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         case RTE_CRYPTODEV_FF_DIGEST_ENCRYPTED:
 494                 return "DIGEST_ENCRYPTED";
 495         default:
 496                 return NULL;
 497         }
 498 }
 499
 500 struct rte_cryptodev *
 501 rte_cryptodev_pmd_get_dev(uint8_t dev_id)
 502 {
 503         return &cryptodev_globals.devs[dev_id];
 504 }
 505
 506 struct rte_cryptodev *
 507 rte_cryptodev_pmd_get_named_dev(const char *name)
 508 {
 509         struct rte_cryptodev *dev;
 510         unsigned int i;
 511
 512         if (name == NULL)
 513                 return NULL;
 514
 515         for (i = 0; i < cryptodev_globals.max_devs; i++) {
 516                 dev = &cryptodev_globals.devs[i];
 517
 518                 if ((dev->attached == RTE_CRYPTODEV_ATTACHED) &&
 519                                 (strcmp(dev->data->name, name) == 0))
 520                         return dev;
 521         }
 522
 523         return NULL;
 524 }
 525
 526 unsigned int
 527 rte_cryptodev_pmd_is_valid_dev(uint8_t dev_id)
 528 {
 529         struct rte_cryptodev *dev = NULL;
 530
 531         if (dev_id >= cryptodev_globals.nb_devs)
 532                 return 0;
 533
 534         dev = rte_cryptodev_pmd_get_dev(dev_id);
 535         if (dev->attached != RTE_CRYPTODEV_ATTACHED)
 536                 return 0;
 537         else
 538                 return 1;
 539 }
 540
 541
 542 int
 543 rte_cryptodev_get_dev_id(const char *name)
 544 {
 545         unsigned i;
 546
 547         if (name == NULL)
 548                 return -1;
 549
 550         for (i = 0; i < cryptodev_globals.nb_devs; i++)
 551                 if ((strcmp(cryptodev_globals.devs[i].data->name, name)
 552                                 == 0) &&
 553                                 (cryptodev_globals.devs[i].attached ==
 554                                                 RTE_CRYPTODEV_ATTACHED))
 555                         return i;
 556
 557         return -1;
 558 }
 559
 560 uint8_t
 561 rte_cryptodev_count(void)
 562 {
 563         return cryptodev_globals.nb_devs;
 564 }
 565
 566 uint8_t
 567 rte_cryptodev_device_count_by_driver(uint8_t driver_id)
 568 {
 569         uint8_t i, dev_count = 0;
 570
 571         for (i = 0; i < cryptodev_globals.max_devs; i++)
 572                 if (cryptodev_globals.devs[i].driver_id == driver_id &&
 573                         cryptodev_globals.devs[i].attached ==
 574                                         RTE_CRYPTODEV_ATTACHED)
 575                         dev_count++;
 576
 577         return dev_count;
 578 }
 579
 580 uint8_t
 581 rte_cryptodev_devices_get(const char *driver_name, uint8_t *devices,
 582         uint8_t nb_devices)
 583 {
 584         uint8_t i, count = 0;
 585         struct rte_cryptodev *devs = cryptodev_globals.devs;
 586         uint8_t max_devs = cryptodev_globals.max_devs;
 587
 588         for (i = 0; i < max_devs && count < nb_devices; i++) {
 589
 590                 if (devs[i].attached == RTE_CRYPTODEV_ATTACHED) {
 591                         int cmp;
 592
 593                         cmp = strncmp(devs[i].device->driver->name,
 594                                         driver_name,
 595                                         strlen(driver_name) + 1);
 596
 597                         if (cmp == 0)
 598                                 devices[count++] = devs[i].data->dev_id;
 599                 }
 600         }
 601
 602         return count;
 603 }
 604
 605 void *
 606 rte_cryptodev_get_sec_ctx(uint8_t dev_id)
 607 {
 608         if (rte_crypto_devices[dev_id].feature_flags &
 609                         RTE_CRYPTODEV_FF_SECURITY)
 610                 return rte_crypto_devices[dev_id].security_ctx;
 611
 612         return NULL;
 613 }
 614
 615 int
 616 rte_cryptodev_socket_id(uint8_t dev_id)
 617 {
 618         struct rte_cryptodev *dev;
 619
 620         if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
 621                 return -1;
 622
 623         dev = rte_cryptodev_pmd_get_dev(dev_id);
 624
 625         return dev->data->socket_id;
 626 }
 627
 628 static inline int
 629 rte_cryptodev_data_alloc(uint8_t dev_id, struct rte_cryptodev_data **data,
 630                 int socket_id)
 631 {
 632         char mz_name[RTE_MEMZONE_NAMESIZE];
 633         const struct rte_memzone *mz;
 634         int n;
 635
 636         /* generate memzone name */
 637         n = snprintf(mz_name, sizeof(mz_name), "rte_cryptodev_data_%u", dev_id);
 638         if (n >= (int)sizeof(mz_name))
 639                 return -EINVAL;
 640
 641         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 642                 mz = rte_memzone_reserve(mz_name,
 643                                 sizeof(struct rte_cryptodev_data),
 644                                 socket_id, 0);
 645         } else
 646                 mz = rte_memzone_lookup(mz_name);
 647
 648         if (mz == NULL)
 649                 return -ENOMEM;
 650
 651         *data = mz->addr;
 652         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 653                 memset(*data, 0, sizeof(struct rte_cryptodev_data));
 654
 655         return 0;
 656 }
 657
 658 static inline int
 659 rte_cryptodev_data_free(uint8_t dev_id, struct rte_cryptodev_data **data)
 660 {
 661         char mz_name[RTE_MEMZONE_NAMESIZE];
 662         const struct rte_memzone *mz;
 663         int n;
 664
 665         /* generate memzone name */
