lib/librte_cryptodev/rte_cryptodev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2015-2017 Intel Corporation
   3  */
   4
   5 #include <sys/types.h>
   6 #include <sys/queue.h>
   7 #include <ctype.h>
   8 #include <stdio.h>
   9 #include <stdlib.h>
  10 #include <string.h>
  11 #include <stdarg.h>
  12 #include <errno.h>
  13 #include <stdint.h>
  14 #include <inttypes.h>
  15 #include <netinet/in.h>
  16
  17 #include <rte_byteorder.h>
  18 #include <rte_log.h>
  19 #include <rte_debug.h>
  20 #include <rte_dev.h>
  21 #include <rte_interrupts.h>
  22 #include <rte_memory.h>
  23 #include <rte_memcpy.h>
  24 #include <rte_memzone.h>
  25 #include <rte_launch.h>
  26 #include <rte_tailq.h>
  27 #include <rte_eal.h>
  28 #include <rte_per_lcore.h>
  29 #include <rte_lcore.h>
  30 #include <rte_atomic.h>
  31 #include <rte_branch_prediction.h>
  32 #include <rte_common.h>
  33 #include <rte_mempool.h>
  34 #include <rte_malloc.h>
  35 #include <rte_mbuf.h>
  36 #include <rte_errno.h>
  37 #include <rte_spinlock.h>
  38 #include <rte_string_fns.h>
  39
  40 #include "rte_crypto.h"
  41 #include "rte_cryptodev.h"
  42 #include "rte_cryptodev_pmd.h"
  43
  44 static uint8_t nb_drivers;
  45
  46 static struct rte_cryptodev rte_crypto_devices[RTE_CRYPTO_MAX_DEVS];
  47
  48 struct rte_cryptodev *rte_cryptodevs = rte_crypto_devices;
  49
  50 static struct rte_cryptodev_global cryptodev_globals = {
  51                 .devs                   = rte_crypto_devices,
  52                 .data                   = { NULL },
  53                 .nb_devs                = 0,
  54                 .max_devs               = RTE_CRYPTO_MAX_DEVS
  55 };
  56
  57 /* spinlock for crypto device callbacks */
  58 static rte_spinlock_t rte_cryptodev_cb_lock = RTE_SPINLOCK_INITIALIZER;
  59
  60
  61 /**
  62  * The user application callback description.
  63  *
  64  * It contains callback address to be registered by user application,
  65  * the pointer to the parameters for callback, and the event type.
  66  */
  67 struct rte_cryptodev_callback {
  68         TAILQ_ENTRY(rte_cryptodev_callback) next; /**< Callbacks list */
  69         rte_cryptodev_cb_fn cb_fn;              /**< Callback address */
  70         void *cb_arg;                           /**< Parameter for callback */
  71         enum rte_cryptodev_event_type event;    /**< Interrupt event type */
  72         uint32_t active;                        /**< Callback is executing */
  73 };
  74
  75 /**
  76  * The crypto cipher algorithm strings identifiers.
  77  * It could be used in application command line.
  78  */
  79 const char *
  80 rte_crypto_cipher_algorithm_strings[] = {
  81         [RTE_CRYPTO_CIPHER_3DES_CBC]    = "3des-cbc",
  82         [RTE_CRYPTO_CIPHER_3DES_ECB]    = "3des-ecb",
  83         [RTE_CRYPTO_CIPHER_3DES_CTR]    = "3des-ctr",
  84
  85         [RTE_CRYPTO_CIPHER_AES_CBC]     = "aes-cbc",
  86         [RTE_CRYPTO_CIPHER_AES_CTR]     = "aes-ctr",
  87         [RTE_CRYPTO_CIPHER_AES_DOCSISBPI]       = "aes-docsisbpi",
  88         [RTE_CRYPTO_CIPHER_AES_ECB]     = "aes-ecb",
  89         [RTE_CRYPTO_CIPHER_AES_F8]      = "aes-f8",
  90         [RTE_CRYPTO_CIPHER_AES_XTS]     = "aes-xts",
  91
  92         [RTE_CRYPTO_CIPHER_ARC4]        = "arc4",
  93
  94         [RTE_CRYPTO_CIPHER_DES_CBC]     = "des-cbc",
  95         [RTE_CRYPTO_CIPHER_DES_DOCSISBPI]       = "des-docsisbpi",
  96
  97         [RTE_CRYPTO_CIPHER_NULL]        = "null",
  98
  99         [RTE_CRYPTO_CIPHER_KASUMI_F8]   = "kasumi-f8",
 100         [RTE_CRYPTO_CIPHER_SNOW3G_UEA2] = "snow3g-uea2",
 101         [RTE_CRYPTO_CIPHER_ZUC_EEA3]    = "zuc-eea3"
 102 };
 103
 104 /**
 105  * The crypto cipher operation strings identifiers.
 106  * It could be used in application command line.
 107  */
 108 const char *
 109 rte_crypto_cipher_operation_strings[] = {
 110                 [RTE_CRYPTO_CIPHER_OP_ENCRYPT]  = "encrypt",
 111                 [RTE_CRYPTO_CIPHER_OP_DECRYPT]  = "decrypt"
 112 };
 113
 114 /**
 115  * The crypto auth algorithm strings identifiers.
 116  * It could be used in application command line.
 117  */
 118 const char *
 119 rte_crypto_auth_algorithm_strings[] = {
 120         [RTE_CRYPTO_AUTH_AES_CBC_MAC]   = "aes-cbc-mac",
 121         [RTE_CRYPTO_AUTH_AES_CMAC]      = "aes-cmac",
 122         [RTE_CRYPTO_AUTH_AES_GMAC]      = "aes-gmac",
 123         [RTE_CRYPTO_AUTH_AES_XCBC_MAC]  = "aes-xcbc-mac",
 124
 125         [RTE_CRYPTO_AUTH_MD5]           = "md5",
 126         [RTE_CRYPTO_AUTH_MD5_HMAC]      = "md5-hmac",
 127
 128         [RTE_CRYPTO_AUTH_NULL]          = "null",
 129
 130         [RTE_CRYPTO_AUTH_SHA1]          = "sha1",
 131         [RTE_CRYPTO_AUTH_SHA1_HMAC]     = "sha1-hmac",
 132
 133         [RTE_CRYPTO_AUTH_SHA224]        = "sha2-224",
 134         [RTE_CRYPTO_AUTH_SHA224_HMAC]   = "sha2-224-hmac",
 135         [RTE_CRYPTO_AUTH_SHA256]        = "sha2-256",
 136         [RTE_CRYPTO_AUTH_SHA256_HMAC]   = "sha2-256-hmac",
 137         [RTE_CRYPTO_AUTH_SHA384]        = "sha2-384",
 138         [RTE_CRYPTO_AUTH_SHA384_HMAC]   = "sha2-384-hmac",
 139         [RTE_CRYPTO_AUTH_SHA512]        = "sha2-512",
 140         [RTE_CRYPTO_AUTH_SHA512_HMAC]   = "sha2-512-hmac",
 141
 142         [RTE_CRYPTO_AUTH_KASUMI_F9]     = "kasumi-f9",
 143         [RTE_CRYPTO_AUTH_SNOW3G_UIA2]   = "snow3g-uia2",
 144         [RTE_CRYPTO_AUTH_ZUC_EIA3]      = "zuc-eia3"
 145 };
 146
 147 /**
 148  * The crypto AEAD algorithm strings identifiers.
 149  * It could be used in application command line.
 150  */
 151 const char *
 152 rte_crypto_aead_algorithm_strings[] = {
 153         [RTE_CRYPTO_AEAD_AES_CCM]       = "aes-ccm",
 154         [RTE_CRYPTO_AEAD_AES_GCM]       = "aes-gcm",
 155 };
 156
 157 /**
 158  * The crypto AEAD operation strings identifiers.
