drivers/crypto/kasumi/rte_kasumi_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_kasumi_pmd_private.h"
  44
  45 #define KASUMI_KEY_LENGTH 16
  46 #define KASUMI_IV_LENGTH 8
  47 #define KASUMI_DIGEST_LENGTH 4
  48 #define KASUMI_MAX_BURST 4
  49 #define BYTE_LEN 8
  50
  51 static uint8_t cryptodev_driver_id;
  52
  53 /** Get xform chain order. */
  54 static enum kasumi_operation
  55 kasumi_get_mode(const struct rte_crypto_sym_xform *xform)
  56 {
  57         if (xform == NULL)
  58                 return KASUMI_OP_NOT_SUPPORTED;
  59
  60         if (xform->next)
  61                 if (xform->next->next != NULL)
  62                         return KASUMI_OP_NOT_SUPPORTED;
  63
  64         if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH) {
  65                 if (xform->next == NULL)
  66                         return KASUMI_OP_ONLY_AUTH;
  67                 else if (xform->next->type == RTE_CRYPTO_SYM_XFORM_CIPHER)
  68                         return KASUMI_OP_AUTH_CIPHER;
  69                 else
  70                         return KASUMI_OP_NOT_SUPPORTED;
  71         }
  72
  73         if (xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER) {
  74                 if (xform->next == NULL)
  75                         return KASUMI_OP_ONLY_CIPHER;
  76                 else if (xform->next->type == RTE_CRYPTO_SYM_XFORM_AUTH)
  77                         return KASUMI_OP_CIPHER_AUTH;
  78                 else
  79                         return KASUMI_OP_NOT_SUPPORTED;
  80         }
  81
  82         return KASUMI_OP_NOT_SUPPORTED;
  83 }
  84
  85
  86 /** Parse crypto xform chain and set private session parameters. */
  87 int
  88 kasumi_set_session_parameters(struct kasumi_session *sess,
  89                 const struct rte_crypto_sym_xform *xform)
  90 {
  91         const struct rte_crypto_sym_xform *auth_xform = NULL;
  92         const struct rte_crypto_sym_xform *cipher_xform = NULL;
  93         enum kasumi_operation mode;
  94
  95         /* Select Crypto operation - hash then cipher / cipher then hash */
  96         mode = kasumi_get_mode(xform);
  97
  98         switch (mode) {
  99         case KASUMI_OP_CIPHER_AUTH:
 100                 auth_xform = xform->next;
 101                 /* Fall-through */
 102         case KASUMI_OP_ONLY_CIPHER:
 103                 cipher_xform = xform;
 104                 break;
 105         case KASUMI_OP_AUTH_CIPHER:
 106                 cipher_xform = xform->next;
 107                 /* Fall-through */
 108         case KASUMI_OP_ONLY_AUTH:
 109                 auth_xform = xform;
 110                 break;
 111         case KASUMI_OP_NOT_SUPPORTED:
 112         default:
 113                 KASUMI_LOG_ERR("Unsupported operation chain order parameter");
 114                 return -EINVAL;
 115         }
 116
 117         if (cipher_xform) {
 118                 /* Only KASUMI F8 supported */
 119                 if (cipher_xform->cipher.algo != RTE_CRYPTO_CIPHER_KASUMI_F8)
 120                         return -EINVAL;
 121
 122                 sess->cipher_iv_offset = cipher_xform->cipher.iv.offset;
 123                 if (cipher_xform->cipher.iv.length != KASUMI_IV_LENGTH) {
 124                         KASUMI_LOG_ERR("Wrong IV length");
 125                         return -EINVAL;
 126                 }
 127
 128                 /* Initialize key */
 129                 sso_kasumi_init_f8_key_sched(cipher_xform->cipher.key.data,
