drivers/crypto/ipsec_mb/pmd_snow3g.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2016-2021 Intel Corporation
   3  */
   4
   5 #include "pmd_snow3g_priv.h"
   6
   7 /** Parse crypto xform chain and set private session parameters. */
   8 static int
   9 snow3g_session_configure(IMB_MGR *mgr, void *priv_sess,
  10                 const struct rte_crypto_sym_xform *xform)
  11 {
  12         struct snow3g_session *sess = (struct snow3g_session *)priv_sess;
  13         const struct rte_crypto_sym_xform *auth_xform = NULL;
  14         const struct rte_crypto_sym_xform *cipher_xform = NULL;
  15         enum ipsec_mb_operation mode;
  16
  17         /* Select Crypto operation - hash then cipher / cipher then hash */
  18         int ret = ipsec_mb_parse_xform(xform, &mode, &auth_xform,
  19                                 &cipher_xform, NULL);
  20         if (ret)
  21                 return ret;
  22
  23         if (cipher_xform) {
  24                 /* Only SNOW 3G UEA2 supported */
  25                 if (cipher_xform->cipher.algo != RTE_CRYPTO_CIPHER_SNOW3G_UEA2)
  26                         return -ENOTSUP;
  27
  28                 if (cipher_xform->cipher.iv.length != SNOW3G_IV_LENGTH) {
  29                         IPSEC_MB_LOG(ERR, "Wrong IV length");
  30                         return -EINVAL;
  31                 }
  32                 if (cipher_xform->cipher.key.length > SNOW3G_MAX_KEY_SIZE) {
  33                         IPSEC_MB_LOG(ERR, "Not enough memory to store the key");
  34                         return -ENOMEM;
  35                 }
  36
  37                 sess->cipher_iv_offset = cipher_xform->cipher.iv.offset;
  38
  39                 /* Initialize key */
  40                 IMB_SNOW3G_INIT_KEY_SCHED(mgr, cipher_xform->cipher.key.data,
  41                                         &sess->pKeySched_cipher);
  42         }
  43
  44         if (auth_xform) {
  45                 /* Only SNOW 3G UIA2 supported */
  46                 if (auth_xform->auth.algo != RTE_CRYPTO_AUTH_SNOW3G_UIA2)
  47                         return -ENOTSUP;
  48
  49                 if (auth_xform->auth.digest_length != SNOW3G_DIGEST_LENGTH) {
  50                         IPSEC_MB_LOG(ERR, "Wrong digest length");
  51                         return -EINVAL;
  52                 }
  53                 if (auth_xform->auth.key.length > SNOW3G_MAX_KEY_SIZE) {
  54                         IPSEC_MB_LOG(ERR, "Not enough memory to store the key");
  55                         return -ENOMEM;
  56                 }
  57
  58                 sess->auth_op = auth_xform->auth.op;
  59
  60                 if (auth_xform->auth.iv.length != SNOW3G_IV_LENGTH) {
  61                         IPSEC_MB_LOG(ERR, "Wrong IV length");
  62                         return -EINVAL;
  63                 }
  64                 sess->auth_iv_offset = auth_xform->auth.iv.offset;
  65
  66                 /* Initialize key */
  67                 IMB_SNOW3G_INIT_KEY_SCHED(mgr, auth_xform->auth.key.data,
  68                                         &sess->pKeySched_hash);
  69         }
  70
  71         sess->op = mode;
  72
  73         return 0;
  74 }
  75
  76 /** Check if conditions are met for digest-appended operations */
  77 static uint8_t *
  78 snow3g_digest_appended_in_src(struct rte_crypto_op *op)
  79 {
  80         unsigned int auth_size, cipher_size;
  81
  82         auth_size = (op->sym->auth.data.offset >> 3) +
  83                 (op->sym->auth.data.length >> 3);
  84         cipher_size = (op->sym->cipher.data.offset >> 3) +
  85                 (op->sym->cipher.data.length >> 3);
  86
  87         if (auth_size < cipher_size)
  88                 return rte_pktmbuf_mtod_offset(op->sym->m_src,
  89                                 uint8_t *, auth_size);
  90
  91         return NULL;
  92 }
  93
  94 /** Encrypt/decrypt mbufs with same cipher key. */
  95 static uint8_t
  96 process_snow3g_cipher_op(struct ipsec_mb_qp *qp, struct rte_crypto_op **ops,
  97                 struct snow3g_session *session,
  98                 uint8_t num_ops)
  99 {
 100         uint32_t i;
 101         uint8_t processed_ops = 0;
 102         const void *src[SNOW3G_MAX_BURST] = {NULL};