 159  * It could be used in application command line.
 160  */
 161 const char *
 162 rte_crypto_aead_operation_strings[] = {
 163         [RTE_CRYPTO_AEAD_OP_ENCRYPT]    = "encrypt",
 164         [RTE_CRYPTO_AEAD_OP_DECRYPT]    = "decrypt"
 165 };
 166
 167 /**
 168  * Asymmetric crypto transform operation strings identifiers.
 169  */
 170 const char *rte_crypto_asym_xform_strings[] = {
 171         [RTE_CRYPTO_ASYM_XFORM_NONE]    = "none",
 172         [RTE_CRYPTO_ASYM_XFORM_RSA]     = "rsa",
 173         [RTE_CRYPTO_ASYM_XFORM_MODEX]   = "modexp",
 174         [RTE_CRYPTO_ASYM_XFORM_MODINV]  = "modinv",
 175         [RTE_CRYPTO_ASYM_XFORM_DH]      = "dh",
 176         [RTE_CRYPTO_ASYM_XFORM_DSA]     = "dsa",
 177 };
 178
 179 /**
 180  * Asymmetric crypto operation strings identifiers.
 181  */
 182 const char *rte_crypto_asym_op_strings[] = {
 183         [RTE_CRYPTO_ASYM_OP_ENCRYPT]    = "encrypt",
 184         [RTE_CRYPTO_ASYM_OP_DECRYPT]    = "decrypt",
 185         [RTE_CRYPTO_ASYM_OP_SIGN]       = "sign",
 186         [RTE_CRYPTO_ASYM_OP_VERIFY]     = "verify",
 187         [RTE_CRYPTO_ASYM_OP_PRIVATE_KEY_GENERATE]       = "priv_key_generate",
 188         [RTE_CRYPTO_ASYM_OP_PUBLIC_KEY_GENERATE] = "pub_key_generate",
 189         [RTE_CRYPTO_ASYM_OP_SHARED_SECRET_COMPUTE] = "sharedsecret_compute",
 190 };
 191
 192 /**
 193  * The private data structure stored in the session mempool private data.
 194  */
 195 struct rte_cryptodev_sym_session_pool_private_data {
 196         uint16_t nb_drivers;
 197         /**< number of elements in sess_data array */
 198         uint16_t user_data_sz;
 199         /**< session user data will be placed after sess_data */
 200 };
 201
 202 int
 203 rte_cryptodev_get_cipher_algo_enum(enum rte_crypto_cipher_algorithm *algo_enum,
 204                 const char *algo_string)
 205 {
 206         unsigned int i;
 207
 208         for (i = 1; i < RTE_DIM(rte_crypto_cipher_algorithm_strings); i++) {
 209                 if (strcmp(algo_string, rte_crypto_cipher_algorithm_strings[i]) == 0) {
 210                         *algo_enum = (enum rte_crypto_cipher_algorithm) i;
 211                         return 0;
 212                 }
 213         }
 214
 215         /* Invalid string */
 216         return -1;
 217 }
 218
 219 int
 220 rte_cryptodev_get_auth_algo_enum(enum rte_crypto_auth_algorithm *algo_enum,
 221                 const char *algo_string)
 222 {
 223         unsigned int i;
 224
 225         for (i = 1; i < RTE_DIM(rte_crypto_auth_algorithm_strings); i++) {
 226                 if (strcmp(algo_string, rte_crypto_auth_algorithm_strings[i]) == 0) {
 227                         *algo_enum = (enum rte_crypto_auth_algorithm) i;
 228                         return 0;
 229                 }
 230         }
 231
 232         /* Invalid string */
 233         return -1;
 234 }
 235
 236 int
 237 rte_cryptodev_get_aead_algo_enum(enum rte_crypto_aead_algorithm *algo_enum,
 238                 const char *algo_string)
 239 {
 240         unsigned int i;
 241
 242         for (i = 1; i < RTE_DIM(rte_crypto_aead_algorithm_strings); i++) {
 243                 if (strcmp(algo_string, rte_crypto_aead_algorithm_strings[i]) == 0) {
 244                         *algo_enum = (enum rte_crypto_aead_algorithm) i;
 245                         return 0;
 246                 }
 247         }
 248
 249         /* Invalid string */
 250         return -1;
 251 }
 252
 253 int __rte_experimental
 254 rte_cryptodev_asym_get_xform_enum(enum rte_crypto_asym_xform_type *xform_enum,
 255                 const char *xform_string)
 256 {
 257         unsigned int i;
 258
 259         for (i = 1; i < RTE_DIM(rte_crypto_asym_xform_strings); i++) {
 260                 if (strcmp(xform_string,
 261                         rte_crypto_asym_xform_strings[i]) == 0) {
 262                         *xform_enum = (enum rte_crypto_asym_xform_type) i;
 263                         return 0;
 264                 }
 265         }
 266
 267         /* Invalid string */
 268         return -1;
 269 }
 270
 271 /**
 272  * The crypto auth operation strings identifiers.
 273  * It could be used in application command line.
 274  */
 275 const char *
 276 rte_crypto_auth_operation_strings[] = {
 277                 [RTE_CRYPTO_AUTH_OP_VERIFY]     = "verify",
 278                 [RTE_CRYPTO_AUTH_OP_GENERATE]   = "generate"
 279 };
 280
 281 const struct rte_cryptodev_symmetric_capability *
 282 rte_cryptodev_sym_capability_get(uint8_t dev_id,
 283                 const struct rte_cryptodev_sym_capability_idx *idx)
 284 {
 285         const struct rte_cryptodev_capabilities *capability;
 286         struct rte_cryptodev_info dev_info;
 287         int i = 0;
 288
 289         rte_cryptodev_info_get(dev_id, &dev_info);
 290
 291         while ((capability = &dev_info.capabilities[i++])->op !=
 292                         RTE_CRYPTO_OP_TYPE_UNDEFINED) {
 293                 if (capability->op != RTE_CRYPTO_OP_TYPE_SYMMETRIC)
 294                         continue;
 295
 296                 if (capability->sym.xform_type != idx->type)
 297                         continue;
 298
 299                 if (idx->type == RTE_CRYPTO_SYM_XFORM_AUTH &&
 300                         capability->sym.auth.algo == idx->algo.auth)
 301                         return &capability->sym;
 302
 303                 if (idx->type == RTE_CRYPTO_SYM_XFORM_CIPHER &&
 304                         capability->sym.cipher.algo == idx->algo.cipher)
 305                         return &capability->sym;
 306
 307                 if (idx->type == RTE_CRYPTO_SYM_XFORM_AEAD &&
 308                                 capability->sym.aead.algo == idx->algo.aead)
 309                         return &capability->sym;
 310         }
 311
 312         return NULL;
 313
 314 }
 315
 316 static int
 317 param_range_check(uint16_t size, const struct rte_crypto_param_range *range)
 318 {
 319         unsigned int next_size;
 320
 321         /* Check lower/upper bounds */
 322         if (size < range->min)
 323                 return -1;
 324
 325         if (size > range->max)
 326                 return -1;
 327
 328         /* If range is actually only one value, size is correct */
 329         if (range->increment == 0)
 330                 return 0;
 331
 332         /* Check if value is one of the supported sizes */
 333         for (next_size = range->min; next_size <= range->max;
 334                         next_size += range->increment)
 335                 if (size == next_size)
 336                         return 0;
 337
 338         return -1;
 339 }
 340
 341 const struct rte_cryptodev_asymmetric_xform_capability * __rte_experimental
 342 rte_cryptodev_asym_capability_get(uint8_t dev_id,
 343                 const struct rte_cryptodev_asym_capability_idx *idx)
 344 {
 345         const struct rte_cryptodev_capabilities *capability;
 346         struct rte_cryptodev_info dev_info;
 347         unsigned int i = 0;
 348
 349         memset(&dev_info, 0, sizeof(struct rte_cryptodev_info));
 350         rte_cryptodev_info_get(dev_id, &dev_info);
 351
 352         while ((capability = &dev_info.capabilities[i++])->op !=
 353                         RTE_CRYPTO_OP_TYPE_UNDEFINED) {
 354                 if (capability->op != RTE_CRYPTO_OP_TYPE_ASYMMETRIC)
 355                         continue;
 356
 357                 if (capability->asym.xform_capa.xform_type == idx->type)
 358                         return &capability->asym.xform_capa;
 359         }
 360         return NULL;
 361 };
 362
 363 int
 364 rte_cryptodev_sym_capability_check_cipher(
 365                 const struct rte_cryptodev_symmetric_capability *capability,
 366                 uint16_t key_size, uint16_t iv_size)
 367 {
 368         if (param_range_check(key_size, &capability->cipher.key_size) != 0)
 369                 return -1;
 370
 371         if (param_range_check(iv_size, &capability->cipher.iv_size) != 0)
 372                 return -1;
 373
 374         return 0;
 375 }
 376
 377 int
 378 rte_cryptodev_sym_capability_check_auth(
 379                 const struct rte_cryptodev_symmetric_capability *capability,
