drivers/crypto/ipsec_mb/pmd_aesni_mb.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2015-2021 Intel Corporation
   3  */
   4
   5 #include "pmd_aesni_mb_priv.h"
   6
   7 /**
   8  * Calculate the authentication pre-computes
   9  *
  10  * @param one_block_hash        Function pointer
  11  *                              to calculate digest on ipad/opad
  12  * @param ipad                  Inner pad output byte array
  13  * @param opad                  Outer pad output byte array
  14  * @param hkey                  Authentication key
  15  * @param hkey_len              Authentication key length
  16  * @param blocksize             Block size of selected hash algo
  17  */
  18 static void
  19 calculate_auth_precomputes(hash_one_block_t one_block_hash,
  20                 uint8_t *ipad, uint8_t *opad,
  21                 const uint8_t *hkey, uint16_t hkey_len,
  22                 uint16_t blocksize)
  23 {
  24         uint32_t i, length;
  25
  26         uint8_t ipad_buf[blocksize] __rte_aligned(16);
  27         uint8_t opad_buf[blocksize] __rte_aligned(16);
  28
  29         /* Setup inner and outer pads */
  30         memset(ipad_buf, HMAC_IPAD_VALUE, blocksize);
  31         memset(opad_buf, HMAC_OPAD_VALUE, blocksize);
  32
  33         /* XOR hash key with inner and outer pads */
  34         length = hkey_len > blocksize ? blocksize : hkey_len;
  35
  36         for (i = 0; i < length; i++) {
  37                 ipad_buf[i] ^= hkey[i];
  38                 opad_buf[i] ^= hkey[i];
  39         }
  40
  41         /* Compute partial hashes */
  42         (*one_block_hash)(ipad_buf, ipad);
  43         (*one_block_hash)(opad_buf, opad);
  44
  45         /* Clean up stack */
  46         memset(ipad_buf, 0, blocksize);
  47         memset(opad_buf, 0, blocksize);
  48 }
  49
  50 static inline int
  51 is_aead_algo(IMB_HASH_ALG hash_alg, IMB_CIPHER_MODE cipher_mode)
  52 {
  53         return (hash_alg == IMB_AUTH_CHACHA20_POLY1305 ||
  54                 hash_alg == IMB_AUTH_AES_CCM ||
  55                 (hash_alg == IMB_AUTH_AES_GMAC &&
  56                 cipher_mode == IMB_CIPHER_GCM));
  57 }
  58
  59 /** Set session authentication parameters */
  60 static int
  61 aesni_mb_set_session_auth_parameters(const IMB_MGR *mb_mgr,
  62                 struct aesni_mb_session *sess,
  63                 const struct rte_crypto_sym_xform *xform)
  64 {
  65         hash_one_block_t hash_oneblock_fn = NULL;
  66         unsigned int key_larger_block_size = 0;
  67         uint8_t hashed_key[HMAC_MAX_BLOCK_SIZE] = { 0 };
  68         uint32_t auth_precompute = 1;
  69
  70         if (xform == NULL) {
  71                 sess->auth.algo = IMB_AUTH_NULL;
  72                 return 0;
  73         }
  74
  75         if (xform->type != RTE_CRYPTO_SYM_XFORM_AUTH) {
  76                 IPSEC_MB_LOG(ERR, "Crypto xform struct not of type auth");
  77                 return -1;
  78         }
  79
  80         /* Set IV parameters */
  81         sess->auth_iv.offset = xform->auth.iv.offset;
  82         sess->auth_iv.length = xform->auth.iv.length;
  83
  84         /* Set the request digest size */
  85         sess->auth.req_digest_len = xform->auth.digest_length;
  86
  87         /* Select auth generate/verify */
  88         sess->auth.operation = xform->auth.op;
  89
  90         /* Set Authentication Parameters */
  91         if (xform->auth.algo == RTE_CRYPTO_AUTH_AES_XCBC_MAC) {
  92                 sess->auth.algo = IMB_AUTH_AES_XCBC;
  93
  94                 uint16_t xcbc_mac_digest_len =
  95                         get_truncated_digest_byte_length(IMB_AUTH_AES_XCBC);
  96                 if (sess->auth.req_digest_len != xcbc_mac_digest_len) {
  97                         IPSEC_MB_LOG(ERR, "Invalid digest size\n");
  98                         return -EINVAL;
  99                 }
 100                 sess->auth.gen_digest_len = sess->auth.req_digest_len;
 101
 102                 IMB_AES_XCBC_KEYEXP(mb_mgr, xform->auth.key.data,
 103                                 sess->auth.xcbc.k1_expanded,
 104                                 sess->auth.xcbc.k2, sess->auth.xcbc.k3);
 105                 return 0;
 106         }
 107
 108         if (xform->auth.algo == RTE_CRYPTO_AUTH_AES_CMAC) {
 109                 uint32_t dust[4*15];
 110
 111                 sess->auth.algo = IMB_AUTH_AES_CMAC;
 112
 113                 uint16_t cmac_digest_len =
 114                                 get_digest_byte_length(IMB_AUTH_AES_CMAC);
 115
 116                 if (sess->auth.req_digest_len > cmac_digest_len) {
 117                         IPSEC_MB_LOG(ERR, "Invalid digest size\n");
 118                         return -EINVAL;
 119                 }
 120                 /*
 121                  * Multi-buffer lib supports digest sizes from 4 to 16 bytes
 122                  * in version 0.50 and sizes of 12 and 16 bytes,
 123                  * in version 0.49.
 124                  * If size requested is different, generate the full digest
 125                  * (16 bytes) in a temporary location and then memcpy
 126                  * the requested number of bytes.
 127                  */
 128                 if (sess->auth.req_digest_len < 4)
 129                         sess->auth.gen_digest_len = cmac_digest_len;
 130                 else
 131                         sess->auth.gen_digest_len = sess->auth.req_digest_len;
 132
 133                 IMB_AES_KEYEXP_128(mb_mgr, xform->auth.key.data,
 134                                 sess->auth.cmac.expkey, dust);
 135                 IMB_AES_CMAC_SUBKEY_GEN_128(mb_mgr, sess->auth.cmac.expkey,
 136                                 sess->auth.cmac.skey1, sess->auth.cmac.skey2);
 137                 return 0;
 138         }
 139
 140         if (xform->auth.algo == RTE_CRYPTO_AUTH_AES_GMAC) {
 141                 if (xform->auth.op == RTE_CRYPTO_AUTH_OP_GENERATE) {
 142                         sess->cipher.direction = IMB_DIR_ENCRYPT;
 143                         sess->chain_order = IMB_ORDER_CIPHER_HASH;
 144                 } else
 145                         sess->cipher.direction = IMB_DIR_DECRYPT;
 146
 147                 sess->auth.algo = IMB_AUTH_AES_GMAC;
 148                 if (sess->auth.req_digest_len >
 149                         get_digest_byte_length(IMB_AUTH_AES_GMAC)) {
 150                         IPSEC_MB_LOG(ERR, "Invalid digest size\n");
 151                         return -EINVAL;
 152                 }
 153                 sess->auth.gen_digest_len = sess->auth.req_digest_len;
 154                 sess->iv.length = xform->auth.iv.length;
 155                 sess->iv.offset = xform->auth.iv.offset;
 156
 157                 switch (xform->auth.key.length) {
 158                 case IMB_KEY_128_BYTES:
 159                         IMB_AES128_GCM_PRE(mb_mgr, xform->auth.key.data,
 160                                 &sess->cipher.gcm_key);
 161                         sess->cipher.key_length_in_bytes = IMB_KEY_128_BYTES;
 162                         break;
 163                 case IMB_KEY_192_BYTES:
 164                         IMB_AES192_GCM_PRE(mb_mgr, xform->auth.key.data,
 165                                 &sess->cipher.gcm_key);
 166                         sess->cipher.key_length_in_bytes = IMB_KEY_192_BYTES;
 167                         break;
 168                 case IMB_KEY_256_BYTES:
 169                         IMB_AES256_GCM_PRE(mb_mgr, xform->auth.key.data,
 170                                 &sess->cipher.gcm_key);
 171                         sess->cipher.key_length_in_bytes = IMB_KEY_256_BYTES;
 172                         break;
 173                 default:
 174                         IPSEC_MB_LOG(ERR, "Invalid authentication key length\n");
 175                         return -EINVAL;
 176                 }
 177
 178                 return 0;
 179         }
 180
 181         if (xform->auth.algo == RTE_CRYPTO_AUTH_ZUC_EIA3) {
 182                 if (xform->auth.key.length == 16) {
 183                         sess->auth.algo = IMB_AUTH_ZUC_EIA3_BITLEN;
 184                 } else if (xform->auth.key.length == 32) {
 185                         sess->auth.algo = IMB_AUTH_ZUC256_EIA3_BITLEN;
 186                 } else {
 187                         IPSEC_MB_LOG(ERR, "Invalid authentication key length\n");
 188                         return -EINVAL;
 189                 }
 190
 191                 uint16_t zuc_eia3_digest_len =
 192                         get_truncated_digest_byte_length(
 193                                                 IMB_AUTH_ZUC_EIA3_BITLEN);
 194                 if (sess->auth.req_digest_len != zuc_eia3_digest_len) {
 195                         IPSEC_MB_LOG(ERR, "Invalid digest size\n");
 196                         return -EINVAL;
 197                 }
 198                 sess->auth.gen_digest_len = sess->auth.req_digest_len;
 199
 200                 memcpy(sess->auth.zuc_auth_key, xform->auth.key.data,
 201                         xform->auth.key.length);
 202                 return 0;
 203         } else if (xform->auth.algo == RTE_CRYPTO_AUTH_SNOW3G_UIA2) {
 204                 sess->auth.algo = IMB_AUTH_SNOW3G_UIA2_BITLEN;
 205                 uint16_t snow3g_uia2_digest_len =
 206                         get_truncated_digest_byte_length(
 207                                                 IMB_AUTH_SNOW3G_UIA2_BITLEN);
 208                 if (sess->auth.req_digest_len != snow3g_uia2_digest_len) {
 209                         IPSEC_MB_LOG(ERR, "Invalid digest size\n");
 210                         return -EINVAL;
 211                 }
 212                 sess->auth.gen_digest_len = sess->auth.req_digest_len;
 213
 214                 IMB_SNOW3G_INIT_KEY_SCHED(mb_mgr, xform->auth.key.data,
 215                                         &sess->auth.pKeySched_snow3g_auth);
 216                 return 0;
 217         } else if (xform->auth.algo == RTE_CRYPTO_AUTH_KASUMI_F9) {
 218                 sess->auth.algo = IMB_AUTH_KASUMI_UIA1;
 219                 uint16_t kasumi_f9_digest_len =
 220                         get_truncated_digest_byte_length(IMB_AUTH_KASUMI_UIA1);
 221                 if (sess->auth.req_digest_len != kasumi_f9_digest_len) {
 222                         IPSEC_MB_LOG(ERR, "Invalid digest size\n");
 223                         return -EINVAL;
 224                 }
 225                 sess->auth.gen_digest_len = sess->auth.req_digest_len;
 226
 227                 IMB_KASUMI_INIT_F9_KEY_SCHED(mb_mgr, xform->auth.key.data,
 228                                         &sess->auth.pKeySched_kasumi_auth);
 229                 return 0;
 230         }
 231
 232         switch (xform->auth.algo) {
 233         case RTE_CRYPTO_AUTH_MD5_HMAC:
 234                 sess->auth.algo = IMB_AUTH_MD5;
 235                 hash_oneblock_fn = mb_mgr->md5_one_block;
 236                 break;
 237         case RTE_CRYPTO_AUTH_SHA1_HMAC:
 238                 sess->auth.algo = IMB_AUTH_HMAC_SHA_1;
 239                 hash_oneblock_fn = mb_mgr->sha1_one_block;
 240                 if (xform->auth.key.length > get_auth_algo_blocksize(
 241                                 IMB_AUTH_HMAC_SHA_1)) {
 242                         IMB_SHA1(mb_mgr,
 243                                 xform->auth.key.data,
 244                                 xform->auth.key.length,
 245                                 hashed_key);
 246                         key_larger_block_size = 1;
 247                 }
 248                 break;
 249         case RTE_CRYPTO_AUTH_SHA1:
