drivers/crypto/kasumi/rte_kasumi_pmd.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2016 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_dev.h>
  39 #include <rte_malloc.h>
  40 #include <rte_cpuflags.h>
  41
  42 #include "rte_kasumi_pmd_private.h"
  43
  44 #define KASUMI_KEY_LENGTH 16
  45 #define KASUMI_IV_LENGTH 8
  46 #define KASUMI_DIGEST_LENGTH 4
  47 #define KASUMI_MAX_BURST 4
  48 #define BYTE_LEN 8
  49
  50 /**
  51  * Global static parameter used to create a unique name for each KASUMI
  52  * crypto device.
  53  */
  54 static unsigned unique_name_id;
  55
  56 static inline int
  57 create_unique_device_name(char *name, size_t size)
  58 {
  59         int ret;
  60
  61         if (name == NULL)
  62                 return -EINVAL;
  63
  64         ret = snprintf(name, size, "%s_%u", CRYPTODEV_NAME_KASUMI_PMD,
  65                         unique_name_id++);
  66         if (ret < 0)
  67                 return ret;
  68         return 0;
  69 }
  70
  71 /** Get xform chain order. */
  72 static enum kasumi_operation
  73 kasumi_get_mode(const struct rte_crypto_sym_xform *xform)
  74 {
  75         if (xform == NULL)
  76                 return KASUMI_OP_NOT_SUPPORTED;
  77
  78         if (xform->next)
  79                 if (xform->next->next != NULL)
  80                         return KASUMI_OP_NOT_SUPPORTED;
  81
  82         if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH) {
  83                 if (xform->next == NULL)
  84                         return KASUMI_OP_ONLY_AUTH;
  85                 else if (xform->next->type == RTE_CRYPTO_SYM_XFORM_CIPHER)
  86                         return KASUMI_OP_AUTH_CIPHER;
  87                 else
  88                         return KASUMI_OP_NOT_SUPPORTED;
  89         }
  90
  91         if (xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER) {
  92                 if (xform->next == NULL)
  93                         return KASUMI_OP_ONLY_CIPHER;
  94                 else if (xform->next->type == RTE_CRYPTO_SYM_XFORM_AUTH)
  95                         return KASUMI_OP_CIPHER_AUTH;
  96                 else
  97                         return KASUMI_OP_NOT_SUPPORTED;
  98         }
  99
 100         return KASUMI_OP_NOT_SUPPORTED;
 101 }
 102
 103
 104 /** Parse crypto xform chain and set private session parameters. */
 105 int
 106 kasumi_set_session_parameters(struct kasumi_session *sess,
 107                 const struct rte_crypto_sym_xform *xform)
 108 {
 109         const struct rte_crypto_sym_xform *auth_xform = NULL;
 110         const struct rte_crypto_sym_xform *cipher_xform = NULL;
 111         int mode;
 112
 113         /* Select Crypto operation - hash then cipher / cipher then hash */
 114         mode = kasumi_get_mode(xform);
 115
 116         switch (mode) {
 117         case KASUMI_OP_CIPHER_AUTH:
 118                 auth_xform = xform->next;
 119                 /* Fall-through */
 120         case KASUMI_OP_ONLY_CIPHER:
 121                 cipher_xform = xform;
 122                 break;
 123         case KASUMI_OP_AUTH_CIPHER:
 124                 cipher_xform = xform->next;
 125                 /* Fall-through */
 126         case KASUMI_OP_ONLY_AUTH:
 127                 auth_xform = xform;
 128         }
 129
 130         if (mode == KASUMI_OP_NOT_SUPPORTED) {
 131                 KASUMI_LOG_ERR("Unsupported operation chain order parameter");
 132                 return -EINVAL;
 133         }
 134
 135         if (cipher_xform) {
 136                 /* Only KASUMI F8 supported */
 137                 if (cipher_xform->cipher.algo != RTE_CRYPTO_CIPHER_KASUMI_F8)
 138                         return -EINVAL;
 139                 /* Initialize key */
 140                 sso_kasumi_init_f8_key_sched(xform->cipher.key.data,
 141                                 &sess->pKeySched_cipher);
 142         }
 143
 144         if (auth_xform) {
 145                 /* Only KASUMI F9 supported */
