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
 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 *
 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
 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
 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         case RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_EXP:
 490                 return "RSA_PRIV_OP_KEY_EXP";
 491         case RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_QT:
 492                 return "RSA_PRIV_OP_KEY_QT";
 493         default:
 494                 return NULL;
 495         }
 496 }
 497
 498 struct rte_cryptodev *
 499 rte_cryptodev_pmd_get_dev(uint8_t dev_id)
 500 {
 501         return &cryptodev_globals.devs[dev_id];
 502 }
 503
 504 struct rte_cryptodev *
 505 rte_cryptodev_pmd_get_named_dev(const char *name)
 506 {
 507         struct rte_cryptodev *dev;
 508         unsigned int i;
 509
 510         if (name == NULL)
 511                 return NULL;
 512
 513         for (i = 0; i < cryptodev_globals.max_devs; i++) {
 514                 dev = &cryptodev_globals.devs[i];
 515
 516                 if ((dev->attached == RTE_CRYPTODEV_ATTACHED) &&
 517                                 (strcmp(dev->data->name, name) == 0))
 518                         return dev;
 519         }
 520
 521         return NULL;
 522 }
 523
 524 unsigned int
 525 rte_cryptodev_pmd_is_valid_dev(uint8_t dev_id)
 526 {
 527         struct rte_cryptodev *dev = NULL;
 528
 529         if (dev_id >= cryptodev_globals.nb_devs)
 530                 return 0;
 531
 532         dev = rte_cryptodev_pmd_get_dev(dev_id);
 533         if (dev->attached != RTE_CRYPTODEV_ATTACHED)
 534                 return 0;
 535         else
 536                 return 1;
 537 }
 538
 539
 540 int
 541 rte_cryptodev_get_dev_id(const char *name)
 542 {
 543         unsigned i;
 544
 545         if (name == NULL)
 546                 return -1;
 547
 548         for (i = 0; i < cryptodev_globals.nb_devs; i++)
 549                 if ((strcmp(cryptodev_globals.devs[i].data->name, name)
 550                                 == 0) &&
 551                                 (cryptodev_globals.devs[i].attached ==
 552                                                 RTE_CRYPTODEV_ATTACHED))
 553                         return i;
 554
 555         return -1;
 556 }
 557
 558 uint8_t
 559 rte_cryptodev_count(void)
 560 {
 561         return cryptodev_globals.nb_devs;
 562 }
 563
 564 uint8_t
 565 rte_cryptodev_device_count_by_driver(uint8_t driver_id)
 566 {
 567         uint8_t i, dev_count = 0;
 568
 569         for (i = 0; i < cryptodev_globals.max_devs; i++)
 570                 if (cryptodev_globals.devs[i].driver_id == driver_id &&
 571                         cryptodev_globals.devs[i].attached ==
 572                                         RTE_CRYPTODEV_ATTACHED)
 573                         dev_count++;
 574
 575         return dev_count;
 576 }
 577
 578 uint8_t
 579 rte_cryptodev_devices_get(const char *driver_name, uint8_t *devices,
 580         uint8_t nb_devices)
 581 {
 582         uint8_t i, count = 0;
 583         struct rte_cryptodev *devs = cryptodev_globals.devs;
 584         uint8_t max_devs = cryptodev_globals.max_devs;
 585
 586         for (i = 0; i < max_devs && count < nb_devices; i++) {
 587
 588                 if (devs[i].attached == RTE_CRYPTODEV_ATTACHED) {
 589                         int cmp;
 590
 591                         cmp = strncmp(devs[i].device->driver->name,
 592                                         driver_name,
 593                                         strlen(driver_name) + 1);
 594
 595                         if (cmp == 0)
 596                                 devices[count++] = devs[i].data->dev_id;
 597                 }
 598         }
 599
 600         return count;
 601 }
 602
 603 void *
 604 rte_cryptodev_get_sec_ctx(uint8_t dev_id)
 605 {
 606         if (rte_crypto_devices[dev_id].feature_flags &
 607                         RTE_CRYPTODEV_FF_SECURITY)
 608                 return rte_crypto_devices[dev_id].security_ctx;
 609
 610         return NULL;
 611 }
 612
 613 int
 614 rte_cryptodev_socket_id(uint8_t dev_id)
 615 {
 616         struct rte_cryptodev *dev;
 617
 618         if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
 619                 return -1;
 620
 621         dev = rte_cryptodev_pmd_get_dev(dev_id);
 622
 623         return dev->data->socket_id;
 624 }
 625
 626 static inline int
 627 rte_cryptodev_data_alloc(uint8_t dev_id, struct rte_cryptodev_data **data,
 628                 int socket_id)
 629 {
 630         char mz_name[RTE_MEMZONE_NAMESIZE];
 631         const struct rte_memzone *mz;
 632         int n;
 633
 634         /* generate memzone name */
 635         n = snprintf(mz_name, sizeof(mz_name), "rte_cryptodev_data_%u", dev_id);
 636         if (n >= (int)sizeof(mz_name))
 637                 return -EINVAL;
 638
 639         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 640                 mz = rte_memzone_reserve(mz_name,
 641                                 sizeof(struct rte_cryptodev_data),
 642                                 socket_id, 0);
 643         } else
 644                 mz = rte_memzone_lookup(mz_name);
 645
 646         if (mz == NULL)
 647                 return -ENOMEM;
 648
 649         *data = mz->addr;
 650         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 651                 memset(*data, 0, sizeof(struct rte_cryptodev_data));