 666         n = snprintf(mz_name, sizeof(mz_name), "rte_cryptodev_data_%u", dev_id);
 667         if (n >= (int)sizeof(mz_name))
 668                 return -EINVAL;
 669
 670         mz = rte_memzone_lookup(mz_name);
 671         if (mz == NULL)
 672                 return -ENOMEM;
 673
 674         RTE_ASSERT(*data == mz->addr);
 675         *data = NULL;
 676
 677         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 678                 return rte_memzone_free(mz);
 679
 680         return 0;
 681 }
 682
 683 static uint8_t
 684 rte_cryptodev_find_free_device_index(void)
 685 {
 686         uint8_t dev_id;
 687
 688         for (dev_id = 0; dev_id < RTE_CRYPTO_MAX_DEVS; dev_id++) {
 689                 if (rte_crypto_devices[dev_id].attached ==
 690                                 RTE_CRYPTODEV_DETACHED)
 691                         return dev_id;
 692         }
 693         return RTE_CRYPTO_MAX_DEVS;
 694 }
 695
 696 struct rte_cryptodev *
 697 rte_cryptodev_pmd_allocate(const char *name, int socket_id)
 698 {
 699         struct rte_cryptodev *cryptodev;
 700         uint8_t dev_id;
 701
 702         if (rte_cryptodev_pmd_get_named_dev(name) != NULL) {
 703                 CDEV_LOG_ERR("Crypto device with name %s already "
 704                                 "allocated!", name);
 705                 return NULL;
 706         }
 707
 708         dev_id = rte_cryptodev_find_free_device_index();
 709         if (dev_id == RTE_CRYPTO_MAX_DEVS) {
 710                 CDEV_LOG_ERR("Reached maximum number of crypto devices");
 711                 return NULL;
 712         }
 713
 714         cryptodev = rte_cryptodev_pmd_get_dev(dev_id);
 715
 716         if (cryptodev->data == NULL) {
 717                 struct rte_cryptodev_data **cryptodev_data =
 718                                 &cryptodev_globals.data[dev_id];
 719
 720                 int retval = rte_cryptodev_data_alloc(dev_id, cryptodev_data,
 721                                 socket_id);
 722
 723                 if (retval < 0 || *cryptodev_data == NULL)
 724                         return NULL;
 725
 726                 cryptodev->data = *cryptodev_data;
 727
 728                 if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 729                         strlcpy(cryptodev->data->name, name,
 730                                 RTE_CRYPTODEV_NAME_MAX_LEN);
 731
 732                         cryptodev->data->dev_id = dev_id;
 733                         cryptodev->data->socket_id = socket_id;
 734                         cryptodev->data->dev_started = 0;
 735                 }
 736
 737                 /* init user callbacks */
 738                 TAILQ_INIT(&(cryptodev->link_intr_cbs));
 739
 740                 cryptodev->attached = RTE_CRYPTODEV_ATTACHED;
 741
 742                 cryptodev_globals.nb_devs++;
 743         }
 744
 745         return cryptodev;
 746 }
 747
 748 int
 749 rte_cryptodev_pmd_release_device(struct rte_cryptodev *cryptodev)
 750 {
 751         int ret;
 752         uint8_t dev_id;
 753
 754         if (cryptodev == NULL)
 755                 return -EINVAL;
 756
 757         dev_id = cryptodev->data->dev_id;
 758
 759         /* Close device only if device operations have been set */
 760         if (cryptodev->dev_ops) {
 761                 ret = rte_cryptodev_close(dev_id);
 762                 if (ret < 0)
 763                         return ret;
 764         }
 765
 766         ret = rte_cryptodev_data_free(dev_id, &cryptodev_globals.data[dev_id]);
 767         if (ret < 0)
 768                 return ret;
 769
 770         cryptodev->attached = RTE_CRYPTODEV_DETACHED;
 771         cryptodev_globals.nb_devs--;
 772         return 0;
 773 }
 774
 775 uint16_t
 776 rte_cryptodev_queue_pair_count(uint8_t dev_id)
 777 {
 778         struct rte_cryptodev *dev;
 779
 780         dev = &rte_crypto_devices[dev_id];
 781         return dev->data->nb_queue_pairs;
 782 }
 783
 784 static int
 785 rte_cryptodev_queue_pairs_config(struct rte_cryptodev *dev, uint16_t nb_qpairs,
 786                 int socket_id)
 787 {
 788         struct rte_cryptodev_info dev_info;
 789         void **qp;
 790         unsigned i;
 791
 792         if ((dev == NULL) || (nb_qpairs < 1)) {
 793                 CDEV_LOG_ERR("invalid param: dev %p, nb_queues %u",
 794                                                         dev, nb_qpairs);
 795                 return -EINVAL;
 796         }
 797
 798         CDEV_LOG_DEBUG("Setup %d queues pairs on device %u",
 799                         nb_qpairs, dev->data->dev_id);
 800
 801         memset(&dev_info, 0, sizeof(struct rte_cryptodev_info));
 802
 803         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP);
 804         (*dev->dev_ops->dev_infos_get)(dev, &dev_info);
 805
 806         if (nb_qpairs > (dev_info.max_nb_queue_pairs)) {
 807                 CDEV_LOG_ERR("Invalid num queue_pairs (%u) for dev %u",
 808                                 nb_qpairs, dev->data->dev_id);
 809             return -EINVAL;
 810         }
 811
 812         if (dev->data->queue_pairs == NULL) { /* first time configuration */
 813                 dev->data->queue_pairs = rte_zmalloc_socket(
 814                                 "cryptodev->queue_pairs",
 815                                 sizeof(dev->data->queue_pairs[0]) * nb_qpairs,
 816                                 RTE_CACHE_LINE_SIZE, socket_id);
 817