 380                 uint16_t key_size, uint16_t digest_size, uint16_t iv_size)
 381 {
 382         if (param_range_check(key_size, &capability->auth.key_size) != 0)
 383                 return -1;
 384
 385         if (param_range_check(digest_size, &capability->auth.digest_size) != 0)
 386                 return -1;
 387
 388         if (param_range_check(iv_size, &capability->auth.iv_size) != 0)
 389                 return -1;
 390
 391         return 0;
 392 }
 393
 394 int
 395 rte_cryptodev_sym_capability_check_aead(
 396                 const struct rte_cryptodev_symmetric_capability *capability,
 397                 uint16_t key_size, uint16_t digest_size, uint16_t aad_size,
 398                 uint16_t iv_size)
 399 {
 400         if (param_range_check(key_size, &capability->aead.key_size) != 0)
 401                 return -1;
 402
 403         if (param_range_check(digest_size, &capability->aead.digest_size) != 0)
 404                 return -1;
 405
 406         if (param_range_check(aad_size, &capability->aead.aad_size) != 0)
 407                 return -1;
 408
 409         if (param_range_check(iv_size, &capability->aead.iv_size) != 0)
 410                 return -1;
 411
 412         return 0;
 413 }
 414 int __rte_experimental
 415 rte_cryptodev_asym_xform_capability_check_optype(
 416         const struct rte_cryptodev_asymmetric_xform_capability *capability,
 417         enum rte_crypto_asym_op_type op_type)
 418 {
 419         if (capability->op_types & (1 << op_type))
 420                 return 1;
 421
 422         return 0;
 423 }
 424
 425 int __rte_experimental
 426 rte_cryptodev_asym_xform_capability_check_modlen(
 427         const struct rte_cryptodev_asymmetric_xform_capability *capability,
 428         uint16_t modlen)
 429 {
 430         /* no need to check for limits, if min or max = 0 */
 431         if (capability->modlen.min != 0) {
 432                 if (modlen < capability->modlen.min)
 433                         return -1;
 434         }
 435
 436         if (capability->modlen.max != 0) {
 437                 if (modlen > capability->modlen.max)
 438                         return -1;
 439         }
 440
 441         /* in any case, check if given modlen is module increment */
 442         if (capability->modlen.increment != 0) {
 443                 if (modlen % (capability->modlen.increment))
 444                         return -1;
 445         }
 446
 447         return 0;
 448 }
 449
 450
 451 const char *
 452 rte_cryptodev_get_feature_name(uint64_t flag)
 453 {
 454         switch (flag) {
 455         case RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO:
 456                 return "SYMMETRIC_CRYPTO";
 457         case RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO:
 458                 return "ASYMMETRIC_CRYPTO";
 459         case RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING:
 460                 return "SYM_OPERATION_CHAINING";
 461         case RTE_CRYPTODEV_FF_CPU_SSE:
 462                 return "CPU_SSE";
 463         case RTE_CRYPTODEV_FF_CPU_AVX:
 464                 return "CPU_AVX";
 465         case RTE_CRYPTODEV_FF_CPU_AVX2:
 466                 return "CPU_AVX2";
 467         case RTE_CRYPTODEV_FF_CPU_AVX512:
 468                 return "CPU_AVX512";
 469         case RTE_CRYPTODEV_FF_CPU_AESNI:
 470                 return "CPU_AESNI";
 471         case RTE_CRYPTODEV_FF_HW_ACCELERATED:
 472                 return "HW_ACCELERATED";
 473         case RTE_CRYPTODEV_FF_IN_PLACE_SGL:
 474                 return "IN_PLACE_SGL";
 475         case RTE_CRYPTODEV_FF_OOP_SGL_IN_SGL_OUT:
 476                 return "OOP_SGL_IN_SGL_OUT";
 477         case RTE_CRYPTODEV_FF_OOP_SGL_IN_LB_OUT:
 478                 return "OOP_SGL_IN_LB_OUT";
 479         case RTE_CRYPTODEV_FF_OOP_LB_IN_SGL_OUT:
 480                 return "OOP_LB_IN_SGL_OUT";
 481         case RTE_CRYPTODEV_FF_OOP_LB_IN_LB_OUT:
 482                 return "OOP_LB_IN_LB_OUT";
 483         case RTE_CRYPTODEV_FF_CPU_NEON:
 484                 return "CPU_NEON";
 485         case RTE_CRYPTODEV_FF_CPU_ARM_CE:
 486                 return "CPU_ARM_CE";
 487         case RTE_CRYPTODEV_FF_SECURITY:
 488                 return "SECURITY_PROTOCOL";
 489         default:
 490                 return NULL;
 491         }
 492 }
 493
 494 struct rte_cryptodev *
 495 rte_cryptodev_pmd_get_dev(uint8_t dev_id)
 496 {
 497         return &cryptodev_globals.devs[dev_id];
 498 }
 499
 500 struct rte_cryptodev *
 501 rte_cryptodev_pmd_get_named_dev(const char *name)
 502 {
 503         struct rte_cryptodev *dev;
 504         unsigned int i;
 505
 506         if (name == NULL)
 507                 return NULL;
 508
 509         for (i = 0; i < cryptodev_globals.max_devs; i++) {
 510                 dev = &cryptodev_globals.devs[i];
 511
 512                 if ((dev->attached == RTE_CRYPTODEV_ATTACHED) &&
 513                                 (strcmp(dev->data->name, name) == 0))
 514                         return dev;
 515         }
 516
 517         return NULL;
 518 }
 519
 520 unsigned int
 521 rte_cryptodev_pmd_is_valid_dev(uint8_t dev_id)
 522 {
 523         struct rte_cryptodev *dev = NULL;
 524
 525         if (dev_id >= cryptodev_globals.nb_devs)
 526                 return 0;
 527
 528         dev = rte_cryptodev_pmd_get_dev(dev_id);
 529         if (dev->attached != RTE_CRYPTODEV_ATTACHED)
 530                 return 0;
 531         else
 532                 return 1;
 533 }
 534
 535
 536 int
 537 rte_cryptodev_get_dev_id(const char *name)
 538 {
 539         unsigned i;
 540
 541         if (name == NULL)
 542                 return -1;
 543
 544         for (i = 0; i < cryptodev_globals.nb_devs; i++)
 545                 if ((strcmp(cryptodev_globals.devs[i].data->name, name)
 546                                 == 0) &&
 547                                 (cryptodev_globals.devs[i].attached ==
 548                                                 RTE_CRYPTODEV_ATTACHED))
 549                         return i;
 550
 551         return -1;
 552 }
 553
 554 uint8_t
 555 rte_cryptodev_count(void)
 556 {
 557         return cryptodev_globals.nb_devs;
 558 }
 559
 560 uint8_t
 561 rte_cryptodev_device_count_by_driver(uint8_t driver_id)
 562 {
 563         uint8_t i, dev_count = 0;
 564
 565         for (i = 0; i < cryptodev_globals.max_devs; i++)
 566                 if (cryptodev_globals.devs[i].driver_id == driver_id &&
 567                         cryptodev_globals.devs[i].attached ==
 568                                         RTE_CRYPTODEV_ATTACHED)
 569                         dev_count++;
 570
 571         return dev_count;
 572 }
 573
 574 uint8_t
 575 rte_cryptodev_devices_get(const char *driver_name, uint8_t *devices,
 576         uint8_t nb_devices)
 577 {
 578         uint8_t i, count = 0;
 579         struct rte_cryptodev *devs = cryptodev_globals.devs;
 580         uint8_t max_devs = cryptodev_globals.max_devs;
 581
 582         for (i = 0; i < max_devs && count < nb_devices; i++) {
 583
 584                 if (devs[i].attached == RTE_CRYPTODEV_ATTACHED) {
 585                         int cmp;
 586
 587                         cmp = strncmp(devs[i].device->driver->name,
 588                                         driver_name,
 589                                         strlen(driver_name));
 590
 591                         if (cmp == 0)
 592                                 devices[count++] = devs[i].data->dev_id;
 593                 }
 594         }
 595
 596         return count;
 597 }
 598
 599 void *
 600 rte_cryptodev_get_sec_ctx(uint8_t dev_id)
 601 {
 602         if (rte_crypto_devices[dev_id].feature_flags &
 603                         RTE_CRYPTODEV_FF_SECURITY)
 604                 return rte_crypto_devices[dev_id].security_ctx;
 605
 606         return NULL;
 607 }
 608
 609 int
 610 rte_cryptodev_socket_id(uint8_t dev_id)
 611 {
 612         struct rte_cryptodev *dev;
 613
 614         if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
 615                 return -1;
 616
 617         dev = rte_cryptodev_pmd_get_dev(dev_id);
