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_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 /** Get xform chain order. */
  52 static enum kasumi_operation
  53 kasumi_get_mode(const struct rte_crypto_sym_xform *xform)
  54 {
  55         if (xform == NULL)
  56                 return KASUMI_OP_NOT_SUPPORTED;
  57
  58         if (xform->next)
  59                 if (xform->next->next != NULL)
  60                         return KASUMI_OP_NOT_SUPPORTED;
  61
  62         if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH) {
  63                 if (xform->next == NULL)
  64                         return KASUMI_OP_ONLY_AUTH;
  65                 else if (xform->next->type == RTE_CRYPTO_SYM_XFORM_CIPHER)
  66                         return KASUMI_OP_AUTH_CIPHER;
  67                 else
  68                         return KASUMI_OP_NOT_SUPPORTED;
  69         }
  70
  71         if (xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER) {
  72                 if (xform->next == NULL)
  73                         return KASUMI_OP_ONLY_CIPHER;
  74                 else if (xform->next->type == RTE_CRYPTO_SYM_XFORM_AUTH)
  75                         return KASUMI_OP_CIPHER_AUTH;
  76                 else
  77                         return KASUMI_OP_NOT_SUPPORTED;
  78         }
  79
  80         return KASUMI_OP_NOT_SUPPORTED;
  81 }
  82
  83
  84 /** Parse crypto xform chain and set private session parameters. */
  85 int
  86 kasumi_set_session_parameters(struct kasumi_session *sess,
  87                 const struct rte_crypto_sym_xform *xform)
  88 {
  89         const struct rte_crypto_sym_xform *auth_xform = NULL;
  90         const struct rte_crypto_sym_xform *cipher_xform = NULL;
  91         enum kasumi_operation mode;
  92
  93         /* Select Crypto operation - hash then cipher / cipher then hash */
  94         mode = kasumi_get_mode(xform);
  95
  96         switch (mode) {
  97         case KASUMI_OP_CIPHER_AUTH:
  98                 auth_xform = xform->next;
  99                 /* Fall-through */
 100         case KASUMI_OP_ONLY_CIPHER:
 101                 cipher_xform = xform;
 102                 break;
 103         case KASUMI_OP_AUTH_CIPHER:
 104                 cipher_xform = xform->next;
 105                 /* Fall-through */
 106         case KASUMI_OP_ONLY_AUTH:
 107                 auth_xform = xform;
 108                 break;
 109         case KASUMI_OP_NOT_SUPPORTED:
 110         default:
 111                 KASUMI_LOG_ERR("Unsupported operation chain order parameter");
 112                 return -EINVAL;
 113         }
 114
 115         if (cipher_xform) {
 116                 /* Only KASUMI F8 supported */
 117                 if (cipher_xform->cipher.algo != RTE_CRYPTO_CIPHER_KASUMI_F8)
 118                         return -EINVAL;
 119                 /* Initialize key */
 120                 sso_kasumi_init_f8_key_sched(cipher_xform->cipher.key.data,
 121                                 &sess->pKeySched_cipher);
 122         }
 123
 124         if (auth_xform) {
 125                 /* Only KASUMI F9 supported */
 126                 if (auth_xform->auth.algo != RTE_CRYPTO_AUTH_KASUMI_F9)
 127                         return -EINVAL;
 128                 sess->auth_op = auth_xform->auth.op;
 129                 /* Initialize key */
 130                 sso_kasumi_init_f9_key_sched(auth_xform->auth.key.data,
 131                                 &sess->pKeySched_hash);
 132         }
 133
 134
 135         sess->op = mode;
 136
 137         return 0;
 138 }
 139
 140 /** Get KASUMI session. */
 141 static struct kasumi_session *
 142 kasumi_get_session(struct kasumi_qp *qp, struct rte_crypto_op *op)
 143 {
 144         struct kasumi_session *sess;
 145
 146         if (op->sym->sess_type == RTE_CRYPTO_SYM_OP_WITH_SESSION) {
 147                 if (unlikely(op->sym->session->dev_type !=
 148                                 RTE_CRYPTODEV_KASUMI_PMD))
 149                         return NULL;
 150
 151                 sess = (struct kasumi_session *)op->sym->session->_private;
 152         } else  {
 153                 struct rte_cryptodev_session *c_sess = NULL;
 154
 155                 if (rte_mempool_get(qp->sess_mp, (void **)&c_sess))
 156                         return NULL;
