drivers/crypto/snow3g/rte_snow3g_pmd.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2016-2017 Intel Corporation. All rights reserved.
   5  *
   6  *   Redistribution and use in source and binary forms, with or without
   7  *   modification, are permitted provided that the following conditions
   8  *   are met:
   9  *
  10  *     * Redistributions of source code must retain the above copyright
  11  *       notice, this list of conditions and the following disclaimer.
  12  *     * Redistributions in binary form must reproduce the above copyright
  13  *       notice, this list of conditions and the following disclaimer in
  14  *       the documentation and/or other materials provided with the
  15  *       distribution.
  16  *     * Neither the name of Intel Corporation nor the names of its
  17  *       contributors may be used to endorse or promote products derived
  18  *       from this software without specific prior written permission.
  19  *
  20  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  23  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  24  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  30  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include <rte_common.h>
  34 #include <rte_config.h>
  35 #include <rte_hexdump.h>
  36 #include <rte_cryptodev.h>
  37 #include <rte_cryptodev_pmd.h>
  38 #include <rte_cryptodev_vdev.h>
  39 #include <rte_vdev.h>
  40 #include <rte_malloc.h>
  41 #include <rte_cpuflags.h>
  42
  43 #include "rte_snow3g_pmd_private.h"
  44
  45 #define SNOW3G_IV_LENGTH 16
  46 #define SNOW3G_DIGEST_LENGTH 4
  47 #define SNOW3G_MAX_BURST 8
  48 #define BYTE_LEN 8
  49
  50 static uint8_t cryptodev_driver_id;
  51
  52 /** Get xform chain order. */
  53 static enum snow3g_operation
  54 snow3g_get_mode(const struct rte_crypto_sym_xform *xform)
  55 {
  56         if (xform == NULL)
  57                 return SNOW3G_OP_NOT_SUPPORTED;
  58
  59         if (xform->next)
  60                 if (xform->next->next != NULL)
  61                         return SNOW3G_OP_NOT_SUPPORTED;
  62
  63         if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH) {
  64                 if (xform->next == NULL)
  65                         return SNOW3G_OP_ONLY_AUTH;
  66                 else if (xform->next->type == RTE_CRYPTO_SYM_XFORM_CIPHER)
  67                         return SNOW3G_OP_AUTH_CIPHER;
  68                 else
  69                         return SNOW3G_OP_NOT_SUPPORTED;
  70         }
  71
  72         if (xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER) {
  73                 if (xform->next == NULL)
  74                         return SNOW3G_OP_ONLY_CIPHER;
  75                 else if (xform->next->type == RTE_CRYPTO_SYM_XFORM_AUTH)
  76                         return SNOW3G_OP_CIPHER_AUTH;
  77                 else
  78                         return SNOW3G_OP_NOT_SUPPORTED;
  79         }
  80
  81         return SNOW3G_OP_NOT_SUPPORTED;
  82 }
  83
  84
  85 /** Parse crypto xform chain and set private session parameters. */
  86 int
  87 snow3g_set_session_parameters(struct snow3g_session *sess,
  88                 const struct rte_crypto_sym_xform *xform)
  89 {
  90         const struct rte_crypto_sym_xform *auth_xform = NULL;
  91         const struct rte_crypto_sym_xform *cipher_xform = NULL;
  92         enum snow3g_operation mode;
  93
  94         /* Select Crypto operation - hash then cipher / cipher then hash */
  95         mode = snow3g_get_mode(xform);
  96
  97         switch (mode) {
  98         case SNOW3G_OP_CIPHER_AUTH:
  99                 auth_xform = xform->next;
 100
 101                 /* Fall-through */
 102         case SNOW3G_OP_ONLY_CIPHER:
 103                 cipher_xform = xform;
 104                 break;