 652
 653         return 0;
 654 }
 655
 656 static inline int
 657 rte_cryptodev_data_free(uint8_t dev_id, struct rte_cryptodev_data **data)
 658 {
 659         char mz_name[RTE_MEMZONE_NAMESIZE];
 660         const struct rte_memzone *mz;
 661         int n;
 662
 663         /* generate memzone name */
 664         n = snprintf(mz_name, sizeof(mz_name), "rte_cryptodev_data_%u", dev_id);
 665         if (n >= (int)sizeof(mz_name))
 666                 return -EINVAL;
 667
 668         mz = rte_memzone_lookup(mz_name);
 669         if (mz == NULL)
 670                 return -ENOMEM;
 671
 672         RTE_ASSERT(*data == mz->addr);
 673         *data = NULL;
 674
 675         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 676                 return rte_memzone_free(mz);
 677
 678         return 0;
 679 }
 680
 681 static uint8_t
 682 rte_cryptodev_find_free_device_index(void)
 683 {
 684         uint8_t dev_id;
 685
 686         for (dev_id = 0; dev_id < RTE_CRYPTO_MAX_DEVS; dev_id++) {
 687                 if (rte_crypto_devices[dev_id].attached ==
 688                                 RTE_CRYPTODEV_DETACHED)
 689                         return dev_id;
 690         }
 691         return RTE_CRYPTO_MAX_DEVS;
 692 }
 693
 694 struct rte_cryptodev *
 695 rte_cryptodev_pmd_allocate(const char *name, int socket_id)
 696 {
 697         struct rte_cryptodev *cryptodev;
 698         uint8_t dev_id;
 699
 700         if (rte_cryptodev_pmd_get_named_dev(name) != NULL) {
 701                 CDEV_LOG_ERR("Crypto device with name %s already "
 702                                 "allocated!", name);
 703                 return NULL;
 704         }
 705
 706         dev_id = rte_cryptodev_find_free_device_index();
 707         if (dev_id == RTE_CRYPTO_MAX_DEVS) {
 708                 CDEV_LOG_ERR("Reached maximum number of crypto devices");
 709                 return NULL;
 710         }
 711
 712         cryptodev = rte_cryptodev_pmd_get_dev(dev_id);
 713
 714         if (cryptodev->data == NULL) {
 715                 struct rte_cryptodev_data **cryptodev_data =
 716                                 &cryptodev_globals.data[dev_id];
 717
 718                 int retval = rte_cryptodev_data_alloc(dev_id, cryptodev_data,
 719                                 socket_id);
 720
 721                 if (retval < 0 || *cryptodev_data == NULL)
 722                         return NULL;
 723
 724                 cryptodev->data = *cryptodev_data;
 725
 726                 strlcpy(cryptodev->data->name, name,
 727                         RTE_CRYPTODEV_NAME_MAX_LEN);
 728
 729                 cryptodev->data->dev_id = dev_id;
 730                 cryptodev->data->socket_id = socket_id;
 731                 cryptodev->data->dev_started = 0;
 732
 733                 /* init user callbacks */
 734                 TAILQ_INIT(&(cryptodev->link_intr_cbs));
 735
 736                 cryptodev->attached = RTE_CRYPTODEV_ATTACHED;
 737
 738                 cryptodev_globals.nb_devs++;
 739         }
 740
 741         return cryptodev;
 742 }
 743
 744 int
 745 rte_cryptodev_pmd_release_device(struct rte_cryptodev *cryptodev)
 746 {
 747         int ret;
 748         uint8_t dev_id;
 749
 750         if (cryptodev == NULL)
 751                 return -EINVAL;
 752
 753         dev_id = cryptodev->data->dev_id;
 754
 755         /* Close device only if device operations have been set */
 756         if (cryptodev->dev_ops) {
 757                 ret = rte_cryptodev_close(dev_id);
 758                 if (ret < 0)
 759                         return ret;
 760         }
 761
 762         ret = rte_cryptodev_data_free(dev_id, &cryptodev_globals.data[dev_id]);
 763         if (ret < 0)
 764                 return ret;
 765
 766         cryptodev->attached = RTE_CRYPTODEV_DETACHED;
 767         cryptodev_globals.nb_devs--;
 768         return 0;
 769 }
 770
 771 uint16_t
 772 rte_cryptodev_queue_pair_count(uint8_t dev_id)
 773 {
 774         struct rte_cryptodev *dev;
 775
 776         dev = &rte_crypto_devices[dev_id];
 777         return dev->data->nb_queue_pairs;
 778 }
 779
 780 static int
 781 rte_cryptodev_queue_pairs_config(struct rte_cryptodev *dev, uint16_t nb_qpairs,
 782                 int socket_id)
 783 {
 784         struct rte_cryptodev_info dev_info;
 785         void **qp;
 786         unsigned i;
 787
 788         if ((dev == NULL) || (nb_qpairs < 1)) {
 789                 CDEV_LOG_ERR("invalid param: dev %p, nb_queues %u",
 790                                                         dev, nb_qpairs);
 791                 return -EINVAL;
 792         }
 793
 794         CDEV_LOG_DEBUG("Setup %d queues pairs on device %u",
 795                         nb_qpairs, dev->data->dev_id);
 796
 797         memset(&dev_info, 0, sizeof(struct rte_cryptodev_info));
 798
 799         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP);
 800         (*dev->dev_ops->dev_infos_get)(dev, &dev_info);
 801
 802         if (nb_qpairs > (dev_info.max_nb_queue_pairs)) {
 803                 CDEV_LOG_ERR("Invalid num queue_pairs (%u) for dev %u",
 804                                 nb_qpairs, dev->data->dev_id);
 805             return -EINVAL;
 806         }
 807
 808         if (dev->data->queue_pairs == NULL) { /* first time configuration */
 809                 dev->data->queue_pairs = rte_zmalloc_socket(