 157
 158                 sess = (struct kasumi_session *)c_sess->_private;
 159
 160                 if (unlikely(kasumi_set_session_parameters(sess,
 161                                 op->sym->xform) != 0))
 162                         return NULL;
 163         }
 164
 165         return sess;
 166 }
 167
 168 /** Encrypt/decrypt mbufs with same cipher key. */
 169 static uint8_t
 170 process_kasumi_cipher_op(struct rte_crypto_op **ops,
 171                 struct kasumi_session *session,
 172                 uint8_t num_ops)
 173 {
 174         unsigned i;
 175         uint8_t processed_ops = 0;
 176         uint8_t *src[num_ops], *dst[num_ops];
 177         uint64_t IV[num_ops];
 178         uint32_t num_bytes[num_ops];
 179
 180         for (i = 0; i < num_ops; i++) {
 181                 /* Sanity checks. */
 182                 if (ops[i]->sym->cipher.iv.length != KASUMI_IV_LENGTH) {
 183                         ops[i]->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 184                         KASUMI_LOG_ERR("iv");
 185                         break;
 186                 }
 187
 188                 src[i] = rte_pktmbuf_mtod(ops[i]->sym->m_src, uint8_t *) +
 189                                 (ops[i]->sym->cipher.data.offset >> 3);
 190                 dst[i] = ops[i]->sym->m_dst ?
 191                         rte_pktmbuf_mtod(ops[i]->sym->m_dst, uint8_t *) +
 192                                 (ops[i]->sym->cipher.data.offset >> 3) :
 193                         rte_pktmbuf_mtod(ops[i]->sym->m_src, uint8_t *) +
 194                                 (ops[i]->sym->cipher.data.offset >> 3);
 195                 IV[i] = *((uint64_t *)(ops[i]->sym->cipher.iv.data));
 196                 num_bytes[i] = ops[i]->sym->cipher.data.length >> 3;
 197
 198                 processed_ops++;
 199         }
 200
 201         if (processed_ops != 0)
 202                 sso_kasumi_f8_n_buffer(&session->pKeySched_cipher, IV,
 203                         src, dst, num_bytes, processed_ops);
 204
 205         return processed_ops;
 206 }
 207
 208 /** Encrypt/decrypt mbuf (bit level function). */
 209 static uint8_t
 210 process_kasumi_cipher_op_bit(struct rte_crypto_op *op,
 211                 struct kasumi_session *session)
 212 {
 213         uint8_t *src, *dst;
 214         uint64_t IV;
 215         uint32_t length_in_bits, offset_in_bits;
 216
 217         /* Sanity checks. */
 218         if (unlikely(op->sym->cipher.iv.length != KASUMI_IV_LENGTH)) {
 219                 op->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 220                 KASUMI_LOG_ERR("iv");
 221                 return 0;
 222         }
 223
 224         offset_in_bits = op->sym->cipher.data.offset;
 225         src = rte_pktmbuf_mtod(op->sym->m_src, uint8_t *);
 226         if (op->sym->m_dst == NULL) {
 227                 op->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 228                 KASUMI_LOG_ERR("bit-level in-place not supported\n");
 229                 return 0;
 230         }
 231         dst = rte_pktmbuf_mtod(op->sym->m_dst, uint8_t *);
 232         IV = *((uint64_t *)(op->sym->cipher.iv.data));
 233         length_in_bits = op->sym->cipher.data.length;
 234
 235         sso_kasumi_f8_1_buffer_bit(&session->pKeySched_cipher, IV,
 236                         src, dst, length_in_bits, offset_in_bits);
 237
 238         return 1;
 239 }
 240
 241 /** Generate/verify hash from mbufs with same hash key. */
 242 static int
 243 process_kasumi_hash_op(struct rte_crypto_op **ops,
 244                 struct kasumi_session *session,
 245                 uint8_t num_ops)
 246 {
 247         unsigned i;
 248         uint8_t processed_ops = 0;
 249         uint8_t *src, *dst;
 250         uint32_t length_in_bits;
 251         uint32_t num_bytes;
 252         uint32_t shift_bits;
 253         uint64_t IV;
 254         uint8_t direction;
 255
 256         for (i = 0; i < num_ops; i++) {
 257                 if (unlikely(ops[i]->sym->auth.aad.length != KASUMI_IV_LENGTH)) {
 258                         ops[i]->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 259                         KASUMI_LOG_ERR("aad");
 260                         break;
 261                 }
 262