 618
 619         return dev->data->socket_id;
 620 }
 621
 622 static inline int
 623 rte_cryptodev_data_alloc(uint8_t dev_id, struct rte_cryptodev_data **data,
 624                 int socket_id)
 625 {
 626         char mz_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 627         const struct rte_memzone *mz;
 628         int n;
 629
 630         /* generate memzone name */
 631         n = snprintf(mz_name, sizeof(mz_name), "rte_cryptodev_data_%u", dev_id);
 632         if (n >= (int)sizeof(mz_name))
 633                 return -EINVAL;
 634
 635         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 636                 mz = rte_memzone_reserve(mz_name,
 637                                 sizeof(struct rte_cryptodev_data),
 638                                 socket_id, 0);
 639         } else
 640                 mz = rte_memzone_lookup(mz_name);
 641
 642         if (mz == NULL)
 643                 return -ENOMEM;
 644
 645         *data = mz->addr;
 646         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 647                 memset(*data, 0, sizeof(struct rte_cryptodev_data));
 648
 649         return 0;
 650 }
 651
 652 static uint8_t
 653 rte_cryptodev_find_free_device_index(void)
 654 {
 655         uint8_t dev_id;
 656
 657         for (dev_id = 0; dev_id < RTE_CRYPTO_MAX_DEVS; dev_id++) {
 658                 if (rte_crypto_devices[dev_id].attached ==
 659                                 RTE_CRYPTODEV_DETACHED)
 660                         return dev_id;
 661         }
 662         return RTE_CRYPTO_MAX_DEVS;
 663 }
 664
 665 struct rte_cryptodev *
 666 rte_cryptodev_pmd_allocate(const char *name, int socket_id)
 667 {
 668         struct rte_cryptodev *cryptodev;
 669         uint8_t dev_id;
 670
 671         if (rte_cryptodev_pmd_get_named_dev(name) != NULL) {
 672                 CDEV_LOG_ERR("Crypto device with name %s already "
 673                                 "allocated!", name);
 674                 return NULL;
 675         }
 676
 677         dev_id = rte_cryptodev_find_free_device_index();
 678         if (dev_id == RTE_CRYPTO_MAX_DEVS) {
 679                 CDEV_LOG_ERR("Reached maximum number of crypto devices");
 680                 return NULL;
 681         }
 682
 683         cryptodev = rte_cryptodev_pmd_get_dev(dev_id);
 684
 685         if (cryptodev->data == NULL) {
 686                 struct rte_cryptodev_data *cryptodev_data =
 687                                 cryptodev_globals.data[dev_id];
 688
 689                 int retval = rte_cryptodev_data_alloc(dev_id, &cryptodev_data,
 690                                 socket_id);
 691
 692                 if (retval < 0 || cryptodev_data == NULL)
 693                         return NULL;
 694
 695                 cryptodev->data = cryptodev_data;
 696
 697                 snprintf(cryptodev->data->name, RTE_CRYPTODEV_NAME_MAX_LEN,
 698                                 "%s", name);
 699
 700                 cryptodev->data->dev_id = dev_id;
 701                 cryptodev->data->socket_id = socket_id;
 702                 cryptodev->data->dev_started = 0;
 703
 704                 /* init user callbacks */
 705                 TAILQ_INIT(&(cryptodev->link_intr_cbs));
 706
 707                 cryptodev->attached = RTE_CRYPTODEV_ATTACHED;
 708
 709                 cryptodev_globals.nb_devs++;
 710         }
 711
 712         return cryptodev;
 713 }
 714
 715 int
 716 rte_cryptodev_pmd_release_device(struct rte_cryptodev *cryptodev)
 717 {
 718         int ret;
 719
 720         if (cryptodev == NULL)
 721                 return -EINVAL;
 722
 723         /* Close device only if device operations have been set */
 724         if (cryptodev->dev_ops) {
 725                 ret = rte_cryptodev_close(cryptodev->data->dev_id);
 726                 if (ret < 0)
 727                         return ret;
 728         }
 729
 730         cryptodev->attached = RTE_CRYPTODEV_DETACHED;
 731         cryptodev_globals.nb_devs--;
 732         return 0;
 733 }
 734
 735 uint16_t
 736 rte_cryptodev_queue_pair_count(uint8_t dev_id)
 737 {
 738         struct rte_cryptodev *dev;
 739
 740         dev = &rte_crypto_devices[dev_id];
 741         return dev->data->nb_queue_pairs;
 742 }
 743
 744 static int
 745 rte_cryptodev_queue_pairs_config(struct rte_cryptodev *dev, uint16_t nb_qpairs,
 746                 int socket_id)
 747 {
 748         struct rte_cryptodev_info dev_info;
 749         void **qp;
 750         unsigned i;
 751
 752         if ((dev == NULL) || (nb_qpairs < 1)) {
 753                 CDEV_LOG_ERR("invalid param: dev %p, nb_queues %u",
 754                                                         dev, nb_qpairs);
 755                 return -EINVAL;
 756         }
 757
 758         CDEV_LOG_DEBUG("Setup %d queues pairs on device %u",
 759                         nb_qpairs, dev->data->dev_id);
 760
 761         memset(&dev_info, 0, sizeof(struct rte_cryptodev_info));
 762
 763         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP);
 764         (*dev->dev_ops->dev_infos_get)(dev, &dev_info);
 765
 766         if (nb_qpairs > (dev_info.max_nb_queue_pairs)) {
 767                 CDEV_LOG_ERR("Invalid num queue_pairs (%u) for dev %u",
 768                                 nb_qpairs, dev->data->dev_id);
 769             return -EINVAL;
 770         }
 771
 772         if (dev->data->queue_pairs == NULL) { /* first time configuration */
 773                 dev->data->queue_pairs = rte_zmalloc_socket(
 774                                 "cryptodev->queue_pairs",
 775                                 sizeof(dev->data->queue_pairs[0]) * nb_qpairs,
 776                                 RTE_CACHE_LINE_SIZE, socket_id);
 777
 778                 if (dev->data->queue_pairs == NULL) {
 779                         dev->data->nb_queue_pairs = 0;
 780                         CDEV_LOG_ERR("failed to get memory for qp meta data, "
 781                                                         "nb_queues %u",
 782                                                         nb_qpairs);
 783                         return -(ENOMEM);
 784                 }
 785         } else { /* re-configure */
 786                 int ret;
 787                 uint16_t old_nb_queues = dev->data->nb_queue_pairs;
 788
 789                 qp = dev->data->queue_pairs;
 790
 791                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_release,
 792                                 -ENOTSUP);
 793
 794                 for (i = nb_qpairs; i < old_nb_queues; i++) {
 795                         ret = (*dev->dev_ops->queue_pair_release)(dev, i);
 796                         if (ret < 0)
 797                                 return ret;
 798                 }
 799
 800                 qp = rte_realloc(qp, sizeof(qp[0]) * nb_qpairs,
 801                                 RTE_CACHE_LINE_SIZE);
 802                 if (qp == NULL) {
 803                         CDEV_LOG_ERR("failed to realloc qp meta data,"
 804                                                 " nb_queues %u", nb_qpairs);
 805                         return -(ENOMEM);
 806                 }
 807
 808                 if (nb_qpairs > old_nb_queues) {
 809                         uint16_t new_qs = nb_qpairs - old_nb_queues;
 810
 811                         memset(qp + old_nb_queues, 0,
 812                                 sizeof(qp[0]) * new_qs);
 813                 }
 814
 815                 dev->data->queue_pairs = qp;
 816
 817         }
 818         dev->data->nb_queue_pairs = nb_qpairs;
 819         return 0;
 820 }
 821
 822 int
 823 rte_cryptodev_configure(uint8_t dev_id, struct rte_cryptodev_config *config)
 824 {
 825         struct rte_cryptodev *dev;
 826         int diag;
 827
 828         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 829                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 830                 return -EINVAL;
 831         }
 832
 833         dev = &rte_crypto_devices[dev_id];
 834
 835         if (dev->data->dev_started) {
 836                 CDEV_LOG_ERR(