 130                                 &sess->pKeySched_cipher);
 131         }
 132
 133         if (auth_xform) {
 134                 /* Only KASUMI F9 supported */
 135                 if (auth_xform->auth.algo != RTE_CRYPTO_AUTH_KASUMI_F9)
 136                         return -EINVAL;
 137
 138                 if (auth_xform->auth.digest_length != KASUMI_DIGEST_LENGTH) {
 139                         KASUMI_LOG_ERR("Wrong digest length");
 140                         return -EINVAL;
 141                 }
 142
 143                 sess->auth_op = auth_xform->auth.op;
 144
 145                 sess->auth_iv_offset = auth_xform->auth.iv.offset;
 146                 if (auth_xform->auth.iv.length != KASUMI_IV_LENGTH) {
 147                         KASUMI_LOG_ERR("Wrong IV length");
 148                         return -EINVAL;
 149                 }
 150
 151                 /* Initialize key */
 152                 sso_kasumi_init_f9_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 KASUMI session. */
 163 static struct kasumi_session *
 164 kasumi_get_session(struct kasumi_qp *qp, struct rte_crypto_op *op)
 165 {
 166         struct kasumi_session *sess = NULL;
 167
 168         if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION) {
 169                 if (likely(op->sym->session != NULL))
 170                         sess = (struct kasumi_session *)
 171                                         get_session_private_data(
 172                                         op->sym->session,
 173                                         cryptodev_driver_id);
 174         } else {
 175                 void *_sess = NULL;
 176                 void *_sess_private_data = NULL;
 177
 178                 if (rte_mempool_get(qp->sess_mp, (void **)&_sess))
 179                         return NULL;
 180
 181                 if (rte_mempool_get(qp->sess_mp, (void **)&_sess_private_data))
 182                         return NULL;
 183
 184                 sess = (struct kasumi_session *)_sess_private_data;
 185
 186                 if (unlikely(kasumi_set_session_parameters(sess,
 187                                 op->sym->xform) != 0)) {
 188                         rte_mempool_put(qp->sess_mp, _sess);
 189                         rte_mempool_put(qp->sess_mp, _sess_private_data);
 190                         sess = NULL;
 191                 }
 192                 op->sym->session = (struct rte_cryptodev_sym_session *)_sess;
 193                 set_session_private_data(op->sym->session, cryptodev_driver_id,
 194                         _sess_private_data);
 195         }
 196
 197         if (unlikely(sess == NULL))
 198                 op->status = RTE_CRYPTO_OP_STATUS_INVALID_SESSION;
 199
 200         return sess;
 201 }
 202
 203 /** Encrypt/decrypt mbufs with same cipher key. */
 204 static uint8_t
 205 process_kasumi_cipher_op(struct rte_crypto_op **ops,
 206                 struct kasumi_session *session,
 207                 uint8_t num_ops)
 208 {
 209         unsigned i;
 210         uint8_t processed_ops = 0;
 211         uint8_t *src[num_ops], *dst[num_ops];
 212         uint8_t *iv_ptr;
 213         uint64_t iv[num_ops];
 214         uint32_t num_bytes[num_ops];
 215
 216         for (i = 0; i < num_ops; i++) {
 217                 src[i] = rte_pktmbuf_mtod(ops[i]->sym->m_src, uint8_t *) +
 218                                 (ops[i]->sym->cipher.data.offset >> 3);
 219                 dst[i] = ops[i]->sym->m_dst ?