 250                 sess->auth.algo = IMB_AUTH_SHA_1;
 251                 auth_precompute = 0;
 252                 break;
 253         case RTE_CRYPTO_AUTH_SHA224_HMAC:
 254                 sess->auth.algo = IMB_AUTH_HMAC_SHA_224;
 255                 hash_oneblock_fn = mb_mgr->sha224_one_block;
 256                 if (xform->auth.key.length > get_auth_algo_blocksize(
 257                                 IMB_AUTH_HMAC_SHA_224)) {
 258                         IMB_SHA224(mb_mgr,
 259                                 xform->auth.key.data,
 260                                 xform->auth.key.length,
 261                                 hashed_key);
 262                         key_larger_block_size = 1;
 263                 }
 264                 break;
 265         case RTE_CRYPTO_AUTH_SHA224:
 266                 sess->auth.algo = IMB_AUTH_SHA_224;
 267                 auth_precompute = 0;
 268                 break;
 269         case RTE_CRYPTO_AUTH_SHA256_HMAC:
 270                 sess->auth.algo = IMB_AUTH_HMAC_SHA_256;
 271                 hash_oneblock_fn = mb_mgr->sha256_one_block;
 272                 if (xform->auth.key.length > get_auth_algo_blocksize(
 273                                 IMB_AUTH_HMAC_SHA_256)) {
 274                         IMB_SHA256(mb_mgr,
 275                                 xform->auth.key.data,
 276                                 xform->auth.key.length,
 277                                 hashed_key);
 278                         key_larger_block_size = 1;
 279                 }
 280                 break;
 281         case RTE_CRYPTO_AUTH_SHA256:
 282                 sess->auth.algo = IMB_AUTH_SHA_256;
 283                 auth_precompute = 0;
 284                 break;
 285         case RTE_CRYPTO_AUTH_SHA384_HMAC:
 286                 sess->auth.algo = IMB_AUTH_HMAC_SHA_384;
 287                 hash_oneblock_fn = mb_mgr->sha384_one_block;
 288                 if (xform->auth.key.length > get_auth_algo_blocksize(
 289                                 IMB_AUTH_HMAC_SHA_384)) {
 290                         IMB_SHA384(mb_mgr,
 291                                 xform->auth.key.data,
 292                                 xform->auth.key.length,
 293                                 hashed_key);
 294                         key_larger_block_size = 1;
 295                 }
 296                 break;
 297         case RTE_CRYPTO_AUTH_SHA384:
 298                 sess->auth.algo = IMB_AUTH_SHA_384;
 299                 auth_precompute = 0;
 300                 break;
 301         case RTE_CRYPTO_AUTH_SHA512_HMAC:
 302                 sess->auth.algo = IMB_AUTH_HMAC_SHA_512;
 303                 hash_oneblock_fn = mb_mgr->sha512_one_block;
 304                 if (xform->auth.key.length > get_auth_algo_blocksize(
 305                                 IMB_AUTH_HMAC_SHA_512)) {
 306                         IMB_SHA512(mb_mgr,
 307                                 xform->auth.key.data,
 308                                 xform->auth.key.length,
 309                                 hashed_key);
 310                         key_larger_block_size = 1;
 311                 }
 312                 break;
 313         case RTE_CRYPTO_AUTH_SHA512:
 314                 sess->auth.algo = IMB_AUTH_SHA_512;
 315                 auth_precompute = 0;
 316                 break;
 317         default:
 318                 IPSEC_MB_LOG(ERR,
 319                         "Unsupported authentication algorithm selection");
 320                 return -ENOTSUP;
 321         }
 322         uint16_t trunc_digest_size =
 323                         get_truncated_digest_byte_length(sess->auth.algo);
 324         uint16_t full_digest_size =
 325                         get_digest_byte_length(sess->auth.algo);
 326
 327         if (sess->auth.req_digest_len > full_digest_size ||
 328                         sess->auth.req_digest_len == 0) {
 329                 IPSEC_MB_LOG(ERR, "Invalid digest size\n");
 330                 return -EINVAL;
 331         }
 332
 333         if (sess->auth.req_digest_len != trunc_digest_size &&
 334                         sess->auth.req_digest_len != full_digest_size)
 335                 sess->auth.gen_digest_len = full_digest_size;
 336         else
 337                 sess->auth.gen_digest_len = sess->auth.req_digest_len;
 338
 339         /* Plain SHA does not require precompute key */
 340         if (auth_precompute == 0)
 341                 return 0;
 342
 343         /* Calculate Authentication precomputes */
 344         if (key_larger_block_size) {
 345                 calculate_auth_precomputes(hash_oneblock_fn,
 346                         sess->auth.pads.inner, sess->auth.pads.outer,
 347                         hashed_key,
 348                         xform->auth.key.length,
 349                         get_auth_algo_blocksize(sess->auth.algo));
 350         } else {
 351                 calculate_auth_precomputes(hash_oneblock_fn,
 352                         sess->auth.pads.inner, sess->auth.pads.outer,
 353                         xform->auth.key.data,
 354                         xform->auth.key.length,
 355                         get_auth_algo_blocksize(sess->auth.algo));
 356         }
 357
 358         return 0;
 359 }
 360
 361 /** Set session cipher parameters */
 362 static int
 363 aesni_mb_set_session_cipher_parameters(const IMB_MGR *mb_mgr,
 364                 struct aesni_mb_session *sess,
 365                 const struct rte_crypto_sym_xform *xform)
 366 {
 367         uint8_t is_aes = 0;
 368         uint8_t is_3DES = 0;
 369         uint8_t is_docsis = 0;
 370         uint8_t is_zuc = 0;
 371         uint8_t is_snow3g = 0;
 372         uint8_t is_kasumi = 0;
 373
 374         if (xform == NULL) {
 375                 sess->cipher.mode = IMB_CIPHER_NULL;
 376                 return 0;
 377         }
 378
 379         if (xform->type != RTE_CRYPTO_SYM_XFORM_CIPHER) {
 380                 IPSEC_MB_LOG(ERR, "Crypto xform struct not of type cipher");
 381                 return -EINVAL;
 382         }
 383
 384         /* Select cipher direction */
 385         switch (xform->cipher.op) {
 386         case RTE_CRYPTO_CIPHER_OP_ENCRYPT:
 387                 sess->cipher.direction = IMB_DIR_ENCRYPT;
 388                 break;
 389         case RTE_CRYPTO_CIPHER_OP_DECRYPT:
 390                 sess->cipher.direction = IMB_DIR_DECRYPT;
 391                 break;
 392         default:
 393                 IPSEC_MB_LOG(ERR, "Invalid cipher operation parameter");
 394                 return -EINVAL;
 395         }
 396
 397         /* Select cipher mode */
 398         switch (xform->cipher.algo) {
 399         case RTE_CRYPTO_CIPHER_AES_CBC:
 400                 sess->cipher.mode = IMB_CIPHER_CBC;
 401                 is_aes = 1;
 402                 break;
 403         case RTE_CRYPTO_CIPHER_AES_CTR:
 404                 sess->cipher.mode = IMB_CIPHER_CNTR;
 405                 is_aes = 1;
 406                 break;
 407         case RTE_CRYPTO_CIPHER_AES_DOCSISBPI:
 408                 sess->cipher.mode = IMB_CIPHER_DOCSIS_SEC_BPI;
 409                 is_docsis = 1;
 410                 break;
 411         case RTE_CRYPTO_CIPHER_DES_CBC:
 412                 sess->cipher.mode = IMB_CIPHER_DES;
 413                 break;
 414         case RTE_CRYPTO_CIPHER_DES_DOCSISBPI:
 415                 sess->cipher.mode = IMB_CIPHER_DOCSIS_DES;
 416                 break;
 417         case RTE_CRYPTO_CIPHER_3DES_CBC:
 418                 sess->cipher.mode = IMB_CIPHER_DES3;
 419                 is_3DES = 1;
 420                 break;
 421         case RTE_CRYPTO_CIPHER_AES_ECB:
 422                 sess->cipher.mode = IMB_CIPHER_ECB;
 423                 is_aes = 1;
 424                 break;
 425         case RTE_CRYPTO_CIPHER_ZUC_EEA3:
 426                 sess->cipher.mode = IMB_CIPHER_ZUC_EEA3;
 427                 is_zuc = 1;
 428                 break;
 429         case RTE_CRYPTO_CIPHER_SNOW3G_UEA2:
 430                 sess->cipher.mode = IMB_CIPHER_SNOW3G_UEA2_BITLEN;
 431                 is_snow3g = 1;
 432                 break;
 433         case RTE_CRYPTO_CIPHER_KASUMI_F8:
 434                 sess->cipher.mode = IMB_CIPHER_KASUMI_UEA1_BITLEN;
 435                 is_kasumi = 1;
 436                 break;
 437         default:
 438                 IPSEC_MB_LOG(ERR, "Unsupported cipher mode parameter");
 439                 return -ENOTSUP;
 440         }
 441
 442         /* Set IV parameters */
 443         sess->iv.offset = xform->cipher.iv.offset;
 444         sess->iv.length = xform->cipher.iv.length;
 445
 446         /* Check key length and choose key expansion function for AES */
 447         if (is_aes) {
 448                 switch (xform->cipher.key.length) {
 449                 case IMB_KEY_128_BYTES:
 450                         sess->cipher.key_length_in_bytes = IMB_KEY_128_BYTES;
 451                         IMB_AES_KEYEXP_128(mb_mgr, xform->cipher.key.data,
 452                                         sess->cipher.expanded_aes_keys.encode,
 453                                         sess->cipher.expanded_aes_keys.decode);
 454                         break;
 455                 case IMB_KEY_192_BYTES:
 456                         sess->cipher.key_length_in_bytes = IMB_KEY_192_BYTES;
 457                         IMB_AES_KEYEXP_192(mb_mgr, xform->cipher.key.data,
 458                                         sess->cipher.expanded_aes_keys.encode,
 459                                         sess->cipher.expanded_aes_keys.decode);
 460                         break;
 461                 case IMB_KEY_256_BYTES:
 462                         sess->cipher.key_length_in_bytes = IMB_KEY_256_BYTES;
 463                         IMB_AES_KEYEXP_256(mb_mgr, xform->cipher.key.data,
 464                                         sess->cipher.expanded_aes_keys.encode,
 465                                         sess->cipher.expanded_aes_keys.decode);
 466                         break;
 467                 default:
 468                         IPSEC_MB_LOG(ERR, "Invalid cipher key length");
 469                         return -EINVAL;
 470                 }
 471         } else if (is_docsis) {
 472                 switch (xform->cipher.key.length) {
 473                 case IMB_KEY_128_BYTES:
 474                         sess->cipher.key_length_in_bytes = IMB_KEY_128_BYTES;
 475                         IMB_AES_KEYEXP_128(mb_mgr, xform->cipher.key.data,
 476                                         sess->cipher.expanded_aes_keys.encode,
 477                                         sess->cipher.expanded_aes_keys.decode);
 478                         break;
 479                 case IMB_KEY_256_BYTES:
 480                         sess->cipher.key_length_in_bytes = IMB_KEY_256_BYTES;
 481                         IMB_AES_KEYEXP_256(mb_mgr, xform->cipher.key.data,
 482                                         sess->cipher.expanded_aes_keys.encode,
 483                                         sess->cipher.expanded_aes_keys.decode);
 484                         break;
 485                 default:
 486                         IPSEC_MB_LOG(ERR, "Invalid cipher key length");
 487                         return -EINVAL;
 488                 }
 489         } else if (is_3DES) {
 490                 uint64_t *keys[3] = {sess->cipher.exp_3des_keys.key[0],
 491                                 sess->cipher.exp_3des_keys.key[1],
 492                                 sess->cipher.exp_3des_keys.key[2]};
 493
 494                 switch (xform->cipher.key.length) {
 495                 case  24:
 496                         IMB_DES_KEYSCHED(mb_mgr, keys[0],
 497                                         xform->cipher.key.data);
 498                         IMB_DES_KEYSCHED(mb_mgr, keys[1],
 499                                         xform->cipher.key.data + 8);
 500                         IMB_DES_KEYSCHED(mb_mgr, keys[2],
 501                                         xform->cipher.key.data + 16);
 502
 503                         /* Initialize keys - 24 bytes: [K1-K2-K3] */
 504                         sess->cipher.exp_3des_keys.ks_ptr[0] = keys[0];
 505                         sess->cipher.exp_3des_keys.ks_ptr[1] = keys[1];
 506                         sess->cipher.exp_3des_keys.ks_ptr[2] = keys[2];
 507                         break;
 508                 case 16:
 509                         IMB_DES_KEYSCHED(mb_mgr, keys[0],
 510                                         xform->cipher.key.data);
 511                         IMB_DES_KEYSCHED(mb_mgr, keys[1],
 512                                         xform->cipher.key.data + 8);
 513                         /* Initialize keys - 16 bytes: [K1=K1,K2=K2,K3=K1] */
 514                         sess->cipher.exp_3des_keys.ks_ptr[0] = keys[0];
 515                         sess->cipher.exp_3des_keys.ks_ptr[1] = keys[1];
 516                         sess->cipher.exp_3des_keys.ks_ptr[2] = keys[0];
 517                         break;
 518                 case 8:
 519                         IMB_DES_KEYSCHED(mb_mgr, keys[0],
 520                                         xform->cipher.key.data);
 521
 522                         /* Initialize keys - 8 bytes: [K1 = K2 = K3] */
 523                         sess->cipher.exp_3des_keys.ks_ptr[0] = keys[0];
 524                         sess->cipher.exp_3des_keys.ks_ptr[1] = keys[0];
 525                         sess->cipher.exp_3des_keys.ks_ptr[2] = keys[0];
 526                         break;
 527                 default:
 528                         IPSEC_MB_LOG(ERR, "Invalid cipher key length");
 529                         return -EINVAL;
 530                 }
 531
 532                 sess->cipher.key_length_in_bytes = 24;
 533         } else if (is_zuc) {
 534                 if (xform->cipher.key.length != 16 &&
 535                                 xform->cipher.key.length != 32) {
 536                         IPSEC_MB_LOG(ERR, "Invalid cipher key length");
 537                         return -EINVAL;
 538                 }
 539                 sess->cipher.key_length_in_bytes = xform->cipher.key.length;
 540                 memcpy(sess->cipher.zuc_cipher_key, xform->cipher.key.data,
 541                         xform->cipher.key.length);
 542         } else if (is_snow3g) {
 543                 if (xform->cipher.key.length != 16) {
 544                         IPSEC_MB_LOG(ERR, "Invalid cipher key length");
 545                         return -EINVAL;
 546                 }
 547                 sess->cipher.key_length_in_bytes = 16;
 548                 IMB_SNOW3G_INIT_KEY_SCHED(mb_mgr, xform->cipher.key.data,
 549                                         &sess->cipher.pKeySched_snow3g_cipher);
 550         } else if (is_kasumi) {
 551                 if (xform->cipher.key.length != 16) {
 552                         IPSEC_MB_LOG(ERR, "Invalid cipher key length");
 553                         return -EINVAL;
 554                 }
 555                 sess->cipher.key_length_in_bytes = 16;
 556                 IMB_KASUMI_INIT_F8_KEY_SCHED(mb_mgr, xform->cipher.key.data,
 557                                         &sess->cipher.pKeySched_kasumi_cipher);
 558         } else {
 559                 if (xform->cipher.key.length != 8) {
 560                         IPSEC_MB_LOG(ERR, "Invalid cipher key length");
 561                         return -EINVAL;
 562                 }
 563                 sess->cipher.key_length_in_bytes = 8;
 564
 565                 IMB_DES_KEYSCHED(mb_mgr,
 566                         (uint64_t *)sess->cipher.expanded_aes_keys.encode,
 567                                 xform->cipher.key.data);
 568                 IMB_DES_KEYSCHED(mb_mgr,
 569                         (uint64_t *)sess->cipher.expanded_aes_keys.decode,
 570                                 xform->cipher.key.data);
 571         }
 572
 573         return 0;
 574 }
 575
 576 static int
 577 aesni_mb_set_session_aead_parameters(const IMB_MGR *mb_mgr,
 578                 struct aesni_mb_session *sess,
 579                 const struct rte_crypto_sym_xform *xform)
 580 {
 581         switch (xform->aead.op) {
 582         case RTE_CRYPTO_AEAD_OP_ENCRYPT:
 583                 sess->cipher.direction = IMB_DIR_ENCRYPT;
 584                 sess->auth.operation = RTE_CRYPTO_AUTH_OP_GENERATE;
 585                 break;
 586         case RTE_CRYPTO_AEAD_OP_DECRYPT:
 587                 sess->cipher.direction = IMB_DIR_DECRYPT;
 588                 sess->auth.operation = RTE_CRYPTO_AUTH_OP_VERIFY;
 589                 break;
 590         default:
 591                 IPSEC_MB_LOG(ERR, "Invalid aead operation parameter");
 592                 return -EINVAL;
 593         }
 594
 595         /* Set IV parameters */
 596         sess->iv.offset = xform->aead.iv.offset;
 597         sess->iv.length = xform->aead.iv.length;
 598
 599         /* Set digest sizes */
 600         sess->auth.req_digest_len = xform->aead.digest_length;
 601         sess->auth.gen_digest_len = sess->auth.req_digest_len;
 602
 603         switch (xform->aead.algo) {
 604         case RTE_CRYPTO_AEAD_AES_CCM:
 605                 sess->cipher.mode = IMB_CIPHER_CCM;
 606                 sess->auth.algo = IMB_AUTH_AES_CCM;
 607
 608                 /* Check key length and choose key expansion function for AES */
 609                 switch (xform->aead.key.length) {
 610                 case IMB_KEY_128_BYTES:
 611                         sess->cipher.key_length_in_bytes = IMB_KEY_128_BYTES;
 612                         IMB_AES_KEYEXP_128(mb_mgr, xform->aead.key.data,
 613                                         sess->cipher.expanded_aes_keys.encode,
 614                                         sess->cipher.expanded_aes_keys.decode);
 615                         break;
 616                 case IMB_KEY_256_BYTES:
 617                         sess->cipher.key_length_in_bytes = IMB_KEY_256_BYTES;
 618                         IMB_AES_KEYEXP_256(mb_mgr, xform->aead.key.data,
 619                                         sess->cipher.expanded_aes_keys.encode,
 620                                         sess->cipher.expanded_aes_keys.decode);
 621                         break;
 622                 default:
 623                         IPSEC_MB_LOG(ERR, "Invalid cipher key length");
 624                         return -EINVAL;
 625                 }
 626
 627                 /* CCM digests must be between 4 and 16 and an even number */
 628                 if (sess->auth.req_digest_len < AES_CCM_DIGEST_MIN_LEN ||
 629                         sess->auth.req_digest_len > AES_CCM_DIGEST_MAX_LEN ||
 630                         (sess->auth.req_digest_len & 1) == 1) {
 631                         IPSEC_MB_LOG(ERR, "Invalid digest size\n");
 632                         return -EINVAL;
 633                 }
 634                 break;
 635
 636         case RTE_CRYPTO_AEAD_AES_GCM:
 637                 sess->cipher.mode = IMB_CIPHER_GCM;
 638                 sess->auth.algo = IMB_AUTH_AES_GMAC;
 639
 640                 switch (xform->aead.key.length) {
 641                 case IMB_KEY_128_BYTES:
 642                         sess->cipher.key_length_in_bytes = IMB_KEY_128_BYTES;
 643                         IMB_AES128_GCM_PRE(mb_mgr, xform->aead.key.data,
 644                                 &sess->cipher.gcm_key);
 645                         break;
 646                 case IMB_KEY_192_BYTES:
 647                         sess->cipher.key_length_in_bytes = IMB_KEY_192_BYTES;
 648                         IMB_AES192_GCM_PRE(mb_mgr, xform->aead.key.data,
 649                                 &sess->cipher.gcm_key);
 650                         break;
 651                 case IMB_KEY_256_BYTES:
 652                         sess->cipher.key_length_in_bytes = IMB_KEY_256_BYTES;
 653                         IMB_AES256_GCM_PRE(mb_mgr, xform->aead.key.data,
 654                                 &sess->cipher.gcm_key);
 655                         break;
 656                 default:
 657                         IPSEC_MB_LOG(ERR, "Invalid cipher key length");
 658                         return -EINVAL;
 659                 }
 660
 661                 /* GCM digest size must be between 1 and 16 */
 662                 if (sess->auth.req_digest_len == 0 ||
 663                                 sess->auth.req_digest_len > 16) {
 664                         IPSEC_MB_LOG(ERR, "Invalid digest size\n");
 665                         return -EINVAL;
 666                 }
 667                 break;
 668
 669         case RTE_CRYPTO_AEAD_CHACHA20_POLY1305:
 670                 sess->cipher.mode = IMB_CIPHER_CHACHA20_POLY1305;
 671                 sess->auth.algo = IMB_AUTH_CHACHA20_POLY1305;
 672
 673                 if (xform->aead.key.length != 32) {
 674                         IPSEC_MB_LOG(ERR, "Invalid key length");
 675                         return -EINVAL;
 676                 }
 677                 sess->cipher.key_length_in_bytes = 32;
 678                 memcpy(sess->cipher.expanded_aes_keys.encode,
 679                         xform->aead.key.data, 32);
 680                 if (sess->auth.req_digest_len != 16) {
 681                         IPSEC_MB_LOG(ERR, "Invalid digest size\n");
 682                         return -EINVAL;
 683                 }
 684                 break;
 685         default:
 686                 IPSEC_MB_LOG(ERR, "Unsupported aead mode parameter");
 687                 return -ENOTSUP;
 688         }
 689
 690         return 0;
 691 }
 692
 693 /** Configure a aesni multi-buffer session from a crypto xform chain */
 694 static int
 695 aesni_mb_session_configure(IMB_MGR *mb_mgr,
 696                 void *priv_sess,
 697                 const struct rte_crypto_sym_xform *xform)
 698 {
 699         const struct rte_crypto_sym_xform *auth_xform = NULL;
 700         const struct rte_crypto_sym_xform *cipher_xform = NULL;
 701         const struct rte_crypto_sym_xform *aead_xform = NULL;
 702         enum ipsec_mb_operation mode;
 703         struct aesni_mb_session *sess = (struct aesni_mb_session *) priv_sess;
 704         int ret;
 705
 706         ret = ipsec_mb_parse_xform(xform, &mode, &auth_xform,
 707                                 &cipher_xform, &aead_xform);
 708         if (ret)
 709                 return ret;
 710
 711         /* Select Crypto operation - hash then cipher / cipher then hash */
 712         switch (mode) {
 713         case IPSEC_MB_OP_HASH_VERIFY_THEN_DECRYPT:
 714                 sess->chain_order = IMB_ORDER_HASH_CIPHER;
 715                 break;
 716         case IPSEC_MB_OP_ENCRYPT_THEN_HASH_GEN:
 717         case IPSEC_MB_OP_DECRYPT_THEN_HASH_VERIFY:
 718                 sess->chain_order = IMB_ORDER_CIPHER_HASH;
 719                 break;
 720         case IPSEC_MB_OP_HASH_GEN_ONLY:
 721         case IPSEC_MB_OP_HASH_VERIFY_ONLY:
 722         case IPSEC_MB_OP_HASH_GEN_THEN_ENCRYPT:
 723                 sess->chain_order = IMB_ORDER_HASH_CIPHER;
 724                 break;
 725         /*
 726          * Multi buffer library operates only at two modes,
 727          * IMB_ORDER_CIPHER_HASH and IMB_ORDER_HASH_CIPHER.
