drivers/crypto/aesni_gcm/aesni_gcm_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 #include <rte_byteorder.h>
  13
  14 #include "aesni_gcm_pmd_private.h"
  15
  16 static uint8_t cryptodev_driver_id;
  17
  18 /** Parse crypto xform chain and set private session parameters */
  19 int
  20 aesni_gcm_set_session_parameters(const struct aesni_gcm_ops *gcm_ops,
  21                 struct aesni_gcm_session *sess,
  22                 const struct rte_crypto_sym_xform *xform)
  23 {
  24         const struct rte_crypto_sym_xform *auth_xform;
  25         const struct rte_crypto_sym_xform *aead_xform;
  26         uint8_t key_length;
  27         const uint8_t *key;
  28
  29         /* AES-GMAC */
  30         if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH) {
  31                 auth_xform = xform;
  32                 if (auth_xform->auth.algo != RTE_CRYPTO_AUTH_AES_GMAC) {
  33                         AESNI_GCM_LOG(ERR, "Only AES GMAC is supported as an "
  34                                 "authentication only algorithm");
  35                         return -ENOTSUP;
  36                 }
  37                 /* Set IV parameters */
  38                 sess->iv.offset = auth_xform->auth.iv.offset;
  39                 sess->iv.length = auth_xform->auth.iv.length;
  40
  41                 /* Select Crypto operation */
  42                 if (auth_xform->auth.op == RTE_CRYPTO_AUTH_OP_GENERATE)
  43                         sess->op = AESNI_GMAC_OP_GENERATE;
  44                 else
  45                         sess->op = AESNI_GMAC_OP_VERIFY;
  46
  47                 key_length = auth_xform->auth.key.length;
  48                 key = auth_xform->auth.key.data;
  49                 sess->req_digest_length = auth_xform->auth.digest_length;
  50
  51         /* AES-GCM */
  52         } else if (xform->type == RTE_CRYPTO_SYM_XFORM_AEAD) {
  53                 aead_xform = xform;
  54
  55                 if (aead_xform->aead.algo != RTE_CRYPTO_AEAD_AES_GCM) {
  56                         AESNI_GCM_LOG(ERR, "The only combined operation "
  57                                                 "supported is AES GCM");
  58                         return -ENOTSUP;
  59                 }
  60
  61                 /* Set IV parameters */
  62                 sess->iv.offset = aead_xform->aead.iv.offset;
  63                 sess->iv.length = aead_xform->aead.iv.length;
  64
  65                 /* Select Crypto operation */
  66                 if (aead_xform->aead.op == RTE_CRYPTO_AEAD_OP_ENCRYPT)
  67                         sess->op = AESNI_GCM_OP_AUTHENTICATED_ENCRYPTION;
  68                 else
  69                         sess->op = AESNI_GCM_OP_AUTHENTICATED_DECRYPTION;
  70
  71                 key_length = aead_xform->aead.key.length;
  72                 key = aead_xform->aead.key.data;
  73
  74                 sess->aad_length = aead_xform->aead.aad_length;
  75                 sess->req_digest_length = aead_xform->aead.digest_length;
  76         } else {
  77                 AESNI_GCM_LOG(ERR, "Wrong xform type, has to be AEAD or authentication");
  78                 return -ENOTSUP;
  79         }
  80
  81
  82         /* IV check */
  83         if (sess->iv.length != 16 && sess->iv.length != 12 &&
  84                         sess->iv.length != 0) {
  85                 AESNI_GCM_LOG(ERR, "Wrong IV length");
  86                 return -EINVAL;
  87         }
  88
  89         /* Check key length and calculate GCM pre-compute. */
  90         switch (key_length) {
  91         case 16:
  92                 sess->key = GCM_KEY_128;
  93                 break;
  94         case 24:
  95                 sess->key = GCM_KEY_192;
  96                 break;
  97         case 32:
  98                 sess->key = GCM_KEY_256;
  99                 break;
 100         default:
 101                 AESNI_GCM_LOG(ERR, "Invalid key length");
 102                 return -EINVAL;
 103         }
 104
 105         gcm_ops[sess->key].pre(key, &sess->gdata_key);
 106
 107         /* Digest check */
 108         if (sess->req_digest_length > 16) {
 109                 AESNI_GCM_LOG(ERR, "Invalid digest length");
 110                 return -EINVAL;
 111         }
 112         /*
 113          * Multi-buffer lib supports digest sizes from 4 to 16 bytes
 114          * in version 0.50 and sizes of 8, 12 and 16 bytes,
 115          * in version 0.49.