 146                 if (auth_xform->auth.algo != RTE_CRYPTO_AUTH_KASUMI_F9)
 147                         return -EINVAL;
 148                 sess->auth_op = auth_xform->auth.op;
 149                 /* Initialize key */
 150                 sso_kasumi_init_f9_key_sched(xform->auth.key.data,
 151                                 &sess->pKeySched_hash);
 152         }
 153
 154
 155         sess->op = mode;
 156
 157         return 0;
 158 }
 159
 160 /** Get KASUMI session. */
 161 static struct kasumi_session *
 162 kasumi_get_session(struct kasumi_qp *qp, struct rte_crypto_op *op)
 163 {
 164         struct kasumi_session *sess;
 165
 166         if (op->sym->sess_type == RTE_CRYPTO_SYM_OP_WITH_SESSION) {
 167                 if (unlikely(op->sym->session->dev_type !=
 168                                 RTE_CRYPTODEV_KASUMI_PMD))
 169                         return NULL;
 170
 171                 sess = (struct kasumi_session *)op->sym->session->_private;
 172         } else  {
 173                 struct rte_cryptodev_session *c_sess = NULL;
 174
 175                 if (rte_mempool_get(qp->sess_mp, (void **)&c_sess))
 176                         return NULL;
 177
 178                 sess = (struct kasumi_session *)c_sess->_private;
 179
 180                 if (unlikely(kasumi_set_session_parameters(sess,
 181                                 op->sym->xform) != 0))
 182                         return NULL;
 183         }
 184
 185         return sess;
 186 }
 187
 188 /** Encrypt/decrypt mbufs with same cipher key. */
 189 static uint8_t
 190 process_kasumi_cipher_op(struct rte_crypto_op **ops,
 191                 struct kasumi_session *session,
 192                 uint8_t num_ops)
 193 {
 194         unsigned i;
 195         uint8_t processed_ops = 0;
 196         uint8_t *src[num_ops], *dst[num_ops];
 197         uint64_t IV[num_ops];
 198         uint32_t num_bytes[num_ops];
 199
 200         for (i = 0; i < num_ops; i++) {
 201                 /* Sanity checks. */
 202                 if (ops[i]->sym->cipher.iv.length != KASUMI_IV_LENGTH) {
 203                         ops[i]->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 204                         KASUMI_LOG_ERR("iv");
 205                         break;
 206                 }
 207
 208                 src[i] = rte_pktmbuf_mtod(ops[i]->sym->m_src, uint8_t *) +
 209                                 (ops[i]->sym->cipher.data.offset >> 3);
 210                 dst[i] = ops[i]->sym->m_dst ?
 211                         rte_pktmbuf_mtod(ops[i]->sym->m_dst, uint8_t *) +
 212                                 (ops[i]->sym->cipher.data.offset >> 3) :
 213                         rte_pktmbuf_mtod(ops[i]->sym->m_src, uint8_t *) +
 214                                 (ops[i]->sym->cipher.data.offset >> 3);
 215                 IV[i] = *((uint64_t *)(ops[i]->sym->cipher.iv.data));
 216                 num_bytes[i] = ops[i]->sym->cipher.data.length >> 3;
 217
 218                 processed_ops++;
 219         }
 220
 221         if (processed_ops != 0)
 222                 sso_kasumi_f8_n_buffer(&session->pKeySched_cipher, IV,
 223                         src, dst, num_bytes, processed_ops);
 224
 225         return processed_ops;
 226 }
 227
 228 /** Encrypt/decrypt mbuf (bit level function). */
 229 static uint8_t
 230 process_kasumi_cipher_op_bit(struct rte_crypto_op *op,
 231                 struct kasumi_session *session)
 232 {
 233         uint8_t *src, *dst;
 234         uint64_t IV;
 235         uint32_t length_in_bits, offset_in_bits;
 236
 237         /* Sanity checks. */
 238         if (unlikely(op->sym->cipher.iv.length != KASUMI_IV_LENGTH)) {
 239                 op->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 240                 KASUMI_LOG_ERR("iv");
 241                 return 0;
 242         }
 243
 244         offset_in_bits = op->sym->cipher.data.offset;
 245         src = rte_pktmbuf_mtod(op->sym->m_src, uint8_t *);
 246         dst = op->sym->m_dst ?