 818                 if (dev->data->queue_pairs == NULL) {
 819                         dev->data->nb_queue_pairs = 0;
 820                         CDEV_LOG_ERR("failed to get memory for qp meta data, "
 821                                                         "nb_queues %u",
 822                                                         nb_qpairs);
 823                         return -(ENOMEM);
 824                 }
 825         } else { /* re-configure */
 826                 int ret;
 827                 uint16_t old_nb_queues = dev->data->nb_queue_pairs;
 828
 829                 qp = dev->data->queue_pairs;
 830
 831                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_release,
 832                                 -ENOTSUP);
 833
 834                 for (i = nb_qpairs; i < old_nb_queues; i++) {
 835                         ret = (*dev->dev_ops->queue_pair_release)(dev, i);
 836                         if (ret < 0)
 837                                 return ret;
 838                 }
 839
 840                 qp = rte_realloc(qp, sizeof(qp[0]) * nb_qpairs,
 841                                 RTE_CACHE_LINE_SIZE);
 842                 if (qp == NULL) {
 843                         CDEV_LOG_ERR("failed to realloc qp meta data,"
 844                                                 " nb_queues %u", nb_qpairs);
 845                         return -(ENOMEM);
 846                 }
 847
 848                 if (nb_qpairs > old_nb_queues) {
 849                         uint16_t new_qs = nb_qpairs - old_nb_queues;
 850
 851                         memset(qp + old_nb_queues, 0,
 852                                 sizeof(qp[0]) * new_qs);
 853                 }
 854
 855                 dev->data->queue_pairs = qp;
 856
 857         }
 858         dev->data->nb_queue_pairs = nb_qpairs;
 859         return 0;
 860 }
 861
 862 int
 863 rte_cryptodev_configure(uint8_t dev_id, struct rte_cryptodev_config *config)
 864 {
 865         struct rte_cryptodev *dev;
 866         int diag;
 867
 868         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 869                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 870                 return -EINVAL;
 871         }
 872
 873         dev = &rte_crypto_devices[dev_id];
 874
 875         if (dev->data->dev_started) {
 876                 CDEV_LOG_ERR(
 877                     "device %d must be stopped to allow configuration", dev_id);
 878                 return -EBUSY;
 879         }
 880
 881         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_configure, -ENOTSUP);
 882
 883         /* Setup new number of queue pairs and reconfigure device. */
 884         diag = rte_cryptodev_queue_pairs_config(dev, config->nb_queue_pairs,
 885                         config->socket_id);
 886         if (diag != 0) {
 887                 CDEV_LOG_ERR("dev%d rte_crypto_dev_queue_pairs_config = %d",
 888                                 dev_id, diag);
 889                 return diag;
 890         }
 891
 892         return (*dev->dev_ops->dev_configure)(dev, config);
 893 }
 894
 895
 896 int
 897 rte_cryptodev_start(uint8_t dev_id)
 898 {
 899         struct rte_cryptodev *dev;
 900         int diag;
 901
 902         CDEV_LOG_DEBUG("Start dev_id=%" PRIu8, dev_id);
 903
 904         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 905                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 906                 return -EINVAL;
 907         }
 908
 909         dev = &rte_crypto_devices[dev_id];
 910
 911         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_start, -ENOTSUP);
 912
 913         if (dev->data->dev_started != 0) {
 914                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already started",
 915                         dev_id);
 916                 return 0;
 917         }
 918
 919         diag = (*dev->dev_ops->dev_start)(dev);
 920         if (diag == 0)
 921                 dev->data->dev_started = 1;
 922         else
 923                 return diag;
 924
 925         return 0;
 926 }
 927
 928 void
 929 rte_cryptodev_stop(uint8_t dev_id)
 930 {
 931         struct rte_cryptodev *dev;
 932
 933         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 934                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 935                 return;
 936         }
 937
 938         dev = &rte_crypto_devices[dev_id];
 939
 940         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_stop);
 941
 942         if (dev->data->dev_started == 0) {
 943                 CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already stopped",
 944                         dev_id);
 945                 return;
 946         }
 947
 948         (*dev->dev_ops->dev_stop)(dev);
 949         dev->data->dev_started = 0;
 950 }
 951
 952 int
 953 rte_cryptodev_close(uint8_t dev_id)
 954 {
 955         struct rte_cryptodev *dev;
 956         int retval;
 957
 958         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
 959                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
 960                 return -1;
 961         }
 962
 963         dev = &rte_crypto_devices[dev_id];
 964
 965         /* Device must be stopped before it can be closed */
 966         if (dev->data->dev_started == 1) {
 967                 CDEV_LOG_ERR("Device %u must be stopped before closing",
 968                                 dev_id);
 969                 return -EBUSY;