 810                                 "cryptodev->queue_pairs",
 811                                 sizeof(dev->data->queue_pairs[0]) * nb_qpairs,
 812                                 RTE_CACHE_LINE_SIZE, socket_id);
 813
 814                 if (dev->data->queue_pairs == NULL) {
 815                         dev->data->nb_queue_pairs = 0;
 816                         CDEV_LOG_ERR("failed to get memory for qp meta data, "
 817                                                         "nb_queues %u",
 818                                                         nb_qpairs);
 819                         return -(ENOMEM);
 820                 }
 821         } else { /* re-configure */
 822                 int ret;
 823                 uint16_t old_nb_queues = dev->data->nb_queue_pairs;
 824
 825                 qp = dev->data->queue_pairs;
 826
 827                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_release,
 828                                 -ENOTSUP);
 829
 830                 for (i = nb_qpairs; i < old_nb_queues; i++) {
 831                         ret = (*dev->dev_ops->queue_pair_release)(dev, i);
 832                         if (ret < 0)
 833                                 return ret;
 834                 }
 835
 836                 qp = rte_realloc(qp, sizeof(qp[0]) * nb_qpairs,
 837                                 RTE_CACHE_LINE_SIZE);
 838                 if (qp == NULL) {
 839                         CDEV_LOG_ERR("failed to realloc qp meta data,"
 840                                                 " nb_queues %u", nb_qpairs);
 841                         return -(ENOMEM);
 842                 }
 843
 844                 if (nb_qpairs > old_nb_queues) {
 845                         uint16_t new_qs = nb_qpairs - old_nb_queues;
 846
 847                         memset(qp + old_nb_queues, 0,
 848                                 sizeof(qp[0]) * new_qs);
 849                 }
 850
 851                 dev->data->queue_pairs = qp;
 852
 853         }
 854         dev->data->nb_queue_pairs = nb_qpairs;
 855         return 0;
 856 }
 857
 858 int
 859 rte_cryptodev_configure(uint8_t dev_id, struct rte_cryptodev_config *config)
 860 {
 861         struct rte_cryptodev *dev;
 862         int diag;
 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         if (dev->data->dev_started) {
 872                 CDEV_LOG_ERR(
 873                     "device %d must be stopped to allow configuration", dev_id);
 874                 return -EBUSY;
 875         }
 876
 877         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_configure, -ENOTSUP);
 878
 879         /* Setup new number of queue pairs and reconfigure device. */
 880         diag = rte_cryptodev_queue_pairs_config(dev, config->nb_queue_pairs,
 881                         config->socket_id);
 882         if (diag != 0) {
 883                 CDEV_LOG_ERR("dev%d rte_crypto_dev_queue_pairs_config = %d",
 884                                 dev_id, diag);
 885                 return diag;
 886         }
 887
 888         return (*dev->dev_ops->dev_configure)(dev, config);
 889 }
 890
 891
 892 int
 893 rte_cryptodev_start(uint8_t dev_id)
 894 {
 895         struct rte_cryptodev *dev;
 896         int diag;
 897
 898         CDEV_LOG_DEBUG("Start dev_id=%" PRIu8, dev_id);
 899
 900         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 901                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 902                 return -EINVAL;
 903         }
 904
 905         dev = &rte_crypto_devices[dev_id];
 906
 907         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_start, -ENOTSUP);
 908
 909         if (dev->data->dev_started != 0) {
 910                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already started",
 911                         dev_id);
 912                 return 0;
 913         }
 914
 915         diag = (*dev->dev_ops->dev_start)(dev);
 916         if (diag == 0)
 917                 dev->data->dev_started = 1;
 918         else
 919                 return diag;
 920
 921         return 0;
 922 }
 923
 924 void
 925 rte_cryptodev_stop(uint8_t dev_id)
 926 {
 927         struct rte_cryptodev *dev;
 928
 929         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 930                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 931                 return;
 932         }
 933
 934         dev = &rte_crypto_devices[dev_id];
 935
 936         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_stop);
 937
 938         if (dev->data->dev_started == 0) {
 939                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already stopped",
 940                         dev_id);
 941                 return;
 942         }
 943
 944         (*dev->dev_ops->dev_stop)(dev);
 945         dev->data->dev_started = 0;
 946 }
 947
 948 int
 949 rte_cryptodev_close(uint8_t dev_id)
 950 {
 951         struct rte_cryptodev *dev;
 952         int retval;
 953
 954         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 955                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 956                 return -1;
 957         }
 958
 959         dev = &rte_crypto_devices[dev_id];
 960
 961         /* Device must be stopped before it can be closed */
 962         if (dev->data->dev_started == 1) {
 963                 CDEV_LOG_ERR("Device %u must be stopped before closing",
 964                                 dev_id);
 965                 return -EBUSY;