 247                 rte_pktmbuf_mtod(op->sym->m_dst, uint8_t *) :
 248                 rte_pktmbuf_mtod(op->sym->m_src, uint8_t *);
 249         IV = *((uint64_t *)(op->sym->cipher.iv.data));
 250         length_in_bits = op->sym->cipher.data.length;
 251
 252         sso_kasumi_f8_1_buffer_bit(&session->pKeySched_cipher, IV,
 253                         src, dst, length_in_bits, offset_in_bits);
 254
 255         return 1;
 256 }
 257
 258 /** Generate/verify hash from mbufs with same hash key. */
 259 static int
 260 process_kasumi_hash_op(struct rte_crypto_op **ops,
 261                 struct kasumi_session *session,
 262                 uint8_t num_ops)
 263 {
 264         unsigned i;
 265         uint8_t processed_ops = 0;
 266         uint8_t *src, *dst;
 267         uint32_t length_in_bits;
 268         uint32_t num_bytes;
 269         uint32_t shift_bits;
 270         uint64_t IV;
 271         uint8_t direction;
 272
 273         for (i = 0; i < num_ops; i++) {
 274                 if (unlikely(ops[i]->sym->auth.aad.length != KASUMI_IV_LENGTH)) {
 275                         ops[i]->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 276                         KASUMI_LOG_ERR("aad");
 277                         break;
 278                 }
 279
 280                 if (unlikely(ops[i]->sym->auth.digest.length != KASUMI_DIGEST_LENGTH)) {
 281                         ops[i]->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 282                         KASUMI_LOG_ERR("digest");
 283                         break;
 284                 }
 285
 286                 /* Data must be byte aligned */
 287                 if ((ops[i]->sym->auth.data.offset % BYTE_LEN) != 0) {
 288                         ops[i]->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 289                         KASUMI_LOG_ERR("offset");
 290                         break;
 291                 }
 292
 293                 length_in_bits = ops[i]->sym->auth.data.length;
 294
 295                 src = rte_pktmbuf_mtod(ops[i]->sym->m_src, uint8_t *) +
 296                                 (ops[i]->sym->auth.data.offset >> 3);
 297                 /* IV from AAD */
 298                 IV = *((uint64_t *)(ops[i]->sym->auth.aad.data));
 299                 /* Direction from next bit after end of message */
 300                 num_bytes = (length_in_bits >> 3) + 1;
 301                 shift_bits = (BYTE_LEN - 1 - length_in_bits) % BYTE_LEN;
 302                 direction = (src[num_bytes - 1] >> shift_bits) & 0x01;
 303
 304                 if (session->auth_op == RTE_CRYPTO_AUTH_OP_VERIFY) {
 305                         dst = (uint8_t *)rte_pktmbuf_append(ops[i]->sym->m_src,
 306                                         ops[i]->sym->auth.digest.length);
 307
 308                         sso_kasumi_f9_1_buffer_user(&session->pKeySched_hash,
 309                                         IV, src,
 310                                         length_in_bits, dst, direction);
 311                         /* Verify digest. */
 312                         if (memcmp(dst, ops[i]->sym->auth.digest.data,
 313                                         ops[i]->sym->auth.digest.length) != 0)
 314                                 ops[i]->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
 315
 316                         /* Trim area used for digest from mbuf. */
 317                         rte_pktmbuf_trim(ops[i]->sym->m_src,
 318                                         ops[i]->sym->auth.digest.length);
 319                 } else  {
 320                         dst = ops[i]->sym->auth.digest.data;
 321
 322                         sso_kasumi_f9_1_buffer_user(&session->pKeySched_hash,
 323                                         IV, src,
 324                                         length_in_bits, dst, direction);
 325                 }
 326                 processed_ops++;
 327         }
 328
 329         return processed_ops;
 330 }
 331
 332 /** Process a batch of crypto ops which shares the same session. */
 333 static int
 334 process_ops(struct rte_crypto_op **ops, struct kasumi_session *session,
 335                 struct kasumi_qp *qp, uint8_t num_ops,
 336                 uint16_t *accumulated_enqueued_ops)
 337 {
 338         unsigned i;
 339         unsigned enqueued_ops, processed_ops;
 340
 341         switch (session->op) {
 342         case KASUMI_OP_ONLY_CIPHER:
 343                 processed_ops = process_kasumi_cipher_op(ops,
 344                                 session, num_ops);
 345                 break;
 346         case KASUMI_OP_ONLY_AUTH:
 347                 processed_ops = process_kasumi_hash_op(ops, session,
 348                                 num_ops);
 349                 break;
 350         case KASUMI_OP_CIPHER_AUTH:
 351                 processed_ops = process_kasumi_cipher_op(ops, session,
 352                                 num_ops);
 353                 process_kasumi_hash_op(ops, session, processed_ops);
 354                 break;
 355         case KASUMI_OP_AUTH_CIPHER:
 356                 processed_ops = process_kasumi_hash_op(ops, session,
 357                                 num_ops);
 358                 process_kasumi_cipher_op(ops, session, processed_ops);
 359                 break;
 360         default:
 361                 /* Operation not supported. */
 362                 processed_ops = 0;
 363         }
 364
 365         for (i = 0; i < num_ops; i++) {
 366                 /*
 367                  * If there was no error/authentication failure,
 368                  * change status to successful.