 105         case SNOW3G_OP_AUTH_CIPHER:
 106                 cipher_xform = xform->next;
 107                 /* Fall-through */
 108         case SNOW3G_OP_ONLY_AUTH:
 109                 auth_xform = xform;
 110                 break;
 111         case SNOW3G_OP_NOT_SUPPORTED:
 112         default:
 113                 SNOW3G_LOG_ERR("Unsupported operation chain order parameter");
 114                 return -EINVAL;
 115         }
 116
 117         if (cipher_xform) {
 118                 /* Only SNOW 3G UEA2 supported */
 119                 if (cipher_xform->cipher.algo != RTE_CRYPTO_CIPHER_SNOW3G_UEA2)
 120                         return -EINVAL;
 121
 122                 if (cipher_xform->cipher.iv.length != SNOW3G_IV_LENGTH) {
 123                         SNOW3G_LOG_ERR("Wrong IV length");
 124                         return -EINVAL;
 125                 }
 126                 sess->cipher_iv_offset = cipher_xform->cipher.iv.offset;
 127
 128                 /* Initialize key */
 129                 sso_snow3g_init_key_sched(cipher_xform->cipher.key.data,
 130                                 &sess->pKeySched_cipher);
 131         }
 132
 133         if (auth_xform) {
 134                 /* Only SNOW 3G UIA2 supported */
 135                 if (auth_xform->auth.algo != RTE_CRYPTO_AUTH_SNOW3G_UIA2)
 136                         return -EINVAL;
 137
 138                 if (auth_xform->auth.digest_length != SNOW3G_DIGEST_LENGTH) {
 139                         SNOW3G_LOG_ERR("Wrong digest length");
 140                         return -EINVAL;
 141                 }
 142
 143                 sess->auth_op = auth_xform->auth.op;
 144
 145                 if (auth_xform->auth.iv.length != SNOW3G_IV_LENGTH) {
 146                         SNOW3G_LOG_ERR("Wrong IV length");
 147                         return -EINVAL;
 148                 }
 149                 sess->auth_iv_offset = auth_xform->auth.iv.offset;
 150
 151                 /* Initialize key */
 152                 sso_snow3g_init_key_sched(auth_xform->auth.key.data,
 153                                 &sess->pKeySched_hash);
 154         }
 155
 156
 157         sess->op = mode;
 158
 159         return 0;
 160 }
 161
 162 /** Get SNOW 3G session. */
 163 static struct snow3g_session *
 164 snow3g_get_session(struct snow3g_qp *qp, struct rte_crypto_op *op)
 165 {
 166         struct snow3g_session *sess;
 167
 168         if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION) {
 169                 sess = (struct snow3g_session *)op->sym->session->_private;
 170         } else  {
 171                 struct rte_cryptodev_sym_session *c_sess = NULL;
 172
 173                 if (rte_mempool_get(qp->sess_mp, (void **)&c_sess))
 174                         return NULL;
 175
 176                 sess = (struct snow3g_session *)c_sess->_private;
 177
 178                 if (unlikely(snow3g_set_session_parameters(sess,
 179                                 op->sym->xform) != 0))
 180                         return NULL;
 181         }
 182
 183         return sess;
 184 }
 185
 186 /** Encrypt/decrypt mbufs with same cipher key. */
 187 static uint8_t
 188 process_snow3g_cipher_op(struct rte_crypto_op **ops,
 189                 struct snow3g_session *session,
 190                 uint8_t num_ops)
 191 {
 192         unsigned i;
 193         uint8_t processed_ops = 0;
 194         uint8_t *src[SNOW3G_MAX_BURST], *dst[SNOW3G_MAX_BURST];
 195         uint8_t *iv[SNOW3G_MAX_BURST];
 196         uint32_t num_bytes[SNOW3G_MAX_BURST];
 197
 198         for (i = 0; i < num_ops; i++) {
 199                 src[i] = rte_pktmbuf_mtod(ops[i]->sym->m_src, uint8_t *) +
 200                                 (ops[i]->sym->cipher.data.offset >> 3);
 201                 dst[i] = ops[i]->sym->m_dst ?