 220                         rte_pktmbuf_mtod(ops[i]->sym->m_dst, uint8_t *) +
 221                                 (ops[i]->sym->cipher.data.offset >> 3) :
 222                         rte_pktmbuf_mtod(ops[i]->sym->m_src, uint8_t *) +
 223                                 (ops[i]->sym->cipher.data.offset >> 3);
 224                 iv_ptr = rte_crypto_op_ctod_offset(ops[i], uint8_t *,
 225                                 session->cipher_iv_offset);
 226                 iv[i] = *((uint64_t *)(iv_ptr));
 227                 num_bytes[i] = ops[i]->sym->cipher.data.length >> 3;
 228
 229                 processed_ops++;
 230         }
 231
 232         if (processed_ops != 0)
 233                 sso_kasumi_f8_n_buffer(&session->pKeySched_cipher, iv,
 234                         src, dst, num_bytes, processed_ops);
 235
 236         return processed_ops;
 237 }
 238
 239 /** Encrypt/decrypt mbuf (bit level function). */
 240 static uint8_t
 241 process_kasumi_cipher_op_bit(struct rte_crypto_op *op,
 242                 struct kasumi_session *session)
 243 {
 244         uint8_t *src, *dst;
 245         uint8_t *iv_ptr;
 246         uint64_t iv;
 247         uint32_t length_in_bits, offset_in_bits;
 248
 249         offset_in_bits = op->sym->cipher.data.offset;
 250         src = rte_pktmbuf_mtod(op->sym->m_src, uint8_t *);
 251         if (op->sym->m_dst == NULL) {
 252                 op->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 253                 KASUMI_LOG_ERR("bit-level in-place not supported\n");
 254                 return 0;
 255         }
 256         dst = rte_pktmbuf_mtod(op->sym->m_dst, uint8_t *);
 257         iv_ptr = rte_crypto_op_ctod_offset(op, uint8_t *,
 258                         session->cipher_iv_offset);
 259         iv = *((uint64_t *)(iv_ptr));
 260         length_in_bits = op->sym->cipher.data.length;
 261
 262         sso_kasumi_f8_1_buffer_bit(&session->pKeySched_cipher, iv,
 263                         src, dst, length_in_bits, offset_in_bits);
 264
 265         return 1;
 266 }
 267
 268 /** Generate/verify hash from mbufs with same hash key. */
 269 static int
 270 process_kasumi_hash_op(struct rte_crypto_op **ops,
 271                 struct kasumi_session *session,
 272                 uint8_t num_ops)
 273 {
 274         unsigned i;
 275         uint8_t processed_ops = 0;
 276         uint8_t *src, *dst;
 277         uint8_t *iv_ptr;
 278         uint32_t length_in_bits;
 279         uint32_t num_bytes;
 280         uint32_t shift_bits;
 281         uint64_t iv;
 282         uint8_t direction;
 283
 284         for (i = 0; i < num_ops; i++) {
 285                 /* Data must be byte aligned */
 286                 if ((ops[i]->sym->auth.data.offset % BYTE_LEN) != 0) {
 287                         ops[i]->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 288                         KASUMI_LOG_ERR("offset");
 289                         break;
 290                 }
 291
 292                 length_in_bits = ops[i]->sym->auth.data.length;
 293
 294                 src = rte_pktmbuf_mtod(ops[i]->sym->m_src, uint8_t *) +
 295                                 (ops[i]->sym->auth.data.offset >> 3);
 296                 iv_ptr = rte_crypto_op_ctod_offset(ops[i], uint8_t *,
 297                                 session->auth_iv_offset);
 298                 iv = *((uint64_t *)(iv_ptr));
 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                                         KASUMI_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                                         KASUMI_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                                         KASUMI_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]->sess_type == RTE_CRYPTO_OP_SESSIONLESS) {
 374                         memset(session, 0, sizeof(struct kasumi_session));
 375                         memset(ops[i]->sym->session, 0,
 376                                         rte_cryptodev_get_header_session_size());
 377                         rte_mempool_put(qp->sess_mp, session);
 378                         rte_mempool_put(qp->sess_mp, ops[i]->sym->session);
 379                         ops[i]->sym->session = NULL;
 380                 }
 381         }
 382
 383         enqueued_ops = rte_ring_enqueue_burst(qp->processed_ops,