 966         }
 967
 968         /* We can't close the device if there are outstanding sessions in use */
 969         if (dev->data->session_pool != NULL) {
 970                 if (!rte_mempool_full(dev->data->session_pool)) {
 971                         CDEV_LOG_ERR("dev_id=%u close failed, session mempool "
 972                                         "has sessions still in use, free "
 973                                         "all sessions before calling close",
 974                                         (unsigned)dev_id);
 975                         return -EBUSY;
 976                 }
 977         }
 978
 979         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_close, -ENOTSUP);
 980         retval = (*dev->dev_ops->dev_close)(dev);
 981
 982         if (retval < 0)
 983                 return retval;
 984
 985         return 0;
 986 }
 987
 988 int
 989 rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
 990                 const struct rte_cryptodev_qp_conf *qp_conf, int socket_id)
 991
 992 {
 993         struct rte_cryptodev *dev;
 994
 995         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 996                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 997                 return -EINVAL;
 998         }
 999
1000         dev = &rte_crypto_devices[dev_id];
1001         if (queue_pair_id >= dev->data->nb_queue_pairs) {
1002                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
1003                 return -EINVAL;
1004         }
1005
1006         if (!qp_conf) {
1007                 CDEV_LOG_ERR("qp_conf cannot be NULL\n");
1008                 return -EINVAL;
1009         }
1010
1011         if ((qp_conf->mp_session && !qp_conf->mp_session_private) ||
1012                         (!qp_conf->mp_session && qp_conf->mp_session_private)) {
1013                 CDEV_LOG_ERR("Invalid mempools\n");
1014                 return -EINVAL;
1015         }
1016
1017         if (qp_conf->mp_session) {
1018                 struct rte_cryptodev_sym_session_pool_private_data *pool_priv;
1019                 uint32_t obj_size = qp_conf->mp_session->elt_size;
1020                 uint32_t obj_priv_size = qp_conf->mp_session_private->elt_size;
1021                 struct rte_cryptodev_sym_session s = {0};
1022
1023                 pool_priv = rte_mempool_get_priv(qp_conf->mp_session);
1024                 if (!pool_priv || qp_conf->mp_session->private_data_size <
1025                                 sizeof(*pool_priv)) {
1026                         CDEV_LOG_ERR("Invalid mempool\n");
1027                         return -EINVAL;
1028                 }
1029
1030                 s.nb_drivers = pool_priv->nb_drivers;
1031                 s.user_data_sz = pool_priv->user_data_sz;
1032
1033                 if ((rte_cryptodev_sym_get_existing_header_session_size(&s) >
1034                         obj_size) || (s.nb_drivers <= dev->driver_id) ||
1035                         rte_cryptodev_sym_get_private_session_size(dev_id) >
1036                                 obj_priv_size) {
1037                         CDEV_LOG_ERR("Invalid mempool\n");
1038                         return -EINVAL;
1039                 }
1040         }
1041
1042         if (dev->data->dev_started) {
1043                 CDEV_LOG_ERR(
1044                     "device %d must be stopped to allow configuration", dev_id);
1045                 return -EBUSY;
1046         }
1047
1048         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_setup, -ENOTSUP);
1049
1050         return (*dev->dev_ops->queue_pair_setup)(dev, queue_pair_id, qp_conf,
1051                         socket_id);
1052 }
1053
1054
1055 int
1056 rte_cryptodev_stats_get(uint8_t dev_id, struct rte_cryptodev_stats *stats)
1057 {
1058         struct rte_cryptodev *dev;
1059
1060         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1061                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1062                 return -ENODEV;
1063         }
1064
1065         if (stats == NULL) {
1066                 CDEV_LOG_ERR("Invalid stats ptr");
1067                 return -EINVAL;
1068         }
1069
1070         dev = &rte_crypto_devices[dev_id];
1071         memset(stats, 0, sizeof(*stats));
1072
1073         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->stats_get, -ENOTSUP);
1074         (*dev->dev_ops->stats_get)(dev, stats);
1075         return 0;
1076 }
1077
1078 void
1079 rte_cryptodev_stats_reset(uint8_t dev_id)
1080 {
1081         struct rte_cryptodev *dev;
1082
1083         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1084                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1085                 return;
1086         }
1087
1088         dev = &rte_crypto_devices[dev_id];
1089
1090         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->stats_reset);
1091         (*dev->dev_ops->stats_reset)(dev);
1092 }
1093
1094
1095 void
1096 rte_cryptodev_info_get(uint8_t dev_id, struct rte_cryptodev_info *dev_info)
1097 {
1098         struct rte_cryptodev *dev;
1099
1100         if (dev_id >= cryptodev_globals.nb_devs) {
1101                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1102                 return;
1103         }
1104
1105         dev = &rte_crypto_devices[dev_id];
1106
1107         memset(dev_info, 0, sizeof(struct rte_cryptodev_info));
1108
1109         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_infos_get);
