backends/cryptodev.c

   1 /*
   2  * QEMU Crypto Device Implementation
   3  *
   4  * Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD.
   5  *
   6  * Authors:
   7  *    Gonglei <arei.gonglei@huawei.com>
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  21  *
  22  */
  23
  24 #include "qemu/osdep.h"
  25 #include "sysemu/cryptodev.h"
  26 #include "sysemu/stats.h"
  27 #include "qapi/error.h"
  28 #include "qapi/qapi-commands-cryptodev.h"
  29 #include "qapi/qapi-types-stats.h"
  30 #include "qapi/visitor.h"
  31 #include "qemu/config-file.h"
  32 #include "qemu/error-report.h"
  33 #include "qemu/main-loop.h"
  34 #include "qom/object_interfaces.h"
  35 #include "hw/virtio/virtio-crypto.h"
  36
  37 #define SYM_ENCRYPT_OPS_STR "sym-encrypt-ops"
  38 #define SYM_DECRYPT_OPS_STR "sym-decrypt-ops"
  39 #define SYM_ENCRYPT_BYTES_STR "sym-encrypt-bytes"
  40 #define SYM_DECRYPT_BYTES_STR "sym-decrypt-bytes"
  41
  42 #define ASYM_ENCRYPT_OPS_STR "asym-encrypt-ops"
  43 #define ASYM_DECRYPT_OPS_STR "asym-decrypt-ops"
  44 #define ASYM_SIGN_OPS_STR "asym-sign-ops"
  45 #define ASYM_VERIFY_OPS_STR "asym-verify-ops"
  46 #define ASYM_ENCRYPT_BYTES_STR "asym-encrypt-bytes"
  47 #define ASYM_DECRYPT_BYTES_STR "asym-decrypt-bytes"
  48 #define ASYM_SIGN_BYTES_STR "asym-sign-bytes"
  49 #define ASYM_VERIFY_BYTES_STR "asym-verify-bytes"
  50
  51 typedef struct StatsArgs {
  52     union StatsResultsType {
  53         StatsResultList **stats;
  54         StatsSchemaList **schema;
  55     } result;
  56     strList *names;
  57     Error **errp;
  58 } StatsArgs;
  59
  60 static QTAILQ_HEAD(, CryptoDevBackendClient) crypto_clients;
  61
  62 static int qmp_query_cryptodev_foreach(Object *obj, void *data)
  63 {
  64     CryptoDevBackend *backend;
  65     QCryptodevInfoList **infolist = data;
  66     uint32_t services, i;
  67
  68     if (!object_dynamic_cast(obj, TYPE_CRYPTODEV_BACKEND)) {
  69         return 0;
  70     }
  71
  72     QCryptodevInfo *info = g_new0(QCryptodevInfo, 1);
  73     info->id = g_strdup(object_get_canonical_path_component(obj));
  74
  75     backend = CRYPTODEV_BACKEND(obj);
  76     services = backend->conf.crypto_services;
  77     for (i = 0; i < QCRYPTODEV_BACKEND_SERVICE__MAX; i++) {
  78         if (services & (1 << i)) {
  79             QAPI_LIST_PREPEND(info->service, i);
  80         }
  81     }
  82
  83     for (i = 0; i < backend->conf.peers.queues; i++) {
  84         CryptoDevBackendClient *cc = backend->conf.peers.ccs[i];
  85         QCryptodevBackendClient *client = g_new0(QCryptodevBackendClient, 1);
  86
  87         client->queue = cc->queue_index;
  88         client->type = cc->type;
  89         QAPI_LIST_PREPEND(info->client, client);
  90     }
  91
  92     QAPI_LIST_PREPEND(*infolist, info);
  93
  94     return 0;
  95 }
  96
  97 QCryptodevInfoList *qmp_query_cryptodev(Error **errp)
  98 {
  99     QCryptodevInfoList *list = NULL;
 100     Object *objs = container_get(object_get_root(), "/objects");
 101
 102     object_child_foreach(objs, qmp_query_cryptodev_foreach, &list);
 103
 104     return list;
 105 }
 106
 107 CryptoDevBackendClient *cryptodev_backend_new_client(void)
 108 {
 109     CryptoDevBackendClient *cc;
 110
 111     cc = g_new0(CryptoDevBackendClient, 1);
 112     QTAILQ_INSERT_TAIL(&crypto_clients, cc, next);
 113
 114     return cc;
 115 }
 116
 117 void cryptodev_backend_free_client(
 118                   CryptoDevBackendClient *cc)
 119 {
 120     QTAILQ_REMOVE(&crypto_clients, cc, next);
 121     g_free(cc->info_str);
 122     g_free(cc);
 123 }
 124
 125 void cryptodev_backend_cleanup(
 126              CryptoDevBackend *backend,
 127              Error **errp)
 128 {
 129     CryptoDevBackendClass *bc =
 130                   CRYPTODEV_BACKEND_GET_CLASS(backend);
 131
 132     if (bc->cleanup) {