 384                                 (void **)ops, processed_ops, NULL);
 385         qp->qp_stats.enqueued_count += enqueued_ops;
 386         *accumulated_enqueued_ops += enqueued_ops;
 387
 388         return enqueued_ops;
 389 }
 390
 391 /** Process a crypto op with length/offset in bits. */
 392 static int
 393 process_op_bit(struct rte_crypto_op *op, struct kasumi_session *session,
 394                 struct kasumi_qp *qp, uint16_t *accumulated_enqueued_ops)
 395 {
 396         unsigned enqueued_op, processed_op;
 397
 398         switch (session->op) {
 399         case KASUMI_OP_ONLY_CIPHER:
 400                 processed_op = process_kasumi_cipher_op_bit(op,
 401                                 session);
 402                 break;
 403         case KASUMI_OP_ONLY_AUTH:
 404                 processed_op = process_kasumi_hash_op(&op, session, 1);
 405                 break;
 406         case KASUMI_OP_CIPHER_AUTH:
 407                 processed_op = process_kasumi_cipher_op_bit(op, session);
 408                 if (processed_op == 1)
 409                         process_kasumi_hash_op(&op, session, 1);
 410                 break;
 411         case KASUMI_OP_AUTH_CIPHER:
 412                 processed_op = process_kasumi_hash_op(&op, session, 1);
 413                 if (processed_op == 1)
 414                         process_kasumi_cipher_op_bit(op, session);
 415                 break;
 416         default:
 417                 /* Operation not supported. */
 418                 processed_op = 0;
 419         }
 420
 421         /*
 422          * If there was no error/authentication failure,
 423          * change status to successful.
 424          */
 425         if (op->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED)
 426                 op->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
 427
 428         /* Free session if a session-less crypto op. */
 429         if (op->sess_type == RTE_CRYPTO_OP_SESSIONLESS) {
 430                 memset(op->sym->session, 0, sizeof(struct kasumi_session));
 431                 rte_cryptodev_sym_session_free(op->sym->session);
 432                 op->sym->session = NULL;
 433         }
 434
 435         enqueued_op = rte_ring_enqueue_burst(qp->processed_ops, (void **)&op,
 436                                 processed_op, NULL);
 437         qp->qp_stats.enqueued_count += enqueued_op;
 438         *accumulated_enqueued_ops += enqueued_op;
 439
 440         return enqueued_op;
 441 }
 442
 443 static uint16_t
 444 kasumi_pmd_enqueue_burst(void *queue_pair, struct rte_crypto_op **ops,
 445                 uint16_t nb_ops)
 446 {
 447         struct rte_crypto_op *c_ops[nb_ops];
 448         struct rte_crypto_op *curr_c_op;
 449
 450         struct kasumi_session *prev_sess = NULL, *curr_sess = NULL;
 451         struct kasumi_qp *qp = queue_pair;
 452         unsigned i;
 453         uint8_t burst_size = 0;
 454         uint16_t enqueued_ops = 0;
 455         uint8_t processed_ops;
 456
 457         for (i = 0; i < nb_ops; i++) {
 458                 curr_c_op = ops[i];
 459
 460 #ifdef RTE_LIBRTE_PMD_KASUMI_DEBUG
 461                 if (!rte_pktmbuf_is_contiguous(curr_c_op->sym->m_src) ||
 462                                 (curr_c_op->sym->m_dst != NULL &&
 463                                 !rte_pktmbuf_is_contiguous(
 464                                                 curr_c_op->sym->m_dst))) {
 465                         KASUMI_LOG_ERR("PMD supports only contiguous mbufs, "
 466                                 "op (%p) provides noncontiguous mbuf as "
 467                                 "source/destination buffer.\n", curr_c_op);
 468                         curr_c_op->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 469                         break;
 470                 }
 471 #endif
 472
 473                 /* Set status as enqueued (not processed yet) by default. */
 474                 curr_c_op->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
 475
 476                 curr_sess = kasumi_get_session(qp, curr_c_op);
 477                 if (unlikely(curr_sess == NULL ||
 478                                 curr_sess->op == KASUMI_OP_NOT_SUPPORTED)) {
 479                         curr_c_op->status =
 480                                         RTE_CRYPTO_OP_STATUS_INVALID_SESSION;
 481                         break;