1110         (*dev->dev_ops->dev_infos_get)(dev, dev_info);
1111
1112         dev_info->driver_name = dev->device->driver->name;
1113         dev_info->device = dev->device;
1114 }
1115
1116
1117 int
1118 rte_cryptodev_callback_register(uint8_t dev_id,
1119                         enum rte_cryptodev_event_type event,
1120                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
1121 {
1122         struct rte_cryptodev *dev;
1123         struct rte_cryptodev_callback *user_cb;
1124
1125         if (!cb_fn)
1126                 return -EINVAL;
1127
1128         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1129                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1130                 return -EINVAL;
1131         }
1132
1133         dev = &rte_crypto_devices[dev_id];
1134         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1135
1136         TAILQ_FOREACH(user_cb, &(dev->link_intr_cbs), next) {
1137                 if (user_cb->cb_fn == cb_fn &&
1138                         user_cb->cb_arg == cb_arg &&
1139                         user_cb->event == event) {
1140                         break;
1141                 }
1142         }
1143
1144         /* create a new callback. */
1145         if (user_cb == NULL) {
1146                 user_cb = rte_zmalloc("INTR_USER_CALLBACK",
1147                                 sizeof(struct rte_cryptodev_callback), 0);
1148                 if (user_cb != NULL) {
1149                         user_cb->cb_fn = cb_fn;
1150                         user_cb->cb_arg = cb_arg;
1151                         user_cb->event = event;
1152                         TAILQ_INSERT_TAIL(&(dev->link_intr_cbs), user_cb, next);
1153                 }
1154         }
1155
1156         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1157         return (user_cb == NULL) ? -ENOMEM : 0;
1158 }
1159
1160 int
1161 rte_cryptodev_callback_unregister(uint8_t dev_id,
1162                         enum rte_cryptodev_event_type event,
1163                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
1164 {
1165         int ret;
1166         struct rte_cryptodev *dev;
1167         struct rte_cryptodev_callback *cb, *next;
1168
1169         if (!cb_fn)
1170                 return -EINVAL;
1171
1172         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1173                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1174                 return -EINVAL;
1175         }
1176
1177         dev = &rte_crypto_devices[dev_id];
1178         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1179
1180         ret = 0;
1181         for (cb = TAILQ_FIRST(&dev->link_intr_cbs); cb != NULL; cb = next) {
1182
1183                 next = TAILQ_NEXT(cb, next);
1184
1185                 if (cb->cb_fn != cb_fn || cb->event != event ||
1186                                 (cb->cb_arg != (void *)-1 &&
1187                                 cb->cb_arg != cb_arg))
1188                         continue;
1189
1190                 /*
1191                  * if this callback is not executing right now,
1192                  * then remove it.
1193                  */
1194                 if (cb->active == 0) {
1195                         TAILQ_REMOVE(&(dev->link_intr_cbs), cb, next);
1196                         rte_free(cb);
1197                 } else {
1198                         ret = -EAGAIN;
1199                 }
1200         }
1201
1202         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1203         return ret;
1204 }
1205
1206 void
1207 rte_cryptodev_pmd_callback_process(struct rte_cryptodev *dev,
1208         enum rte_cryptodev_event_type event)
1209 {
1210         struct rte_cryptodev_callback *cb_lst;
1211         struct rte_cryptodev_callback dev_cb;
1212
1213         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1214         TAILQ_FOREACH(cb_lst, &(dev->link_intr_cbs), next) {
1215                 if (cb_lst->cb_fn == NULL || cb_lst->event != event)
1216                         continue;
1217                 dev_cb = *cb_lst;
1218                 cb_lst->active = 1;
1219                 rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1220                 dev_cb.cb_fn(dev->data->dev_id, dev_cb.event,
1221                                                 dev_cb.cb_arg);
1222                 rte_spinlock_lock(&rte_cryptodev_cb_lock);
1223                 cb_lst->active = 0;
1224         }
1225         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1226 }
1227
1228
1229 int
1230 rte_cryptodev_sym_session_init(uint8_t dev_id,
1231                 struct rte_cryptodev_sym_session *sess,
1232                 struct rte_crypto_sym_xform *xforms,
1233                 struct rte_mempool *mp)
1234 {
1235         struct rte_cryptodev *dev;
1236         uint32_t sess_priv_sz = rte_cryptodev_sym_get_private_session_size(
1237                         dev_id);
1238         uint8_t index;
1239         int ret;
1240
1241         dev = rte_cryptodev_pmd_get_dev(dev_id);
1242
1243         if (sess == NULL || xforms == NULL || dev == NULL)
1244                 return -EINVAL;
1245
1246         if (mp->elt_size < sess_priv_sz)
1247                 return -EINVAL;
1248
1249         index = dev->driver_id;
1250         if (index >= sess->nb_drivers)
1251                 return -EINVAL;
1252
1253         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->sym_session_configure, -ENOTSUP);
1254