 202                         rte_pktmbuf_mtod(ops[i]->sym->m_dst, uint8_t *) +
 203                                 (ops[i]->sym->cipher.data.offset >> 3) :
 204                         rte_pktmbuf_mtod(ops[i]->sym->m_src, uint8_t *) +
 205                                 (ops[i]->sym->cipher.data.offset >> 3);
 206                 iv[i] = rte_crypto_op_ctod_offset(ops[i], uint8_t *,
 207                                 session->cipher_iv_offset);
 208                 num_bytes[i] = ops[i]->sym->cipher.data.length >> 3;
 209
 210                 processed_ops++;
 211         }
 212
 213         sso_snow3g_f8_n_buffer(&session->pKeySched_cipher, iv, src, dst,
 214                         num_bytes, processed_ops);
 215
 216         return processed_ops;
 217 }
 218
 219 /** Encrypt/decrypt mbuf (bit level function). */
 220 static uint8_t
 221 process_snow3g_cipher_op_bit(struct rte_crypto_op *op,
 222                 struct snow3g_session *session)
 223 {
 224         uint8_t *src, *dst;
 225         uint8_t *iv;
 226         uint32_t length_in_bits, offset_in_bits;
 227
 228         offset_in_bits = op->sym->cipher.data.offset;
 229         src = rte_pktmbuf_mtod(op->sym->m_src, uint8_t *);
 230         if (op->sym->m_dst == NULL) {
 231                 op->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 232                 SNOW3G_LOG_ERR("bit-level in-place not supported\n");
 233                 return 0;
 234         }
 235         dst = rte_pktmbuf_mtod(op->sym->m_dst, uint8_t *);
 236         iv = rte_crypto_op_ctod_offset(op, uint8_t *,
 237                                 session->cipher_iv_offset);
 238         length_in_bits = op->sym->cipher.data.length;
 239
 240         sso_snow3g_f8_1_buffer_bit(&session->pKeySched_cipher, iv,
 241                         src, dst, length_in_bits, offset_in_bits);
 242
 243         return 1;
 244 }
 245
 246 /** Generate/verify hash from mbufs with same hash key. */
 247 static int
 248 process_snow3g_hash_op(struct rte_crypto_op **ops,
 249                 struct snow3g_session *session,
 250                 uint8_t num_ops)
 251 {
 252         unsigned i;
 253         uint8_t processed_ops = 0;
 254         uint8_t *src, *dst;
 255         uint32_t length_in_bits;
 256         uint8_t *iv;
 257
 258         for (i = 0; i < num_ops; i++) {
 259                 /* Data must be byte aligned */
 260                 if ((ops[i]->sym->auth.data.offset % BYTE_LEN) != 0) {
 261                         ops[i]->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 262                         SNOW3G_LOG_ERR("Offset");
 263                         break;
 264                 }
 265
 266                 length_in_bits = ops[i]->sym->auth.data.length;
 267
 268                 src = rte_pktmbuf_mtod(ops[i]->sym->m_src, uint8_t *) +
 269                                 (ops[i]->sym->auth.data.offset >> 3);
 270                 iv = rte_crypto_op_ctod_offset(ops[i], uint8_t *,
 271                                 session->auth_iv_offset);
 272
 273                 if (session->auth_op == RTE_CRYPTO_AUTH_OP_VERIFY) {
 274                         dst = (uint8_t *)rte_pktmbuf_append(ops[i]->sym->m_src,
 275                                         SNOW3G_DIGEST_LENGTH);
 276
 277                         sso_snow3g_f9_1_buffer(&session->pKeySched_hash,
 278                                         iv, src,
 279                                         length_in_bits, dst);
 280                         /* Verify digest. */
 281                         if (memcmp(dst, ops[i]->sym->auth.digest.data,
 282                                         SNOW3G_DIGEST_LENGTH) != 0)
 283                                 ops[i]->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
 284
 285                         /* Trim area used for digest from mbuf. */
 286                         rte_pktmbuf_trim(ops[i]->sym->m_src,
 287                                         SNOW3G_DIGEST_LENGTH);
 288                 } else  {
 289                         dst = ops[i]->sym->auth.digest.data;
 290
 291                         sso_snow3g_f9_1_buffer(&session->pKeySched_hash,
 292                                         iv, src,
 293                                         length_in_bits, dst);
 294                 }
 295                 processed_ops++;
 296         }
 297
 298         return processed_ops;
 299 }
 300
 301 /** Process a batch of crypto ops which shares the same session. */
 302 static int
 303 process_ops(struct rte_crypto_op **ops, struct snow3g_session *session,