 263                 if (unlikely(ops[i]->sym->auth.digest.length != KASUMI_DIGEST_LENGTH)) {
 264                         ops[i]->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 265                         KASUMI_LOG_ERR("digest");
 266                         break;
 267                 }
 268
 269                 /* Data must be byte aligned */
 270                 if ((ops[i]->sym->auth.data.offset % BYTE_LEN) != 0) {
 271                         ops[i]->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 272                         KASUMI_LOG_ERR("offset");
 273                         break;
 274                 }
 275
 276                 length_in_bits = ops[i]->sym->auth.data.length;
 277
 278                 src = rte_pktmbuf_mtod(ops[i]->sym->m_src, uint8_t *) +
 279                                 (ops[i]->sym->auth.data.offset >> 3);
 280                 /* IV from AAD */
 281                 IV = *((uint64_t *)(ops[i]->sym->auth.aad.data));
 282                 /* Direction from next bit after end of message */
 283                 num_bytes = (length_in_bits >> 3) + 1;
 284                 shift_bits = (BYTE_LEN - 1 - length_in_bits) % BYTE_LEN;
 285                 direction = (src[num_bytes - 1] >> shift_bits) & 0x01;
 286
 287                 if (session->auth_op == RTE_CRYPTO_AUTH_OP_VERIFY) {
 288                         dst = (uint8_t *)rte_pktmbuf_append(ops[i]->sym->m_src,
 289                                         ops[i]->sym->auth.digest.length);
 290
 291                         sso_kasumi_f9_1_buffer_user(&session->pKeySched_hash,
 292                                         IV, src,
 293                                         length_in_bits, dst, direction);
 294                         /* Verify digest. */
 295                         if (memcmp(dst, ops[i]->sym->auth.digest.data,
 296                                         ops[i]->sym->auth.digest.length) != 0)
 297                                 ops[i]->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
 298
 299                         /* Trim area used for digest from mbuf. */
 300                         rte_pktmbuf_trim(ops[i]->sym->m_src,
 301                                         ops[i]->sym->auth.digest.length);
 302                 } else  {
 303                         dst = ops[i]->sym->auth.digest.data;
 304
 305                         sso_kasumi_f9_1_buffer_user(&session->pKeySched_hash,
 306                                         IV, src,
 307                                         length_in_bits, dst, direction);
 308                 }
 309                 processed_ops++;
 310         }
 311
 312         return processed_ops;
 313 }
 314
 315 /** Process a batch of crypto ops which shares the same session. */
 316 static int
 317 process_ops(struct rte_crypto_op **ops, struct kasumi_session *session,
 318                 struct kasumi_qp *qp, uint8_t num_ops,
 319                 uint16_t *accumulated_enqueued_ops)
 320 {
 321         unsigned i;
 322         unsigned enqueued_ops, processed_ops;
 323
 324         switch (session->op) {
 325         case KASUMI_OP_ONLY_CIPHER:
 326                 processed_ops = process_kasumi_cipher_op(ops,
 327                                 session, num_ops);
 328                 break;
 329         case KASUMI_OP_ONLY_AUTH:
 330                 processed_ops = process_kasumi_hash_op(ops, session,
 331                                 num_ops);
 332                 break;
 333         case KASUMI_OP_CIPHER_AUTH:
 334                 processed_ops = process_kasumi_cipher_op(ops, session,
 335                                 num_ops);
 336                 process_kasumi_hash_op(ops, session, processed_ops);
 337                 break;
 338         case KASUMI_OP_AUTH_CIPHER:
 339                 processed_ops = process_kasumi_hash_op(ops, session,
 340                                 num_ops);
 341                 process_kasumi_cipher_op(ops, session, processed_ops);
 342                 break;
 343         default:
 344                 /* Operation not supported. */
 345                 processed_ops = 0;
 346         }
 347
 348         for (i = 0; i < num_ops; i++) {
 349                 /*
 350                  * If there was no error/authentication failure,
 351                  * change status to successful.
