drivers/crypto/kasumi/rte_kasumi_pmd.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2016-2017 Intel Corporation
   3  */
   4
   5 #include <rte_common.h>
   6 #include <rte_hexdump.h>
   7 #include <rte_cryptodev.h>
   8 #include <rte_cryptodev_pmd.h>
   9 #include <rte_bus_vdev.h>
  10 #include <rte_malloc.h>
  11 #include <rte_cpuflags.h>
  12
  13 #include "rte_kasumi_pmd_private.h"
  14
  15 #define KASUMI_KEY_LENGTH 16
  16 #define KASUMI_IV_LENGTH 8
  17 #define KASUMI_MAX_BURST 4
  18 #define BYTE_LEN 8
  19
  20 static uint8_t cryptodev_driver_id;
  21
  22 /** Get xform chain order. */
  23 static enum kasumi_operation
  24 kasumi_get_mode(const struct rte_crypto_sym_xform *xform)
  25 {
  26         if (xform == NULL)
  27                 return KASUMI_OP_NOT_SUPPORTED;
  28
  29         if (xform->next)
  30                 if (xform->next->next != NULL)
  31                         return KASUMI_OP_NOT_SUPPORTED;
  32
  33         if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH) {
  34                 if (xform->next == NULL)
  35                         return KASUMI_OP_ONLY_AUTH;
  36                 else if (xform->next->type == RTE_CRYPTO_SYM_XFORM_CIPHER)
  37                         return KASUMI_OP_AUTH_CIPHER;
  38                 else
  39                         return KASUMI_OP_NOT_SUPPORTED;
  40         }
  41
  42         if (xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER) {
  43                 if (xform->next == NULL)
  44                         return KASUMI_OP_ONLY_CIPHER;
  45                 else if (xform->next->type == RTE_CRYPTO_SYM_XFORM_AUTH)
  46                         return KASUMI_OP_CIPHER_AUTH;
  47                 else
  48                         return KASUMI_OP_NOT_SUPPORTED;
  49         }
  50
  51         return KASUMI_OP_NOT_SUPPORTED;
  52 }
  53
  54
  55 /** Parse crypto xform chain and set private session parameters. */
  56 int
  57 kasumi_set_session_parameters(struct kasumi_session *sess,
  58                 const struct rte_crypto_sym_xform *xform)
  59 {
  60         const struct rte_crypto_sym_xform *auth_xform = NULL;
  61         const struct rte_crypto_sym_xform *cipher_xform = NULL;
  62         enum kasumi_operation mode;
  63
  64         /* Select Crypto operation - hash then cipher / cipher then hash */
  65         mode = kasumi_get_mode(xform);
  66
  67         switch (mode) {
  68         case KASUMI_OP_CIPHER_AUTH:
  69                 auth_xform = xform->next;
  70                 /* Fall-through */
  71         case KASUMI_OP_ONLY_CIPHER:
  72                 cipher_xform = xform;
  73                 break;
  74         case KASUMI_OP_AUTH_CIPHER:
  75                 cipher_xform = xform->next;
  76                 /* Fall-through */
  77         case KASUMI_OP_ONLY_AUTH:
  78                 auth_xform = xform;
  79                 break;
  80         case KASUMI_OP_NOT_SUPPORTED:
  81         default:
  82                 KASUMI_LOG_ERR("Unsupported operation chain order parameter");
  83                 return -ENOTSUP;
  84         }
  85
  86         if (cipher_xform) {
  87                 /* Only KASUMI F8 supported */
  88                 if (cipher_xform->cipher.algo != RTE_CRYPTO_CIPHER_KASUMI_F8)
  89                         return -ENOTSUP;
  90
  91                 sess->cipher_iv_offset = cipher_xform->cipher.iv.offset;
  92                 if (cipher_xform->cipher.iv.length != KASUMI_IV_LENGTH) {
  93                         KASUMI_LOG_ERR("Wrong IV length");