 304                 struct snow3g_qp *qp, uint8_t num_ops,
 305                 uint16_t *accumulated_enqueued_ops)
 306 {
 307         unsigned i;
 308         unsigned enqueued_ops, processed_ops;
 309
 310 #ifdef RTE_LIBRTE_PMD_SNOW3G_DEBUG
 311         for (i = 0; i < num_ops; i++) {
 312                 if (!rte_pktmbuf_is_contiguous(ops[i]->sym->m_src) ||
 313                                 (ops[i]->sym->m_dst != NULL &&
 314                                 !rte_pktmbuf_is_contiguous(
 315                                                 ops[i]->sym->m_dst))) {
 316                         SNOW3G_LOG_ERR("PMD supports only contiguous mbufs, "
 317                                 "op (%p) provides noncontiguous mbuf as "
 318                                 "source/destination buffer.\n", ops[i]);
 319                         ops[i]->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 320                         return 0;
 321                 }
 322         }
 323 #endif
 324
 325         switch (session->op) {
 326         case SNOW3G_OP_ONLY_CIPHER:
 327                 processed_ops = process_snow3g_cipher_op(ops,
 328                                 session, num_ops);
 329                 break;
 330         case SNOW3G_OP_ONLY_AUTH:
 331                 processed_ops = process_snow3g_hash_op(ops, session,
 332                                 num_ops);
 333                 break;
 334         case SNOW3G_OP_CIPHER_AUTH:
 335                 processed_ops = process_snow3g_cipher_op(ops, session,
 336                                 num_ops);
 337                 process_snow3g_hash_op(ops, session, processed_ops);
 338                 break;
 339         case SNOW3G_OP_AUTH_CIPHER:
 340                 processed_ops = process_snow3g_hash_op(ops, session,
 341                                 num_ops);
 342                 process_snow3g_cipher_op(ops, session, processed_ops);
 343                 break;
 344         default:
 345                 /* Operation not supported. */
 346                 processed_ops = 0;
 347         }
 348
 349         for (i = 0; i < num_ops; i++) {
 350                 /*
 351                  * If there was no error/authentication failure,
 352                  * change status to successful.
 353                  */
 354                 if (ops[i]->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED)
 355                         ops[i]->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
 356                 /* Free session if a session-less crypto op. */
 357                 if (ops[i]->sess_type == RTE_CRYPTO_OP_SESSIONLESS) {
 358                         rte_mempool_put(qp->sess_mp, ops[i]->sym->session);
 359                         ops[i]->sym->session = NULL;
 360                 }
 361         }
 362
 363         enqueued_ops = rte_ring_enqueue_burst(qp->processed_ops,
 364                         (void **)ops, processed_ops, NULL);
 365         qp->qp_stats.enqueued_count += enqueued_ops;
 366         *accumulated_enqueued_ops += enqueued_ops;
 367
 368         return enqueued_ops;
 369 }
 370
 371 /** Process a crypto op with length/offset in bits. */
 372 static int
 373 process_op_bit(struct rte_crypto_op *op, struct snow3g_session *session,
 374                 struct snow3g_qp *qp, uint16_t *accumulated_enqueued_ops)
 375 {
 376         unsigned enqueued_op, processed_op;
 377
 378         switch (session->op) {
 379         case SNOW3G_OP_ONLY_CIPHER:
 380                 processed_op = process_snow3g_cipher_op_bit(op,
 381                                 session);
 382                 break;
 383         case SNOW3G_OP_ONLY_AUTH:
 384                 processed_op = process_snow3g_hash_op(&op, session, 1);
 385                 break;
 386         case SNOW3G_OP_CIPHER_AUTH:
 387                 processed_op = process_snow3g_cipher_op_bit(op, session);
 388                 if (processed_op == 1)
 389                         process_snow3g_hash_op(&op, session, 1);
 390                 break;
 391         case SNOW3G_OP_AUTH_CIPHER:
 392                 processed_op = process_snow3g_hash_op(&op, session, 1);
 393                 if (processed_op == 1)
 394                         process_snow3g_cipher_op_bit(op, session);
 395                 break;
 396         default:
 397                 /* Operation not supported. */
 398                 processed_op = 0;
 399         }
 400
 401         /*
 402          * If there was no error/authentication failure,
 403          * change status to successful.