 133         bc->cleanup(backend, errp);
 134     }
 135
 136     g_free(backend->sym_stat);
 137     g_free(backend->asym_stat);
 138 }
 139
 140 int cryptodev_backend_create_session(
 141            CryptoDevBackend *backend,
 142            CryptoDevBackendSessionInfo *sess_info,
 143            uint32_t queue_index,
 144            CryptoDevCompletionFunc cb,
 145            void *opaque)
 146 {
 147     CryptoDevBackendClass *bc =
 148                       CRYPTODEV_BACKEND_GET_CLASS(backend);
 149
 150     if (bc->create_session) {
 151         return bc->create_session(backend, sess_info, queue_index, cb, opaque);
 152     }
 153     return -VIRTIO_CRYPTO_NOTSUPP;
 154 }
 155
 156 int cryptodev_backend_close_session(
 157            CryptoDevBackend *backend,
 158            uint64_t session_id,
 159            uint32_t queue_index,
 160            CryptoDevCompletionFunc cb,
 161            void *opaque)
 162 {
 163     CryptoDevBackendClass *bc =
 164                       CRYPTODEV_BACKEND_GET_CLASS(backend);
 165
 166     if (bc->close_session) {
 167         return bc->close_session(backend, session_id, queue_index, cb, opaque);
 168     }
 169     return -VIRTIO_CRYPTO_NOTSUPP;
 170 }
 171
 172 static int cryptodev_backend_operation(
 173                  CryptoDevBackend *backend,
 174                  CryptoDevBackendOpInfo *op_info)
 175 {
 176     CryptoDevBackendClass *bc =
 177                       CRYPTODEV_BACKEND_GET_CLASS(backend);
 178
 179     if (bc->do_op) {
 180         return bc->do_op(backend, op_info);
 181     }
 182     return -VIRTIO_CRYPTO_NOTSUPP;
 183 }
 184
 185 static int cryptodev_backend_account(CryptoDevBackend *backend,
 186                  CryptoDevBackendOpInfo *op_info)
 187 {
 188     enum QCryptodevBackendAlgType algtype = op_info->algtype;
 189     int len;
 190
 191     if (algtype == QCRYPTODEV_BACKEND_ALG_ASYM) {
 192         CryptoDevBackendAsymOpInfo *asym_op_info = op_info->u.asym_op_info;
 193         len = asym_op_info->src_len;
 194
 195         if (unlikely(!backend->asym_stat)) {
 196             error_report("cryptodev: Unexpected asym operation");
 197             return -VIRTIO_CRYPTO_NOTSUPP;
 198         }
 199         switch (op_info->op_code) {
 200         case VIRTIO_CRYPTO_AKCIPHER_ENCRYPT:
 201             CryptodevAsymStatIncEncrypt(backend, len);
 202             break;
 203         case VIRTIO_CRYPTO_AKCIPHER_DECRYPT:
 204             CryptodevAsymStatIncDecrypt(backend, len);
 205             break;
 206         case VIRTIO_CRYPTO_AKCIPHER_SIGN:
 207             CryptodevAsymStatIncSign(backend, len);
 208             break;
 209         case VIRTIO_CRYPTO_AKCIPHER_VERIFY:
 210             CryptodevAsymStatIncVerify(backend, len);
 211             break;
 212         default:
 213             return -VIRTIO_CRYPTO_NOTSUPP;
 214         }
 215     } else if (algtype == QCRYPTODEV_BACKEND_ALG_SYM) {
 216         CryptoDevBackendSymOpInfo *sym_op_info = op_info->u.sym_op_info;
 217         len = sym_op_info->src_len;
 218
 219         if (unlikely(!backend->sym_stat)) {
 220             error_report("cryptodev: Unexpected sym operation");
 221             return -VIRTIO_CRYPTO_NOTSUPP;
 222         }
 223         switch (op_info->op_code) {
 224         case VIRTIO_CRYPTO_CIPHER_ENCRYPT:
 225             CryptodevSymStatIncEncrypt(backend, len);
 226             break;
 227         case VIRTIO_CRYPTO_CIPHER_DECRYPT:
 228             CryptodevSymStatIncDecrypt(backend, len);
 229             break;
 230         default:
 231             return -VIRTIO_CRYPTO_NOTSUPP;
 232         }
 233     } else {
 234         error_report("Unsupported cryptodev alg type: %" PRIu32 "", algtype);
 235         return -VIRTIO_CRYPTO_NOTSUPP;
 236     }
 237
 238     return len;
 239 }
 240
 241 static void cryptodev_backend_throttle_timer_cb(void *opaque)
 242 {