1255         if (sess->sess_data[index].refcnt == 0) {
1256                 ret = dev->dev_ops->sym_session_configure(dev, xforms,
1257                                                         sess, mp);
1258                 if (ret < 0) {
1259                         CDEV_LOG_ERR(
1260                                 "dev_id %d failed to configure session details",
1261                                 dev_id);
1262                         return ret;
1263                 }
1264         }
1265
1266         sess->sess_data[index].refcnt++;
1267         return 0;
1268 }
1269
1270 int
1271 rte_cryptodev_asym_session_init(uint8_t dev_id,
1272                 struct rte_cryptodev_asym_session *sess,
1273                 struct rte_crypto_asym_xform *xforms,
1274                 struct rte_mempool *mp)
1275 {
1276         struct rte_cryptodev *dev;
1277         uint8_t index;
1278         int ret;
1279
1280         dev = rte_cryptodev_pmd_get_dev(dev_id);
1281
1282         if (sess == NULL || xforms == NULL || dev == NULL)
1283                 return -EINVAL;
1284
1285         index = dev->driver_id;
1286
1287         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->asym_session_configure,
1288                                 -ENOTSUP);
1289
1290         if (sess->sess_private_data[index] == NULL) {
1291                 ret = dev->dev_ops->asym_session_configure(dev,
1292                                                         xforms,
1293                                                         sess, mp);
1294                 if (ret < 0) {
1295                         CDEV_LOG_ERR(
1296                                 "dev_id %d failed to configure session details",
1297                                 dev_id);
1298                         return ret;
1299                 }
1300         }
1301
1302         return 0;
1303 }
1304
1305 struct rte_mempool *
1306 rte_cryptodev_sym_session_pool_create(const char *name, uint32_t nb_elts,
1307         uint32_t elt_size, uint32_t cache_size, uint16_t user_data_size,
1308         int socket_id)
1309 {
1310         struct rte_mempool *mp;
1311         struct rte_cryptodev_sym_session_pool_private_data *pool_priv;
1312         uint32_t obj_sz;
1313
1314         obj_sz = rte_cryptodev_sym_get_header_session_size() + user_data_size;
1315         if (obj_sz > elt_size)
1316                 CDEV_LOG_INFO("elt_size %u is expanded to %u\n", elt_size,
1317                                 obj_sz);
1318         else
1319                 obj_sz = elt_size;
1320
1321         mp = rte_mempool_create(name, nb_elts, obj_sz, cache_size,
1322                         (uint32_t)(sizeof(*pool_priv)),
1323                         NULL, NULL, NULL, NULL,
1324                         socket_id, 0);
1325         if (mp == NULL) {
1326                 CDEV_LOG_ERR("%s(name=%s) failed, rte_errno=%d\n",
1327                         __func__, name, rte_errno);
1328                 return NULL;
1329         }
1330
1331         pool_priv = rte_mempool_get_priv(mp);
1332         if (!pool_priv) {
1333                 CDEV_LOG_ERR("%s(name=%s) failed to get private data\n",
1334                         __func__, name);
1335                 rte_mempool_free(mp);
1336                 return NULL;
1337         }
1338
1339         pool_priv->nb_drivers = nb_drivers;
1340         pool_priv->user_data_sz = user_data_size;
1341
1342         return mp;
1343 }
1344
1345 static unsigned int
1346 rte_cryptodev_sym_session_data_size(struct rte_cryptodev_sym_session *sess)
1347 {
1348         return (sizeof(sess->sess_data[0]) * sess->nb_drivers) +
1349                         sess->user_data_sz;
1350 }
1351
1352 struct rte_cryptodev_sym_session *
1353 rte_cryptodev_sym_session_create(struct rte_mempool *mp)
1354 {
1355         struct rte_cryptodev_sym_session *sess;
1356         struct rte_cryptodev_sym_session_pool_private_data *pool_priv;
1357
1358         if (!mp) {
1359                 CDEV_LOG_ERR("Invalid mempool\n");
1360                 return NULL;
1361         }
1362
1363         pool_priv = rte_mempool_get_priv(mp);
1364
1365         if (!pool_priv || mp->private_data_size < sizeof(*pool_priv)) {
1366                 CDEV_LOG_ERR("Invalid mempool\n");
1367                 return NULL;
1368         }
1369
1370         /* Allocate a session structure from the session pool */
1371         if (rte_mempool_get(mp, (void **)&sess)) {
1372                 CDEV_LOG_ERR("couldn't get object from session mempool");
1373                 return NULL;
1374         }
1375
1376         sess->nb_drivers = pool_priv->nb_drivers;
1377         sess->user_data_sz = pool_priv->user_data_sz;
1378         sess->opaque_data = 0;
1379
1380         /* Clear device session pointer.
1381          * Include the flag indicating presence of user data
1382          */
1383         memset(sess->sess_data, 0,
1384                         rte_cryptodev_sym_session_data_size(sess));
1385
1386         return sess;
1387 }
1388
1389 struct rte_cryptodev_asym_session *
1390 rte_cryptodev_asym_session_create(struct rte_mempool *mp)
1391 {
1392         struct rte_cryptodev_asym_session *sess;
1393
1394         /* Allocate a session structure from the session pool */
1395         if (rte_mempool_get(mp, (void **)&sess)) {
1396                 CDEV_LOG_ERR("couldn't get object from session mempool");
1397                 return NULL;
1398         }
1399
1400         /* Clear device session pointer.