  94                         return -EINVAL;
  95                 }
  96
  97                 /* Initialize key */
  98                 sso_kasumi_init_f8_key_sched(cipher_xform->cipher.key.data,
  99                                 &sess->pKeySched_cipher);
 100         }
 101
 102         if (auth_xform) {
 103                 /* Only KASUMI F9 supported */
 104                 if (auth_xform->auth.algo != RTE_CRYPTO_AUTH_KASUMI_F9)
 105                         return -ENOTSUP;
 106
 107                 if (auth_xform->auth.digest_length != KASUMI_DIGEST_LENGTH) {
 108                         KASUMI_LOG_ERR("Wrong digest length");
 109                         return -EINVAL;
 110                 }
 111
 112                 sess->auth_op = auth_xform->auth.op;
 113
 114                 /* Initialize key */
 115                 sso_kasumi_init_f9_key_sched(auth_xform->auth.key.data,
 116                                 &sess->pKeySched_hash);
 117         }
 118
 119
 120         sess->op = mode;
 121
 122         return 0;
 123 }
 124
 125 /** Get KASUMI session. */
 126 static struct kasumi_session *
 127 kasumi_get_session(struct kasumi_qp *qp, struct rte_crypto_op *op)
 128 {
 129         struct kasumi_session *sess = NULL;
 130
 131         if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION) {
 132                 if (likely(op->sym->session != NULL))
 133                         sess = (struct kasumi_session *)
 134                                         get_session_private_data(
 135                                         op->sym->session,
 136                                         cryptodev_driver_id);
 137         } else {
 138                 void *_sess = NULL;
 139                 void *_sess_private_data = NULL;
 140
 141                 if (rte_mempool_get(qp->sess_mp, (void **)&_sess))
 142                         return NULL;
 143
 144                 if (rte_mempool_get(qp->sess_mp, (void **)&_sess_private_data))
 145                         return NULL;
 146
 147                 sess = (struct kasumi_session *)_sess_private_data;
 148
 149                 if (unlikely(kasumi_set_session_parameters(sess,
 150                                 op->sym->xform) != 0)) {
 151                         rte_mempool_put(qp->sess_mp, _sess);
 152                         rte_mempool_put(qp->sess_mp, _sess_private_data);
 153                         sess = NULL;
 154                 }
 155                 op->sym->session = (struct rte_cryptodev_sym_session *)_sess;
 156                 set_session_private_data(op->sym->session, cryptodev_driver_id,
 157                         _sess_private_data);
 158         }
 159
 160         if (unlikely(sess == NULL))
 161                 op->status = RTE_CRYPTO_OP_STATUS_INVALID_SESSION;
 162
 163         return sess;
 164 }
 165
 166 /** Encrypt/decrypt mbufs with same cipher key. */
 167 static uint8_t
 168 process_kasumi_cipher_op(struct rte_crypto_op **ops,
 169                 struct kasumi_session *session,
 170                 uint8_t num_ops)
 171 {
 172         unsigned i;
 173         uint8_t processed_ops = 0;
 174         uint8_t *src[num_ops], *dst[num_ops];
 175         uint8_t *iv_ptr;
 176         uint64_t iv[num_ops];
 177         uint32_t num_bytes[num_ops];
 178
 179         for (i = 0; i < num_ops; i++) {
 180                 src[i] = rte_pktmbuf_mtod(ops[i]->sym->m_src, uint8_t *) +
 181                                 (ops[i]->sym->cipher.data.offset >> 3);
 182                 dst[i] = ops[i]->sym->m_dst ?