 728          * When doing ciphering only, chain order depends
 729          * on cipher operation: encryption is always
 730          * the first operation and decryption the last one.
 731          */
 732         case IPSEC_MB_OP_ENCRYPT_ONLY:
 733                 sess->chain_order = IMB_ORDER_CIPHER_HASH;
 734                 break;
 735         case IPSEC_MB_OP_DECRYPT_ONLY:
 736                 sess->chain_order = IMB_ORDER_HASH_CIPHER;
 737                 break;
 738         case IPSEC_MB_OP_AEAD_AUTHENTICATED_ENCRYPT:
 739                 sess->chain_order = IMB_ORDER_CIPHER_HASH;
 740                 sess->aead.aad_len = xform->aead.aad_length;
 741                 break;
 742         case IPSEC_MB_OP_AEAD_AUTHENTICATED_DECRYPT:
 743                 sess->chain_order = IMB_ORDER_HASH_CIPHER;
 744                 sess->aead.aad_len = xform->aead.aad_length;
 745                 break;
 746         case IPSEC_MB_OP_NOT_SUPPORTED:
 747         default:
 748                 IPSEC_MB_LOG(ERR,
 749                         "Unsupported operation chain order parameter");
 750                 return -ENOTSUP;
 751         }
 752
 753         /* Default IV length = 0 */
 754         sess->iv.length = 0;
 755         sess->auth_iv.length = 0;
 756
 757         ret = aesni_mb_set_session_auth_parameters(mb_mgr, sess, auth_xform);
 758         if (ret != 0) {
 759                 IPSEC_MB_LOG(ERR,
 760                         "Invalid/unsupported authentication parameters");
 761                 return ret;
 762         }
 763
 764         ret = aesni_mb_set_session_cipher_parameters(mb_mgr, sess,
 765                         cipher_xform);
 766         if (ret != 0) {
 767                 IPSEC_MB_LOG(ERR, "Invalid/unsupported cipher parameters");
 768                 return ret;
 769         }
 770
 771         if (aead_xform) {
 772                 ret = aesni_mb_set_session_aead_parameters(mb_mgr, sess,
 773                                 aead_xform);
 774                 if (ret != 0) {
 775                         IPSEC_MB_LOG(ERR,
 776                                 "Invalid/unsupported aead parameters");
 777                         return ret;
 778                 }
 779         }
 780
 781         return 0;
 782 }
 783
 784 #ifdef AESNI_MB_DOCSIS_SEC_ENABLED
 785 /** Check DOCSIS security session configuration is valid */
 786 static int
 787 check_docsis_sec_session(struct rte_security_session_conf *conf)
 788 {
 789         struct rte_crypto_sym_xform *crypto_sym = conf->crypto_xform;
 790         struct rte_security_docsis_xform *docsis = &conf->docsis;
 791
 792         /* Downlink: CRC generate -> Cipher encrypt */
 793         if (docsis->direction == RTE_SECURITY_DOCSIS_DOWNLINK) {
 794
 795                 if (crypto_sym != NULL &&
 796                     crypto_sym->type == RTE_CRYPTO_SYM_XFORM_CIPHER &&
 797                     crypto_sym->cipher.op == RTE_CRYPTO_CIPHER_OP_ENCRYPT &&
 798                     crypto_sym->cipher.algo ==
 799                                         RTE_CRYPTO_CIPHER_AES_DOCSISBPI &&
 800                     (crypto_sym->cipher.key.length == IMB_KEY_128_BYTES ||
 801                      crypto_sym->cipher.key.length == IMB_KEY_256_BYTES) &&
 802                     crypto_sym->cipher.iv.length == IMB_AES_BLOCK_SIZE &&
 803                     crypto_sym->next == NULL) {
 804                         return 0;
 805                 }
 806         /* Uplink: Cipher decrypt -> CRC verify */
 807         } else if (docsis->direction == RTE_SECURITY_DOCSIS_UPLINK) {
 808
 809                 if (crypto_sym != NULL &&
 810                     crypto_sym->type == RTE_CRYPTO_SYM_XFORM_CIPHER &&
 811                     crypto_sym->cipher.op == RTE_CRYPTO_CIPHER_OP_DECRYPT &&
 812                     crypto_sym->cipher.algo ==
 813                                         RTE_CRYPTO_CIPHER_AES_DOCSISBPI &&
 814                     (crypto_sym->cipher.key.length == IMB_KEY_128_BYTES ||
 815                      crypto_sym->cipher.key.length == IMB_KEY_256_BYTES) &&
 816                     crypto_sym->cipher.iv.length == IMB_AES_BLOCK_SIZE &&
 817                     crypto_sym->next == NULL) {
 818                         return 0;
 819                 }
 820         }
 821
 822         return -EINVAL;
 823 }
 824
 825 /** Set DOCSIS security session auth (CRC) parameters */
 826 static int
 827 aesni_mb_set_docsis_sec_session_auth_parameters(struct aesni_mb_session *sess,
 828                 struct rte_security_docsis_xform *xform)
 829 {
 830         if (xform == NULL) {
 831                 IPSEC_MB_LOG(ERR, "Invalid DOCSIS xform");
 832                 return -EINVAL;
 833         }
 834
 835         /* Select CRC generate/verify */
 836         if (xform->direction == RTE_SECURITY_DOCSIS_UPLINK) {
 837                 sess->auth.algo = IMB_AUTH_DOCSIS_CRC32;
 838                 sess->auth.operation = RTE_CRYPTO_AUTH_OP_VERIFY;
 839         } else if (xform->direction == RTE_SECURITY_DOCSIS_DOWNLINK) {
 840                 sess->auth.algo = IMB_AUTH_DOCSIS_CRC32;
 841                 sess->auth.operation = RTE_CRYPTO_AUTH_OP_GENERATE;
 842         } else {
 843                 IPSEC_MB_LOG(ERR, "Unsupported DOCSIS direction");
 844                 return -ENOTSUP;
 845         }
 846
 847         sess->auth.req_digest_len = RTE_ETHER_CRC_LEN;
 848         sess->auth.gen_digest_len = RTE_ETHER_CRC_LEN;
 849
 850         return 0;
 851 }
 852
 853 /**
 854  * Parse DOCSIS security session configuration and set private session
 855  * parameters
 856  */
 857 static int
 858 aesni_mb_set_docsis_sec_session_parameters(
 859                 __rte_unused struct rte_cryptodev *dev,
 860                 struct rte_security_session_conf *conf,
 861                 void *sess)
 862 {
 863         IMB_MGR  *mb_mgr = alloc_init_mb_mgr();
 864         struct rte_security_docsis_xform *docsis_xform;
 865         struct rte_crypto_sym_xform *cipher_xform;
 866         struct aesni_mb_session *ipsec_sess = sess;
 867         int ret = 0;
 868
 869         if (!mb_mgr)
 870                 return -ENOMEM;
 871
 872         ret = check_docsis_sec_session(conf);
 873         if (ret) {
 874                 IPSEC_MB_LOG(ERR, "Unsupported DOCSIS security configuration");
 875                 goto error_exit;
 876         }
 877
 878         switch (conf->docsis.direction) {
 879         case RTE_SECURITY_DOCSIS_UPLINK:
 880                 ipsec_sess->chain_order = IMB_ORDER_CIPHER_HASH;
 881                 docsis_xform = &conf->docsis;
 882                 cipher_xform = conf->crypto_xform;
 883                 break;
 884         case RTE_SECURITY_DOCSIS_DOWNLINK:
 885                 ipsec_sess->chain_order = IMB_ORDER_HASH_CIPHER;
 886                 cipher_xform = conf->crypto_xform;
 887                 docsis_xform = &conf->docsis;
 888                 break;
 889         default:
 890                 IPSEC_MB_LOG(ERR, "Unsupported DOCSIS security configuration");
 891                 ret = -EINVAL;
 892                 goto error_exit;
 893         }
 894
 895         /* Default IV length = 0 */
 896         ipsec_sess->iv.length = 0;
 897
 898         ret = aesni_mb_set_docsis_sec_session_auth_parameters(ipsec_sess,
 899                         docsis_xform);
 900         if (ret != 0) {
 901                 IPSEC_MB_LOG(ERR, "Invalid/unsupported DOCSIS parameters");
 902                 goto error_exit;
 903         }
 904
 905         ret = aesni_mb_set_session_cipher_parameters(mb_mgr,
 906                         ipsec_sess, cipher_xform);
 907
 908         if (ret != 0) {
 909                 IPSEC_MB_LOG(ERR, "Invalid/unsupported cipher parameters");
 910                 goto error_exit;
 911         }
 912
 913 error_exit:
 914         free_mb_mgr(mb_mgr);
 915         return ret;
 916 }
 917 #endif
 918
 919 static inline uint64_t
 920 auth_start_offset(struct rte_crypto_op *op, struct aesni_mb_session *session,
 921                 uint32_t oop)
 922 {
 923         struct rte_mbuf *m_src, *m_dst;
 924         uint8_t *p_src, *p_dst;
 925         uintptr_t u_src, u_dst;
 926         uint32_t cipher_end, auth_end;
 927
 928         /* Only cipher then hash needs special calculation. */
 929         if (!oop || session->chain_order != IMB_ORDER_CIPHER_HASH)
 930                 return op->sym->auth.data.offset;
 931
 932         m_src = op->sym->m_src;
 933         m_dst = op->sym->m_dst;
 934
 935         p_src = rte_pktmbuf_mtod(m_src, uint8_t *);
 936         p_dst = rte_pktmbuf_mtod(m_dst, uint8_t *);
 937         u_src = (uintptr_t)p_src;
 938         u_dst = (uintptr_t)p_dst + op->sym->auth.data.offset;
 939
 940         /**
 941          * Copy the content between cipher offset and auth offset for generating
 942          * correct digest.
 943          */
 944         if (op->sym->cipher.data.offset > op->sym->auth.data.offset)
 945                 memcpy(p_dst + op->sym->auth.data.offset,
 946                                 p_src + op->sym->auth.data.offset,
 947                                 op->sym->cipher.data.offset -
 948                                 op->sym->auth.data.offset);
 949
 950         /**
 951          * Copy the content between (cipher offset + length) and (auth offset +
 952          * length) for generating correct digest
 953          */
 954         cipher_end = op->sym->cipher.data.offset + op->sym->cipher.data.length;
 955         auth_end = op->sym->auth.data.offset + op->sym->auth.data.length;
 956         if (cipher_end < auth_end)
 957                 memcpy(p_dst + cipher_end, p_src + cipher_end,
 958                                 auth_end - cipher_end);
 959
 960         /**
 961          * Since intel-ipsec-mb only supports positive values,
 962          * we need to deduct the correct offset between src and dst.