 103         void *dst[SNOW3G_MAX_BURST] = {NULL};
 104         uint8_t *digest_appended[SNOW3G_MAX_BURST] = {NULL};
 105         const void *iv[SNOW3G_MAX_BURST] = {NULL};
 106         uint32_t num_bytes[SNOW3G_MAX_BURST] = {0};
 107         uint32_t cipher_off, cipher_len;
 108         int unencrypted_bytes = 0;
 109
 110         for (i = 0; i < num_ops; i++) {
 111
 112                 cipher_off = ops[i]->sym->cipher.data.offset >> 3;
 113                 cipher_len = ops[i]->sym->cipher.data.length >> 3;
 114                 src[i] = rte_pktmbuf_mtod_offset(
 115                         ops[i]->sym->m_src,     uint8_t *, cipher_off);
 116
 117                 /* If out-of-place operation */
 118                 if (ops[i]->sym->m_dst &&
 119                         ops[i]->sym->m_src != ops[i]->sym->m_dst) {
 120                         dst[i] = rte_pktmbuf_mtod_offset(
 121                                 ops[i]->sym->m_dst, uint8_t *, cipher_off);
 122
 123                         /* In case of out-of-place, auth-cipher operation
 124                          * with partial encryption of the digest, copy
 125                          * the remaining, unencrypted part.
 126                          */
 127                         if (session->op == IPSEC_MB_OP_HASH_VERIFY_THEN_DECRYPT
 128                             || session->op == IPSEC_MB_OP_HASH_GEN_THEN_ENCRYPT)
 129                                 unencrypted_bytes =
 130                                         (ops[i]->sym->auth.data.offset >> 3) +
 131                                         (ops[i]->sym->auth.data.length >> 3) +
 132                                         (SNOW3G_DIGEST_LENGTH) -
 133                                         cipher_off - cipher_len;
 134                         if (unencrypted_bytes > 0)
 135                                 rte_memcpy(
 136                                         rte_pktmbuf_mtod_offset(
 137                                                 ops[i]->sym->m_dst, uint8_t *,
 138                                                 cipher_off + cipher_len),
 139                                         rte_pktmbuf_mtod_offset(
 140                                                 ops[i]->sym->m_src, uint8_t *,
 141                                                 cipher_off + cipher_len),
 142                                         unencrypted_bytes);
 143                 } else
 144                         dst[i] = rte_pktmbuf_mtod_offset(ops[i]->sym->m_src,
 145                                                 uint8_t *, cipher_off);
 146
 147                 iv[i] = rte_crypto_op_ctod_offset(ops[i], uint8_t *,
 148                                 session->cipher_iv_offset);
 149                 num_bytes[i] = cipher_len;
 150                 processed_ops++;
 151         }
 152
 153         IMB_SNOW3G_F8_N_BUFFER(qp->mb_mgr, &session->pKeySched_cipher, iv,
 154                         src, dst, num_bytes, processed_ops);
 155
 156         /* Take care of the raw digest data in src buffer */
 157         for (i = 0; i < num_ops; i++) {
 158                 if ((session->op == IPSEC_MB_OP_HASH_VERIFY_THEN_DECRYPT ||
 159                         session->op == IPSEC_MB_OP_HASH_GEN_THEN_ENCRYPT) &&
 160                                 ops[i]->sym->m_dst != NULL) {
 161                         digest_appended[i] =
 162                                 snow3g_digest_appended_in_src(ops[i]);
 163                         /* Clear unencrypted digest from
 164                          * the src buffer
 165                          */
 166                         if (digest_appended[i] != NULL)
 167                                 memset(digest_appended[i],
 168                                         0, SNOW3G_DIGEST_LENGTH);
 169                 }
 170         }
 171         return processed_ops;
 172 }
 173
 174 /** Encrypt/decrypt mbuf (bit level function). */
 175 static uint8_t
 176 process_snow3g_cipher_op_bit(struct ipsec_mb_qp *qp,
 177                 struct rte_crypto_op *op,
 178                 struct snow3g_session *session)
 179 {
 180         uint8_t *src, *dst;
 181         uint8_t *iv;
 182         uint32_t length_in_bits, offset_in_bits;
 183         int unencrypted_bytes = 0;