 482                 }
 483
 484                 /* If length/offset is at bit-level, process this buffer alone. */
 485                 if (((curr_c_op->sym->cipher.data.length % BYTE_LEN) != 0)
 486                                 || ((ops[i]->sym->cipher.data.offset
 487                                         % BYTE_LEN) != 0)) {
 488                         /* Process the ops of the previous session. */
 489                         if (prev_sess != NULL) {
 490                                 processed_ops = process_ops(c_ops, prev_sess,
 491                                                 qp, burst_size, &enqueued_ops);
 492                                 if (processed_ops < burst_size) {
 493                                         burst_size = 0;
 494                                         break;
 495                                 }
 496
 497                                 burst_size = 0;
 498                                 prev_sess = NULL;
 499                         }
 500
 501                         processed_ops = process_op_bit(curr_c_op, curr_sess,
 502                                                 qp, &enqueued_ops);
 503                         if (processed_ops != 1)
 504                                 break;
 505
 506                         continue;
 507                 }
 508
 509                 /* Batch ops that share the same session. */
 510                 if (prev_sess == NULL) {
 511                         prev_sess = curr_sess;
 512                         c_ops[burst_size++] = curr_c_op;
 513                 } else if (curr_sess == prev_sess) {
 514                         c_ops[burst_size++] = curr_c_op;
 515                         /*
 516                          * When there are enough ops to process in a batch,
 517                          * process them, and start a new batch.
 518                          */
 519                         if (burst_size == KASUMI_MAX_BURST) {
 520                                 processed_ops = process_ops(c_ops, prev_sess,
 521                                                 qp, burst_size, &enqueued_ops);
 522                                 if (processed_ops < burst_size) {
 523                                         burst_size = 0;
 524                                         break;
 525                                 }
 526
 527                                 burst_size = 0;
 528                                 prev_sess = NULL;
 529                         }
 530                 } else {
 531                         /*
 532                          * Different session, process the ops
 533                          * of the previous session.
 534                          */
 535                         processed_ops = process_ops(c_ops, prev_sess,
 536                                         qp, burst_size, &enqueued_ops);
 537                         if (processed_ops < burst_size) {
 538                                 burst_size = 0;
 539                                 break;
 540                         }
 541
 542                         burst_size = 0;
 543                         prev_sess = curr_sess;
 544
 545                         c_ops[burst_size++] = curr_c_op;
 546                 }
 547         }
 548
 549         if (burst_size != 0) {
 550                 /* Process the crypto ops of the last session. */
 551                 processed_ops = process_ops(c_ops, prev_sess,
 552                                 qp, burst_size, &enqueued_ops);
 553         }
 554
 555         qp->qp_stats.enqueue_err_count += nb_ops - enqueued_ops;
 556         return enqueued_ops;
 557 }
 558
 559 static uint16_t
 560 kasumi_pmd_dequeue_burst(void *queue_pair,
 561                 struct rte_crypto_op **c_ops, uint16_t nb_ops)
 562 {
 563         struct kasumi_qp *qp = queue_pair;
 564
 565         unsigned nb_dequeued;
 566
 567         nb_dequeued = rte_ring_dequeue_burst(qp->processed_ops,
 568                         (void **)c_ops, nb_ops, NULL);
 569         qp->qp_stats.dequeued_count += nb_dequeued;
 570
 571         return nb_dequeued;
 572 }
 573
 574 static int cryptodev_kasumi_remove(struct rte_vdev_device *vdev);
 575
 576 static int
 577 cryptodev_kasumi_create(const char *name,
 578                         struct rte_vdev_device *vdev,
 579                         struct rte_crypto_vdev_init_params *init_params)