 963          */
 964
 965         return u_src < u_dst ? (u_dst - u_src) :
 966                         (UINT64_MAX - u_src + u_dst + 1);
 967 }
 968
 969 static inline void
 970 set_cpu_mb_job_params(IMB_JOB *job, struct aesni_mb_session *session,
 971                 union rte_crypto_sym_ofs sofs, void *buf, uint32_t len,
 972                 struct rte_crypto_va_iova_ptr *iv,
 973                 struct rte_crypto_va_iova_ptr *aad, void *digest, void *udata)
 974 {
 975         /* Set crypto operation */
 976         job->chain_order = session->chain_order;
 977
 978         /* Set cipher parameters */
 979         job->cipher_direction = session->cipher.direction;
 980         job->cipher_mode = session->cipher.mode;
 981
 982         job->key_len_in_bytes = session->cipher.key_length_in_bytes;
 983
 984         /* Set authentication parameters */
 985         job->hash_alg = session->auth.algo;
 986         job->iv = iv->va;
 987
 988         switch (job->hash_alg) {
 989         case IMB_AUTH_AES_XCBC:
 990                 job->u.XCBC._k1_expanded = session->auth.xcbc.k1_expanded;
 991                 job->u.XCBC._k2 = session->auth.xcbc.k2;
 992                 job->u.XCBC._k3 = session->auth.xcbc.k3;
 993
 994                 job->enc_keys = session->cipher.expanded_aes_keys.encode;
 995                 job->dec_keys = session->cipher.expanded_aes_keys.decode;
 996                 break;
 997
 998         case IMB_AUTH_AES_CCM:
 999                 job->u.CCM.aad = (uint8_t *)aad->va + 18;
1000                 job->u.CCM.aad_len_in_bytes = session->aead.aad_len;
1001                 job->enc_keys = session->cipher.expanded_aes_keys.encode;
1002                 job->dec_keys = session->cipher.expanded_aes_keys.decode;
1003                 job->iv++;
1004                 break;
1005
1006         case IMB_AUTH_AES_CMAC:
1007                 job->u.CMAC._key_expanded = session->auth.cmac.expkey;
1008                 job->u.CMAC._skey1 = session->auth.cmac.skey1;
1009                 job->u.CMAC._skey2 = session->auth.cmac.skey2;
1010                 job->enc_keys = session->cipher.expanded_aes_keys.encode;
1011                 job->dec_keys = session->cipher.expanded_aes_keys.decode;
1012                 break;
1013
1014         case IMB_AUTH_AES_GMAC:
1015                 if (session->cipher.mode == IMB_CIPHER_GCM) {
1016                         job->u.GCM.aad = aad->va;
1017                         job->u.GCM.aad_len_in_bytes = session->aead.aad_len;
1018                 } else {
1019                         /* For GMAC */
1020                         job->u.GCM.aad = buf;
1021                         job->u.GCM.aad_len_in_bytes = len;
1022                         job->cipher_mode = IMB_CIPHER_GCM;
1023                 }
1024                 job->enc_keys = &session->cipher.gcm_key;
1025                 job->dec_keys = &session->cipher.gcm_key;
1026                 break;
1027
1028         case IMB_AUTH_CHACHA20_POLY1305:
1029                 job->u.CHACHA20_POLY1305.aad = aad->va;
1030                 job->u.CHACHA20_POLY1305.aad_len_in_bytes =
1031                         session->aead.aad_len;
1032                 job->enc_keys = session->cipher.expanded_aes_keys.encode;
1033                 job->dec_keys = session->cipher.expanded_aes_keys.encode;
1034                 break;
1035         default:
1036                 job->u.HMAC._hashed_auth_key_xor_ipad =
1037                                 session->auth.pads.inner;
1038                 job->u.HMAC._hashed_auth_key_xor_opad =
1039                                 session->auth.pads.outer;
1040
1041                 if (job->cipher_mode == IMB_CIPHER_DES3) {
1042                         job->enc_keys = session->cipher.exp_3des_keys.ks_ptr;
1043                         job->dec_keys = session->cipher.exp_3des_keys.ks_ptr;
1044                 } else {
1045                         job->enc_keys = session->cipher.expanded_aes_keys.encode;
1046                         job->dec_keys = session->cipher.expanded_aes_keys.decode;
1047                 }
1048         }
1049
1050         /*
1051          * Multi-buffer library current only support returning a truncated
1052          * digest length as specified in the relevant IPsec RFCs
1053          */
1054
1055         /* Set digest location and length */
1056         job->auth_tag_output = digest;
1057         job->auth_tag_output_len_in_bytes = session->auth.gen_digest_len;
1058
1059         /* Set IV parameters */
1060         job->iv_len_in_bytes = session->iv.length;
1061
1062         /* Data Parameters */
1063         job->src = buf;
1064         job->dst = (uint8_t *)buf + sofs.ofs.cipher.head;
1065         job->cipher_start_src_offset_in_bytes = sofs.ofs.cipher.head;
1066         job->hash_start_src_offset_in_bytes = sofs.ofs.auth.head;
1067         if (job->hash_alg == IMB_AUTH_AES_GMAC &&
1068                         session->cipher.mode != IMB_CIPHER_GCM) {
1069                 job->msg_len_to_hash_in_bytes = 0;
1070                 job->msg_len_to_cipher_in_bytes = 0;
1071         } else {
1072                 job->msg_len_to_hash_in_bytes = len - sofs.ofs.auth.head -
1073                         sofs.ofs.auth.tail;
1074                 job->msg_len_to_cipher_in_bytes = len - sofs.ofs.cipher.head -
1075                         sofs.ofs.cipher.tail;
1076         }
1077
1078         job->user_data = udata;
1079 }
1080
1081 /**
1082  * Process a crypto operation and complete a IMB_JOB job structure for
1083  * submission to the multi buffer library for processing.
1084  *
1085  * @param       qp              queue pair
1086  * @param       job             IMB_JOB structure to fill
1087  * @param       op              crypto op to process
1088  * @param       digest_idx      ID for digest to use
1089  *
1090  * @return
1091  * - 0 on success, the IMB_JOB will be filled
1092  * - -1 if invalid session, IMB_JOB will not be filled
1093  */
1094 static inline int
1095 set_mb_job_params(IMB_JOB *job, struct ipsec_mb_qp *qp,
1096                 struct rte_crypto_op *op, uint8_t *digest_idx)
1097 {
1098         struct rte_mbuf *m_src = op->sym->m_src, *m_dst;
1099         struct aesni_mb_qp_data *qp_data = ipsec_mb_get_qp_private_data(qp);
1100         struct aesni_mb_session *session;
1101         uint32_t m_offset, oop;
1102
1103         session = ipsec_mb_get_session_private(qp, op);
1104         if (session == NULL) {
1105                 op->status = RTE_CRYPTO_OP_STATUS_INVALID_SESSION;
1106                 return -1;
1107         }
1108
1109         /* Set crypto operation */
1110         job->chain_order = session->chain_order;
1111
1112         /* Set cipher parameters */
1113         job->cipher_direction = session->cipher.direction;
1114         job->cipher_mode = session->cipher.mode;
1115
1116         job->key_len_in_bytes = session->cipher.key_length_in_bytes;
1117
1118         /* Set authentication parameters */
1119         job->hash_alg = session->auth.algo;
1120
1121         const int aead = is_aead_algo(job->hash_alg, job->cipher_mode);
1122
1123         switch (job->hash_alg) {
1124         case IMB_AUTH_AES_XCBC:
1125                 job->u.XCBC._k1_expanded = session->auth.xcbc.k1_expanded;
1126                 job->u.XCBC._k2 = session->auth.xcbc.k2;
1127                 job->u.XCBC._k3 = session->auth.xcbc.k3;
1128
1129                 job->enc_keys = session->cipher.expanded_aes_keys.encode;
1130                 job->dec_keys = session->cipher.expanded_aes_keys.decode;
1131                 break;
1132
1133         case IMB_AUTH_AES_CCM:
1134                 job->u.CCM.aad = op->sym->aead.aad.data + 18;
1135                 job->u.CCM.aad_len_in_bytes = session->aead.aad_len;
1136                 job->enc_keys = session->cipher.expanded_aes_keys.encode;
1137                 job->dec_keys = session->cipher.expanded_aes_keys.decode;
1138                 break;
1139
1140         case IMB_AUTH_AES_CMAC:
1141                 job->u.CMAC._key_expanded = session->auth.cmac.expkey;
1142                 job->u.CMAC._skey1 = session->auth.cmac.skey1;
1143                 job->u.CMAC._skey2 = session->auth.cmac.skey2;
1144                 job->enc_keys = session->cipher.expanded_aes_keys.encode;
1145                 job->dec_keys = session->cipher.expanded_aes_keys.decode;
1146                 break;
1147
1148         case IMB_AUTH_AES_GMAC:
1149                 if (session->cipher.mode == IMB_CIPHER_GCM) {
1150                         job->u.GCM.aad = op->sym->aead.aad.data;
1151                         job->u.GCM.aad_len_in_bytes = session->aead.aad_len;
1152                 } else {
1153                         /* For GMAC */
1154                         job->u.GCM.aad = rte_pktmbuf_mtod_offset(m_src,
1155                                         uint8_t *, op->sym->auth.data.offset);
1156                         job->u.GCM.aad_len_in_bytes = op->sym->auth.data.length;
1157                         job->cipher_mode = IMB_CIPHER_GCM;
1158                 }
1159                 job->enc_keys = &session->cipher.gcm_key;
1160                 job->dec_keys = &session->cipher.gcm_key;
1161                 break;
1162         case IMB_AUTH_ZUC_EIA3_BITLEN:
1163         case IMB_AUTH_ZUC256_EIA3_BITLEN:
1164                 job->u.ZUC_EIA3._key = session->auth.zuc_auth_key;
1165                 job->u.ZUC_EIA3._iv = rte_crypto_op_ctod_offset(op, uint8_t *,
1166                                                 session->auth_iv.offset);
1167                 break;
1168         case IMB_AUTH_SNOW3G_UIA2_BITLEN:
1169                 job->u.SNOW3G_UIA2._key = (void *)
1170                         &session->auth.pKeySched_snow3g_auth;
1171                 job->u.SNOW3G_UIA2._iv =
1172                         rte_crypto_op_ctod_offset(op, uint8_t *,
1173                                                 session->auth_iv.offset);
1174                 break;
1175         case IMB_AUTH_KASUMI_UIA1:
1176                 job->u.KASUMI_UIA1._key = (void *)
1177                         &session->auth.pKeySched_kasumi_auth;
1178                 break;
1179         case IMB_AUTH_CHACHA20_POLY1305:
1180                 job->u.CHACHA20_POLY1305.aad = op->sym->aead.aad.data;
1181                 job->u.CHACHA20_POLY1305.aad_len_in_bytes =
1182                         session->aead.aad_len;
1183                 job->enc_keys = session->cipher.expanded_aes_keys.encode;
1184                 job->dec_keys = session->cipher.expanded_aes_keys.encode;
1185                 break;
1186         default:
1187                 job->u.HMAC._hashed_auth_key_xor_ipad =
1188                         session->auth.pads.inner;
1189                 job->u.HMAC._hashed_auth_key_xor_opad =
1190                         session->auth.pads.outer;
1191
1192                 if (job->cipher_mode == IMB_CIPHER_DES3) {
1193                         job->enc_keys = session->cipher.exp_3des_keys.ks_ptr;
1194                         job->dec_keys = session->cipher.exp_3des_keys.ks_ptr;
1195                 } else {
1196                         job->enc_keys = session->cipher.expanded_aes_keys.encode;
1197                         job->dec_keys = session->cipher.expanded_aes_keys.decode;
1198                 }
1199         }
1200
1201         if (aead)
1202                 m_offset = op->sym->aead.data.offset;
1203         else
1204                 m_offset = op->sym->cipher.data.offset;
1205
1206         if (job->cipher_mode == IMB_CIPHER_ZUC_EEA3) {
1207                 job->enc_keys = session->cipher.zuc_cipher_key;