 184
 185         offset_in_bits = op->sym->cipher.data.offset;
 186         src = rte_pktmbuf_mtod(op->sym->m_src, uint8_t *);
 187         if (op->sym->m_dst == NULL) {
 188                 op->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 189                 IPSEC_MB_LOG(ERR, "bit-level in-place not supported\n");
 190                 return 0;
 191         }
 192         length_in_bits = op->sym->cipher.data.length;
 193         dst = rte_pktmbuf_mtod(op->sym->m_dst, uint8_t *);
 194         /* In case of out-of-place, auth-cipher operation
 195          * with partial encryption of the digest, copy
 196          * the remaining, unencrypted part.
 197          */
 198         if (session->op == IPSEC_MB_OP_HASH_VERIFY_THEN_DECRYPT ||
 199                 session->op == IPSEC_MB_OP_HASH_GEN_THEN_ENCRYPT)
 200                 unencrypted_bytes =
 201                         (op->sym->auth.data.offset >> 3) +
 202                         (op->sym->auth.data.length >> 3) +
 203                         (SNOW3G_DIGEST_LENGTH) -
 204                         (offset_in_bits >> 3) -
 205                         (length_in_bits >> 3);
 206         if (unencrypted_bytes > 0)
 207                 rte_memcpy(
 208                         rte_pktmbuf_mtod_offset(
 209                                 op->sym->m_dst, uint8_t *,
 210                                 (length_in_bits >> 3)),
 211                         rte_pktmbuf_mtod_offset(
 212                                 op->sym->m_src, uint8_t *,
 213                                 (length_in_bits >> 3)),
 214                                 unencrypted_bytes);
 215
 216         iv = rte_crypto_op_ctod_offset(op, uint8_t *,
 217                                 session->cipher_iv_offset);
 218
 219         IMB_SNOW3G_F8_1_BUFFER_BIT(qp->mb_mgr, &session->pKeySched_cipher, iv,
 220                         src, dst, length_in_bits, offset_in_bits);
 221
 222         return 1;
 223 }
 224
 225 /** Generate/verify hash from mbufs with same hash key. */
 226 static int
 227 process_snow3g_hash_op(struct ipsec_mb_qp *qp, struct rte_crypto_op **ops,
 228                 struct snow3g_session *session,
 229                 uint8_t num_ops)
 230 {
 231         uint32_t i;
 232         uint8_t processed_ops = 0;
 233         uint8_t *src, *dst;
 234         uint32_t length_in_bits;
 235         uint8_t *iv;
 236         uint8_t digest_appended = 0;
 237         struct snow3g_qp_data *qp_data = ipsec_mb_get_qp_private_data(qp);
 238
 239         for (i = 0; i < num_ops; i++) {
 240                 /* Data must be byte aligned */
 241                 if ((ops[i]->sym->auth.data.offset % BYTE_LEN) != 0) {
 242                         ops[i]->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 243                         IPSEC_MB_LOG(ERR, "Offset");
 244                         break;
 245                 }
 246
 247                 dst = NULL;
 248
 249                 length_in_bits = ops[i]->sym->auth.data.length;
 250
 251                 src = rte_pktmbuf_mtod(ops[i]->sym->m_src, uint8_t *) +
 252                                 (ops[i]->sym->auth.data.offset >> 3);
 253                 iv = rte_crypto_op_ctod_offset(ops[i], uint8_t *,
 254                                 session->auth_iv_offset);
 255
 256                 if (session->auth_op == RTE_CRYPTO_AUTH_OP_VERIFY) {
 257                         dst = qp_data->temp_digest;
 258                          /* Handle auth cipher verify oop case*/
 259                         if ((session->op ==
 260                                 IPSEC_MB_OP_ENCRYPT_THEN_HASH_GEN ||
 261                                 session->op ==
 262                                 IPSEC_MB_OP_DECRYPT_THEN_HASH_VERIFY) &&
 263                                 ops[i]->sym->m_dst != NULL)
 264                                 src = rte_pktmbuf_mtod_offset(
 265                                         ops[i]->sym->m_dst, uint8_t *,
 266                                         ops[i]->sym->auth.data.offset >> 3);
 267
 268                         IMB_SNOW3G_F9_1_BUFFER(qp->mb_mgr,
 269                                         &session->pKeySched_hash,
 270                                         iv, src, length_in_bits, dst);