 369                  */
 370                 if (ops[i]->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED)
 371                         ops[i]->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
 372                 /* Free session if a session-less crypto op. */
 373                 if (ops[i]->sym->sess_type == RTE_CRYPTO_SYM_OP_SESSIONLESS) {
 374                         rte_mempool_put(qp->sess_mp, ops[i]->sym->session);
 375                         ops[i]->sym->session = NULL;
 376                 }
 377         }
 378
 379         enqueued_ops = rte_ring_enqueue_burst(qp->processed_ops,
 380                                 (void **)ops, processed_ops);
 381         qp->qp_stats.enqueued_count += enqueued_ops;
 382         *accumulated_enqueued_ops += enqueued_ops;
 383
 384         return enqueued_ops;
 385 }
 386
 387 /** Process a crypto op with length/offset in bits. */
 388 static int
 389 process_op_bit(struct rte_crypto_op *op, struct kasumi_session *session,
 390                 struct kasumi_qp *qp, uint16_t *accumulated_enqueued_ops)
 391 {
 392         unsigned enqueued_op, processed_op;
 393
 394         switch (session->op) {
 395         case KASUMI_OP_ONLY_CIPHER:
 396                 processed_op = process_kasumi_cipher_op_bit(op,
 397                                 session);
 398                 break;
 399         case KASUMI_OP_ONLY_AUTH:
 400                 processed_op = process_kasumi_hash_op(&op, session, 1);
 401                 break;
 402         case KASUMI_OP_CIPHER_AUTH:
 403                 processed_op = process_kasumi_cipher_op_bit(op, session);
 404                 if (processed_op == 1)
 405                         process_kasumi_hash_op(&op, session, 1);
 406                 break;
 407         case KASUMI_OP_AUTH_CIPHER:
 408                 processed_op = process_kasumi_hash_op(&op, session, 1);
 409                 if (processed_op == 1)
 410                         process_kasumi_cipher_op_bit(op, session);
 411                 break;
 412         default:
 413                 /* Operation not supported. */
 414                 processed_op = 0;
 415         }
 416
 417         /*
 418          * If there was no error/authentication failure,
 419          * change status to successful.
