                         ops_needed, ctx->sess,
 169                                         ctx->options, ctx->test_vector,
 170                                         iv_offset, &imix_idx);
 171
 172                         /**
 173                          * When ops_needed is smaller than ops_enqd, the
 174                          * unused ops need to be moved to the front for
 175                          * next round use.
 176                          */
 177                         if (unlikely(ops_enqd > ops_needed)) {
 178                                 size_t nb_b_to_mov = ops_unused * sizeof(
 179                                                 struct rte_crypto_op *);
 180
 181                                 memmove(&ops[ops_needed], &ops[ops_enqd],
 182                                         nb_b_to_mov);
 183                         }
 184
 185 #ifdef CPERF_LINEARIZATION_ENABLE
 186                         if (linearize) {
 187                                 /* PMD doesn't support scatter-gather and source buffer
 188                                  * is segmented.
 189                                  * We need to linearize it before enqueuing.
 190                                  */
 191                                 for (i = 0; i < burst_size; i++)
 192                                         rte_pktmbuf_linearize(ops[i]->sym->m_src);
 193                         }
 194 #endif /* CPERF_LINEARIZATION_ENABLE */
 195
 196                         /* Enqueue burst of ops on crypto device */
 197                         ops_enqd = rte_cryptodev_enqueue_burst(ctx->dev_id, ctx->qp_id,
 198                                         ops, burst_size);
 199                         if (ops_enqd < burst_size)
 200                                 ops_enqd_failed++;
 201
 202                         /**
 203                          * Calculate number of ops not enqueued (mainly for hw
 204                          * accelerators whose ingress queue can fill up).
 205                          */
 206                         ops_unused = burst_size - ops_enqd;
 207                         ops_enqd_total += ops_enqd;
 208
 209
 210                         /* Dequeue processed burst of ops from crypto device */
 211                         ops_deqd = rte_cryptodev_dequeue_burst(ctx->dev_id, ctx->qp_id,
 212                                         ops_processed, test_burst_size);
 213
 214                         if (likely(ops_deqd))  {
 215                                 /* Free crypto ops so they can be reused. */
 216                                 rte_mempool_put_bulk(ctx->pool,
 217                                                 (void **)ops_processed, ops_deqd);
 218
 219                                 ops_deqd_total += ops_deqd;
 220                         } else {
 221                                 /**
 222                                  * Count dequeue polls which didn't return any
 223                                  * processed operations. This statistic is mainly
 224                                  * relevant to hw accelerators.
 225                                  */
 226                                 ops_deqd_failed++;
 227                         }
 228
 229                 }
 230
 231                 /* Dequeue any operations still in the crypto device */
 232
 233                 while (ops_deqd_total < ctx->options->total_ops) {
 234                         /* Sending 0 length burst to flush sw crypto device */
 235                         rte_cryptodev_enqueue_burst(ctx->dev_id, ctx->qp_id, NULL, 0);
 236
 237                         /* dequeue burst */
 238                         ops_deqd = rte_cryptodev_dequeue_burst(ctx->dev_id, ctx->qp_id,
 239                                         ops_processed, test_burst_size);
 240                         if (ops_deqd == 0)
 241                                 ops_deqd_failed++;
 242                         else {
 243                                 rte_mempool_put_bulk(ctx->pool,
 244                                                 (void **)ops_processed, ops_deqd);
 245                                 ops_deqd_total += ops_deqd;
 246                         }
 247                 }
 248
 249                 tsc_end = rte_rdtsc_precise();
 250                 tsc_duration = (tsc_end - tsc_start);
 251
 252                 /* Calculate average operations processed per second */
 253                 double ops_per_second = ((double)ctx->options->total_ops /
 254                                 tsc_duration) * rte_get_tsc_hz();
 255
 256                 /* Calculate average throughput (Gbps) in bits per second */
 257                 double throughput_gbps = ((ops_per_second *
 258                                 ctx->options->test_buffer_size * 8) / 1000000000);
 259
 260                 /* Calculate average cycles per packet */
 261                 double cycles_per_packet = ((double)tsc_duration /
 262                                 ctx->options->total_ops);
 263
 264                 if (!ctx->options->csv) {
 265                         if (!only_once)
 266                                 printf("%12s%12s%12s%12s%12s%12s%12s%12s%12s%12s\n\n",
 267                                         "lcore id", "Buf Size", "Burst Size",
 268                                         "Enqueued", "Dequeued", "Failed Enq",
 269                                         "Failed Deq", "MOps", "Gbps",
 270                                         "Cycles/Buf");
 271                         only_once = 1;
 272
 273                         printf("%12u%12u%12u%12"PRIu64"%12"PRIu64"%12"PRIu64
 274                                         "%12"PRIu64"%12.4f%12.4f%12.2f\n",
 275                                         ctx->lcore_id,
 276                                         ctx->options->test_buffer_size,
 277                                         test_burst_size,
 278                                         ops_enqd_total,
 279                                         ops_deqd_total,
 280                                         ops_enqd_failed,
 281                                         ops_deqd_failed,
 282                                         ops_per_second/1000000,
 283                                         throughput_gbps,
 284                                         cycles_per_packet);
 285                 } else {
 286                         if (!only_once)
 287                                 printf("#lcore id,Buffer Size(B),"
 288                                         "Burst Size,Enqueued,Dequeued,Failed Enq,"
 289                                         "Failed Deq,Ops(Millions),Throughput(Gbps),"
 290                                         "Cycles/Buf\n\n");
 291                         only_once = 1;
 292
 293                         printf("%u;%u;%u;%"PRIu64";%"PRIu64";%"PRIu64";%"PRIu64";"
 294                                         "%.3f;%.3f;%.3f\n",
 295                                         ctx->lcore_id,
 296                                         ctx->options->test_buffer_size,
 297                                         test_burst_size,
 298                                         ops_enqd_total,
 299                                         ops_deqd_total,
 300                                         ops_enqd_failed,
 301                                         ops_deqd_failed,
 302                                         ops_per_second/1000000,
 303                                         throughput_gbps,
 304                                         cycles_per_packet);
 305                 }
 306
 307                 /* Get next size from range or list */
 308                 if (ctx->options->inc_burst_size != 0)
 309                         test_burst_size += ctx->options->inc_burst_size;
 310                 else {
 311                         if (++burst_size_idx == ctx->options->burst_size_count)
 312                                 break;
 313                         test_burst_size = ctx->options->burst_size_list[burst_size_idx];
 314                 }
 315
 316         }
 317
 318         return 0;
 319 }
 320
 321
 322 void
 323 cperf_throughput_test_destructor(void *arg)
 324 {
 325         struct cperf_throughput_ctx *ctx = arg;
 326
 327         if (ctx == NULL)
 328                 return;
 329
 330         cperf_throughput_test_free(ctx);
 331 }