 271                         /* Verify digest. */
 272                         if (memcmp(dst, ops[i]->sym->auth.digest.data,
 273                                         SNOW3G_DIGEST_LENGTH) != 0)
 274                                 ops[i]->status =
 275                                         RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
 276                 } else {
 277                         if (session->op ==
 278                                 IPSEC_MB_OP_HASH_VERIFY_THEN_DECRYPT ||
 279                                 session->op ==
 280                                 IPSEC_MB_OP_HASH_GEN_THEN_ENCRYPT)
 281                                 dst = snow3g_digest_appended_in_src(ops[i]);
 282
 283                         if (dst != NULL)
 284                                 digest_appended = 1;
 285                         else
 286                                 dst = ops[i]->sym->auth.digest.data;
 287
 288                         IMB_SNOW3G_F9_1_BUFFER(qp->mb_mgr,
 289                                         &session->pKeySched_hash,
 290                                         iv, src, length_in_bits, dst);
 291
 292                         /* Copy back digest from src to auth.digest.data */
 293                         if (digest_appended)
 294                                 rte_memcpy(ops[i]->sym->auth.digest.data,
 295                                         dst, SNOW3G_DIGEST_LENGTH);
 296                 }
 297                 processed_ops++;
 298         }
 299
 300         return processed_ops;
 301 }
 302
 303 /** Process a batch of crypto ops which shares the same session. */
 304 static int
 305 process_ops(struct rte_crypto_op **ops, struct snow3g_session *session,
 306                 struct ipsec_mb_qp *qp, uint8_t num_ops)
 307 {
 308         uint32_t i;
 309         uint32_t processed_ops;
 310
 311 #ifdef RTE_LIBRTE_PMD_SNOW3G_DEBUG
 312         for (i = 0; i < num_ops; i++) {
 313                 if (!rte_pktmbuf_is_contiguous(ops[i]->sym->m_src) ||
 314                                 (ops[i]->sym->m_dst != NULL &&
 315                                 !rte_pktmbuf_is_contiguous(
 316                                                 ops[i]->sym->m_dst))) {
 317                         IPSEC_MB_LOG(ERR,
 318                                 "PMD supports only contiguous mbufs, "
 319                                 "op (%p) provides noncontiguous mbuf as "
 320                                 "source/destination buffer.\n", ops[i]);
 321                         ops[i]->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 322                         return 0;
 323                 }
 324         }
 325 #endif
 326
 327         switch (session->op) {
 328         case IPSEC_MB_OP_ENCRYPT_ONLY:
 329         case IPSEC_MB_OP_DECRYPT_ONLY:
 330                 processed_ops = process_snow3g_cipher_op(qp, ops,
 331                                 session, num_ops);
 332                 break;
 333         case IPSEC_MB_OP_HASH_GEN_ONLY:
 334         case IPSEC_MB_OP_HASH_VERIFY_ONLY:
 335                 processed_ops = process_snow3g_hash_op(qp, ops, session,
 336                                 num_ops);
 337                 break;
 338         case IPSEC_MB_OP_ENCRYPT_THEN_HASH_GEN:
 339         case IPSEC_MB_OP_DECRYPT_THEN_HASH_VERIFY:
 340                 processed_ops = process_snow3g_cipher_op(qp, ops, session,
 341                                 num_ops);
 342                 process_snow3g_hash_op(qp, ops, session, processed_ops);
 343                 break;
 344         case IPSEC_MB_OP_HASH_VERIFY_THEN_DECRYPT:
 345         case IPSEC_MB_OP_HASH_GEN_THEN_ENCRYPT:
 346                 processed_ops = process_snow3g_hash_op(qp, ops, session,
 347                                 num_ops);
 348                 process_snow3g_cipher_op(qp, ops, session, processed_ops);
 349                 break;
 350         default:
 351                 /* Operation not supported. */
 352                 processed_ops = 0;
 353         }
 354
 355         for (i = 0; i < num_ops; i++) {
 356                 /*
 357                  * If there was no error/authentication failure,
 358                  * change status to successful.