 420          */
 421         if (op->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED)
 422                 op->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
 423
 424         /* Free session if a session-less crypto op. */
 425         if (op->sym->sess_type == RTE_CRYPTO_SYM_OP_SESSIONLESS) {
 426                 rte_mempool_put(qp->sess_mp, op->sym->session);
 427                 op->sym->session = NULL;
 428         }
 429
 430         enqueued_op = rte_ring_enqueue_burst(qp->processed_ops, (void **)&op,
 431                                 processed_op);
 432         qp->qp_stats.enqueued_count += enqueued_op;
 433         *accumulated_enqueued_ops += enqueued_op;
 434
 435         return enqueued_op;
 436 }
 437
 438 static uint16_t
 439 kasumi_pmd_enqueue_burst(void *queue_pair, struct rte_crypto_op **ops,
 440                 uint16_t nb_ops)
 441 {
 442         struct rte_crypto_op *c_ops[nb_ops];
 443         struct rte_crypto_op *curr_c_op;
 444
 445         struct kasumi_session *prev_sess = NULL, *curr_sess = NULL;
 446         struct kasumi_qp *qp = queue_pair;
 447         unsigned i;
 448         uint8_t burst_size = 0;
 449         uint16_t enqueued_ops = 0;
 450         uint8_t processed_ops;
 451
 452         for (i = 0; i < nb_ops; i++) {
 453                 curr_c_op = ops[i];
 454
 455                 /* Set status as enqueued (not processed yet) by default. */
 456                 curr_c_op->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
 457
 458                 curr_sess = kasumi_get_session(qp, curr_c_op);
 459                 if (unlikely(curr_sess == NULL ||
 460                                 curr_sess->op == KASUMI_OP_NOT_SUPPORTED)) {
 461                         curr_c_op->status =
 462                                         RTE_CRYPTO_OP_STATUS_INVALID_SESSION;
 463                         break;
 464                 }
 465
 466                 /* If length/offset is at bit-level, process this buffer alone. */
 467                 if (((curr_c_op->sym->cipher.data.length % BYTE_LEN) != 0)
 468                                 || ((ops[i]->sym->cipher.data.offset
 469                                         % BYTE_LEN) != 0)) {
 470                         /* Process the ops of the previous session. */
 471                         if (prev_sess != NULL) {
 472                                 processed_ops = process_ops(c_ops, prev_sess,
 473                                                 qp, burst_size, &enqueued_ops);
 474                                 if (processed_ops < burst_size) {
 475                                         burst_size = 0;
 476                                         break;
 477                                 }
 478
 479                                 burst_size = 0;
 480                                 prev_sess = NULL;
 481                         }
 482
 483                         processed_ops = process_op_bit(curr_c_op, curr_sess,
 484                                                 qp, &enqueued_ops);
 485                         if (processed_ops != 1)
 486                                 break;
 487
 488                         continue;
 489                 }
 490
 491                 /* Batch ops that share the same session. */
 492                 if (prev_sess == NULL) {
 493                         prev_sess = curr_sess;
 494                         c_ops[burst_size++] = curr_c_op;
 495                 } else if (curr_sess == prev_sess) {
 496                         c_ops[burst_size++] = curr_c_op;
 497                         /*
 498                          * When there are enough ops to process in a batch,
 499                          * process them, and start a new batch.
 500                          */
 501                         if (burst_size == KASUMI_MAX_BURST) {
 502                                 processed_ops = process_ops(c_ops, prev_sess,
 503                                                 qp, burst_size, &enqueued_ops);
 504                                 if (processed_ops < burst_size) {
 505                                         burst_size = 0;
 506                                         break;
 507                                 }
 508
 509                                 burst_size = 0;
 510                                 prev_sess = NULL;
 511                         }
 512                 } else {
 513                         /*
 514                          * Different session, process the ops
 515                          * of the previous session.
 516                          */
 517                         processed_ops = process_ops(c_ops, prev_sess,
 518                                         qp, burst_size, &enqueued_ops);
 519                         if (processed_ops < burst_size) {
 520                                 burst_size = 0;
 521                                 break;
 522                         }
 523
 524                         burst_size = 0;
 525                         prev_sess = curr_sess;