 580 {
 581         struct rte_cryptodev *dev;
 582         struct kasumi_private *internals;
 583         uint64_t cpu_flags = 0;
 584
 585         if (init_params->name[0] == '\0')
 586                 snprintf(init_params->name, sizeof(init_params->name),
 587                                 "%s", name);
 588
 589         /* Check CPU for supported vector instruction set */
 590         if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX))
 591                 cpu_flags |= RTE_CRYPTODEV_FF_CPU_AVX;
 592         else
 593                 cpu_flags |= RTE_CRYPTODEV_FF_CPU_SSE;
 594
 595         dev = rte_cryptodev_vdev_pmd_init(init_params->name,
 596                         sizeof(struct kasumi_private), init_params->socket_id,
 597                         vdev);
 598         if (dev == NULL) {
 599                 KASUMI_LOG_ERR("failed to create cryptodev vdev");
 600                 goto init_error;
 601         }
 602
 603         dev->driver_id = cryptodev_driver_id;
 604         dev->dev_ops = rte_kasumi_pmd_ops;
 605
 606         /* Register RX/TX burst functions for data path. */
 607         dev->dequeue_burst = kasumi_pmd_dequeue_burst;
 608         dev->enqueue_burst = kasumi_pmd_enqueue_burst;
 609
 610         dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
 611                         RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
 612                         cpu_flags;
 613
 614         internals = dev->data->dev_private;
 615
 616         internals->max_nb_queue_pairs = init_params->max_nb_queue_pairs;
 617         internals->max_nb_sessions = init_params->max_nb_sessions;
 618
 619         return 0;
 620 init_error:
 621         KASUMI_LOG_ERR("driver %s: cryptodev_kasumi_create failed",
 622                         init_params->name);
 623
 624         cryptodev_kasumi_remove(vdev);
 625         return -EFAULT;
 626 }
 627
 628 static int
 629 cryptodev_kasumi_probe(struct rte_vdev_device *vdev)
 630 {
 631         struct rte_crypto_vdev_init_params init_params = {
 632                 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_QUEUE_PAIRS,
 633                 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_SESSIONS,
 634                 rte_socket_id(),
 635                 {0}
 636         };
 637         const char *name;
 638         const char *input_args;
 639
 640         name = rte_vdev_device_name(vdev);
 641         if (name == NULL)
 642                 return -EINVAL;
 643         input_args = rte_vdev_device_args(vdev);
 644
 645         rte_cryptodev_vdev_parse_init_params(&init_params, input_args);
 646
 647         RTE_LOG(INFO, PMD, "Initialising %s on NUMA node %d\n", name,
 648                         init_params.socket_id);
 649         if (init_params.name[0] != '\0')
 650                 RTE_LOG(INFO, PMD, "  User defined name = %s\n",
 651                         init_params.name);
 652         RTE_LOG(INFO, PMD, "  Max number of queue pairs = %d\n",
 653                         init_params.max_nb_queue_pairs);
 654         RTE_LOG(INFO, PMD, "  Max number of sessions = %d\n",
 655                         init_params.max_nb_sessions);
 656
 657         return cryptodev_kasumi_create(name, vdev, &init_params);
 658 }
 659
 660 static int
 661 cryptodev_kasumi_remove(struct rte_vdev_device *vdev)
 662 {
 663         const char *name;
 664
 665         name = rte_vdev_device_name(vdev);
 666         if (name == NULL)
 667                 return -EINVAL;
 668
 669         RTE_LOG(INFO, PMD, "Closing KASUMI crypto device %s"
 670                         " on numa socket %u\n",
 671                         name, rte_socket_id());
 672
 673         return 0;
 674 }
 675
 676 static struct rte_vdev_driver cryptodev_kasumi_pmd_drv = {
 677         .probe = cryptodev_kasumi_probe,
 678         .remove = cryptodev_kasumi_remove
 679 };
 680
 681 RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_KASUMI_PMD, cryptodev_kasumi_pmd_drv);
 682 RTE_PMD_REGISTER_ALIAS(CRYPTODEV_NAME_KASUMI_PMD, cryptodev_kasumi_pmd);
 683 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_KASUMI_PMD,
 684         "max_nb_queue_pairs=<int> "
 685         "max_nb_sessions=<int> "
 686         "socket_id=<int>");
 687 RTE_PMD_REGISTER_CRYPTO_DRIVER(cryptodev_kasumi_pmd_drv, cryptodev_driver_id);