 183                         rte_pktmbuf_mtod(ops[i]->sym->m_dst, uint8_t *) +
 184                                 (ops[i]->sym->cipher.data.offset >> 3) :
 185                         rte_pktmbuf_mtod(ops[i]->sym->m_src, uint8_t *) +
 186                                 (ops[i]->sym->cipher.data.offset >> 3);
 187                 iv_ptr = rte_crypto_op_ctod_offset(ops[i], uint8_t *,
 188                                 session->cipher_iv_offset);
 189                 iv[i] = *((uint64_t *)(iv_ptr));
 190                 num_bytes[i] = ops[i]->sym->cipher.data.length >> 3;
 191
 192                 processed_ops++;
 193         }
 194
 195         if (processed_ops != 0)
 196                 sso_kasumi_f8_n_buffer(&session->pKeySched_cipher, iv,
 197                         src, dst, num_bytes, processed_ops);
 198
 199         return processed_ops;
 200 }
 201
 202 /** Encrypt/decrypt mbuf (bit level function). */
 203 static uint8_t
 204 process_kasumi_cipher_op_bit(struct rte_crypto_op *op,
 205                 struct kasumi_session *session)
 206 {
 207         uint8_t *src, *dst;
 208         uint8_t *iv_ptr;
 209         uint64_t iv;
 210         uint32_t length_in_bits, offset_in_bits;
 211
 212         offset_in_bits = op->sym->cipher.data.offset;
 213         src = rte_pktmbuf_mtod(op->sym->m_src, uint8_t *);
 214         if (op->sym->m_dst == NULL) {
 215                 op->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 216                 KASUMI_LOG_ERR("bit-level in-place not supported\n");
 217                 return 0;
 218         }
 219         dst = rte_pktmbuf_mtod(op->sym->m_dst, uint8_t *);
 220         iv_ptr = rte_crypto_op_ctod_offset(op, uint8_t *,
 221                         session->cipher_iv_offset);
 222         iv = *((uint64_t *)(iv_ptr));
 223         length_in_bits = op->sym->cipher.data.length;
 224
 225         sso_kasumi_f8_1_buffer_bit(&session->pKeySched_cipher, iv,
 226                         src, dst, length_in_bits, offset_in_bits);
 227
 228         return 1;
 229 }
 230
 231 /** Generate/verify hash from mbufs with same hash key. */
 232 static int
 233 process_kasumi_hash_op(struct kasumi_qp *qp, struct rte_crypto_op **ops,
 234                 struct kasumi_session *session,
 235                 uint8_t num_ops)
 236 {
 237         unsigned i;
 238         uint8_t processed_ops = 0;
 239         uint8_t *src, *dst;
 240         uint32_t length_in_bits;
 241         uint32_t num_bytes;
 242
 243         for (i = 0; i < num_ops; i++) {
 244                 /* Data must be byte aligned */
 245                 if ((ops[i]->sym->auth.data.offset % BYTE_LEN) != 0) {
 246                         ops[i]->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 247                         KASUMI_LOG_ERR("offset");
 248                         break;
 249                 }
 250
 251                 length_in_bits = ops[i]->sym->auth.data.length;
 252
 253                 src = rte_pktmbuf_mtod(ops[i]->sym->m_src, uint8_t *) +
 254                                 (ops[i]->sym->auth.data.offset >> 3);
 255                 /* Direction from next bit after end of message */
 256                 num_bytes = length_in_bits >> 3;
 257
 258                 if (session->auth_op == RTE_CRYPTO_AUTH_OP_VERIFY) {
 259                         dst = qp->temp_digest;
 260                         sso_kasumi_f9_1_buffer(&session->pKeySched_hash, src,
 261                                         num_bytes, dst);
 262
 263                         /* Verify digest. */
 264                         if (memcmp(dst, ops[i]->sym->auth.digest.data,
 265                                         KASUMI_DIGEST_LENGTH) != 0)
 266                                 ops[i]->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
 267                 } else  {
 268                         dst = ops[i]->sym->auth.digest.data;
 269
 270                         sso_kasumi_f9_1_buffer(&session->pKeySched_hash, src,
 271                                         num_bytes, dst);
 272                 }
 273                 processed_ops++;
 274         }
 275
 276         return processed_ops;
 277 }
 278
 279 /** Process a batch of crypto ops which shares the same session. */
 280 static int
 281 process_ops(struct rte_crypto_op **ops, struct kasumi_session *session,
 282                 struct kasumi_qp *qp, uint8_t num_ops,
 283                 uint16_t *accumulated_enqueued_ops)
 284 {
 285         unsigned i;
 286         unsigned enqueued_ops, processed_ops;
 287
 288         switch (session->op) {
 289         case KASUMI_OP_ONLY_CIPHER:
 290                 processed_ops = process_kasumi_cipher_op(ops,
 291                                 session, num_ops);
 292                 break;
 293         case KASUMI_OP_ONLY_AUTH:
 294                 processed_ops = process_kasumi_hash_op(qp, ops, session,
 295                                 num_ops);
 296                 break;
 297         case KASUMI_OP_CIPHER_AUTH:
 298                 processed_ops = process_kasumi_cipher_op(ops, session,
 299                                 num_ops);
 300                 process_kasumi_hash_op(qp, ops, session, processed_ops);
 301                 break;
 302         case KASUMI_OP_AUTH_CIPHER:
 303                 processed_ops = process_kasumi_hash_op(qp, ops, session,
 304                                 num_ops);
 305                 process_kasumi_cipher_op(ops, session, processed_ops);
 306                 break;
 307         default:
 308                 /* Operation not supported. */
 309                 processed_ops = 0;
 310         }
 311
 312         for (i = 0; i < num_ops; i++) {
 313                 /*
 314                  * If there was no error/authentication failure,
 315                  * change status to successful.