 526
 527                         c_ops[burst_size++] = curr_c_op;
 528                 }
 529         }
 530
 531         if (burst_size != 0) {
 532                 /* Process the crypto ops of the last session. */
 533                 processed_ops = process_ops(c_ops, prev_sess,
 534                                 qp, burst_size, &enqueued_ops);
 535         }
 536
 537         qp->qp_stats.enqueue_err_count += nb_ops - enqueued_ops;
 538         return enqueued_ops;
 539 }
 540
 541 static uint16_t
 542 kasumi_pmd_dequeue_burst(void *queue_pair,
 543                 struct rte_crypto_op **c_ops, uint16_t nb_ops)
 544 {
 545         struct kasumi_qp *qp = queue_pair;
 546
 547         unsigned nb_dequeued;
 548
 549         nb_dequeued = rte_ring_dequeue_burst(qp->processed_ops,
 550                         (void **)c_ops, nb_ops);
 551         qp->qp_stats.dequeued_count += nb_dequeued;
 552
 553         return nb_dequeued;
 554 }
 555
 556 static int cryptodev_kasumi_uninit(const char *name);
 557
 558 static int
 559 cryptodev_kasumi_create(const char *name,
 560                 struct rte_crypto_vdev_init_params *init_params)
 561 {
 562         struct rte_cryptodev *dev;
 563         char crypto_dev_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 564         struct kasumi_private *internals;
 565         uint64_t cpu_flags = 0;
 566
 567         /* Check CPU for supported vector instruction set */
 568         if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX))
 569                 cpu_flags |= RTE_CRYPTODEV_FF_CPU_AVX;
 570         else if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_SSE4_1))
 571                 cpu_flags |= RTE_CRYPTODEV_FF_CPU_SSE;
 572         else {
 573                 KASUMI_LOG_ERR("Vector instructions are not supported by CPU");
 574                 return -EFAULT;
 575         }
 576
 577         /* Create a unique device name. */
 578         if (create_unique_device_name(crypto_dev_name,
 579                         RTE_CRYPTODEV_NAME_MAX_LEN) != 0) {
 580                 KASUMI_LOG_ERR("failed to create unique cryptodev name");
 581                 return -EINVAL;
 582         }
 583
 584         dev = rte_cryptodev_pmd_virtual_dev_init(crypto_dev_name,
 585                         sizeof(struct kasumi_private), init_params->socket_id);
 586         if (dev == NULL) {
 587                 KASUMI_LOG_ERR("failed to create cryptodev vdev");
 588                 goto init_error;
 589         }
 590
 591         dev->dev_type = RTE_CRYPTODEV_KASUMI_PMD;
 592         dev->dev_ops = rte_kasumi_pmd_ops;
 593
 594         /* Register RX/TX burst functions for data path. */
 595         dev->dequeue_burst = kasumi_pmd_dequeue_burst;
 596         dev->enqueue_burst = kasumi_pmd_enqueue_burst;
 597
 598         dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
 599                         RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
 600                         cpu_flags;
 601
 602         internals = dev->data->dev_private;
 603
 604         internals->max_nb_queue_pairs = init_params->max_nb_queue_pairs;
 605         internals->max_nb_sessions = init_params->max_nb_sessions;
 606
 607         return 0;
 608 init_error:
 609         KASUMI_LOG_ERR("driver %s: cryptodev_kasumi_create failed", name);
 610
 611         cryptodev_kasumi_uninit(crypto_dev_name);
 612         return -EFAULT;
 613 }
 614
 615 static int
 616 cryptodev_kasumi_init(const char *name,
 617                 const char *input_args)
 618 {
 619         struct rte_crypto_vdev_init_params init_params = {
 620                 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_QUEUE_PAIRS,
 621                 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_SESSIONS,
 622                 rte_socket_id()
 623         };
 624
 625         rte_cryptodev_parse_vdev_init_params(&init_params, input_args);
 626
 627         RTE_LOG(INFO, PMD, "Initialising %s on NUMA node %d\n", name,
 628                         init_params.socket_id);
 629         RTE_LOG(INFO, PMD, "  Max number of queue pairs = %d\n",
 630                         init_params.max_nb_queue_pairs);
 631         RTE_LOG(INFO, PMD, "  Max number of sessions = %d\n",
 632                         init_params.max_nb_sessions);
 633
 634         return cryptodev_kasumi_create(name, &init_params);
 635 }
 636
 637 static int
 638 cryptodev_kasumi_uninit(const char *name)
 639 {
 640         if (name == NULL)
 641                 return -EINVAL;
 642
 643         RTE_LOG(INFO, PMD, "Closing KASUMI crypto device %s"
 644                         " on numa socket %u\n",
 645                         name, rte_socket_id());
 646
 647         return 0;
 648 }
 649
 650 static struct rte_driver cryptodev_kasumi_pmd_drv = {
 651         .name = CRYPTODEV_NAME_KASUMI_PMD,
 652         .type = PMD_VDEV,
 653         .init = cryptodev_kasumi_init,
 654         .uninit = cryptodev_kasumi_uninit
 655 };
 656
 657 PMD_REGISTER_DRIVER(cryptodev_kasumi_pmd_drv);