1208                 job->dec_keys = session->cipher.zuc_cipher_key;
1209         } else if (job->cipher_mode == IMB_CIPHER_SNOW3G_UEA2_BITLEN) {
1210                 job->enc_keys = &session->cipher.pKeySched_snow3g_cipher;
1211                 m_offset = 0;
1212         } else if (job->cipher_mode == IMB_CIPHER_KASUMI_UEA1_BITLEN) {
1213                 job->enc_keys = &session->cipher.pKeySched_kasumi_cipher;
1214                 m_offset = 0;
1215         }
1216
1217         if (!op->sym->m_dst) {
1218                 /* in-place operation */
1219                 m_dst = m_src;
1220                 oop = 0;
1221         } else if (op->sym->m_dst == op->sym->m_src) {
1222                 /* in-place operation */
1223                 m_dst = m_src;
1224                 oop = 0;
1225         } else {
1226                 /* out-of-place operation */
1227                 m_dst = op->sym->m_dst;
1228                 oop = 1;
1229         }
1230
1231         /* Set digest output location */
1232         if (job->hash_alg != IMB_AUTH_NULL &&
1233                         session->auth.operation == RTE_CRYPTO_AUTH_OP_VERIFY) {
1234                 job->auth_tag_output = qp_data->temp_digests[*digest_idx];
1235                 *digest_idx = (*digest_idx + 1) % IMB_MAX_JOBS;
1236         } else {
1237                 if (aead)
1238                         job->auth_tag_output = op->sym->aead.digest.data;
1239                 else
1240                         job->auth_tag_output = op->sym->auth.digest.data;
1241
1242                 if (session->auth.req_digest_len !=
1243                                 session->auth.gen_digest_len) {
1244                         job->auth_tag_output =
1245                                 qp_data->temp_digests[*digest_idx];
1246                         *digest_idx = (*digest_idx + 1) % IMB_MAX_JOBS;
1247                 }
1248         }
1249         /*
1250          * Multi-buffer library current only support returning a truncated
1251          * digest length as specified in the relevant IPsec RFCs
1252          */
1253
1254         /* Set digest length */
1255         job->auth_tag_output_len_in_bytes = session->auth.gen_digest_len;
1256
1257         /* Set IV parameters */
1258         job->iv_len_in_bytes = session->iv.length;
1259
1260         /* Data Parameters */
1261         job->src = rte_pktmbuf_mtod(m_src, uint8_t *);
1262         job->dst = rte_pktmbuf_mtod_offset(m_dst, uint8_t *, m_offset);
1263
1264         switch (job->hash_alg) {
1265         case IMB_AUTH_AES_CCM:
1266                 job->cipher_start_src_offset_in_bytes =
1267                                 op->sym->aead.data.offset;
1268                 job->msg_len_to_cipher_in_bytes = op->sym->aead.data.length;
1269                 job->hash_start_src_offset_in_bytes = op->sym->aead.data.offset;
1270                 job->msg_len_to_hash_in_bytes = op->sym->aead.data.length;
1271
1272                 job->iv = rte_crypto_op_ctod_offset(op, uint8_t *,
1273                         session->iv.offset + 1);
1274                 break;
1275
1276         case IMB_AUTH_AES_GMAC:
1277                 if (session->cipher.mode == IMB_CIPHER_GCM) {
1278                         job->cipher_start_src_offset_in_bytes =
1279                                         op->sym->aead.data.offset;
1280                         job->hash_start_src_offset_in_bytes =
1281                                         op->sym->aead.data.offset;
1282                         job->msg_len_to_cipher_in_bytes =
1283                                         op->sym->aead.data.length;
1284                         job->msg_len_to_hash_in_bytes =
1285                                         op->sym->aead.data.length;
1286                 } else {
1287                         job->cipher_start_src_offset_in_bytes =
1288                                         op->sym->auth.data.offset;
1289                         job->hash_start_src_offset_in_bytes =
1290                                         op->sym->auth.data.offset;
1291                         job->msg_len_to_cipher_in_bytes = 0;
1292                         job->msg_len_to_hash_in_bytes = 0;
1293                 }
1294
1295                 job->iv = rte_crypto_op_ctod_offset(op, uint8_t *,
1296                                 session->iv.offset);
1297                 break;
1298
1299         case IMB_AUTH_CHACHA20_POLY1305:
1300                 job->cipher_start_src_offset_in_bytes =
1301                         op->sym->aead.data.offset;
1302                 job->hash_start_src_offset_in_bytes =
1303                         op->sym->aead.data.offset;
1304                 job->msg_len_to_cipher_in_bytes =
1305                                 op->sym->aead.data.length;
1306                 job->msg_len_to_hash_in_bytes =
1307                                         op->sym->aead.data.length;
1308
1309                 job->iv = rte_crypto_op_ctod_offset(op, uint8_t *,
1310                                 session->iv.offset);
1311                 break;
1312         default:
1313                 /* For SNOW3G, length and offsets are already in bits */
1314                 job->cipher_start_src_offset_in_bytes =
1315                                 op->sym->cipher.data.offset;
1316                 job->msg_len_to_cipher_in_bytes = op->sym->cipher.data.length;
1317
1318                 job->hash_start_src_offset_in_bytes = auth_start_offset(op,
1319                                 session, oop);
1320                 job->msg_len_to_hash_in_bytes = op->sym->auth.data.length;
1321
1322                 job->iv = rte_crypto_op_ctod_offset(op, uint8_t *,
1323                         session->iv.offset);
1324         }
1325
1326         if (job->cipher_mode == IMB_CIPHER_ZUC_EEA3)
1327                 job->msg_len_to_cipher_in_bytes >>= 3;
1328         else if (job->hash_alg == IMB_AUTH_KASUMI_UIA1)
1329                 job->msg_len_to_hash_in_bytes >>= 3;
1330
1331         /* Set user data to be crypto operation data struct */
1332         job->user_data = op;
1333
1334         return 0;
1335 }
1336
1337 #ifdef AESNI_MB_DOCSIS_SEC_ENABLED
1338 /**
1339  * Process a crypto operation containing a security op and complete a
1340  * IMB_JOB job structure for submission to the multi buffer library for
1341  * processing.
1342  */
1343 static inline int
1344 set_sec_mb_job_params(IMB_JOB *job, struct ipsec_mb_qp *qp,
1345                         struct rte_crypto_op *op, uint8_t *digest_idx)
1346 {
1347         struct aesni_mb_qp_data *qp_data = ipsec_mb_get_qp_private_data(qp);
1348         struct rte_mbuf *m_src, *m_dst;
1349         struct rte_crypto_sym_op *sym;
1350         struct aesni_mb_session *session = NULL;
1351
1352         if (unlikely(op->sess_type != RTE_CRYPTO_OP_SECURITY_SESSION)) {
1353                 op->status = RTE_CRYPTO_OP_STATUS_INVALID_SESSION;
1354                 return -1;
1355         }
1356         session = (struct aesni_mb_session *)
1357                 get_sec_session_private_data(op->sym->sec_session);
1358
1359         if (unlikely(session == NULL)) {
1360                 op->status = RTE_CRYPTO_OP_STATUS_INVALID_SESSION;
1361                 return -1;
1362         }
1363         /* Only DOCSIS protocol operations supported now */
1364         if (session->cipher.mode != IMB_CIPHER_DOCSIS_SEC_BPI ||
1365                         session->auth.algo != IMB_AUTH_DOCSIS_CRC32) {
1366                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1367                 return -1;
1368         }
1369
1370         sym = op->sym;
1371         m_src = sym->m_src;
1372
1373         if (likely(sym->m_dst == NULL || sym->m_dst == m_src)) {
1374                 /* in-place operation */
1375                 m_dst = m_src;
1376         } else {
1377                 /* out-of-place operation not supported */
1378                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1379                 return -ENOTSUP;
1380         }
1381
1382         /* Set crypto operation */
1383         job->chain_order = session->chain_order;
1384
1385         /* Set cipher parameters */
1386         job->cipher_direction = session->cipher.direction;
1387         job->cipher_mode = session->cipher.mode;
1388
1389         job->key_len_in_bytes = session->cipher.key_length_in_bytes;
1390         job->enc_keys = session->cipher.expanded_aes_keys.encode;
1391         job->dec_keys = session->cipher.expanded_aes_keys.decode;
1392
1393         /* Set IV parameters */
1394         job->iv_len_in_bytes = session->iv.length;
1395         job->iv = (uint8_t *)op + session->iv.offset;
1396
1397         /* Set authentication parameters */
1398         job->hash_alg = session->auth.algo;
1399
1400         /* Set digest output location */
1401         job->auth_tag_output = qp_data->temp_digests[*digest_idx];
1402         *digest_idx = (*digest_idx + 1) % IMB_MAX_JOBS;
1403
1404         /* Set digest length */
1405         job->auth_tag_output_len_in_bytes = session->auth.gen_digest_len;
1406
1407         /* Set data parameters */
1408         job->src = rte_pktmbuf_mtod(m_src, uint8_t *);
1409         job->dst = rte_pktmbuf_mtod_offset(m_dst, uint8_t *,
1410                                                 sym->cipher.data.offset);
1411
1412         job->cipher_start_src_offset_in_bytes = sym->cipher.data.offset;
1413         job->msg_len_to_cipher_in_bytes = sym->cipher.data.length;
1414
1415         job->hash_start_src_offset_in_bytes = sym->auth.data.offset;
1416         job->msg_len_to_hash_in_bytes = sym->auth.data.length;
1417
1418         job->user_data = op;
1419
1420         return 0;
1421 }
1422
1423 static inline void
1424 verify_docsis_sec_crc(IMB_JOB *job, uint8_t *status)
1425 {
1426         uint16_t crc_offset;
1427         uint8_t *crc;
1428
1429         if (!job->msg_len_to_hash_in_bytes)
1430                 return;
1431
1432         crc_offset = job->hash_start_src_offset_in_bytes +
1433                         job->msg_len_to_hash_in_bytes -
1434                         job->cipher_start_src_offset_in_bytes;
1435         crc = job->dst + crc_offset;
1436
1437         /* Verify CRC (at the end of the message) */
1438         if (memcmp(job->auth_tag_output, crc, RTE_ETHER_CRC_LEN) != 0)
1439                 *status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
1440 }
1441 #endif
1442
1443 static inline void
1444 verify_digest(IMB_JOB *job, void *digest, uint16_t len, uint8_t *status)
1445 {
1446         /* Verify digest if required */
1447         if (memcmp(job->auth_tag_output, digest, len) != 0)
1448                 *status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
1449 }
1450
1451 static inline void
1452 generate_digest(IMB_JOB *job, struct rte_crypto_op *op,
1453                 struct aesni_mb_session *sess)
1454 {
1455         /* No extra copy needed */
1456         if (likely(sess->auth.req_digest_len == sess->auth.gen_digest_len))
1457                 return;
1458
1459         /*
1460          * This can only happen for HMAC, so only digest
1461          * for authentication algos is required
1462          */
1463         memcpy(op->sym->auth.digest.data, job->auth_tag_output,
1464                         sess->auth.req_digest_len);
1465 }
1466
1467 /**
1468  * Process a completed job and return rte_mbuf which job processed
1469  *
1470  * @param qp    Queue Pair to process
1471  * @param job   IMB_JOB job to process
1472  *
1473  * @return
1474  * - Returns processed crypto operation.