 359                  */
 360                 if (ops[i]->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED)
 361                         ops[i]->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
 362                 /* Free session if a session-less crypto op. */
 363                 if (ops[i]->sess_type == RTE_CRYPTO_OP_SESSIONLESS) {
 364                         memset(session, 0, sizeof(struct snow3g_session));
 365                         memset(ops[i]->sym->session, 0,
 366                         rte_cryptodev_sym_get_existing_header_session_size(
 367                                         ops[i]->sym->session));
 368                         rte_mempool_put(qp->sess_mp_priv, session);
 369                         rte_mempool_put(qp->sess_mp, ops[i]->sym->session);
 370                         ops[i]->sym->session = NULL;
 371                 }
 372         }
 373         return processed_ops;
 374 }
 375
 376 /** Process a crypto op with length/offset in bits. */
 377 static int
 378 process_op_bit(struct rte_crypto_op *op, struct snow3g_session *session,
 379                 struct ipsec_mb_qp *qp, uint16_t *accumulated_enqueued_ops)
 380 {
 381         uint32_t enqueued_op, processed_op;
 382
 383         switch (session->op) {
 384         case IPSEC_MB_OP_ENCRYPT_ONLY:
 385         case IPSEC_MB_OP_DECRYPT_ONLY:
 386
 387                 processed_op = process_snow3g_cipher_op_bit(qp, op,
 388                                 session);
 389                 break;
 390         case IPSEC_MB_OP_HASH_GEN_ONLY:
 391         case IPSEC_MB_OP_HASH_VERIFY_ONLY:
 392                 processed_op = process_snow3g_hash_op(qp, &op, session, 1);
 393                 break;
 394         case IPSEC_MB_OP_ENCRYPT_THEN_HASH_GEN:
 395         case IPSEC_MB_OP_DECRYPT_THEN_HASH_VERIFY:
 396                 processed_op = process_snow3g_cipher_op_bit(qp, op, session);
 397                 if (processed_op == 1)
 398                         process_snow3g_hash_op(qp, &op, session, 1);
 399                 break;
 400         case IPSEC_MB_OP_HASH_VERIFY_THEN_DECRYPT:
 401         case IPSEC_MB_OP_HASH_GEN_THEN_ENCRYPT:
 402                 processed_op = process_snow3g_hash_op(qp, &op, session, 1);
 403                 if (processed_op == 1)
 404                         process_snow3g_cipher_op_bit(qp, op, session);
 405                 break;
 406         default:
 407                 /* Operation not supported. */
 408                 processed_op = 0;
 409         }
 410
 411         /*
 412          * If there was no error/authentication failure,
 413          * change status to successful.