 404          */
 405         if (op->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED)
 406                 op->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
 407
 408         /* Free session if a session-less crypto op. */
 409         if (op->sess_type == RTE_CRYPTO_OP_SESSIONLESS) {
 410                 rte_mempool_put(qp->sess_mp, op->sym->session);
 411                 op->sym->session = NULL;
 412         }
 413
 414         enqueued_op = rte_ring_enqueue_burst(qp->processed_ops,
 415                         (void **)&op, processed_op, NULL);
 416         qp->qp_stats.enqueued_count += enqueued_op;
 417         *accumulated_enqueued_ops += enqueued_op;
 418
 419         return enqueued_op;
 420 }
 421
 422 static uint16_t
 423 snow3g_pmd_enqueue_burst(void *queue_pair, struct rte_crypto_op **ops,
 424                 uint16_t nb_ops)
 425 {
 426         struct rte_crypto_op *c_ops[SNOW3G_MAX_BURST];
 427         struct rte_crypto_op *curr_c_op;
 428
 429         struct snow3g_session *prev_sess = NULL, *curr_sess = NULL;
 430         struct snow3g_qp *qp = queue_pair;
 431         unsigned i;
 432         uint8_t burst_size = 0;
 433         uint16_t enqueued_ops = 0;
 434         uint8_t processed_ops;
 435
 436         for (i = 0; i < nb_ops; i++) {
 437                 curr_c_op = ops[i];
 438
 439                 /* Set status as enqueued (not processed yet) by default. */
 440                 curr_c_op->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
 441
 442                 curr_sess = snow3g_get_session(qp, curr_c_op);
 443                 if (unlikely(curr_sess == NULL ||
 444                                 curr_sess->op == SNOW3G_OP_NOT_SUPPORTED)) {
 445                         curr_c_op->status =
 446                                         RTE_CRYPTO_OP_STATUS_INVALID_SESSION;
 447                         break;
 448                 }
 449
 450                 /* If length/offset is at bit-level, process this buffer alone. */
 451                 if (((curr_c_op->sym->cipher.data.length % BYTE_LEN) != 0)
 452                                 || ((curr_c_op->sym->cipher.data.offset
 453                                         % BYTE_LEN) != 0)) {
 454                         /* Process the ops of the previous session. */
 455                         if (prev_sess != NULL) {
 456                                 processed_ops = process_ops(c_ops, prev_sess,
 457                                 qp, burst_size, &enqueued_ops);
 458                                 if (processed_ops < burst_size) {
 459                                         burst_size = 0;
 460                                         break;
 461                                 }
 462
 463                                 burst_size = 0;
 464                                 prev_sess = NULL;
 465                         }
 466
 467                         processed_ops = process_op_bit(curr_c_op, curr_sess,
 468                                                         qp, &enqueued_ops);
 469                         if (processed_ops != 1)
 470                                 break;
 471
 472                         continue;
 473                 }
 474
 475                 /* Batch ops that share the same session. */
 476                 if (prev_sess == NULL) {
 477                         prev_sess = curr_sess;
 478                         c_ops[burst_size++] = curr_c_op;
 479                 } else if (curr_sess == prev_sess) {
 480                         c_ops[burst_size++] = curr_c_op;
 481                         /*
 482                          * When there are enough ops to process in a batch,
 483                          * process them, and start a new batch.
 484                          */
 485                         if (burst_size == SNOW3G_MAX_BURST) {
 486                                 processed_ops = process_ops(c_ops, prev_sess,
 487                                                 qp, burst_size, &enqueued_ops);
 488                                 if (processed_ops < burst_size) {
 489                                         burst_size = 0;
 490                                         break;
 491                                 }
 492
 493                                 burst_size = 0;
 494                                 prev_sess = NULL;
 495                         }
 496                 } else {
 497                         /*
 498                          * Different session, process the ops
 499                          * of the previous session.
 500                          */
 501                         processed_ops = process_ops(c_ops, prev_sess,
 502                                         qp, burst_size, &enqueued_ops);
 503                         if (processed_ops < burst_size) {
 504                                 burst_size = 0;
 505                                 break;
 506                         }
 507
 508                         burst_size = 0;
 509                         prev_sess = curr_sess;
 510
 511                         c_ops[burst_size++] = curr_c_op;
 512                 }
 513         }
 514
 515         if (burst_size != 0) {