 316                  */
 317                 if (ops[i]->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED)
 318                         ops[i]->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
 319                 /* Free session if a session-less crypto op. */
 320                 if (ops[i]->sess_type == RTE_CRYPTO_OP_SESSIONLESS) {
 321                         memset(session, 0, sizeof(struct kasumi_session));
 322                         memset(ops[i]->sym->session, 0,
 323                                         rte_cryptodev_get_header_session_size());
 324                         rte_mempool_put(qp->sess_mp, session);
 325                         rte_mempool_put(qp->sess_mp, ops[i]->sym->session);
 326                         ops[i]->sym->session = NULL;
 327                 }
 328         }
 329
 330         enqueued_ops = rte_ring_enqueue_burst(qp->processed_ops,
 331                                 (void **)ops, processed_ops, NULL);
 332         qp->qp_stats.enqueued_count += enqueued_ops;
 333         *accumulated_enqueued_ops += enqueued_ops;
 334
 335         return enqueued_ops;
 336 }
 337
 338 /** Process a crypto op with length/offset in bits. */
 339 static int
 340 process_op_bit(struct rte_crypto_op *op, struct kasumi_session *session,
 341                 struct kasumi_qp *qp, uint16_t *accumulated_enqueued_ops)
 342 {
 343         unsigned enqueued_op, processed_op;
 344
 345         switch (session->op) {
 346         case KASUMI_OP_ONLY_CIPHER:
 347                 processed_op = process_kasumi_cipher_op_bit(op,
 348                                 session);
 349                 break;
 350         case KASUMI_OP_ONLY_AUTH:
 351                 processed_op = process_kasumi_hash_op(qp, &op, session, 1);
 352                 break;
 353         case KASUMI_OP_CIPHER_AUTH:
 354                 processed_op = process_kasumi_cipher_op_bit(op, session);
 355                 if (processed_op == 1)
 356                         process_kasumi_hash_op(qp, &op, session, 1);
 357                 break;
 358         case KASUMI_OP_AUTH_CIPHER:
 359                 processed_op = process_kasumi_hash_op(qp, &op, session, 1);
 360                 if (processed_op == 1)
 361                         process_kasumi_cipher_op_bit(op, session);
 362                 break;
 363         default:
 364                 /* Operation not supported. */
 365                 processed_op = 0;
 366         }
 367
 368         /*
 369          * If there was no error/authentication failure,
 370          * change status to successful.
 371          */
 372         if (op->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED)
 373                 op->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
 374
 375         /* Free session if a session-less crypto op. */
 376         if (op->sess_type == RTE_CRYPTO_OP_SESSIONLESS) {
 377                 memset(op->sym->session, 0, sizeof(struct kasumi_session));
 378                 rte_cryptodev_sym_session_free(op->sym->session);
 379                 op->sym->session = NULL;
 380         }
 381
 382         enqueued_op = rte_ring_enqueue_burst(qp->processed_ops, (void **)&op,
 383                                 processed_op, NULL);
 384         qp->qp_stats.enqueued_count += enqueued_op;
 385         *accumulated_enqueued_ops += enqueued_op;
 386
 387         return enqueued_op;
 388 }
 389
 390 static uint16_t
 391 kasumi_pmd_enqueue_burst(void *queue_pair, struct rte_crypto_op **ops,
 392                 uint16_t nb_ops)
 393 {
 394         struct rte_crypto_op *c_ops[nb_ops];
 395         struct rte_crypto_op *curr_c_op;
 396
 397         struct kasumi_session *prev_sess = NULL, *curr_sess = NULL;
 398         struct kasumi_qp *qp = queue_pair;
 399         unsigned i;
 400         uint8_t burst_size = 0;
 401         uint16_t enqueued_ops = 0;
 402         uint8_t processed_ops;
 403
 404         for (i = 0; i < nb_ops; i++) {
 405                 curr_c_op = ops[i];