 414          */
 415         if (op->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED)
 416                 op->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
 417
 418         /* Free session if a session-less crypto op. */
 419         if (op->sess_type == RTE_CRYPTO_OP_SESSIONLESS) {
 420                 memset(op->sym->session, 0, sizeof(struct snow3g_session));
 421                 rte_cryptodev_sym_session_free(op->sym->session);
 422                 op->sym->session = NULL;
 423         }
 424
 425         enqueued_op = rte_ring_enqueue_burst(qp->ingress_queue,
 426                         (void **)&op, processed_op, NULL);
 427         qp->stats.enqueued_count += enqueued_op;
 428         *accumulated_enqueued_ops += enqueued_op;
 429
 430         return enqueued_op;
 431 }
 432
 433 static uint16_t
 434 snow3g_pmd_dequeue_burst(void *queue_pair,
 435                 struct rte_crypto_op **ops, uint16_t nb_ops)
 436 {
 437         struct ipsec_mb_qp *qp = queue_pair;
 438         struct rte_crypto_op *c_ops[SNOW3G_MAX_BURST];
 439         struct rte_crypto_op *curr_c_op;
 440
 441         struct snow3g_session *prev_sess = NULL, *curr_sess = NULL;
 442         uint32_t i;
 443         uint8_t burst_size = 0;
 444         uint16_t enqueued_ops = 0;
 445         uint8_t processed_ops;
 446         uint32_t nb_dequeued;
 447
 448         nb_dequeued = rte_ring_dequeue_burst(qp->ingress_queue,
 449                         (void **)ops, nb_ops, NULL);
 450
 451         for (i = 0; i < nb_dequeued; i++) {
 452                 curr_c_op = ops[i];
 453
 454                 /* Set status as enqueued (not processed yet) by default. */
 455                 curr_c_op->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
 456
 457                 curr_sess = ipsec_mb_get_session_private(qp, curr_c_op);
 458                 if (unlikely(curr_sess == NULL ||
 459                                 curr_sess->op == IPSEC_MB_OP_NOT_SUPPORTED)) {
 460                         curr_c_op->status =
 461                                         RTE_CRYPTO_OP_STATUS_INVALID_SESSION;
 462                         break;
 463                 }
 464
 465                 /* If length/offset is at bit-level,
 466                  * process this buffer alone.
 467                  */
 468                 if (((curr_c_op->sym->cipher.data.length % BYTE_LEN) != 0)
 469                                 || ((curr_c_op->sym->cipher.data.offset
 470                                         % BYTE_LEN) != 0)) {
 471                         /* Process the ops of the previous session. */
 472                         if (prev_sess != NULL) {
 473                                 processed_ops = process_ops(c_ops, prev_sess,
 474                                                 qp, burst_size);
 475                                 if (processed_ops < burst_size) {
 476                                         burst_size = 0;
 477                                         break;
 478                                 }
 479
 480                                 burst_size = 0;
 481                                 prev_sess = NULL;
 482                         }
 483
 484                         processed_ops = process_op_bit(curr_c_op, curr_sess,
 485                                                         qp, &enqueued_ops);
 486                         if (processed_ops != 1)
 487                                 break;
 488
 489                         continue;
 490                 }
 491
 492                 /* Batch ops that share the same session. */
 493                 if (prev_sess == NULL) {
 494                         prev_sess = curr_sess;
 495                         c_ops[burst_size++] = curr_c_op;
 496                 } else if (curr_sess == prev_sess) {
 497                         c_ops[burst_size++] = curr_c_op;
 498                         /*
 499                          * When there are enough ops to process in a batch,
 500                          * process them, and start a new batch.
 501                          */
 502                         if (burst_size == SNOW3G_MAX_BURST) {
 503                                 processed_ops = process_ops(c_ops, prev_sess,
 504                                                 qp, burst_size);
 505                                 if (processed_ops < burst_size) {
 506                                         burst_size = 0;
 507                                         break;
 508                                 }
 509
 510                                 burst_size = 0;
 511                                 prev_sess = NULL;
 512                         }
 513                 } else {
 514                         /*
 515                          * Different session, process the ops
 516                          * of the previous session.