 837                     "device %d must be stopped to allow configuration", dev_id);
 838                 return -EBUSY;
 839         }
 840
 841         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_configure, -ENOTSUP);
 842
 843         /* Setup new number of queue pairs and reconfigure device. */
 844         diag = rte_cryptodev_queue_pairs_config(dev, config->nb_queue_pairs,
 845                         config->socket_id);
 846         if (diag != 0) {
 847                 CDEV_LOG_ERR("dev%d rte_crypto_dev_queue_pairs_config = %d",
 848                                 dev_id, diag);
 849                 return diag;
 850         }
 851
 852         return (*dev->dev_ops->dev_configure)(dev, config);
 853 }
 854
 855
 856 int
 857 rte_cryptodev_start(uint8_t dev_id)
 858 {
 859         struct rte_cryptodev *dev;
 860         int diag;
 861
 862         CDEV_LOG_DEBUG("Start dev_id=%" PRIu8, dev_id);
 863
 864         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 865                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 866                 return -EINVAL;
 867         }
 868
 869         dev = &rte_crypto_devices[dev_id];
 870
 871         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_start, -ENOTSUP);
 872
 873         if (dev->data->dev_started != 0) {
 874                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already started",
 875                         dev_id);
 876                 return 0;
 877         }
 878
 879         diag = (*dev->dev_ops->dev_start)(dev);
 880         if (diag == 0)
 881                 dev->data->dev_started = 1;
 882         else
 883                 return diag;
 884
 885         return 0;
 886 }
 887
 888 void
 889 rte_cryptodev_stop(uint8_t dev_id)
 890 {
 891         struct rte_cryptodev *dev;
 892
 893         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 894                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 895                 return;
 896         }
 897
 898         dev = &rte_crypto_devices[dev_id];
 899
 900         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_stop);
 901
 902         if (dev->data->dev_started == 0) {
 903                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already stopped",
 904                         dev_id);
 905                 return;
 906         }
 907
 908         (*dev->dev_ops->dev_stop)(dev);
 909         dev->data->dev_started = 0;
 910 }
 911
 912 int
 913 rte_cryptodev_close(uint8_t dev_id)
 914 {
 915         struct rte_cryptodev *dev;
 916         int retval;
 917
 918         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 919                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 920                 return -1;
 921         }
 922
 923         dev = &rte_crypto_devices[dev_id];
 924
 925         /* Device must be stopped before it can be closed */
 926         if (dev->data->dev_started == 1) {
 927                 CDEV_LOG_ERR("Device %u must be stopped before closing",
 928                                 dev_id);
 929                 return -EBUSY;
 930         }
 931
 932         /* We can't close the device if there are outstanding sessions in use */
 933         if (dev->data->session_pool != NULL) {
 934                 if (!rte_mempool_full(dev->data->session_pool)) {
 935                         CDEV_LOG_ERR("dev_id=%u close failed, session mempool "
 936                                         "has sessions still in use, free "
 937                                         "all sessions before calling close",
 938                                         (unsigned)dev_id);
 939                         return -EBUSY;
 940                 }
 941         }
 942
 943         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_close, -ENOTSUP);
 944         retval = (*dev->dev_ops->dev_close)(dev);
 945
 946         if (retval < 0)
 947                 return retval;
 948
 949         return 0;
 950 }
 951
 952 int
 953 rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
 954                 const struct rte_cryptodev_qp_conf *qp_conf, int socket_id)
 955
 956 {
 957         struct rte_cryptodev *dev;
 958
 959         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 960                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 961                 return -EINVAL;
 962         }
 963
 964         dev = &rte_crypto_devices[dev_id];
 965         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 966                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
 967                 return -EINVAL;
 968         }
 969
 970         if (!qp_conf) {
 971                 CDEV_LOG_ERR("qp_conf cannot be NULL\n");
 972                 return -EINVAL;
 973         }
 974
 975         if ((qp_conf->mp_session && !qp_conf->mp_session_private) ||
 976                         (!qp_conf->mp_session && qp_conf->mp_session_private)) {
 977                 CDEV_LOG_ERR("Invalid mempools\n");
 978                 return -EINVAL;
 979         }
 980
 981         if (dev->data->dev_started) {
 982                 CDEV_LOG_ERR(
 983                     "device %d must be stopped to allow configuration", dev_id);
 984                 return -EBUSY;
 985         }
 986
 987         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_setup, -ENOTSUP);
 988
 989         return (*dev->dev_ops->queue_pair_setup)(dev, queue_pair_id, qp_conf,
 990                         socket_id);
 991 }
 992
 993
 994 int
 995 rte_cryptodev_stats_get(uint8_t dev_id, struct rte_cryptodev_stats *stats)
 996 {
 997         struct rte_cryptodev *dev;
 998
 999         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1000                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1001                 return -ENODEV;
1002         }
1003
1004         if (stats == NULL) {
1005                 CDEV_LOG_ERR("Invalid stats ptr");
1006                 return -EINVAL;
1007         }
1008
1009         dev = &rte_crypto_devices[dev_id];
1010         memset(stats, 0, sizeof(*stats));
1011
1012         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->stats_get, -ENOTSUP);
1013         (*dev->dev_ops->stats_get)(dev, stats);
1014         return 0;
1015 }
1016
1017 void
1018 rte_cryptodev_stats_reset(uint8_t dev_id)
1019 {
1020         struct rte_cryptodev *dev;
1021
1022         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1023                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1024                 return;
1025         }
1026
1027         dev = &rte_crypto_devices[dev_id];
1028
1029         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->stats_reset);
1030         (*dev->dev_ops->stats_reset)(dev);
1031 }
1032
1033
1034 void
1035 rte_cryptodev_info_get(uint8_t dev_id, struct rte_cryptodev_info *dev_info)
1036 {
1037         struct rte_cryptodev *dev;
1038
1039         if (dev_id >= cryptodev_globals.nb_devs) {
1040                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1041                 return;
1042         }
1043
1044         dev = &rte_crypto_devices[dev_id];
1045
1046         memset(dev_info, 0, sizeof(struct rte_cryptodev_info));
1047
1048         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_infos_get);
1049         (*dev->dev_ops->dev_infos_get)(dev, dev_info);
1050
1051         dev_info->driver_name = dev->device->driver->name;
1052         dev_info->device = dev->device;
1053 }
1054
1055
1056 int
1057 rte_cryptodev_callback_register(uint8_t dev_id,
1058                         enum rte_cryptodev_event_type event,
1059                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
1060 {
1061         struct rte_cryptodev *dev;
1062         struct rte_cryptodev_callback *user_cb;
1063
1064         if (!cb_fn)
1065                 return -EINVAL;
1066
1067         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1068                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1069                 return -EINVAL;
1070         }
1071
1072         dev = &rte_crypto_devices[dev_id];
1073         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1074