 406
 407 #ifdef RTE_LIBRTE_PMD_KASUMI_DEBUG
 408                 if (!rte_pktmbuf_is_contiguous(curr_c_op->sym->m_src) ||
 409                                 (curr_c_op->sym->m_dst != NULL &&
 410                                 !rte_pktmbuf_is_contiguous(
 411                                                 curr_c_op->sym->m_dst))) {
 412                         KASUMI_LOG_ERR("PMD supports only contiguous mbufs, "
 413                                 "op (%p) provides noncontiguous mbuf as "
 414                                 "source/destination buffer.\n", curr_c_op);
 415                         curr_c_op->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 416                         break;
 417                 }
 418 #endif
 419
 420                 /* Set status as enqueued (not processed yet) by default. */
 421                 curr_c_op->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
 422
 423                 curr_sess = kasumi_get_session(qp, curr_c_op);
 424                 if (unlikely(curr_sess == NULL ||
 425                                 curr_sess->op == KASUMI_OP_NOT_SUPPORTED)) {
 426                         curr_c_op->status =
 427                                         RTE_CRYPTO_OP_STATUS_INVALID_SESSION;
 428                         break;
 429                 }
 430
 431                 /* If length/offset is at bit-level, process this buffer alone. */
 432                 if (((curr_c_op->sym->cipher.data.length % BYTE_LEN) != 0)
 433                                 || ((ops[i]->sym->cipher.data.offset
 434                                         % BYTE_LEN) != 0)) {
 435                         /* Process the ops of the previous session. */
 436                         if (prev_sess != NULL) {
 437                                 processed_ops = process_ops(c_ops, prev_sess,
 438                                                 qp, burst_size, &enqueued_ops);
 439                                 if (processed_ops < burst_size) {
 440                                         burst_size = 0;
 441                                         break;
 442                                 }
 443
 444                                 burst_size = 0;
 445                                 prev_sess = NULL;
 446                         }
 447
 448                         processed_ops = process_op_bit(curr_c_op, curr_sess,
 449                                                 qp, &enqueued_ops);
 450                         if (processed_ops != 1)
 451                                 break;
 452
 453                         continue;
 454                 }
 455
 456                 /* Batch ops that share the same session. */
 457                 if (prev_sess == NULL) {
 458                         prev_sess = curr_sess;
 459                         c_ops[burst_size++] = curr_c_op;
 460                 } else if (curr_sess == prev_sess) {
 461                         c_ops[burst_size++] = curr_c_op;
 462                         /*
 463                          * When there are enough ops to process in a batch,
 464                          * process them, and start a new batch.
 465                          */
 466                         if (burst_size == KASUMI_MAX_BURST) {
 467                                 processed_ops = process_ops(c_ops, prev_sess,
 468                                                 qp, burst_size, &enqueued_ops);
 469                                 if (processed_ops < burst_size) {
 470                                         burst_size = 0;
 471                                         break;
 472                                 }
 473
 474                                 burst_size = 0;
 475                                 prev_sess = NULL;
 476                         }
 477                 } else {
 478                         /*
 479                          * Different session, process the ops
 480                          * of the previous session.