 970         }
 971
 972         /* We can't close the device if there are outstanding sessions in use */
 973         if (dev->data->session_pool != NULL) {
 974                 if (!rte_mempool_full(dev->data->session_pool)) {
 975                         CDEV_LOG_ERR("dev_id=%u close failed, session mempool "
 976                                         "has sessions still in use, free "
 977                                         "all sessions before calling close",
 978                                         (unsigned)dev_id);
 979                         return -EBUSY;
 980                 }
 981         }
 982
 983         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_close, -ENOTSUP);
 984         retval = (*dev->dev_ops->dev_close)(dev);
 985
 986         if (retval < 0)
 987                 return retval;
 988
 989         return 0;
 990 }
 991
 992 int
 993 rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
 994                 const struct rte_cryptodev_qp_conf *qp_conf, int socket_id)
 995
 996 {
 997         struct rte_cryptodev *dev;
 998
 999         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1000                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1001                 return -EINVAL;
1002         }
1003
1004         dev = &rte_crypto_devices[dev_id];
1005         if (queue_pair_id >= dev->data->nb_queue_pairs) {
1006                 CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
1007                 return -EINVAL;
1008         }
1009
1010         if (!qp_conf) {
1011                 CDEV_LOG_ERR("qp_conf cannot be NULL\n");
1012                 return -EINVAL;
1013         }
1014
1015         if ((qp_conf->mp_session && !qp_conf->mp_session_private) ||
1016                         (!qp_conf->mp_session && qp_conf->mp_session_private)) {
1017                 CDEV_LOG_ERR("Invalid mempools\n");
1018                 return -EINVAL;
1019         }
1020
1021         if (qp_conf->mp_session) {
1022                 struct rte_cryptodev_sym_session_pool_private_data *pool_priv;
1023                 uint32_t obj_size = qp_conf->mp_session->elt_size;
1024                 uint32_t obj_priv_size = qp_conf->mp_session_private->elt_size;
1025                 struct rte_cryptodev_sym_session s = {0};
1026
1027                 pool_priv = rte_mempool_get_priv(qp_conf->mp_session);
1028                 if (!pool_priv || qp_conf->mp_session->private_data_size <
1029                                 sizeof(*pool_priv)) {
1030                         CDEV_LOG_ERR("Invalid mempool\n");
1031                         return -EINVAL;
1032                 }
1033
1034                 s.nb_drivers = pool_priv->nb_drivers;
1035                 s.user_data_sz = pool_priv->user_data_sz;
1036
1037                 if ((rte_cryptodev_sym_get_existing_header_session_size(&s) >
1038                         obj_size) || (s.nb_drivers <= dev->driver_id) ||
1039                         rte_cryptodev_sym_get_private_session_size(dev_id) >
1040                                 obj_priv_size) {
1041                         CDEV_LOG_ERR("Invalid mempool\n");
1042                         return -EINVAL;
1043                 }
1044         }
1045
1046         if (dev->data->dev_started) {
1047                 CDEV_LOG_ERR(
1048                     "device %d must be stopped to allow configuration", dev_id);
1049                 return -EBUSY;
1050         }
1051
1052         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_setup, -ENOTSUP);
1053
1054         return (*dev->dev_ops->queue_pair_setup)(dev, queue_pair_id, qp_conf,
1055                         socket_id);
1056 }
1057
1058
1059 int
1060 rte_cryptodev_stats_get(uint8_t dev_id, struct rte_cryptodev_stats *stats)
1061 {
1062         struct rte_cryptodev *dev;
1063
1064         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1065                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1066                 return -ENODEV;
1067         }
1068
1069         if (stats == NULL) {
1070                 CDEV_LOG_ERR("Invalid stats ptr");
1071                 return -EINVAL;
1072         }
1073
1074         dev = &rte_crypto_devices[dev_id];
1075         memset(stats, 0, sizeof(*stats));
1076
1077         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->stats_get, -ENOTSUP);
1078         (*dev->dev_ops->stats_get)(dev, stats);
1079         return 0;
1080 }
1081
1082 void
1083 rte_cryptodev_stats_reset(uint8_t dev_id)
1084 {
1085         struct rte_cryptodev *dev;
1086
1087         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1088                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1089                 return;
1090         }
1091
1092         dev = &rte_crypto_devices[dev_id];
1093
1094         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->stats_reset);
1095         (*dev->dev_ops->stats_reset)(dev);
1096 }
1097
1098
1099 void
1100 rte_cryptodev_info_get(uint8_t dev_id, struct rte_cryptodev_info *dev_info)
1101 {
1102         struct rte_cryptodev *dev;
1103
1104         if (dev_id >= cryptodev_globals.nb_devs) {
1105                 CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
1106                 return;
1107         }
1108
1109         dev = &rte_crypto_devices[dev_id];
1110
1111         memset(dev_info, 0, sizeof(struct rte_cryptodev_info));
1112
1113         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_infos_get);