1075         TAILQ_FOREACH(user_cb, &(dev->link_intr_cbs), next) {
1076                 if (user_cb->cb_fn == cb_fn &&
1077                         user_cb->cb_arg == cb_arg &&
1078                         user_cb->event == event) {
1079                         break;
1080                 }
1081         }
1082
1083         /* create a new callback. */
1084         if (user_cb == NULL) {
1085                 user_cb = rte_zmalloc("INTR_USER_CALLBACK",
1086                                 sizeof(struct rte_cryptodev_callback), 0);
1087                 if (user_cb != NULL) {
1088                         user_cb->cb_fn = cb_fn;
1089                         user_cb->cb_arg = cb_arg;
1090                         user_cb->event = event;
1091                         TAILQ_INSERT_TAIL(&(dev->link_intr_cbs), user_cb, next);
1092                 }
1093         }
1094
1095         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1096         return (user_cb == NULL) ? -ENOMEM : 0;
1097 }
1098
1099 int
1100 rte_cryptodev_callback_unregister(uint8_t dev_id,
1101                         enum rte_cryptodev_event_type event,
1102                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
1103 {
1104         int ret;
1105         struct rte_cryptodev *dev;
1106         struct rte_cryptodev_callback *cb, *next;
1107
1108         if (!cb_fn)
1109                 return -EINVAL;
1110
1111         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1112                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1113                 return -EINVAL;
1114         }
1115
1116         dev = &rte_crypto_devices[dev_id];
1117         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1118
1119         ret = 0;
1120         for (cb = TAILQ_FIRST(&dev->link_intr_cbs); cb != NULL; cb = next) {
1121
1122                 next = TAILQ_NEXT(cb, next);
1123
1124                 if (cb->cb_fn != cb_fn || cb->event != event ||
1125                                 (cb->cb_arg != (void *)-1 &&
1126                                 cb->cb_arg != cb_arg))
1127                         continue;
1128
1129                 /*
1130                  * if this callback is not executing right now,
1131                  * then remove it.
1132                  */
1133                 if (cb->active == 0) {
1134                         TAILQ_REMOVE(&(dev->link_intr_cbs), cb, next);
1135                         rte_free(cb);
1136                 } else {
1137                         ret = -EAGAIN;
1138                 }
1139         }
1140
1141         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1142         return ret;
1143 }
1144
1145 void
1146 rte_cryptodev_pmd_callback_process(struct rte_cryptodev *dev,
1147         enum rte_cryptodev_event_type event)
1148 {
1149         struct rte_cryptodev_callback *cb_lst;
1150         struct rte_cryptodev_callback dev_cb;
1151
1152         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1153         TAILQ_FOREACH(cb_lst, &(dev->link_intr_cbs), next) {
1154                 if (cb_lst->cb_fn == NULL || cb_lst->event != event)
1155                         continue;
1156                 dev_cb = *cb_lst;
1157                 cb_lst->active = 1;
1158                 rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1159                 dev_cb.cb_fn(dev->data->dev_id, dev_cb.event,
1160                                                 dev_cb.cb_arg);
1161                 rte_spinlock_lock(&rte_cryptodev_cb_lock);
1162                 cb_lst->active = 0;
1163         }
1164         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1165 }
1166
1167
1168 int
1169 rte_cryptodev_sym_session_init(uint8_t dev_id,
1170                 struct rte_cryptodev_sym_session *sess,
1171                 struct rte_crypto_sym_xform *xforms,
1172                 struct rte_mempool *mp)
1173 {
1174         struct rte_cryptodev *dev;
1175         uint8_t index;
1176         int ret;
1177
1178         dev = rte_cryptodev_pmd_get_dev(dev_id);
1179
1180         if (sess == NULL || xforms == NULL || dev == NULL)
1181                 return -EINVAL;
1182
1183         index = dev->driver_id;
1184
1185         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->sym_session_configure, -ENOTSUP);
1186
1187         if (sess->sess_private_data[index] == NULL) {
1188                 ret = dev->dev_ops->sym_session_configure(dev, xforms,
1189                                                         sess, mp);
1190                 if (ret < 0) {
1191                         CDEV_LOG_ERR(
1192                                 "dev_id %d failed to configure session details",
1193                                 dev_id);
1194                         return ret;
1195                 }
1196         }
1197
1198         return 0;
1199 }
1200
1201 int __rte_experimental
1202 rte_cryptodev_asym_session_init(uint8_t dev_id,
1203                 struct rte_cryptodev_asym_session *sess,
1204                 struct rte_crypto_asym_xform *xforms,
1205                 struct rte_mempool *mp)
1206 {
1207         struct rte_cryptodev *dev;
1208         uint8_t index;
1209         int ret;
1210
1211         dev = rte_cryptodev_pmd_get_dev(dev_id);
1212
1213         if (sess == NULL || xforms == NULL || dev == NULL)
1214                 return -EINVAL;
1215
1216         index = dev->driver_id;
1217
1218         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->asym_session_configure,
1219                                 -ENOTSUP);
1220
1221         if (sess->sess_private_data[index] == NULL) {
1222                 ret = dev->dev_ops->asym_session_configure(dev,
1223                                                         xforms,
1224                                                         sess, mp);
1225                 if (ret < 0) {
1226                         CDEV_LOG_ERR(
1227                                 "dev_id %d failed to configure session details",
1228                                 dev_id);
1229                         return ret;
1230                 }
1231         }
1232
1233         return 0;
1234 }
1235
1236 struct rte_mempool * __rte_experimental
1237 rte_cryptodev_sym_session_pool_create(const char *name, uint32_t nb_elts,
1238         uint32_t elt_size, uint32_t cache_size, uint16_t user_data_size,
1239         int socket_id)
1240 {
1241         struct rte_mempool *mp;
1242         struct rte_cryptodev_sym_session_pool_private_data *pool_priv;
1243         uint32_t obj_sz;
1244
1245         obj_sz = rte_cryptodev_sym_get_header_session_size() + user_data_size;
1246         if (obj_sz > elt_size)
1247                 CDEV_LOG_INFO("elt_size %u is expanded to %u\n", elt_size,
1248                                 obj_sz);
1249         else
1250                 obj_sz = elt_size;
1251
1252         mp = rte_mempool_create(name, nb_elts, obj_sz, cache_size,
1253                         (uint32_t)(sizeof(*pool_priv)),
1254                         NULL, NULL, NULL, NULL,
1255                         socket_id, 0);
1256         if (mp == NULL) {
1257                 CDEV_LOG_ERR("%s(name=%s) failed, rte_errno=%d\n",
1258                         __func__, name, rte_errno);
1259                 return NULL;
1260         }
1261
1262         pool_priv = rte_mempool_get_priv(mp);
1263         if (!pool_priv) {
1264                 CDEV_LOG_ERR("%s(name=%s) failed to get private data\n",
1265                         __func__, name);
1266                 rte_mempool_free(mp);
1267                 return NULL;
1268         }
1269
1270         pool_priv->nb_drivers = nb_drivers;
1271         pool_priv->user_data_sz = user_data_size;
1272
1273         return mp;
1274 }
1275
1276 struct rte_cryptodev_sym_session *
1277 rte_cryptodev_sym_session_create(struct rte_mempool *mp)
1278 {
1279         struct rte_cryptodev_sym_session *sess;
1280
1281         /* Allocate a session structure from the session pool */
1282         if (rte_mempool_get(mp, (void **)&sess)) {
1283                 CDEV_LOG_ERR("couldn't get object from session mempool");
1284                 return NULL;
1285         }
1286
1287         /* Clear device session pointer.