 481                          */
 482                         processed_ops = process_ops(c_ops, prev_sess,
 483                                         qp, burst_size, &enqueued_ops);
 484                         if (processed_ops < burst_size) {
 485                                 burst_size = 0;
 486                                 break;
 487                         }
 488
 489                         burst_size = 0;
 490                         prev_sess = curr_sess;
 491
 492                         c_ops[burst_size++] = curr_c_op;
 493                 }
 494         }
 495
 496         if (burst_size != 0) {
 497                 /* Process the crypto ops of the last session. */
 498                 processed_ops = process_ops(c_ops, prev_sess,
 499                                 qp, burst_size, &enqueued_ops);
 500         }
 501
 502         qp->qp_stats.enqueue_err_count += nb_ops - enqueued_ops;
 503         return enqueued_ops;
 504 }
 505
 506 static uint16_t
 507 kasumi_pmd_dequeue_burst(void *queue_pair,
 508                 struct rte_crypto_op **c_ops, uint16_t nb_ops)
 509 {
 510         struct kasumi_qp *qp = queue_pair;
 511
 512         unsigned nb_dequeued;
 513
 514         nb_dequeued = rte_ring_dequeue_burst(qp->processed_ops,
 515                         (void **)c_ops, nb_ops, NULL);
 516         qp->qp_stats.dequeued_count += nb_dequeued;
 517
 518         return nb_dequeued;
 519 }
 520
 521 static int cryptodev_kasumi_remove(struct rte_vdev_device *vdev);
 522
 523 static int
 524 cryptodev_kasumi_create(const char *name,
 525                         struct rte_vdev_device *vdev,
 526                         struct rte_cryptodev_pmd_init_params *init_params)
 527 {
 528         struct rte_cryptodev *dev;
 529         struct kasumi_private *internals;
 530         uint64_t cpu_flags = 0;
 531
 532         dev = rte_cryptodev_pmd_create(name, &vdev->device, init_params);
 533         if (dev == NULL) {
 534                 KASUMI_LOG_ERR("failed to create cryptodev vdev");
 535                 goto init_error;
 536         }
 537
 538         /* Check CPU for supported vector instruction set */
 539         if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX))
 540                 cpu_flags |= RTE_CRYPTODEV_FF_CPU_AVX;
 541         else
 542                 cpu_flags |= RTE_CRYPTODEV_FF_CPU_SSE;
 543
 544         dev->driver_id = cryptodev_driver_id;
 545         dev->dev_ops = rte_kasumi_pmd_ops;
 546
 547         /* Register RX/TX burst functions for data path. */
 548         dev->dequeue_burst = kasumi_pmd_dequeue_burst;
 549         dev->enqueue_burst = kasumi_pmd_enqueue_burst;
 550
 551         dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
 552                         RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
 553                         cpu_flags;
 554
 555         internals = dev->data->dev_private;
 556
 557         internals->max_nb_queue_pairs = init_params->max_nb_queue_pairs;
 558         internals->max_nb_sessions = init_params->max_nb_sessions;
 559
 560         return 0;
 561 init_error:
 562         KASUMI_LOG_ERR("driver %s: cryptodev_kasumi_create failed",
 563                         init_params->name);
 564
 565         cryptodev_kasumi_remove(vdev);
 566         return -EFAULT;
 567 }
 568
 569 static int
 570 cryptodev_kasumi_probe(struct rte_vdev_device *vdev)
 571 {
 572         struct rte_cryptodev_pmd_init_params init_params = {
 573                 "",
 574                 sizeof(struct kasumi_private),
 575                 rte_socket_id(),
 576                 RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS,
 577                 RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_SESSIONS
 578         };
 579         const char *name;
 580         const char *input_args;
 581
 582         name = rte_vdev_device_name(vdev);
 583         if (name == NULL)
 584                 return -EINVAL;
 585         input_args = rte_vdev_device_args(vdev);
 586
 587         rte_cryptodev_pmd_parse_input_args(&init_params, input_args);
 588
 589         return cryptodev_kasumi_create(name, vdev, &init_params);
 590 }
 591
 592 static int
 593 cryptodev_kasumi_remove(struct rte_vdev_device *vdev)
 594 {
 595         struct rte_cryptodev *cryptodev;
 596         const char *name;
 597
 598         name = rte_vdev_device_name(vdev);
 599         if (name == NULL)
 600                 return -EINVAL;
 601
 602         cryptodev = rte_cryptodev_pmd_get_named_dev(name);
 603         if (cryptodev == NULL)
 604                 return -ENODEV;
 605
 606         return rte_cryptodev_pmd_destroy(cryptodev);
 607 }
 608
 609 static struct rte_vdev_driver cryptodev_kasumi_pmd_drv = {
 610         .probe = cryptodev_kasumi_probe,
 611         .remove = cryptodev_kasumi_remove
 612 };
 613
 614 static struct cryptodev_driver kasumi_crypto_drv;
 615
 616 RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_KASUMI_PMD, cryptodev_kasumi_pmd_drv);
 617 RTE_PMD_REGISTER_ALIAS(CRYPTODEV_NAME_KASUMI_PMD, cryptodev_kasumi_pmd);
 618 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_KASUMI_PMD,
 619         "max_nb_queue_pairs=<int> "
 620         "max_nb_sessions=<int> "
 621         "socket_id=<int>");
 622 RTE_PMD_REGISTER_CRYPTO_DRIVER(kasumi_crypto_drv, cryptodev_kasumi_pmd_drv,
 623                 cryptodev_driver_id);