1114         (*dev->dev_ops->dev_infos_get)(dev, dev_info);
1115
1116         dev_info->driver_name = dev->device->driver->name;
1117         dev_info->device = dev->device;
1118 }
1119
1120
1121 int
1122 rte_cryptodev_callback_register(uint8_t dev_id,
1123                         enum rte_cryptodev_event_type event,
1124                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
1125 {
1126         struct rte_cryptodev *dev;
1127         struct rte_cryptodev_callback *user_cb;
1128
1129         if (!cb_fn)
1130                 return -EINVAL;
1131
1132         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1133                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1134                 return -EINVAL;
1135         }
1136
1137         dev = &rte_crypto_devices[dev_id];
1138         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1139
1140         TAILQ_FOREACH(user_cb, &(dev->link_intr_cbs), next) {
1141                 if (user_cb->cb_fn == cb_fn &&
1142                         user_cb->cb_arg == cb_arg &&
1143                         user_cb->event == event) {
1144                         break;
1145                 }
1146         }
1147
1148         /* create a new callback. */
1149         if (user_cb == NULL) {
1150                 user_cb = rte_zmalloc("INTR_USER_CALLBACK",
1151                                 sizeof(struct rte_cryptodev_callback), 0);
1152                 if (user_cb != NULL) {
1153                         user_cb->cb_fn = cb_fn;
1154                         user_cb->cb_arg = cb_arg;
1155                         user_cb->event = event;
1156                         TAILQ_INSERT_TAIL(&(dev->link_intr_cbs), user_cb, next);
1157                 }
1158         }
1159
1160         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1161         return (user_cb == NULL) ? -ENOMEM : 0;
1162 }
1163
1164 int
1165 rte_cryptodev_callback_unregister(uint8_t dev_id,
1166                         enum rte_cryptodev_event_type event,
1167                         rte_cryptodev_cb_fn cb_fn, void *cb_arg)
1168 {
1169         int ret;
1170         struct rte_cryptodev *dev;
1171         struct rte_cryptodev_callback *cb, *next;
1172
1173         if (!cb_fn)
1174                 return -EINVAL;
1175
1176         if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
1177                 CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
1178                 return -EINVAL;
1179         }
1180
1181         dev = &rte_crypto_devices[dev_id];
1182         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1183
1184         ret = 0;
1185         for (cb = TAILQ_FIRST(&dev->link_intr_cbs); cb != NULL; cb = next) {
1186
1187                 next = TAILQ_NEXT(cb, next);
1188
1189                 if (cb->cb_fn != cb_fn || cb->event != event ||
1190                                 (cb->cb_arg != (void *)-1 &&
1191                                 cb->cb_arg != cb_arg))
1192                         continue;
1193
1194                 /*
1195                  * if this callback is not executing right now,
1196                  * then remove it.
1197                  */
1198                 if (cb->active == 0) {
1199                         TAILQ_REMOVE(&(dev->link_intr_cbs), cb, next);
1200                         rte_free(cb);
1201                 } else {
1202                         ret = -EAGAIN;
1203                 }
1204         }
1205
1206         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1207         return ret;
1208 }
1209
1210 void
1211 rte_cryptodev_pmd_callback_process(struct rte_cryptodev *dev,
1212         enum rte_cryptodev_event_type event)
1213 {
1214         struct rte_cryptodev_callback *cb_lst;
1215         struct rte_cryptodev_callback dev_cb;
1216
1217         rte_spinlock_lock(&rte_cryptodev_cb_lock);
1218         TAILQ_FOREACH(cb_lst, &(dev->link_intr_cbs), next) {
1219                 if (cb_lst->cb_fn == NULL || cb_lst->event != event)
1220                         continue;
1221                 dev_cb = *cb_lst;
1222                 cb_lst->active = 1;
1223                 rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1224                 dev_cb.cb_fn(dev->data->dev_id, dev_cb.event,
1225                                                 dev_cb.cb_arg);
1226                 rte_spinlock_lock(&rte_cryptodev_cb_lock);
1227                 cb_lst->active = 0;
1228         }
1229         rte_spinlock_unlock(&rte_cryptodev_cb_lock);
1230 }
1231
1232
1233 int
1234 rte_cryptodev_sym_session_init(uint8_t dev_id,
1235                 struct rte_cryptodev_sym_session *sess,
1236                 struct rte_crypto_sym_xform *xforms,
1237                 struct rte_mempool *mp)
1238 {
1239         struct rte_cryptodev *dev;
1240         uint32_t sess_priv_sz = rte_cryptodev_sym_get_private_session_size(
1241                         dev_id);
1242         uint8_t index;
1243         int ret;
1244
1245         dev = rte_cryptodev_pmd_get_dev(dev_id);
1246
1247         if (sess == NULL || xforms == NULL || dev == NULL)
1248                 return -EINVAL;
1249
1250         if (mp->elt_size < sess_priv_sz)
1251                 return -EINVAL;
1252
1253         index = dev->driver_id;
1254         if (index >= sess->nb_drivers)
1255                 return -EINVAL;
1256
1257         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->sym_session_configure, -ENOTSUP);
1258