1475  * - Returns NULL on invalid job
1476  */
1477 static inline struct rte_crypto_op *
1478 post_process_mb_job(struct ipsec_mb_qp *qp, IMB_JOB *job)
1479 {
1480         struct rte_crypto_op *op = (struct rte_crypto_op *)job->user_data;
1481         struct aesni_mb_session *sess = NULL;
1482         uint32_t driver_id = ipsec_mb_get_driver_id(
1483                                                 IPSEC_MB_PMD_TYPE_AESNI_MB);
1484
1485 #ifdef AESNI_MB_DOCSIS_SEC_ENABLED
1486         uint8_t is_docsis_sec = 0;
1487
1488         if (op->sess_type == RTE_CRYPTO_OP_SECURITY_SESSION) {
1489                 /*
1490                  * Assuming at this point that if it's a security type op, that
1491                  * this is for DOCSIS
1492                  */
1493                 is_docsis_sec = 1;
1494                 sess = get_sec_session_private_data(op->sym->sec_session);
1495         } else
1496 #endif
1497         {
1498                 sess = get_sym_session_private_data(op->sym->session,
1499                                                 driver_id);
1500         }
1501
1502         if (unlikely(sess == NULL)) {
1503                 op->status = RTE_CRYPTO_OP_STATUS_INVALID_SESSION;
1504                 return op;
1505         }
1506
1507         if (likely(op->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED)) {
1508                 switch (job->status) {
1509                 case IMB_STATUS_COMPLETED:
1510                         op->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
1511
1512                         if (job->hash_alg == IMB_AUTH_NULL)
1513                                 break;
1514
1515                         if (sess->auth.operation == RTE_CRYPTO_AUTH_OP_VERIFY) {
1516                                 if (is_aead_algo(job->hash_alg,
1517                                                 sess->cipher.mode))
1518                                         verify_digest(job,
1519                                                 op->sym->aead.digest.data,
1520                                                 sess->auth.req_digest_len,
1521                                                 &op->status);
1522 #ifdef AESNI_MB_DOCSIS_SEC_ENABLED
1523                                 else if (is_docsis_sec)
1524                                         verify_docsis_sec_crc(job,
1525                                                 &op->status);
1526 #endif
1527                                 else
1528                                         verify_digest(job,
1529                                                 op->sym->auth.digest.data,
1530                                                 sess->auth.req_digest_len,
1531                                                 &op->status);
1532                         } else
1533                                 generate_digest(job, op, sess);
1534                         break;
1535                 default:
1536                         op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1537                 }
1538         }
1539
1540         /* Free session if a session-less crypto op */
1541         if (op->sess_type == RTE_CRYPTO_OP_SESSIONLESS) {
1542                 memset(sess, 0, sizeof(struct aesni_mb_session));
1543                 memset(op->sym->session, 0,
1544                         rte_cryptodev_sym_get_existing_header_session_size(
1545                                 op->sym->session));
1546                 rte_mempool_put(qp->sess_mp_priv, sess);
1547                 rte_mempool_put(qp->sess_mp, op->sym->session);
1548                 op->sym->session = NULL;
1549         }
1550
1551         return op;
1552 }
1553
1554 static inline void
1555 post_process_mb_sync_job(IMB_JOB *job)
1556 {
1557         uint32_t *st;
1558
1559         st = job->user_data;
1560         st[0] = (job->status == IMB_STATUS_COMPLETED) ? 0 : EBADMSG;
1561 }
1562
1563 /**
1564  * Process a completed IMB_JOB job and keep processing jobs until
1565  * get_completed_job return NULL
1566  *
1567  * @param qp            Queue Pair to process
1568  * @param mb_mgr        IMB_MGR to use
1569  * @param job           IMB_JOB job
1570  * @param ops           crypto ops to fill
1571  * @param nb_ops        number of crypto ops
1572  *
1573  * @return
1574  * - Number of processed jobs
1575  */
1576 static unsigned
1577 handle_completed_jobs(struct ipsec_mb_qp *qp, IMB_MGR *mb_mgr,
1578                 IMB_JOB *job, struct rte_crypto_op **ops,
1579                 uint16_t nb_ops)
1580 {
1581         struct rte_crypto_op *op = NULL;
1582         uint16_t processed_jobs = 0;
1583
1584         while (job != NULL) {
1585                 op = post_process_mb_job(qp, job);
1586
1587                 if (op) {
1588                         ops[processed_jobs++] = op;
1589                         qp->stats.dequeued_count++;
1590                 } else {
1591                         qp->stats.dequeue_err_count++;
1592                         break;
1593                 }
1594                 if (processed_jobs == nb_ops)
1595                         break;
1596
1597                 job = IMB_GET_COMPLETED_JOB(mb_mgr);
1598         }
1599
1600         return processed_jobs;
1601 }
1602
1603 static inline uint32_t
1604 handle_completed_sync_jobs(IMB_JOB *job, IMB_MGR *mb_mgr)
1605 {
1606         uint32_t i;
1607
1608         for (i = 0; job != NULL; i++, job = IMB_GET_COMPLETED_JOB(mb_mgr))
1609                 post_process_mb_sync_job(job);
1610
1611         return i;
1612 }
1613
1614 static inline uint32_t
1615 flush_mb_sync_mgr(IMB_MGR *mb_mgr)
1616 {
1617         IMB_JOB *job;
1618
1619         job = IMB_FLUSH_JOB(mb_mgr);
1620         return handle_completed_sync_jobs(job, mb_mgr);
1621 }
1622
1623 static inline uint16_t
1624 flush_mb_mgr(struct ipsec_mb_qp *qp, IMB_MGR *mb_mgr,
1625                 struct rte_crypto_op **ops, uint16_t nb_ops)
1626 {
1627         int processed_ops = 0;
1628
1629         /* Flush the remaining jobs */
1630         IMB_JOB *job = IMB_FLUSH_JOB(mb_mgr);
1631
1632         if (job)
1633                 processed_ops += handle_completed_jobs(qp, mb_mgr, job,
1634                                 &ops[processed_ops], nb_ops - processed_ops);
1635
1636         return processed_ops;
1637 }
1638
1639 static inline IMB_JOB *
1640 set_job_null_op(IMB_JOB *job, struct rte_crypto_op *op)
1641 {
1642         job->chain_order = IMB_ORDER_HASH_CIPHER;
1643         job->cipher_mode = IMB_CIPHER_NULL;
1644         job->hash_alg = IMB_AUTH_NULL;
1645         job->cipher_direction = IMB_DIR_DECRYPT;
1646
1647         /* Set user data to be crypto operation data struct */
1648         job->user_data = op;
1649
1650         return job;
1651 }
1652
1653 static uint16_t
1654 aesni_mb_dequeue_burst(void *queue_pair, struct rte_crypto_op **ops,
1655                 uint16_t nb_ops)
1656 {
1657         struct ipsec_mb_qp *qp = queue_pair;
1658         IMB_MGR *mb_mgr = qp->mb_mgr;
1659         struct rte_crypto_op *op;
1660         IMB_JOB *job;
1661         int retval, processed_jobs = 0;
1662
1663         if (unlikely(nb_ops == 0 || mb_mgr == NULL))
1664                 return 0;
1665
1666         uint8_t digest_idx = qp->digest_idx;
1667
1668         do {
1669                 /* Get next free mb job struct from mb manager */
1670                 job = IMB_GET_NEXT_JOB(mb_mgr);
1671                 if (unlikely(job == NULL)) {
1672                         /* if no free mb job structs we need to flush mb_mgr */
1673                         processed_jobs += flush_mb_mgr(qp, mb_mgr,
1674                                         &ops[processed_jobs],
1675                                         nb_ops - processed_jobs);
1676
1677                         if (nb_ops == processed_jobs)
1678                                 break;
1679
1680                         job = IMB_GET_NEXT_JOB(mb_mgr);
1681                 }
1682
1683                 /*
1684                  * Get next operation to process from ingress queue.
1685                  * There is no need to return the job to the IMB_MGR
1686                  * if there are no more operations to process, since the IMB_MGR
1687                  * can use that pointer again in next get_next calls.