 517                          */
 518                         processed_ops = process_ops(c_ops, prev_sess,
 519                                         qp, burst_size);
 520                         if (processed_ops < burst_size) {
 521                                 burst_size = 0;
 522                                 break;
 523                         }
 524
 525                         burst_size = 0;
 526                         prev_sess = curr_sess;
 527
 528                         c_ops[burst_size++] = curr_c_op;
 529                 }
 530         }
 531
 532         if (burst_size != 0) {
 533                 /* Process the crypto ops of the last session. */
 534                 processed_ops = process_ops(c_ops, prev_sess,
 535                                 qp, burst_size);
 536         }
 537
 538         qp->stats.dequeued_count += i;
 539         return i;
 540 }
 541
 542 struct rte_cryptodev_ops snow3g_pmd_ops = {
 543         .dev_configure = ipsec_mb_config,
 544         .dev_start = ipsec_mb_start,
 545         .dev_stop = ipsec_mb_stop,
 546         .dev_close = ipsec_mb_close,
 547
 548         .stats_get = ipsec_mb_stats_get,
 549         .stats_reset = ipsec_mb_stats_reset,
 550
 551         .dev_infos_get = ipsec_mb_info_get,
 552
 553         .queue_pair_setup = ipsec_mb_qp_setup,
 554         .queue_pair_release = ipsec_mb_qp_release,
 555
 556         .sym_session_get_size = ipsec_mb_sym_session_get_size,
 557         .sym_session_configure = ipsec_mb_sym_session_configure,
 558         .sym_session_clear = ipsec_mb_sym_session_clear
 559 };
 560
 561 struct rte_cryptodev_ops *rte_snow3g_pmd_ops = &snow3g_pmd_ops;
 562
 563 static int
 564 snow3g_probe(struct rte_vdev_device *vdev)
 565 {
 566         return ipsec_mb_create(vdev, IPSEC_MB_PMD_TYPE_SNOW3G);
 567 }
 568
 569 static struct rte_vdev_driver cryptodev_snow3g_pmd_drv = {
 570         .probe = snow3g_probe,
 571         .remove = ipsec_mb_remove
 572 };
 573
 574 static struct cryptodev_driver snow3g_crypto_drv;
 575
 576 RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_SNOW3G_PMD, cryptodev_snow3g_pmd_drv);
 577 RTE_PMD_REGISTER_ALIAS(CRYPTODEV_NAME_SNOW3G_PMD, cryptodev_snow3g_pmd);
 578 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_SNOW3G_PMD,
 579                                "max_nb_queue_pairs=<int> socket_id=<int>");
 580 RTE_PMD_REGISTER_CRYPTO_DRIVER(snow3g_crypto_drv,
 581                                 cryptodev_snow3g_pmd_drv.driver,
 582                                 pmd_driver_id_snow3g);
 583
 584 /* Constructor function to register snow3g PMD */
 585 RTE_INIT(ipsec_mb_register_snow3g)
 586 {
 587         struct ipsec_mb_internals *snow3g_data
 588                 = &ipsec_mb_pmds[IPSEC_MB_PMD_TYPE_SNOW3G];
 589
 590         snow3g_data->caps = snow3g_capabilities;
 591         snow3g_data->dequeue_burst = snow3g_pmd_dequeue_burst;
 592         snow3g_data->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
 593                         RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
 594                         RTE_CRYPTODEV_FF_NON_BYTE_ALIGNED_DATA |
 595                         RTE_CRYPTODEV_FF_SYM_SESSIONLESS |
 596                         RTE_CRYPTODEV_FF_OOP_LB_IN_LB_OUT |
 597                         RTE_CRYPTODEV_FF_DIGEST_ENCRYPTED;
 598         snow3g_data->internals_priv_size = 0;
 599         snow3g_data->ops = &snow3g_pmd_ops;
 600         snow3g_data->qp_priv_size = sizeof(struct snow3g_qp_data);
 601         snow3g_data->session_configure = snow3g_session_configure;
 602         snow3g_data->session_priv_size = sizeof(struct snow3g_session);
 603 }