1259         if (sess->sess_data[index].refcnt == 0) {
1260                 ret = dev->dev_ops->sym_session_configure(dev, xforms,
1261                                                         sess, mp);
1262                 if (ret < 0) {
1263                         CDEV_LOG_ERR(
1264                                 "dev_id %d failed to configure session details",
1265                                 dev_id);
1266                         return ret;
1267                 }
1268         }
1269
1270         sess->sess_data[index].refcnt++;
1271         return 0;
1272 }
1273
1274 int
1275 rte_cryptodev_asym_session_init(uint8_t dev_id,
1276                 struct rte_cryptodev_asym_session *sess,
1277                 struct rte_crypto_asym_xform *xforms,
1278                 struct rte_mempool *mp)
1279 {
1280         struct rte_cryptodev *dev;
1281         uint8_t index;
1282         int ret;
1283
1284         dev = rte_cryptodev_pmd_get_dev(dev_id);
1285
1286         if (sess == NULL || xforms == NULL || dev == NULL)
1287                 return -EINVAL;
1288
1289         index = dev->driver_id;
1290
1291         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->asym_session_configure,
1292                                 -ENOTSUP);
1293
1294         if (sess->sess_private_data[index] == NULL) {
1295                 ret = dev->dev_ops->asym_session_configure(dev,
1296                                                         xforms,
1297                                                         sess, mp);
1298                 if (ret < 0) {
1299                         CDEV_LOG_ERR(
1300                                 "dev_id %d failed to configure session details",
1301                                 dev_id);
1302                         return ret;
1303                 }
1304         }
1305
1306         return 0;
1307 }
1308
1309 struct rte_mempool *
1310 rte_cryptodev_sym_session_pool_create(const char *name, uint32_t nb_elts,
1311         uint32_t elt_size, uint32_t cache_size, uint16_t user_data_size,
1312         int socket_id)
1313 {
1314         struct rte_mempool *mp;
1315         struct rte_cryptodev_sym_session_pool_private_data *pool_priv;
1316         uint32_t obj_sz;
1317
1318         obj_sz = rte_cryptodev_sym_get_header_session_size() + user_data_size;
1319         if (obj_sz > elt_size)
1320                 CDEV_LOG_INFO("elt_size %u is expanded to %u\n", elt_size,
1321                                 obj_sz);
1322         else
1323                 obj_sz = elt_size;
1324
1325         mp = rte_mempool_create(name, nb_elts, obj_sz, cache_size,
1326                         (uint32_t)(sizeof(*pool_priv)),
1327                         NULL, NULL, NULL, NULL,
1328                         socket_id, 0);
1329         if (mp == NULL) {
1330                 CDEV_LOG_ERR("%s(name=%s) failed, rte_errno=%d\n",
1331                         __func__, name, rte_errno);
1332                 return NULL;
1333         }
1334
1335         pool_priv = rte_mempool_get_priv(mp);
1336         if (!pool_priv) {
1337                 CDEV_LOG_ERR("%s(name=%s) failed to get private data\n",
1338                         __func__, name);
1339                 rte_mempool_free(mp);
1340                 return NULL;
1341         }
1342
1343         pool_priv->nb_drivers = nb_drivers;
1344         pool_priv->user_data_sz = user_data_size;
1345
1346         return mp;
1347 }
1348
1349 static unsigned int
1350 rte_cryptodev_sym_session_data_size(struct rte_cryptodev_sym_session *sess)
1351 {
1352         return (sizeof(sess->sess_data[0]) * sess->nb_drivers) +
1353                         sess->user_data_sz;
1354 }
1355
1356 struct rte_cryptodev_sym_session *
1357 rte_cryptodev_sym_session_create(struct rte_mempool *mp)
1358 {
1359         struct rte_cryptodev_sym_session *sess;
1360         struct rte_cryptodev_sym_session_pool_private_data *pool_priv;
1361
1362         if (!mp) {
1363                 CDEV_LOG_ERR("Invalid mempool\n");
1364                 return NULL;
1365         }
1366
1367         pool_priv = rte_mempool_get_priv(mp);
1368
1369         if (!pool_priv || mp->private_data_size < sizeof(*pool_priv)) {
1370                 CDEV_LOG_ERR("Invalid mempool\n");
1371                 return NULL;
1372         }
1373
1374         /* Allocate a session structure from the session pool */
1375         if (rte_mempool_get(mp, (void **)&sess)) {
1376                 CDEV_LOG_ERR("couldn't get object from session mempool");
1377                 return NULL;
1378         }
1379
1380         sess->nb_drivers = pool_priv->nb_drivers;
1381         sess->user_data_sz = pool_priv->user_data_sz;
1382         sess->opaque_data = 0;
1383
1384         /* Clear device session pointer.
1385          * Include the flag indicating presence of user data
1386          */
1387         memset(sess->sess_data, 0,
1388                         rte_cryptodev_sym_session_data_size(sess));
1389
1390         return sess;
1391 }
1392
1393 struct rte_cryptodev_asym_session *
1394 rte_cryptodev_asym_session_create(struct rte_mempool *mp)
1395 {
1396         struct rte_cryptodev_asym_session *sess;
1397
1398         /* Allocate a session structure from the session pool */
1399         if (rte_mempool_get(mp, (void **)&sess)) {
1400                 CDEV_LOG_ERR("couldn't get object from session mempool");
1401                 return NULL;
1402         }
1403
1404         /* Clear device session pointer.