 352                  */
 353                 if (ops[i]->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED)
 354                         ops[i]->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
 355                 /* Free session if a session-less crypto op. */
 356                 if (ops[i]->sym->sess_type == RTE_CRYPTO_SYM_OP_SESSIONLESS) {
 357                         rte_mempool_put(qp->sess_mp, ops[i]->sym->session);
 358                         ops[i]->sym->session = NULL;
 359                 }
 360         }
 361
 362         enqueued_ops = rte_ring_enqueue_burst(qp->processed_ops,
 363                                 (void **)ops, processed_ops, NULL);
 364         qp->qp_stats.enqueued_count += enqueued_ops;
 365         *accumulated_enqueued_ops += enqueued_ops;
 366
 367         return enqueued_ops;
 368 }
 369
 370 /** Process a crypto op with length/offset in bits. */
 371 static int
 372 process_op_bit(struct rte_crypto_op *op, struct kasumi_session *session,
 373                 struct kasumi_qp *qp, uint16_t *accumulated_enqueued_ops)
 374 {
 375         unsigned enqueued_op, processed_op;
 376
 377         switch (session->op) {
 378         case KASUMI_OP_ONLY_CIPHER:
 379                 processed_op = process_kasumi_cipher_op_bit(op,
 380                                 session);
 381                 break;
 382         case KASUMI_OP_ONLY_AUTH:
 383                 processed_op = process_kasumi_hash_op(&op, session, 1);
 384                 break;
 385         case KASUMI_OP_CIPHER_AUTH:
 386                 processed_op = process_kasumi_cipher_op_bit(op, session);
 387                 if (processed_op == 1)
 388                         process_kasumi_hash_op(&op, session, 1);
 389                 break;
 390         case KASUMI_OP_AUTH_CIPHER:
 391                 processed_op = process_kasumi_hash_op(&op, session, 1);
 392                 if (processed_op == 1)
 393                         process_kasumi_cipher_op_bit(op, session);
 394                 break;
 395         default:
 396                 /* Operation not supported. */
 397                 processed_op = 0;
 398         }
 399
 400         /*
 401          * If there was no error/authentication failure,
 402          * change status to successful.
 403          */
 404         if (op->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED)
 405                 op->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
 406
 407         /* Free session if a session-less crypto op. */
 408         if (op->sym->sess_type == RTE_CRYPTO_SYM_OP_SESSIONLESS) {
 409                 rte_mempool_put(qp->sess_mp, op->sym->session);
 410                 op->sym->session = NULL;
 411         }
 412
 413         enqueued_op = rte_ring_enqueue_burst(qp->processed_ops, (void **)&op,
 414                                 processed_op, NULL);
 415         qp->qp_stats.enqueued_count += enqueued_op;
 416         *accumulated_enqueued_ops += enqueued_op;
 417
 418         return enqueued_op;
 419 }
 420
 421 static uint16_t
 422 kasumi_pmd_enqueue_burst(void *queue_pair, struct rte_crypto_op **ops,
 423                 uint16_t nb_ops)
 424 {
 425         struct rte_crypto_op *c_ops[nb_ops];
 426         struct rte_crypto_op *curr_c_op;
 427
 428         struct kasumi_session *prev_sess = NULL, *curr_sess = NULL;
 429         struct kasumi_qp *qp = queue_pair;
 430         unsigned i;
 431         uint8_t burst_size = 0;
 432         uint16_t enqueued_ops = 0;
 433         uint8_t processed_ops;
 434
 435         for (i = 0; i < nb_ops; i++) {
 436                 curr_c_op = ops[i];
 437
 438 #ifdef RTE_LIBRTE_PMD_KASUMI_DEBUG
 439                 if (!rte_pktmbuf_is_contiguous(curr_c_op->sym->m_src) ||
 440                                 (curr_c_op->sym->m_dst != NULL &&
 441                                 !rte_pktmbuf_is_contiguous(
 442                                                 curr_c_op->sym->m_dst))) {
 443                         KASUMI_LOG_ERR("PMD supports only contiguous mbufs, "
 444                                 "op (%p) provides noncontiguous mbuf as "
 445                                 "source/destination buffer.\n", curr_c_op);
 446                         curr_c_op->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 447                         break;
 448                 }
 449 #endif
 450
 451                 /* Set status as enqueued (not processed yet) by default. */