1288          * Include the flag indicating presence of user data
1289          */
1290         memset(sess, 0, (sizeof(void *) * nb_drivers) + sizeof(uint8_t));
1291
1292         return sess;
1293 }
1294
1295 struct rte_cryptodev_asym_session * __rte_experimental
1296 rte_cryptodev_asym_session_create(struct rte_mempool *mp)
1297 {
1298         struct rte_cryptodev_asym_session *sess;
1299
1300         /* Allocate a session structure from the session pool */
1301         if (rte_mempool_get(mp, (void **)&sess)) {
1302                 CDEV_LOG_ERR("couldn't get object from session mempool");
1303                 return NULL;
1304         }
1305
1306         /* Clear device session pointer.
1307          * Include the flag indicating presence of private data
1308          */
1309         memset(sess, 0, (sizeof(void *) * nb_drivers) + sizeof(uint8_t));
1310
1311         return sess;
1312 }
1313
1314 int
1315 rte_cryptodev_sym_session_clear(uint8_t dev_id,
1316                 struct rte_cryptodev_sym_session *sess)
1317 {
1318         struct rte_cryptodev *dev;
1319
1320         dev = rte_cryptodev_pmd_get_dev(dev_id);
1321
1322         if (dev == NULL || sess == NULL)
1323                 return -EINVAL;
1324
1325         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->sym_session_clear, -ENOTSUP);
1326
1327         dev->dev_ops->sym_session_clear(dev, sess);
1328
1329         return 0;
1330 }
1331
1332 int __rte_experimental
1333 rte_cryptodev_asym_session_clear(uint8_t dev_id,
1334                 struct rte_cryptodev_asym_session *sess)
1335 {
1336         struct rte_cryptodev *dev;
1337
1338         dev = rte_cryptodev_pmd_get_dev(dev_id);
1339
1340         if (dev == NULL || sess == NULL)
1341                 return -EINVAL;
1342
1343         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->asym_session_clear, -ENOTSUP);
1344
1345         dev->dev_ops->asym_session_clear(dev, sess);
1346
1347         return 0;
1348 }
1349
1350 int
1351 rte_cryptodev_sym_session_free(struct rte_cryptodev_sym_session *sess)
1352 {
1353         uint8_t i;
1354         void *sess_priv;
1355         struct rte_mempool *sess_mp;
1356
1357         if (sess == NULL)
1358                 return -EINVAL;
1359
1360         /* Check that all device private data has been freed */
1361         for (i = 0; i < nb_drivers; i++) {
1362                 sess_priv = get_sym_session_private_data(sess, i);
1363                 if (sess_priv != NULL)
1364                         return -EBUSY;
1365         }
1366
1367         /* Return session to mempool */
1368         sess_mp = rte_mempool_from_obj(sess);
1369         rte_mempool_put(sess_mp, sess);
1370
1371         return 0;
1372 }
1373
1374 int __rte_experimental
1375 rte_cryptodev_asym_session_free(struct rte_cryptodev_asym_session *sess)
1376 {
1377         uint8_t i;
1378         void *sess_priv;
1379         struct rte_mempool *sess_mp;
1380
1381         if (sess == NULL)
1382                 return -EINVAL;
1383
1384         /* Check that all device private data has been freed */
1385         for (i = 0; i < nb_drivers; i++) {
1386                 sess_priv = get_asym_session_private_data(sess, i);
1387                 if (sess_priv != NULL)
1388                         return -EBUSY;
1389         }
1390
1391         /* Return session to mempool */
1392         sess_mp = rte_mempool_from_obj(sess);
1393         rte_mempool_put(sess_mp, sess);
1394
1395         return 0;
1396 }
1397
1398
1399 unsigned int
1400 rte_cryptodev_sym_get_header_session_size(void)
1401 {
1402         /*
1403          * Header contains pointers to the private data
1404          * of all registered drivers, and a flag which
1405          * indicates presence of user data
1406          */
1407         return ((sizeof(void *) * nb_drivers) + sizeof(uint8_t));
1408 }
1409
1410 unsigned int __rte_experimental
1411 rte_cryptodev_asym_get_header_session_size(void)
1412 {
1413         /*
1414          * Header contains pointers to the private data
1415          * of all registered drivers, and a flag which
1416          * indicates presence of private data
1417          */
1418         return ((sizeof(void *) * nb_drivers) + sizeof(uint8_t));
1419 }
1420
1421 unsigned int
1422 rte_cryptodev_sym_get_private_session_size(uint8_t dev_id)
1423 {
1424         struct rte_cryptodev *dev;
1425         unsigned int header_size = sizeof(void *) * nb_drivers;
1426         unsigned int priv_sess_size;
1427
1428         if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
1429                 return 0;
1430
1431         dev = rte_cryptodev_pmd_get_dev(dev_id);
1432
1433         if (*dev->dev_ops->sym_session_get_size == NULL)
1434                 return 0;
1435
1436         priv_sess_size = (*dev->dev_ops->sym_session_get_size)(dev);
1437
1438         /*
1439          * If size is less than session header size,
1440          * return the latter, as this guarantees that
1441          * sessionless operations will work
1442          */
1443         if (priv_sess_size < header_size)
1444                 return header_size;
1445
1446         return priv_sess_size;
1447
1448 }
1449
1450 unsigned int __rte_experimental
1451 rte_cryptodev_asym_get_private_session_size(uint8_t dev_id)
1452 {
1453         struct rte_cryptodev *dev;
1454         unsigned int header_size = sizeof(void *) * nb_drivers;
1455         unsigned int priv_sess_size;
1456
1457         if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
1458                 return 0;
1459
1460         dev = rte_cryptodev_pmd_get_dev(dev_id);
1461
1462         if (*dev->dev_ops->asym_session_get_size == NULL)
1463                 return 0;
1464
1465         priv_sess_size = (*dev->dev_ops->asym_session_get_size)(dev);
1466         if (priv_sess_size < header_size)
1467                 return header_size;
1468
1469         return priv_sess_size;
1470
1471 }
1472
1473 int __rte_experimental
1474 rte_cryptodev_sym_session_set_user_data(
1475                                         struct rte_cryptodev_sym_session *sess,
1476                                         void *data,
1477                                         uint16_t size)
1478 {
1479         uint16_t off_set = sizeof(void *) * nb_drivers;
1480         uint8_t *user_data_present = (uint8_t *)sess + off_set;
1481
1482         if (sess == NULL)
1483                 return -EINVAL;
1484
1485         *user_data_present = 1;
