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