1405          * Include the flag indicating presence of private data
1406          */
1407         memset(sess, 0, (sizeof(void *) * nb_drivers) + sizeof(uint8_t));
1408
1409         return sess;
1410 }
1411
1412 int
1413 rte_cryptodev_sym_session_clear(uint8_t dev_id,
1414                 struct rte_cryptodev_sym_session *sess)
1415 {
1416         struct rte_cryptodev *dev;
1417         uint8_t driver_id;
1418
1419         dev = rte_cryptodev_pmd_get_dev(dev_id);
1420
1421         if (dev == NULL || sess == NULL)
1422                 return -EINVAL;
1423
1424         driver_id = dev->driver_id;
1425         if (sess->sess_data[driver_id].refcnt == 0)
1426                 return 0;
1427         if (--sess->sess_data[driver_id].refcnt != 0)
1428                 return -EBUSY;
1429
1430         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->sym_session_clear, -ENOTSUP);
1431
1432         dev->dev_ops->sym_session_clear(dev, sess);
1433
1434         return 0;
1435 }
1436
1437 int
1438 rte_cryptodev_asym_session_clear(uint8_t dev_id,
1439                 struct rte_cryptodev_asym_session *sess)
1440 {
1441         struct rte_cryptodev *dev;
1442
1443         dev = rte_cryptodev_pmd_get_dev(dev_id);
1444
1445         if (dev == NULL || sess == NULL)
1446                 return -EINVAL;
1447
1448         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->asym_session_clear, -ENOTSUP);
1449
1450         dev->dev_ops->asym_session_clear(dev, sess);
1451
1452         return 0;
1453 }
1454
1455 int
1456 rte_cryptodev_sym_session_free(struct rte_cryptodev_sym_session *sess)
1457 {
1458         uint8_t i;
1459         struct rte_mempool *sess_mp;
1460
1461         if (sess == NULL)
1462                 return -EINVAL;
1463
1464         /* Check that all device private data has been freed */
1465         for (i = 0; i < sess->nb_drivers; i++) {
1466                 if (sess->sess_data[i].refcnt != 0)
1467                         return -EBUSY;
1468         }
1469
1470         /* Return session to mempool */
1471         sess_mp = rte_mempool_from_obj(sess);
1472         rte_mempool_put(sess_mp, sess);
1473
1474         return 0;
1475 }
1476
1477 int
1478 rte_cryptodev_asym_session_free(struct rte_cryptodev_asym_session *sess)
1479 {
1480         uint8_t i;
1481         void *sess_priv;
1482         struct rte_mempool *sess_mp;
1483
1484         if (sess == NULL)
1485                 return -EINVAL;
1486
1487         /* Check that all device private data has been freed */
1488         for (i = 0; i < nb_drivers; i++) {
1489                 sess_priv = get_asym_session_private_data(sess, i);
1490                 if (sess_priv != NULL)
1491                         return -EBUSY;
1492         }
1493
1494         /* Return session to mempool */
1495         sess_mp = rte_mempool_from_obj(sess);
1496         rte_mempool_put(sess_mp, sess);
1497
1498         return 0;
1499 }
1500
1501 unsigned int
1502 rte_cryptodev_sym_get_header_session_size(void)
1503 {
1504         /*
1505          * Header contains pointers to the private data of all registered
1506          * drivers and all necessary information to ensure safely clear
1507          * or free al session.
1508          */
1509         struct rte_cryptodev_sym_session s = {0};
1510
1511         s.nb_drivers = nb_drivers;
1512
1513         return (unsigned int)(sizeof(s) +
1514                         rte_cryptodev_sym_session_data_size(&s));
1515 }
1516
1517 unsigned int
1518 rte_cryptodev_sym_get_existing_header_session_size(
1519                 struct rte_cryptodev_sym_session *sess)
1520 {
1521         if (!sess)
1522                 return 0;
1523         else
1524                 return (unsigned int)(sizeof(*sess) +
1525                                 rte_cryptodev_sym_session_data_size(sess));
1526 }
1527
1528 unsigned int
1529 rte_cryptodev_asym_get_header_session_size(void)
1530 {
1531         /*
1532          * Header contains pointers to the private data
1533          * of all registered drivers, and a flag which
1534          * indicates presence of private data
1535          */
1536         return ((sizeof(void *) * nb_drivers) + sizeof(uint8_t));
1537 }
1538
1539 unsigned int
1540 rte_cryptodev_sym_get_private_session_size(uint8_t dev_id)
1541 {
1542         struct rte_cryptodev *dev;
1543         unsigned int priv_sess_size;
1544
1545         if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
1546                 return 0;
1547
1548         dev = rte_cryptodev_pmd_get_dev(dev_id);
1549
1550         if (*dev->dev_ops->sym_session_get_size == NULL)
1551                 return 0;
1552
1553         priv_sess_size = (*dev->dev_ops->sym_session_get_size)(dev);
1554
1555         return priv_sess_size;
1556 }
1557
1558 unsigned int
1559 rte_cryptodev_asym_get_private_session_size(uint8_t dev_id)
1560 {
1561         struct rte_cryptodev *dev;
1562         unsigned int header_size = sizeof(void *) * nb_drivers;
1563         unsigned int priv_sess_size;
1564
1565         if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
1566                 return 0;
1567
1568         dev = rte_cryptodev_pmd_get_dev(dev_id);
1569
1570         if (*dev->dev_ops->asym_session_get_size == NULL)
1571                 return 0;
1572
1573         priv_sess_size = (*dev->dev_ops->asym_session_get_size)(dev);
1574         if (priv_sess_size < header_size)
1575                 return header_size;
1576
1577         return priv_sess_size;
1578
1579 }
1580
1581 int
1582 rte_cryptodev_sym_session_set_user_data(
1583                                         struct rte_cryptodev_sym_session *sess,
1584                                         void *data,
1585                                         uint16_t size)
1586 {
1587         if (sess == NULL)
1588                 return -EINVAL;
1589
1590         if (sess->user_data_sz < size)
1591                 return -ENOMEM;
1592
1593         rte_memcpy(sess->sess_data + sess->nb_drivers, data, size);
1594         return 0;
1595 }
1596
1597 void *
1598 rte_cryptodev_sym_session_get_user_data(