1688                  */
1689                 retval = rte_ring_dequeue(qp->ingress_queue, (void **)&op);
1690                 if (retval < 0)
1691                         break;
1692
1693 #ifdef AESNI_MB_DOCSIS_SEC_ENABLED
1694                 if (op->sess_type == RTE_CRYPTO_OP_SECURITY_SESSION)
1695                         retval = set_sec_mb_job_params(job, qp, op,
1696                                                 &digest_idx);
1697                 else
1698 #endif
1699                         retval = set_mb_job_params(job, qp, op,
1700                                 &digest_idx);
1701
1702                 if (unlikely(retval != 0)) {
1703                         qp->stats.dequeue_err_count++;
1704                         set_job_null_op(job, op);
1705                 }
1706
1707                 /* Submit job to multi-buffer for processing */
1708 #ifdef RTE_LIBRTE_PMD_AESNI_MB_DEBUG
1709                 job = IMB_SUBMIT_JOB(mb_mgr);
1710 #else
1711                 job = IMB_SUBMIT_JOB_NOCHECK(mb_mgr);
1712 #endif
1713                 /*
1714                  * If submit returns a processed job then handle it,
1715                  * before submitting subsequent jobs
1716                  */
1717                 if (job)
1718                         processed_jobs += handle_completed_jobs(qp, mb_mgr,
1719                                         job, &ops[processed_jobs],
1720                                         nb_ops - processed_jobs);
1721
1722         } while (processed_jobs < nb_ops);
1723
1724         qp->digest_idx = digest_idx;
1725
1726         if (processed_jobs < 1)
1727                 processed_jobs += flush_mb_mgr(qp, mb_mgr,
1728                                 &ops[processed_jobs],
1729                                 nb_ops - processed_jobs);
1730
1731         return processed_jobs;
1732 }
1733
1734
1735 static inline void
1736 ipsec_mb_fill_error_code(struct rte_crypto_sym_vec *vec, int32_t err)
1737 {
1738         uint32_t i;
1739
1740         for (i = 0; i != vec->num; ++i)
1741                 vec->status[i] = err;
1742 }
1743
1744 static inline int
1745 check_crypto_sgl(union rte_crypto_sym_ofs so, const struct rte_crypto_sgl *sgl)
1746 {
1747         /* no multi-seg support with current AESNI-MB PMD */
1748         if (sgl->num != 1)
1749                 return -ENOTSUP;
1750         else if (so.ofs.cipher.head + so.ofs.cipher.tail > sgl->vec[0].len)
1751                 return -EINVAL;
1752         return 0;
1753 }
1754
1755 static inline IMB_JOB *
1756 submit_sync_job(IMB_MGR *mb_mgr)
1757 {
1758 #ifdef RTE_LIBRTE_PMD_AESNI_MB_DEBUG
1759         return IMB_SUBMIT_JOB(mb_mgr);
1760 #else
1761         return IMB_SUBMIT_JOB_NOCHECK(mb_mgr);
1762 #endif
1763 }
1764
1765 static inline uint32_t
1766 generate_sync_dgst(struct rte_crypto_sym_vec *vec,
1767         const uint8_t dgst[][DIGEST_LENGTH_MAX], uint32_t len)
1768 {
1769         uint32_t i, k;
1770
1771         for (i = 0, k = 0; i != vec->num; i++) {
1772                 if (vec->status[i] == 0) {
1773                         memcpy(vec->digest[i].va, dgst[i], len);
1774                         k++;
1775                 }
1776         }
1777
1778         return k;
1779 }
1780
1781 static inline uint32_t
1782 verify_sync_dgst(struct rte_crypto_sym_vec *vec,
1783         const uint8_t dgst[][DIGEST_LENGTH_MAX], uint32_t len)
1784 {
1785         uint32_t i, k;
1786
1787         for (i = 0, k = 0; i != vec->num; i++) {
1788                 if (vec->status[i] == 0) {
1789                         if (memcmp(vec->digest[i].va, dgst[i], len) != 0)
1790                                 vec->status[i] = EBADMSG;
1791                         else
1792                                 k++;
1793                 }
1794         }
1795
1796         return k;
1797 }
1798
1799 static uint32_t
1800 aesni_mb_process_bulk(struct rte_cryptodev *dev,
1801         struct rte_cryptodev_sym_session *sess, union rte_crypto_sym_ofs sofs,
1802         struct rte_crypto_sym_vec *vec)
1803 {
1804         int32_t ret;
1805         uint32_t i, j, k, len;
1806         void *buf;
1807         IMB_JOB *job;
1808         IMB_MGR *mb_mgr;
1809         struct aesni_mb_session *s;
1810         uint8_t tmp_dgst[vec->num][DIGEST_LENGTH_MAX];
1811
1812         s = get_sym_session_private_data(sess, dev->driver_id);
1813         if (s == NULL) {
1814                 ipsec_mb_fill_error_code(vec, EINVAL);
1815                 return 0;
1816         }
1817
1818         /* get per-thread MB MGR, create one if needed */
1819         mb_mgr = get_per_thread_mb_mgr();
1820         if (unlikely(mb_mgr == NULL))
1821                 return 0;
1822
1823         for (i = 0, j = 0, k = 0; i != vec->num; i++) {
1824                 ret = check_crypto_sgl(sofs, vec->src_sgl + i);
1825                 if (ret != 0) {
1826                         vec->status[i] = ret;
1827                         continue;
1828                 }
1829
1830                 buf = vec->src_sgl[i].vec[0].base;
1831                 len = vec->src_sgl[i].vec[0].len;
1832
1833                 job = IMB_GET_NEXT_JOB(mb_mgr);
1834                 if (job == NULL) {
1835                         k += flush_mb_sync_mgr(mb_mgr);
1836                         job = IMB_GET_NEXT_JOB(mb_mgr);
1837                         RTE_ASSERT(job != NULL);
1838                 }
1839
1840                 /* Submit job for processing */
1841                 set_cpu_mb_job_params(job, s, sofs, buf, len, &vec->iv[i],
1842                         &vec->aad[i], tmp_dgst[i], &vec->status[i]);
1843                 job = submit_sync_job(mb_mgr);
1844                 j++;
1845
1846                 /* handle completed jobs */
1847                 k += handle_completed_sync_jobs(job, mb_mgr);
1848         }
1849
1850         /* flush remaining jobs */
1851         while (k != j)
1852                 k += flush_mb_sync_mgr(mb_mgr);
1853
1854         /* finish processing for successful jobs: check/update digest */
1855         if (k != 0) {
1856                 if (s->auth.operation == RTE_CRYPTO_AUTH_OP_VERIFY)
1857                         k = verify_sync_dgst(vec,
1858                                 (const uint8_t (*)[DIGEST_LENGTH_MAX])tmp_dgst,
1859                                 s->auth.req_digest_len);
1860                 else
1861                         k = generate_sync_dgst(vec,
1862                                 (const uint8_t (*)[DIGEST_LENGTH_MAX])tmp_dgst,
1863                                 s->auth.req_digest_len);
1864         }
1865
1866         return k;
1867 }
1868
1869 struct rte_cryptodev_ops aesni_mb_pmd_ops = {
1870         .dev_configure = ipsec_mb_config,
1871         .dev_start = ipsec_mb_start,
1872         .dev_stop = ipsec_mb_stop,
1873         .dev_close = ipsec_mb_close,
1874
1875         .stats_get = ipsec_mb_stats_get,
1876         .stats_reset = ipsec_mb_stats_reset,
1877
1878         .dev_infos_get = ipsec_mb_info_get,
1879
1880         .queue_pair_setup = ipsec_mb_qp_setup,
1881         .queue_pair_release = ipsec_mb_qp_release,
1882
1883         .sym_cpu_process = aesni_mb_process_bulk,
1884
1885         .sym_session_get_size = ipsec_mb_sym_session_get_size,
1886         .sym_session_configure = ipsec_mb_sym_session_configure,
1887         .sym_session_clear = ipsec_mb_sym_session_clear
1888 };
1889
1890 #ifdef AESNI_MB_DOCSIS_SEC_ENABLED
1891 /**
1892  * Configure a aesni multi-buffer session from a security session
1893  * configuration
1894  */
1895 static int
1896 aesni_mb_pmd_sec_sess_create(void *dev, struct rte_security_session_conf *conf,
1897                 struct rte_security_session *sess,
1898                 struct rte_mempool *mempool)
1899 {
1900         void *sess_private_data;
1901         struct rte_cryptodev *cdev = (struct rte_cryptodev *)dev;
1902         int ret;
1903
1904         if (conf->action_type != RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL ||
1905                         conf->protocol != RTE_SECURITY_PROTOCOL_DOCSIS) {
1906                 IPSEC_MB_LOG(ERR, "Invalid security protocol");
1907                 return -EINVAL;
1908         }
1909
1910         if (rte_mempool_get(mempool, &sess_private_data)) {
1911                 IPSEC_MB_LOG(ERR, "Couldn't get object from session mempool");
1912                 return -ENOMEM;
1913         }
1914
1915         ret = aesni_mb_set_docsis_sec_session_parameters(cdev, conf,
1916                         sess_private_data);
1917
1918         if (ret != 0) {
1919                 IPSEC_MB_LOG(ERR, "Failed to configure session parameters");
1920
1921                 /* Return session to mempool */
1922                 rte_mempool_put(mempool, sess_private_data);
1923                 return ret;
1924         }
1925
1926         set_sec_session_private_data(sess, sess_private_data);
1927
1928         return ret;
1929 }
1930
1931 /** Clear the memory of session so it does not leave key material behind */
1932 static int
1933 aesni_mb_pmd_sec_sess_destroy(void *dev __rte_unused,
1934                 struct rte_security_session *sess)
1935 {
1936         void *sess_priv = get_sec_session_private_data(sess);
1937
1938         if (sess_priv) {
1939                 struct rte_mempool *sess_mp = rte_mempool_from_obj(sess_priv);
1940
1941                 memset(sess_priv, 0, sizeof(struct aesni_mb_session));
1942                 set_sec_session_private_data(sess, NULL);
1943                 rte_mempool_put(sess_mp, sess_priv);
1944         }
1945         return 0;
1946 }
1947
1948 /** Get security capabilities for aesni multi-buffer */
1949 static const struct rte_security_capability *
1950 aesni_mb_pmd_sec_capa_get(void *device __rte_unused)
1951 {
1952         return aesni_mb_pmd_security_cap;
1953 }
1954
1955 static struct rte_security_ops aesni_mb_pmd_sec_ops = {
1956                 .session_create = aesni_mb_pmd_sec_sess_create,
1957                 .session_update = NULL,
1958                 .session_stats_get = NULL,
1959                 .session_destroy = aesni_mb_pmd_sec_sess_destroy,
1960                 .set_pkt_metadata = NULL,
1961                 .capabilities_get = aesni_mb_pmd_sec_capa_get
1962 };
1963
1964 struct rte_security_ops *rte_aesni_mb_pmd_sec_ops = &aesni_mb_pmd_sec_ops;
1965
1966 static int
1967 aesni_mb_configure_dev(struct rte_cryptodev *dev)
1968 {
1969         struct rte_security_ctx *security_instance;
1970
1971         security_instance = rte_malloc("aesni_mb_sec",
1972                                 sizeof(struct rte_security_ctx),
1973                                 RTE_CACHE_LINE_SIZE);
1974         if (security_instance != NULL) {
1975                 security_instance->device = (void *)dev;
1976                 security_instance->ops = rte_aesni_mb_pmd_sec_ops;
1977                 security_instance->sess_cnt = 0;
1978                 dev->security_ctx = security_instance;
1979
1980                 return 0;
1981         }
1982
1983         return -ENOMEM;
1984 }
1985
1986 #endif
1987
1988 static int
1989 aesni_mb_probe(struct rte_vdev_device *vdev)
1990 {
1991         return ipsec_mb_create(vdev, IPSEC_MB_PMD_TYPE_AESNI_MB);
1992 }
1993
1994 static struct rte_vdev_driver cryptodev_aesni_mb_pmd_drv = {
1995         .probe = aesni_mb_probe,
1996         .remove = ipsec_mb_remove
1997 };
1998
1999 static struct cryptodev_driver aesni_mb_crypto_drv;
2000
2001 RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_AESNI_MB_PMD,
2002         cryptodev_aesni_mb_pmd_drv);
2003 RTE_PMD_REGISTER_ALIAS(CRYPTODEV_NAME_AESNI_MB_PMD, cryptodev_aesni_mb_pmd);
2004 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_AESNI_MB_PMD,
2005                         "max_nb_queue_pairs=<int> socket_id=<int>");
2006 RTE_PMD_REGISTER_CRYPTO_DRIVER(
2007         aesni_mb_crypto_drv,
2008         cryptodev_aesni_mb_pmd_drv.driver,
2009         pmd_driver_id_aesni_mb);
2010
2011 /* Constructor function to register aesni-mb PMD */
2012 RTE_INIT(ipsec_mb_register_aesni_mb)
2013 {
2014         struct ipsec_mb_internals *aesni_mb_data =
2015                 &ipsec_mb_pmds[IPSEC_MB_PMD_TYPE_AESNI_MB];
2016
2017         aesni_mb_data->caps = aesni_mb_capabilities;
2018         aesni_mb_data->dequeue_burst = aesni_mb_dequeue_burst;
2019         aesni_mb_data->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
2020                         RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
2021                         RTE_CRYPTODEV_FF_OOP_LB_IN_LB_OUT |
2022                         RTE_CRYPTODEV_FF_SYM_CPU_CRYPTO |
2023                         RTE_CRYPTODEV_FF_NON_BYTE_ALIGNED_DATA |
2024                         RTE_CRYPTODEV_FF_SYM_SESSIONLESS;
2025
2026         aesni_mb_data->internals_priv_size = 0;
2027         aesni_mb_data->ops = &aesni_mb_pmd_ops;
2028         aesni_mb_data->qp_priv_size = sizeof(struct aesni_mb_qp_data);
2029         aesni_mb_data->queue_pair_configure = NULL;
2030 #ifdef AESNI_MB_DOCSIS_SEC_ENABLED
2031         aesni_mb_data->security_ops = &aesni_mb_pmd_sec_ops;
2032         aesni_mb_data->dev_config = aesni_mb_configure_dev;
2033         aesni_mb_data->feature_flags |= RTE_CRYPTODEV_FF_SECURITY;
2034 #endif
2035         aesni_mb_data->session_configure = aesni_mb_session_configure;
2036         aesni_mb_data->session_priv_size = sizeof(struct aesni_mb_session);
2037 }