 243     CryptoDevBackend *backend = (CryptoDevBackend *)opaque;
 244     CryptoDevBackendOpInfo *op_info, *tmpop;
 245     int ret;
 246
 247     QTAILQ_FOREACH_SAFE(op_info, &backend->opinfos, next, tmpop) {
 248         QTAILQ_REMOVE(&backend->opinfos, op_info, next);
 249         ret = cryptodev_backend_account(backend, op_info);
 250         if (ret < 0) {
 251             op_info->cb(op_info->opaque, ret);
 252             continue;
 253         }
 254
 255         throttle_account(&backend->ts, THROTTLE_WRITE, ret);
 256         cryptodev_backend_operation(backend, op_info);
 257         if (throttle_enabled(&backend->tc) &&
 258             throttle_schedule_timer(&backend->ts, &backend->tt,
 259                                     THROTTLE_WRITE)) {
 260             break;
 261         }
 262     }
 263 }
 264
 265 int cryptodev_backend_crypto_operation(
 266                  CryptoDevBackend *backend,
 267                  CryptoDevBackendOpInfo *op_info)
 268 {
 269     int ret;
 270
 271     if (!throttle_enabled(&backend->tc)) {
 272         goto do_account;
 273     }
 274
 275     if (throttle_schedule_timer(&backend->ts, &backend->tt, THROTTLE_WRITE) ||
 276         !QTAILQ_EMPTY(&backend->opinfos)) {
 277         QTAILQ_INSERT_TAIL(&backend->opinfos, op_info, next);
 278         return 0;
 279     }
 280
 281 do_account:
 282     ret = cryptodev_backend_account(backend, op_info);
 283     if (ret < 0) {
 284         return ret;
 285     }
 286
 287     throttle_account(&backend->ts, THROTTLE_WRITE, ret);
 288
 289     return cryptodev_backend_operation(backend, op_info);
 290 }
 291
 292 static void
 293 cryptodev_backend_get_queues(Object *obj, Visitor *v, const char *name,
 294                              void *opaque, Error **errp)
 295 {
 296     CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj);
 297     uint32_t value = backend->conf.peers.queues;
 298
 299     visit_type_uint32(v, name, &value, errp);
 300 }
 301
 302 static void
 303 cryptodev_backend_set_queues(Object *obj, Visitor *v, const char *name,
 304                              void *opaque, Error **errp)
 305 {
 306     CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj);
 307     uint32_t value;
 308
 309     if (!visit_type_uint32(v, name, &value, errp)) {
 310         return;
 311     }
 312     if (!value) {
 313         error_setg(errp, "Property '%s.%s' doesn't take value '%" PRIu32 "'",
 314                    object_get_typename(obj), name, value);
 315         return;
 316     }
 317     backend->conf.peers.queues = value;
 318 }
 319
 320 static void cryptodev_backend_set_throttle(CryptoDevBackend *backend, int field,
 321                                            uint64_t value, Error **errp)
 322 {
 323     uint64_t orig = backend->tc.buckets[field].avg;
 324     bool enabled = throttle_enabled(&backend->tc);
 325
 326     if (orig == value) {
 327         return;
 328     }
 329
 330     backend->tc.buckets[field].avg = value;
 331     if (!throttle_enabled(&backend->tc)) {
 332         throttle_timers_destroy(&backend->tt);
 333         cryptodev_backend_throttle_timer_cb(backend); /* drain opinfos */
 334         return;
 335     }
 336
 337     if (!throttle_is_valid(&backend->tc, errp)) {
 338         backend->tc.buckets[field].avg = orig; /* revert change */
 339         return;
 340     }
 341
 342     if (!enabled) {
 343         throttle_init(&backend->ts);
 344         throttle_timers_init(&backend->tt, qemu_get_aio_context(),
 345                              QEMU_CLOCK_REALTIME, NULL,
 346                              cryptodev_backend_throttle_timer_cb, backend);
 347     }
 348
 349     throttle_config(&backend->ts, QEMU_CLOCK_REALTIME, &backend->tc);
 350 }
 351
 352 static void cryptodev_backend_get_bps(Object *obj, Visitor *v,
 353                                       const char *name, void *opaque,