1599                                         struct rte_cryptodev_sym_session *sess)
1600 {
1601         if (sess == NULL || sess->user_data_sz == 0)
1602                 return NULL;
1603
1604         return (void *)(sess->sess_data + sess->nb_drivers);
1605 }
1606
1607 /** Initialise rte_crypto_op mempool element */
1608 static void
1609 rte_crypto_op_init(struct rte_mempool *mempool,
1610                 void *opaque_arg,
1611                 void *_op_data,
1612                 __rte_unused unsigned i)
1613 {
1614         struct rte_crypto_op *op = _op_data;
1615         enum rte_crypto_op_type type = *(enum rte_crypto_op_type *)opaque_arg;
1616
1617         memset(_op_data, 0, mempool->elt_size);
1618
1619         __rte_crypto_op_reset(op, type);
1620
1621         op->phys_addr = rte_mem_virt2iova(_op_data);
1622         op->mempool = mempool;
1623 }
1624
1625
1626 struct rte_mempool *
1627 rte_crypto_op_pool_create(const char *name, enum rte_crypto_op_type type,
1628                 unsigned nb_elts, unsigned cache_size, uint16_t priv_size,
1629                 int socket_id)
1630 {
1631         struct rte_crypto_op_pool_private *priv;
1632
1633         unsigned elt_size = sizeof(struct rte_crypto_op) +
1634                         priv_size;
1635
1636         if (type == RTE_CRYPTO_OP_TYPE_SYMMETRIC) {
1637                 elt_size += sizeof(struct rte_crypto_sym_op);
1638         } else if (type == RTE_CRYPTO_OP_TYPE_ASYMMETRIC) {
1639                 elt_size += sizeof(struct rte_crypto_asym_op);
1640         } else if (type == RTE_CRYPTO_OP_TYPE_UNDEFINED) {
1641                 elt_size += RTE_MAX(sizeof(struct rte_crypto_sym_op),
1642                                     sizeof(struct rte_crypto_asym_op));
1643         } else {
1644                 CDEV_LOG_ERR("Invalid op_type\n");
1645                 return NULL;
1646         }
1647
1648         /* lookup mempool in case already allocated */
1649         struct rte_mempool *mp = rte_mempool_lookup(name);
1650
1651         if (mp != NULL) {
1652                 priv = (struct rte_crypto_op_pool_private *)
1653                                 rte_mempool_get_priv(mp);
1654
1655                 if (mp->elt_size != elt_size ||
1656                                 mp->cache_size < cache_size ||
1657                                 mp->size < nb_elts ||
1658                                 priv->priv_size <  priv_size) {
1659                         mp = NULL;
1660                         CDEV_LOG_ERR("Mempool %s already exists but with "
1661                                         "incompatible parameters", name);
1662                         return NULL;
1663                 }
1664                 return mp;
1665         }
1666
1667         mp = rte_mempool_create(
1668                         name,
1669                         nb_elts,
1670                         elt_size,
1671                         cache_size,
1672                         sizeof(struct rte_crypto_op_pool_private),
1673                         NULL,
1674                         NULL,
1675                         rte_crypto_op_init,
1676                         &type,
1677                         socket_id,
1678                         0);
1679
1680         if (mp == NULL) {
1681                 CDEV_LOG_ERR("Failed to create mempool %s", name);
1682                 return NULL;
1683         }
1684
1685         priv = (struct rte_crypto_op_pool_private *)
1686                         rte_mempool_get_priv(mp);
1687
1688         priv->priv_size = priv_size;
1689         priv->type = type;
1690
1691         return mp;
1692 }
1693
1694 int
1695 rte_cryptodev_pmd_create_dev_name(char *name, const char *dev_name_prefix)
1696 {
1697         struct rte_cryptodev *dev = NULL;
1698         uint32_t i = 0;
1699
1700         if (name == NULL)
1701                 return -EINVAL;
1702
1703         for (i = 0; i < RTE_CRYPTO_MAX_DEVS; i++) {
1704                 int ret = snprintf(name, RTE_CRYPTODEV_NAME_MAX_LEN,
1705                                 "%s_%u", dev_name_prefix, i);
1706
1707                 if (ret < 0)
1708                         return ret;
1709
1710                 dev = rte_cryptodev_pmd_get_named_dev(name);
1711                 if (!dev)
1712                         return 0;
1713         }
1714
1715         return -1;
1716 }
1717
1718 TAILQ_HEAD(cryptodev_driver_list, cryptodev_driver);
1719
1720 static struct cryptodev_driver_list cryptodev_driver_list =
1721         TAILQ_HEAD_INITIALIZER(cryptodev_driver_list);
1722
1723 int
1724 rte_cryptodev_driver_id_get(const char *name)
1725 {
1726         struct cryptodev_driver *driver;
1727         const char *driver_name;
1728
1729         if (name == NULL) {
1730                 RTE_LOG(DEBUG, CRYPTODEV, "name pointer NULL");
1731                 return -1;
1732         }
1733
1734         TAILQ_FOREACH(driver, &cryptodev_driver_list, next) {
1735                 driver_name = driver->driver->name;
1736                 if (strncmp(driver_name, name, strlen(driver_name) + 1) == 0)
1737                         return driver->id;
1738         }
1739         return -1;
1740 }
1741
1742 const char *
1743 rte_cryptodev_name_get(uint8_t dev_id)
1744 {
1745         struct rte_cryptodev *dev = rte_cryptodev_pmd_get_dev(dev_id);
1746
1747         if (dev == NULL)
1748                 return NULL;
1749
1750         return dev->data->name;
1751 }
1752
1753 const char *
1754 rte_cryptodev_driver_name_get(uint8_t driver_id)
1755 {
1756         struct cryptodev_driver *driver;
1757
1758         TAILQ_FOREACH(driver, &cryptodev_driver_list, next)
1759                 if (driver->id == driver_id)
1760                         return driver->driver->name;
1761         return NULL;
1762 }
1763
1764 uint8_t
1765 rte_cryptodev_allocate_driver(struct cryptodev_driver *crypto_drv,
1766                 const struct rte_driver *drv)
1767 {
1768         crypto_drv->driver = drv;
1769         crypto_drv->id = nb_drivers;
1770
1771         TAILQ_INSERT_TAIL(&cryptodev_driver_list, crypto_drv, next);
1772
1773         return nb_drivers++;
1774 }