 516                 /* Process the crypto ops of the last session. */
 517                 processed_ops = process_ops(c_ops, prev_sess,
 518                                 qp, burst_size, &enqueued_ops);
 519         }
 520
 521         qp->qp_stats.enqueue_err_count += nb_ops - enqueued_ops;
 522         return enqueued_ops;
 523 }
 524
 525 static uint16_t
 526 snow3g_pmd_dequeue_burst(void *queue_pair,
 527                 struct rte_crypto_op **c_ops, uint16_t nb_ops)
 528 {
 529         struct snow3g_qp *qp = queue_pair;
 530
 531         unsigned nb_dequeued;
 532
 533         nb_dequeued = rte_ring_dequeue_burst(qp->processed_ops,
 534                         (void **)c_ops, nb_ops, NULL);
 535         qp->qp_stats.dequeued_count += nb_dequeued;
 536
 537         return nb_dequeued;
 538 }
 539
 540 static int cryptodev_snow3g_remove(struct rte_vdev_device *vdev);
 541
 542 static int
 543 cryptodev_snow3g_create(const char *name,
 544                         struct rte_vdev_device *vdev,
 545                         struct rte_crypto_vdev_init_params *init_params)
 546 {
 547         struct rte_cryptodev *dev;
 548         struct snow3g_private *internals;
 549         uint64_t cpu_flags = RTE_CRYPTODEV_FF_CPU_SSE;
 550
 551         if (init_params->name[0] == '\0')
 552                 snprintf(init_params->name, sizeof(init_params->name),
 553                                 "%s", name);
 554
 555         dev = rte_cryptodev_vdev_pmd_init(init_params->name,
 556                         sizeof(struct snow3g_private), init_params->socket_id,
 557                         vdev);
 558         if (dev == NULL) {
 559                 SNOW3G_LOG_ERR("failed to create cryptodev vdev");
 560                 goto init_error;
 561         }
 562
 563         dev->driver_id = cryptodev_driver_id;
 564         dev->dev_ops = rte_snow3g_pmd_ops;
 565
 566         /* Register RX/TX burst functions for data path. */
 567         dev->dequeue_burst = snow3g_pmd_dequeue_burst;
 568         dev->enqueue_burst = snow3g_pmd_enqueue_burst;
 569
 570         dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
 571                         RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
 572                         cpu_flags;
 573
 574         internals = dev->data->dev_private;
 575
 576         internals->max_nb_queue_pairs = init_params->max_nb_queue_pairs;
 577         internals->max_nb_sessions = init_params->max_nb_sessions;
 578
 579         return 0;
 580 init_error:
 581         SNOW3G_LOG_ERR("driver %s: cryptodev_snow3g_create failed",
 582                         init_params->name);
 583
 584         cryptodev_snow3g_remove(vdev);
 585         return -EFAULT;
 586 }
 587
 588 static int
 589 cryptodev_snow3g_probe(struct rte_vdev_device *vdev)
 590 {
 591         struct rte_crypto_vdev_init_params init_params = {
 592                 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_QUEUE_PAIRS,
 593                 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_SESSIONS,
 594                 rte_socket_id(),
 595                 {0}
 596         };
 597         const char *name;
 598         const char *input_args;
 599
 600         name = rte_vdev_device_name(vdev);
 601         if (name == NULL)
 602                 return -EINVAL;
 603         input_args = rte_vdev_device_args(vdev);
 604
 605         rte_cryptodev_vdev_parse_init_params(&init_params, input_args);
 606
 607         RTE_LOG(INFO, PMD, "Initialising %s on NUMA node %d\n", name,
 608                         init_params.socket_id);
 609         if (init_params.name[0] != '\0')
 610                 RTE_LOG(INFO, PMD, "  User defined name = %s\n",
 611                         init_params.name);
 612         RTE_LOG(INFO, PMD, "  Max number of queue pairs = %d\n",
 613                         init_params.max_nb_queue_pairs);
 614         RTE_LOG(INFO, PMD, "  Max number of sessions = %d\n",
 615                         init_params.max_nb_sessions);
 616
 617         return cryptodev_snow3g_create(name, vdev, &init_params);
 618 }
 619
 620 static int
 621 cryptodev_snow3g_remove(struct rte_vdev_device *vdev)
 622 {
 623         const char *name;
 624
 625         name = rte_vdev_device_name(vdev);
 626         if (name == NULL)
 627                 return -EINVAL;
 628
 629         RTE_LOG(INFO, PMD, "Closing SNOW 3G crypto device %s"
 630                         " on numa socket %u\n",
 631                         name, rte_socket_id());
 632
 633         return 0;
 634 }
 635
 636 static struct rte_vdev_driver cryptodev_snow3g_pmd_drv = {
 637         .probe = cryptodev_snow3g_probe,
 638         .remove = cryptodev_snow3g_remove
 639 };
 640
 641 RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_SNOW3G_PMD, cryptodev_snow3g_pmd_drv);
 642 RTE_PMD_REGISTER_ALIAS(CRYPTODEV_NAME_SNOW3G_PMD, cryptodev_snow3g_pmd);
 643 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_SNOW3G_PMD,
 644         "max_nb_queue_pairs=<int> "
 645         "max_nb_sessions=<int> "
 646         "socket_id=<int>");
 647 RTE_PMD_REGISTER_CRYPTO_DRIVER(cryptodev_snow3g_pmd_drv, cryptodev_driver_id);