 354                                       Error **errp)
 355 {
 356     CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj);
 357     uint64_t value = backend->tc.buckets[THROTTLE_BPS_TOTAL].avg;
 358
 359     visit_type_uint64(v, name, &value, errp);
 360 }
 361
 362 static void cryptodev_backend_set_bps(Object *obj, Visitor *v, const char *name,
 363                                       void *opaque, Error **errp)
 364 {
 365     CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj);
 366     uint64_t value;
 367
 368     if (!visit_type_uint64(v, name, &value, errp)) {
 369         return;
 370     }
 371
 372     cryptodev_backend_set_throttle(backend, THROTTLE_BPS_TOTAL, value, errp);
 373 }
 374
 375 static void cryptodev_backend_get_ops(Object *obj, Visitor *v, const char *name,
 376                                       void *opaque, Error **errp)
 377 {
 378     CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj);
 379     uint64_t value = backend->tc.buckets[THROTTLE_OPS_TOTAL].avg;
 380
 381     visit_type_uint64(v, name, &value, errp);
 382 }
 383
 384 static void cryptodev_backend_set_ops(Object *obj, Visitor *v,
 385                                        const char *name, void *opaque,
 386                                        Error **errp)
 387 {
 388     CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj);
 389     uint64_t value;
 390
 391     if (!visit_type_uint64(v, name, &value, errp)) {
 392         return;
 393     }
 394
 395     cryptodev_backend_set_throttle(backend, THROTTLE_OPS_TOTAL, value, errp);
 396 }
 397
 398 static void
 399 cryptodev_backend_complete(UserCreatable *uc, Error **errp)
 400 {
 401     ERRP_GUARD();
 402     CryptoDevBackend *backend = CRYPTODEV_BACKEND(uc);
 403     CryptoDevBackendClass *bc = CRYPTODEV_BACKEND_GET_CLASS(uc);
 404     uint32_t services;
 405     uint64_t value;
 406
 407     QTAILQ_INIT(&backend->opinfos);
 408     value = backend->tc.buckets[THROTTLE_OPS_TOTAL].avg;
 409     cryptodev_backend_set_throttle(backend, THROTTLE_OPS_TOTAL, value, errp);
 410     if (*errp) {
 411         return;
 412     }
 413     value = backend->tc.buckets[THROTTLE_BPS_TOTAL].avg;
 414     cryptodev_backend_set_throttle(backend, THROTTLE_BPS_TOTAL, value, errp);
 415     if (*errp) {
 416         return;
 417     }
 418
 419     if (bc->init) {
 420         bc->init(backend, errp);
 421         if (*errp) {
 422             return;
 423         }
 424     }
 425
 426     services = backend->conf.crypto_services;
 427     if (services & (1 << QCRYPTODEV_BACKEND_SERVICE_CIPHER)) {
 428         backend->sym_stat = g_new0(CryptodevBackendSymStat, 1);
 429     }
 430
 431     if (services & (1 << QCRYPTODEV_BACKEND_SERVICE_AKCIPHER)) {
 432         backend->asym_stat = g_new0(CryptodevBackendAsymStat, 1);
 433     }
 434 }
 435
 436 void cryptodev_backend_set_used(CryptoDevBackend *backend, bool used)
 437 {
 438     backend->is_used = used;
 439 }
 440
 441 bool cryptodev_backend_is_used(CryptoDevBackend *backend)
 442 {
 443     return backend->is_used;
 444 }
 445
 446 void cryptodev_backend_set_ready(CryptoDevBackend *backend, bool ready)
 447 {
 448     backend->ready = ready;
 449 }
 450
 451 bool cryptodev_backend_is_ready(CryptoDevBackend *backend)
 452 {
 453     return backend->ready;
 454 }
 455
 456 static bool
 457 cryptodev_backend_can_be_deleted(UserCreatable *uc)
 458 {
 459     return !cryptodev_backend_is_used(CRYPTODEV_BACKEND(uc));
 460 }
 461
 462 static void cryptodev_backend_instance_init(Object *obj)
 463 {
 464     CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj);
 465
 466     /* Initialize devices' queues property to 1 */
 467     object_property_set_int(obj, "queues", 1, NULL);
 468
 469     throttle_config_init(&backend->tc);
 470 }
 471
 472 static void cryptodev_backend_finalize(Object *obj)