 452                 curr_c_op->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
 453
 454                 curr_sess = kasumi_get_session(qp, curr_c_op);
 455                 if (unlikely(curr_sess == NULL ||
 456                                 curr_sess->op == KASUMI_OP_NOT_SUPPORTED)) {
 457                         curr_c_op->status =
 458                                         RTE_CRYPTO_OP_STATUS_INVALID_SESSION;
 459                         break;
 460                 }
 461
 462                 /* If length/offset is at bit-level, process this buffer alone. */
 463                 if (((curr_c_op->sym->cipher.data.length % BYTE_LEN) != 0)
 464                                 || ((ops[i]->sym->cipher.data.offset
 465                                         % BYTE_LEN) != 0)) {
 466                         /* Process the ops of the previous session. */
 467                         if (prev_sess != NULL) {
 468                                 processed_ops = process_ops(c_ops, prev_sess,
 469                                                 qp, burst_size, &enqueued_ops);
 470                                 if (processed_ops < burst_size) {
 471                                         burst_size = 0;
 472                                         break;
 473                                 }
 474
 475                                 burst_size = 0;
 476                                 prev_sess = NULL;
 477                         }
 478
 479                         processed_ops = process_op_bit(curr_c_op, curr_sess,
 480                                                 qp, &enqueued_ops);
 481                         if (processed_ops != 1)
 482                                 break;
 483
 484                         continue;
 485                 }
 486
 487                 /* Batch ops that share the same session. */
 488                 if (prev_sess == NULL) {
 489                         prev_sess = curr_sess;
 490                         c_ops[burst_size++] = curr_c_op;
 491                 } else if (curr_sess == prev_sess) {
 492                         c_ops[burst_size++] = curr_c_op;
 493                         /*
 494                          * When there are enough ops to process in a batch,
 495                          * process them, and start a new batch.
 496                          */
 497                         if (burst_size == KASUMI_MAX_BURST) {
 498                                 processed_ops = process_ops(c_ops, prev_sess,
 499                                                 qp, burst_size, &enqueued_ops);
 500                                 if (processed_ops < burst_size) {
 501                                         burst_size = 0;
 502                                         break;
 503                                 }
 504
 505                                 burst_size = 0;
 506                                 prev_sess = NULL;
 507                         }
 508                 } else {
 509                         /*
 510                          * Different session, process the ops
 511                          * of the previous session.
 512                          */
 513                         processed_ops = process_ops(c_ops, prev_sess,
 514                                         qp, burst_size, &enqueued_ops);
 515                         if (processed_ops < burst_size) {
 516                                 burst_size = 0;
 517                                 break;
 518                         }
 519
 520                         burst_size = 0;
 521                         prev_sess = curr_sess;
 522
 523                         c_ops[burst_size++] = curr_c_op;
 524                 }
 525         }
 526
 527         if (burst_size != 0) {
 528                 /* Process the crypto ops of the last session. */
 529                 processed_ops = process_ops(c_ops, prev_sess,
 530                                 qp, burst_size, &enqueued_ops);
 531         }
 532
 533         qp->qp_stats.enqueue_err_count += nb_ops - enqueued_ops;
 534         return enqueued_ops;
 535 }
 536
 537 static uint16_t
 538 kasumi_pmd_dequeue_burst(void *queue_pair,
 539                 struct rte_crypto_op **c_ops, uint16_t nb_ops)
 540 {
 541         struct kasumi_qp *qp = queue_pair;
 542
 543         unsigned nb_dequeued;
 544
 545         nb_dequeued = rte_ring_dequeue_burst(qp->processed_ops,
 546                         (void **)c_ops, nb_ops, NULL);