1401          * Include the flag indicating presence of private data
1402          */
1403         memset(sess, 0, (sizeof(void *) * nb_drivers) + sizeof(uint8_t));
1404
1405         return sess;
1406 }
1407
1408 int
1409 rte_cryptodev_sym_session_clear(uint8_t dev_id,
1410                 struct rte_cryptodev_sym_session *sess)
1411 {
1412         struct rte_cryptodev *dev;
1413         uint8_t driver_id;
1414
1415         dev = rte_cryptodev_pmd_get_dev(dev_id);
1416
1417         if (dev == NULL || sess == NULL)
1418                 return -EINVAL;
1419
1420         driver_id = dev->driver_id;
1421         if (sess->sess_data[driver_id].refcnt == 0)
1422                 return 0;
1423         if (--sess->sess_data[driver_id].refcnt != 0)
1424                 return -EBUSY;
1425
1426         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->sym_session_clear, -ENOTSUP);
1427
1428         dev->dev_ops->sym_session_clear(dev, sess);
1429
1430         return 0;
1431 }
1432
1433 int
1434 rte_cryptodev_asym_session_clear(uint8_t dev_id,
1435                 struct rte_cryptodev_asym_session *sess)
1436 {
1437         struct rte_cryptodev *dev;
1438
1439         dev = rte_cryptodev_pmd_get_dev(dev_id);
1440
1441         if (dev == NULL || sess == NULL)
1442                 return -EINVAL;
1443
1444         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->asym_session_clear, -ENOTSUP);
1445
1446         dev->dev_ops->asym_session_clear(dev, sess);
1447
1448         return 0;
1449 }
1450
1451 int
1452 rte_cryptodev_sym_session_free(struct rte_cryptodev_sym_session *sess)
1453 {
1454         uint8_t i;
1455         struct rte_mempool *sess_mp;
1456
1457         if (sess == NULL)
1458                 return -EINVAL;
1459
1460         /* Check that all device private data has been freed */
1461         for (i = 0; i < sess->nb_drivers; i++) {
1462                 if (sess->sess_data[i].refcnt != 0)
1463                         return -EBUSY;
1464         }
1465
1466         /* Return session to mempool */
1467         sess_mp = rte_mempool_from_obj(sess);
1468         rte_mempool_put(sess_mp, sess);
1469
1470         return 0;
1471 }
1472
1473 int
1474 rte_cryptodev_asym_session_free(struct rte_cryptodev_asym_session *sess)
1475 {
1476         uint8_t i;
1477         void *sess_priv;
1478         struct rte_mempool *sess_mp;
1479
1480         if (sess == NULL)
1481                 return -EINVAL;
1482
1483         /* Check that all device private data has been freed */
1484         for (i = 0; i < nb_drivers; i++) {
1485                 sess_priv = get_asym_session_private_data(sess, i);
1486                 if (sess_priv != NULL)
1487                         return -EBUSY;
1488         }
1489
1490         /* Return session to mempool */
1491         sess_mp = rte_mempool_from_obj(sess);
1492         rte_mempool_put(sess_mp, sess);
1493
1494         return 0;
1495 }
1496
1497 unsigned int
1498 rte_cryptodev_sym_get_header_session_size(void)
1499 {
1500         /*
1501          * Header contains pointers to the private data of all registered
1502          * drivers and all necessary information to ensure safely clear
1503          * or free al session.
1504          */
1505         struct rte_cryptodev_sym_session s = {0};
1506
1507         s.nb_drivers = nb_drivers;
1508
1509         return (unsigned int)(sizeof(s) +
1510                         rte_cryptodev_sym_session_data_size(&s));
1511 }
1512
1513 unsigned int
1514 rte_cryptodev_sym_get_existing_header_session_size(
1515                 struct rte_cryptodev_sym_session *sess)
1516 {
1517         if (!sess)
1518                 return 0;
1519         else
1520                 return (unsigned int)(sizeof(*sess) +
1521                                 rte_cryptodev_sym_session_data_size(sess));
1522 }
1523
1524 unsigned int
1525 rte_cryptodev_asym_get_header_session_size(void)
1526 {
1527         /*
1528          * Header contains pointers to the private data
1529          * of all registered drivers, and a flag which
1530          * indicates presence of private data
1531          */
1532         return ((sizeof(void *) * nb_drivers) + sizeof(uint8_t));
1533 }
1534
1535 unsigned int
1536 rte_cryptodev_sym_get_private_session_size(uint8_t dev_id)
1537 {
1538         struct rte_cryptodev *dev;
1539         unsigned int priv_sess_size;
1540
1541         if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
1542                 return 0;
1543
1544         dev = rte_cryptodev_pmd_get_dev(dev_id);
1545
1546         if (*dev->dev_ops->sym_session_get_size == NULL)
1547                 return 0;
1548
1549         priv_sess_size = (*dev->dev_ops->sym_session_get_size)(dev);
1550
1551         return priv_sess_size;
1552 }
1553
1554 unsigned int
1555 rte_cryptodev_asym_get_private_session_size(uint8_t dev_id)
1556 {
1557         struct rte_cryptodev *dev;
1558         unsigned int header_size = sizeof(void *) * nb_drivers;
1559         unsigned int priv_sess_size;
1560
1561         if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
1562                 return 0;
1563
1564         dev = rte_cryptodev_pmd_get_dev(dev_id);
1565
1566         if (*dev->dev_ops->asym_session_get_size == NULL)
1567                 return 0;
1568
1569         priv_sess_size = (*dev->dev_ops->asym_session_get_size)(dev);
1570         if (priv_sess_size < header_size)
1571                 return header_size;
1572
1573         return priv_sess_size;
1574
1575 }
1576
1577 int
1578 rte_cryptodev_sym_session_set_user_data(
1579                                         struct rte_cryptodev_sym_session *sess,
1580                                         void *data,
1581                                         uint16_t size)
1582 {
1583         if (sess == NULL)
1584                 return -EINVAL;
1585
1586         if (sess->user_data_sz < size)
1587                 return -ENOMEM;
1588
1589         rte_memcpy(sess->sess_data + sess->nb_drivers, data, size);
1590         return 0;
1591 }
1592
1593 void *
1594 rte_cryptodev_sym_session_get_user_data(