 473 {
 474     CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj);
 475
 476     cryptodev_backend_cleanup(backend, NULL);
 477     if (throttle_enabled(&backend->tc)) {
 478         throttle_timers_destroy(&backend->tt);
 479     }
 480 }
 481
 482 static StatsList *cryptodev_backend_stats_add(const char *name, int64_t *val,
 483                                               StatsList *stats_list)
 484 {
 485     Stats *stats = g_new0(Stats, 1);
 486
 487     stats->name = g_strdup(name);
 488     stats->value = g_new0(StatsValue, 1);
 489     stats->value->type = QTYPE_QNUM;
 490     stats->value->u.scalar = *val;
 491
 492     QAPI_LIST_PREPEND(stats_list, stats);
 493     return stats_list;
 494 }
 495
 496 static int cryptodev_backend_stats_query(Object *obj, void *data)
 497 {
 498     StatsArgs *stats_args = data;
 499     StatsResultList **stats_results = stats_args->result.stats;
 500     StatsList *stats_list = NULL;
 501     StatsResult *entry;
 502     CryptoDevBackend *backend;
 503     CryptodevBackendSymStat *sym_stat;
 504     CryptodevBackendAsymStat *asym_stat;
 505
 506     if (!object_dynamic_cast(obj, TYPE_CRYPTODEV_BACKEND)) {
 507         return 0;
 508     }
 509
 510     backend = CRYPTODEV_BACKEND(obj);
 511     sym_stat = backend->sym_stat;
 512     if (sym_stat) {
 513         stats_list = cryptodev_backend_stats_add(SYM_ENCRYPT_OPS_STR,
 514                          &sym_stat->encrypt_ops, stats_list);
 515         stats_list = cryptodev_backend_stats_add(SYM_DECRYPT_OPS_STR,
 516                          &sym_stat->decrypt_ops, stats_list);
 517         stats_list = cryptodev_backend_stats_add(SYM_ENCRYPT_BYTES_STR,
 518                          &sym_stat->encrypt_bytes, stats_list);
 519         stats_list = cryptodev_backend_stats_add(SYM_DECRYPT_BYTES_STR,
 520                          &sym_stat->decrypt_bytes, stats_list);
 521     }
 522
 523     asym_stat = backend->asym_stat;
 524     if (asym_stat) {
 525         stats_list = cryptodev_backend_stats_add(ASYM_ENCRYPT_OPS_STR,
 526                          &asym_stat->encrypt_ops, stats_list);
 527         stats_list = cryptodev_backend_stats_add(ASYM_DECRYPT_OPS_STR,
 528                          &asym_stat->decrypt_ops, stats_list);
 529         stats_list = cryptodev_backend_stats_add(ASYM_SIGN_OPS_STR,
 530                          &asym_stat->sign_ops, stats_list);
 531         stats_list = cryptodev_backend_stats_add(ASYM_VERIFY_OPS_STR,
 532                          &asym_stat->verify_ops, stats_list);
 533         stats_list = cryptodev_backend_stats_add(ASYM_ENCRYPT_BYTES_STR,
 534                          &asym_stat->encrypt_bytes, stats_list);
 535         stats_list = cryptodev_backend_stats_add(ASYM_DECRYPT_BYTES_STR,
 536                          &asym_stat->decrypt_bytes, stats_list);
 537         stats_list = cryptodev_backend_stats_add(ASYM_SIGN_BYTES_STR,
 538                          &asym_stat->sign_bytes, stats_list);
 539         stats_list = cryptodev_backend_stats_add(ASYM_VERIFY_BYTES_STR,
 540                          &asym_stat->verify_bytes, stats_list);
 541     }
 542
 543     entry = g_new0(StatsResult, 1);
 544     entry->provider = STATS_PROVIDER_CRYPTODEV;
 545     entry->qom_path = object_get_canonical_path(obj);
 546     entry->stats = stats_list;
 547     QAPI_LIST_PREPEND(*stats_results, entry);
 548
 549     return 0;
 550 }
 551
 552 static void cryptodev_backend_stats_cb(StatsResultList **result,
 553                                        StatsTarget target,
 554                                        strList *names, strList *targets,
 555                                        Error **errp)
 556 {
 557     switch (target) {
 558     case STATS_TARGET_CRYPTODEV:
 559     {
 560         Object *objs = container_get(object_get_root(), "/objects");