1486         off_set += sizeof(uint8_t);
1487         rte_memcpy((uint8_t *)sess + off_set, data, size);
1488         return 0;
1489 }
1490
1491 void * __rte_experimental
1492 rte_cryptodev_sym_session_get_user_data(
1493                                         struct rte_cryptodev_sym_session *sess)
1494 {
1495         uint16_t off_set = sizeof(void *) * nb_drivers;
1496         uint8_t *user_data_present = (uint8_t *)sess + off_set;
1497
1498         if (sess == NULL || !*user_data_present)
1499                 return NULL;
1500
1501         off_set += sizeof(uint8_t);
1502         return (uint8_t *)sess + off_set;
1503 }
1504
1505 /** Initialise rte_crypto_op mempool element */
1506 static void
1507 rte_crypto_op_init(struct rte_mempool *mempool,
1508                 void *opaque_arg,
1509                 void *_op_data,
1510                 __rte_unused unsigned i)
1511 {
1512         struct rte_crypto_op *op = _op_data;
1513         enum rte_crypto_op_type type = *(enum rte_crypto_op_type *)opaque_arg;
1514
1515         memset(_op_data, 0, mempool->elt_size);
1516
1517         __rte_crypto_op_reset(op, type);
1518
1519         op->phys_addr = rte_mem_virt2iova(_op_data);
1520         op->mempool = mempool;
1521 }
1522
1523
1524 struct rte_mempool *
1525 rte_crypto_op_pool_create(const char *name, enum rte_crypto_op_type type,
1526                 unsigned nb_elts, unsigned cache_size, uint16_t priv_size,
1527                 int socket_id)
1528 {
1529         struct rte_crypto_op_pool_private *priv;
1530
1531         unsigned elt_size = sizeof(struct rte_crypto_op) +
1532                         priv_size;
1533
1534         if (type == RTE_CRYPTO_OP_TYPE_SYMMETRIC) {
1535                 elt_size += sizeof(struct rte_crypto_sym_op);
1536         } else if (type == RTE_CRYPTO_OP_TYPE_ASYMMETRIC) {
1537                 elt_size += sizeof(struct rte_crypto_asym_op);
1538         } else if (type == RTE_CRYPTO_OP_TYPE_UNDEFINED) {
1539                 elt_size += RTE_MAX(sizeof(struct rte_crypto_sym_op),
1540                                     sizeof(struct rte_crypto_asym_op));
1541         } else {
1542                 CDEV_LOG_ERR("Invalid op_type\n");
1543                 return NULL;
1544         }
1545
1546         /* lookup mempool in case already allocated */
1547         struct rte_mempool *mp = rte_mempool_lookup(name);
1548
1549         if (mp != NULL) {
1550                 priv = (struct rte_crypto_op_pool_private *)
1551                                 rte_mempool_get_priv(mp);
1552
1553                 if (mp->elt_size != elt_size ||
1554                                 mp->cache_size < cache_size ||
1555                                 mp->size < nb_elts ||
1556                                 priv->priv_size <  priv_size) {
1557                         mp = NULL;
1558                         CDEV_LOG_ERR("Mempool %s already exists but with "
1559                                         "incompatible parameters", name);
1560                         return NULL;
1561                 }
1562                 return mp;
1563         }
1564
1565         mp = rte_mempool_create(
1566                         name,
1567                         nb_elts,
1568                         elt_size,
1569                         cache_size,
1570                         sizeof(struct rte_crypto_op_pool_private),
1571                         NULL,
1572                         NULL,
1573                         rte_crypto_op_init,
1574                         &type,
1575                         socket_id,
1576                         0);
1577
1578         if (mp == NULL) {
1579                 CDEV_LOG_ERR("Failed to create mempool %s", name);
1580                 return NULL;
1581         }
1582
1583         priv = (struct rte_crypto_op_pool_private *)
1584                         rte_mempool_get_priv(mp);
1585
1586         priv->priv_size = priv_size;
1587         priv->type = type;
1588
1589         return mp;
1590 }
1591
1592 int
1593 rte_cryptodev_pmd_create_dev_name(char *name, const char *dev_name_prefix)
1594 {
1595         struct rte_cryptodev *dev = NULL;
1596         uint32_t i = 0;
1597
1598         if (name == NULL)
1599                 return -EINVAL;
1600
1601         for (i = 0; i < RTE_CRYPTO_MAX_DEVS; i++) {
1602                 int ret = snprintf(name, RTE_CRYPTODEV_NAME_MAX_LEN,
1603                                 "%s_%u", dev_name_prefix, i);
1604
1605                 if (ret < 0)
1606                         return ret;
1607
1608                 dev = rte_cryptodev_pmd_get_named_dev(name);
1609                 if (!dev)
1610                         return 0;
1611         }
1612
1613         return -1;
1614 }
1615
1616 TAILQ_HEAD(cryptodev_driver_list, cryptodev_driver);
1617
1618 static struct cryptodev_driver_list cryptodev_driver_list =
1619         TAILQ_HEAD_INITIALIZER(cryptodev_driver_list);
1620
1621 int
1622 rte_cryptodev_driver_id_get(const char *name)
1623 {
1624         struct cryptodev_driver *driver;
1625         const char *driver_name;
1626
1627         if (name == NULL) {
1628                 RTE_LOG(DEBUG, CRYPTODEV, "name pointer NULL");
1629                 return -1;
1630         }
1631
1632         TAILQ_FOREACH(driver, &cryptodev_driver_list, next) {
1633                 driver_name = driver->driver->name;
1634                 if (strncmp(driver_name, name, strlen(driver_name)) == 0)
1635                         return driver->id;
1636         }
1637         return -1;
1638 }
1639
1640 const char *
1641 rte_cryptodev_name_get(uint8_t dev_id)
1642 {
1643         struct rte_cryptodev *dev = rte_cryptodev_pmd_get_dev(dev_id);
1644
1645         if (dev == NULL)
1646                 return NULL;
1647
1648         return dev->data->name;
1649 }
1650
1651 const char *
1652 rte_cryptodev_driver_name_get(uint8_t driver_id)
1653 {
1654         struct cryptodev_driver *driver;
1655
1656         TAILQ_FOREACH(driver, &cryptodev_driver_list, next)
1657                 if (driver->id == driver_id)
1658                         return driver->driver->name;
1659         return NULL;
1660 }
1661
1662 uint8_t
1663 rte_cryptodev_allocate_driver(struct cryptodev_driver *crypto_drv,
1664                 const struct rte_driver *drv)
1665 {
1666         crypto_drv->driver = drv;
1667         crypto_drv->id = nb_drivers;
1668
1669         TAILQ_INSERT_TAIL(&cryptodev_driver_list, crypto_drv, next);
1670
1671         return nb_drivers++;
1672 }