1595                                         struct rte_cryptodev_sym_session *sess)
1596 {
1597         if (sess == NULL || sess->user_data_sz == 0)
1598                 return NULL;
1599
1600         return (void *)(sess->sess_data + sess->nb_drivers);
1601 }
1602
1603 /** Initialise rte_crypto_op mempool element */
1604 static void
1605 rte_crypto_op_init(struct rte_mempool *mempool,
1606                 void *opaque_arg,
1607                 void *_op_data,
1608                 __rte_unused unsigned i)
1609 {
1610         struct rte_crypto_op *op = _op_data;
1611         enum rte_crypto_op_type type = *(enum rte_crypto_op_type *)opaque_arg;
1612
1613         memset(_op_data, 0, mempool->elt_size);
1614
1615         __rte_crypto_op_reset(op, type);
1616
1617         op->phys_addr = rte_mem_virt2iova(_op_data);
1618         op->mempool = mempool;
1619 }
1620
1621
1622 struct rte_mempool *
1623 rte_crypto_op_pool_create(const char *name, enum rte_crypto_op_type type,
1624                 unsigned nb_elts, unsigned cache_size, uint16_t priv_size,
1625                 int socket_id)
1626 {
1627         struct rte_crypto_op_pool_private *priv;
1628
1629         unsigned elt_size = sizeof(struct rte_crypto_op) +
1630                         priv_size;
1631
1632         if (type == RTE_CRYPTO_OP_TYPE_SYMMETRIC) {
1633                 elt_size += sizeof(struct rte_crypto_sym_op);
1634         } else if (type == RTE_CRYPTO_OP_TYPE_ASYMMETRIC) {
1635                 elt_size += sizeof(struct rte_crypto_asym_op);
1636         } else if (type == RTE_CRYPTO_OP_TYPE_UNDEFINED) {
1637                 elt_size += RTE_MAX(sizeof(struct rte_crypto_sym_op),
1638                                     sizeof(struct rte_crypto_asym_op));
1639         } else {
1640                 CDEV_LOG_ERR("Invalid op_type\n");
1641                 return NULL;
1642         }
1643
1644         /* lookup mempool in case already allocated */
1645         struct rte_mempool *mp = rte_mempool_lookup(name);
1646
1647         if (mp != NULL) {
1648                 priv = (struct rte_crypto_op_pool_private *)
1649                                 rte_mempool_get_priv(mp);
1650
1651                 if (mp->elt_size != elt_size ||
1652                                 mp->cache_size < cache_size ||
1653                                 mp->size < nb_elts ||
1654                                 priv->priv_size <  priv_size) {
1655                         mp = NULL;
1656                         CDEV_LOG_ERR("Mempool %s already exists but with "
1657                                         "incompatible parameters", name);
1658                         return NULL;
1659                 }
1660                 return mp;
1661         }
1662
1663         mp = rte_mempool_create(
1664                         name,
1665                         nb_elts,
1666                         elt_size,
1667                         cache_size,
1668                         sizeof(struct rte_crypto_op_pool_private),
1669                         NULL,
1670                         NULL,
1671                         rte_crypto_op_init,
1672                         &type,
1673                         socket_id,
1674                         0);
1675
1676         if (mp == NULL) {
1677                 CDEV_LOG_ERR("Failed to create mempool %s", name);
1678                 return NULL;
1679         }
1680
1681         priv = (struct rte_crypto_op_pool_private *)
1682                         rte_mempool_get_priv(mp);
1683
1684         priv->priv_size = priv_size;
1685         priv->type = type;
1686
1687         return mp;
1688 }
1689
1690 int
1691 rte_cryptodev_pmd_create_dev_name(char *name, const char *dev_name_prefix)
1692 {
1693         struct rte_cryptodev *dev = NULL;
1694         uint32_t i = 0;
1695
1696         if (name == NULL)
1697                 return -EINVAL;
1698
1699         for (i = 0; i < RTE_CRYPTO_MAX_DEVS; i++) {
1700                 int ret = snprintf(name, RTE_CRYPTODEV_NAME_MAX_LEN,
1701                                 "%s_%u", dev_name_prefix, i);
1702
1703                 if (ret < 0)
1704                         return ret;
1705
1706                 dev = rte_cryptodev_pmd_get_named_dev(name);
1707                 if (!dev)
1708                         return 0;
1709         }
1710
1711         return -1;
1712 }
1713
1714 TAILQ_HEAD(cryptodev_driver_list, cryptodev_driver);
1715
1716 static struct cryptodev_driver_list cryptodev_driver_list =
1717         TAILQ_HEAD_INITIALIZER(cryptodev_driver_list);
1718
1719 int
1720 rte_cryptodev_driver_id_get(const char *name)
1721 {
1722         struct cryptodev_driver *driver;
1723         const char *driver_name;
1724
1725         if (name == NULL) {
1726                 RTE_LOG(DEBUG, CRYPTODEV, "name pointer NULL");
1727                 return -1;
1728         }
1729
1730         TAILQ_FOREACH(driver, &cryptodev_driver_list, next) {
1731                 driver_name = driver->driver->name;
1732                 if (strncmp(driver_name, name, strlen(driver_name) + 1) == 0)
1733                         return driver->id;
1734         }
1735         return -1;
1736 }
1737
1738 const char *
1739 rte_cryptodev_name_get(uint8_t dev_id)
1740 {
1741         struct rte_cryptodev *dev = rte_cryptodev_pmd_get_dev(dev_id);
1742
1743         if (dev == NULL)
1744                 return NULL;
1745
1746         return dev->data->name;
1747 }
1748
1749 const char *
1750 rte_cryptodev_driver_name_get(uint8_t driver_id)
1751 {
1752         struct cryptodev_driver *driver;
1753
1754         TAILQ_FOREACH(driver, &cryptodev_driver_list, next)
1755                 if (driver->id == driver_id)
1756                         return driver->driver->name;
1757         return NULL;
1758 }
1759
1760 uint8_t
1761 rte_cryptodev_allocate_driver(struct cryptodev_driver *crypto_drv,
1762                 const struct rte_driver *drv)
1763 {
1764         crypto_drv->driver = drv;
1765         crypto_drv->id = nb_drivers;
1766
1767         TAILQ_INSERT_TAIL(&cryptodev_driver_list, crypto_drv, next);
1768
1769         return nb_drivers++;
1770 }