LXR dpdk/drivers/crypto/ipsec_mb/pmd

   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. */
   8static int
   9snow3g_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 */
  77static uint8_t *
  78snow3g_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. */
  95static uint8_t
  96process_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). */
 175static uint8_t
 176process_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. */
 226static int
 227process_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. */
 304static int
 305process_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. */
 377static int
 378process_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
 433static uint16_t
 434snow3g_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
 542struct 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
 561struct rte_cryptodev_ops *rte_snow3g_pmd_ops = &snow3g_pmd_ops;
 562
 563static int
 564snow3g_probe(struct rte_vdev_device *vdev)
 565{
 566        return ipsec_mb_create(vdev, IPSEC_MB_PMD_TYPE_SNOW3G);
 567}
 568
 569static struct rte_vdev_driver cryptodev_snow3g_pmd_drv = {
 570        .probe = snow3g_probe,
 571        .remove = ipsec_mb_remove
 572};
 573
 574static struct cryptodev_driver snow3g_crypto_drv;
 575
 576RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_SNOW3G_PMD, cryptodev_snow3g_pmd_drv);
 577RTE_PMD_REGISTER_ALIAS(CRYPTODEV_NAME_SNOW3G_PMD, cryptodev_snow3g_pmd);
 578RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_SNOW3G_PMD,
 579                               "max_nb_queue_pairs=<int> socket_id=<int>");
 580RTE_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 */
 585RTE_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}
 604