 561         StatsArgs stats_args;
 562         stats_args.result.stats = result;
 563         stats_args.names = names;
 564         stats_args.errp = errp;
 565
 566         object_child_foreach(objs, cryptodev_backend_stats_query, &stats_args);
 567         break;
 568     }
 569     default:
 570         break;
 571     }
 572 }
 573
 574 static StatsSchemaValueList *cryptodev_backend_schemas_add(const char *name,
 575                                  StatsSchemaValueList *list)
 576 {
 577     StatsSchemaValueList *schema_entry = g_new0(StatsSchemaValueList, 1);
 578
 579     schema_entry->value = g_new0(StatsSchemaValue, 1);
 580     schema_entry->value->type = STATS_TYPE_CUMULATIVE;
 581     schema_entry->value->name = g_strdup(name);
 582     schema_entry->next = list;
 583
 584     return schema_entry;
 585 }
 586
 587 static void cryptodev_backend_schemas_cb(StatsSchemaList **result,
 588                                          Error **errp)
 589 {
 590     StatsSchemaValueList *stats_list = NULL;
 591     const char *sym_stats[] = { SYM_ENCRYPT_OPS_STR, SYM_DECRYPT_OPS_STR,
 592                                 SYM_ENCRYPT_BYTES_STR, SYM_DECRYPT_BYTES_STR };
 593     const char *asym_stats[] = { ASYM_ENCRYPT_OPS_STR, ASYM_DECRYPT_OPS_STR,
 594                                  ASYM_SIGN_OPS_STR, ASYM_VERIFY_OPS_STR,
 595                                  ASYM_ENCRYPT_BYTES_STR, ASYM_DECRYPT_BYTES_STR,
 596                                  ASYM_SIGN_BYTES_STR, ASYM_VERIFY_BYTES_STR };
 597
 598     for (int i = 0; i < ARRAY_SIZE(sym_stats); i++) {
 599         stats_list = cryptodev_backend_schemas_add(sym_stats[i], stats_list);
 600     }
 601
 602     for (int i = 0; i < ARRAY_SIZE(asym_stats); i++) {
 603         stats_list = cryptodev_backend_schemas_add(asym_stats[i], stats_list);
 604     }
 605
 606     add_stats_schema(result, STATS_PROVIDER_CRYPTODEV, STATS_TARGET_CRYPTODEV,
 607                      stats_list);
 608 }
 609
 610 static void
 611 cryptodev_backend_class_init(ObjectClass *oc, void *data)
 612 {
 613     UserCreatableClass *ucc = USER_CREATABLE_CLASS(oc);
 614
 615     ucc->complete = cryptodev_backend_complete;
 616     ucc->can_be_deleted = cryptodev_backend_can_be_deleted;
 617
 618     QTAILQ_INIT(&crypto_clients);
 619     object_class_property_add(oc, "queues", "uint32",
 620                               cryptodev_backend_get_queues,
 621                               cryptodev_backend_set_queues,
 622                               NULL, NULL);
 623     object_class_property_add(oc, "throttle-bps", "uint64",
 624                               cryptodev_backend_get_bps,
 625                               cryptodev_backend_set_bps,
 626                               NULL, NULL);
 627     object_class_property_add(oc, "throttle-ops", "uint64",
 628                               cryptodev_backend_get_ops,
 629                               cryptodev_backend_set_ops,
 630                               NULL, NULL);
 631
 632     add_stats_callbacks(STATS_PROVIDER_CRYPTODEV, cryptodev_backend_stats_cb,
 633                         cryptodev_backend_schemas_cb);
 634 }
 635
 636 static const TypeInfo cryptodev_backend_info = {
 637     .name = TYPE_CRYPTODEV_BACKEND,
 638     .parent = TYPE_OBJECT,
 639     .instance_size = sizeof(CryptoDevBackend),
 640     .instance_init = cryptodev_backend_instance_init,
 641     .instance_finalize = cryptodev_backend_finalize,
 642     .class_size = sizeof(CryptoDevBackendClass),
 643     .class_init = cryptodev_backend_class_init,
 644     .interfaces = (InterfaceInfo[]) {
 645         { TYPE_USER_CREATABLE },
 646         { }
 647     }
 648 };
 649
 650 static void
 651 cryptodev_backend_register_types(void)
 652 {
 653     type_register_static(&cryptodev_backend_info);
 654 }
 655
 656 type_init(cryptodev_backend_register_types);