 547         qp->qp_stats.dequeued_count += nb_dequeued;
 548
 549         return nb_dequeued;
 550 }
 551
 552 static int cryptodev_kasumi_remove(struct rte_vdev_device *vdev);
 553
 554 static int
 555 cryptodev_kasumi_create(const char *name,
 556                         struct rte_vdev_device *vdev,
 557                         struct rte_crypto_vdev_init_params *init_params)
 558 {
 559         struct rte_cryptodev *dev;
 560         struct kasumi_private *internals;
 561         uint64_t cpu_flags = 0;
 562
 563         if (init_params->name[0] == '\0')
 564                 snprintf(init_params->name, sizeof(init_params->name),
 565                                 "%s", name);
 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
 571                 cpu_flags |= RTE_CRYPTODEV_FF_CPU_SSE;
 572
 573         dev = rte_cryptodev_vdev_pmd_init(init_params->name,
 574                         sizeof(struct kasumi_private), init_params->socket_id,
 575                         vdev);
 576         if (dev == NULL) {
 577                 KASUMI_LOG_ERR("failed to create cryptodev vdev");
 578                 goto init_error;
 579         }
 580
 581         dev->dev_type = RTE_CRYPTODEV_KASUMI_PMD;
 582         dev->dev_ops = rte_kasumi_pmd_ops;
 583
 584         /* Register RX/TX burst functions for data path. */
 585         dev->dequeue_burst = kasumi_pmd_dequeue_burst;
 586         dev->enqueue_burst = kasumi_pmd_enqueue_burst;
 587
 588         dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
 589                         RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
 590                         cpu_flags;
 591
 592         internals = dev->data->dev_private;
 593
 594         internals->max_nb_queue_pairs = init_params->max_nb_queue_pairs;
 595         internals->max_nb_sessions = init_params->max_nb_sessions;
 596
 597         return 0;
 598 init_error:
 599         KASUMI_LOG_ERR("driver %s: cryptodev_kasumi_create failed",
 600                         init_params->name);
 601
 602         cryptodev_kasumi_remove(vdev);
 603         return -EFAULT;
 604 }
 605
 606 static int
 607 cryptodev_kasumi_probe(struct rte_vdev_device *vdev)
 608 {
 609         struct rte_crypto_vdev_init_params init_params = {
 610                 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_QUEUE_PAIRS,
 611                 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_SESSIONS,
 612                 rte_socket_id(),
 613                 {0}
 614         };
 615         const char *name;
 616         const char *input_args;
 617
 618         name = rte_vdev_device_name(vdev);
 619         if (name == NULL)
 620                 return -EINVAL;
 621         input_args = rte_vdev_device_args(vdev);
 622
 623         rte_cryptodev_vdev_parse_init_params(&init_params, input_args);
 624
 625         RTE_LOG(INFO, PMD, "Initialising %s on NUMA node %d\n", name,
 626                         init_params.socket_id);
 627         if (init_params.name[0] != '\0')
 628                 RTE_LOG(INFO, PMD, "  User defined name = %s\n",
 629                         init_params.name);
 630         RTE_LOG(INFO, PMD, "  Max number of queue pairs = %d\n",
 631                         init_params.max_nb_queue_pairs);
 632         RTE_LOG(INFO, PMD, "  Max number of sessions = %d\n",
 633                         init_params.max_nb_sessions);
 634
 635         return cryptodev_kasumi_create(name, vdev, &init_params);
 636 }
 637
 638 static int
 639 cryptodev_kasumi_remove(struct rte_vdev_device *vdev)
 640 {
 641         const char *name;
 642
 643         name = rte_vdev_device_name(vdev);
 644         if (name == NULL)
 645                 return -EINVAL;
 646
 647         RTE_LOG(INFO, PMD, "Closing KASUMI crypto device %s"
 648                         " on numa socket %u\n",
 649                         name, rte_socket_id());
 650
 651         return 0;
 652 }
 653
 654 static struct rte_vdev_driver cryptodev_kasumi_pmd_drv = {
 655         .probe = cryptodev_kasumi_probe,
 656         .remove = cryptodev_kasumi_remove
 657 };
 658
 659 RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_KASUMI_PMD, cryptodev_kasumi_pmd_drv);
 660 RTE_PMD_REGISTER_ALIAS(CRYPTODEV_NAME_KASUMI_PMD, cryptodev_kasumi_pmd);
 661 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_KASUMI_PMD,
 662         "max_nb_queue_pairs=<int> "
 663         "max_nb_sessions=<int> "
 664         "socket_id=<int>");