 116          * If size requested is different, generate the full digest
 117          * (16 bytes) in a temporary location and then memcpy
 118          * the requested number of bytes.
 119          */
 120 #if IMB_VERSION_NUM >= IMB_VERSION(0, 50, 0)
 121         if (sess->req_digest_length < 4)
 122 #else
 123         if (sess->req_digest_length != 16 &&
 124                         sess->req_digest_length != 12 &&
 125                         sess->req_digest_length != 8)
 126 #endif
 127                 sess->gen_digest_length = 16;
 128         else
 129                 sess->gen_digest_length = sess->req_digest_length;
 130
 131         return 0;
 132 }
 133
 134 /** Get gcm session */
 135 static struct aesni_gcm_session *
 136 aesni_gcm_get_session(struct aesni_gcm_qp *qp, struct rte_crypto_op *op)
 137 {
 138         struct aesni_gcm_session *sess = NULL;
 139         struct rte_crypto_sym_op *sym_op = op->sym;
 140
 141         if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION) {
 142                 if (likely(sym_op->session != NULL))
 143                         sess = (struct aesni_gcm_session *)
 144                                         get_sym_session_private_data(
 145                                         sym_op->session,
 146                                         cryptodev_driver_id);
 147         } else  {
 148                 void *_sess;
 149                 void *_sess_private_data = NULL;
 150
 151                 if (rte_mempool_get(qp->sess_mp, (void **)&_sess))
 152                         return NULL;
 153
 154                 if (rte_mempool_get(qp->sess_mp_priv,
 155                                 (void **)&_sess_private_data))
 156                         return NULL;
 157
 158                 sess = (struct aesni_gcm_session *)_sess_private_data;
 159
 160                 if (unlikely(aesni_gcm_set_session_parameters(qp->ops,
 161                                 sess, sym_op->xform) != 0)) {
 162                         rte_mempool_put(qp->sess_mp, _sess);
 163                         rte_mempool_put(qp->sess_mp_priv, _sess_private_data);
 164                         sess = NULL;
 165                 }
 166                 sym_op->session = (struct rte_cryptodev_sym_session *)_sess;
 167                 set_sym_session_private_data(sym_op->session,
 168                                 cryptodev_driver_id, _sess_private_data);
 169         }
 170
 171         if (unlikely(sess == NULL))
 172                 op->status = RTE_CRYPTO_OP_STATUS_INVALID_SESSION;
 173
 174         return sess;
 175 }
 176
 177 /**
 178  * Process a crypto operation, calling
 179  * the GCM API from the multi buffer library.
 180  *
 181  * @param       qp              queue pair
 182  * @param       op              symmetric crypto operation
 183  * @param       session         GCM session
 184  *
 185  * @return
 186  *
 187  */
 188 static int
 189 process_gcm_crypto_op(struct aesni_gcm_qp *qp, struct rte_crypto_op *op,
 190                 struct aesni_gcm_session *session)
 191 {
 192         uint8_t *src, *dst;
 193         uint8_t *iv_ptr;
 194         struct rte_crypto_sym_op *sym_op = op->sym;
 195         struct rte_mbuf *m_src = sym_op->m_src;
 196         uint32_t offset, data_offset, data_length;
 197         uint32_t part_len, total_len, data_len;
 198         uint8_t *tag;
 199         unsigned int oop = 0;
 200
 201         if (session->op == AESNI_GCM_OP_AUTHENTICATED_ENCRYPTION ||
 202                         session->op == AESNI_GCM_OP_AUTHENTICATED_DECRYPTION) {
 203                 offset = sym_op->aead.data.offset;
 204                 data_offset = offset;
 205                 data_length = sym_op->aead.data.length;
 206         } else {
 207                 offset = sym_op->auth.data.offset;
 208                 data_offset = offset;
 209                 data_length = sym_op->auth.data.length;
 210         }
 211
 212         RTE_ASSERT(m_src != NULL);
 213
 214         while (offset >= m_src->data_len && data_length != 0) {
 215                 offset -= m_src->data_len;
 216                 m_src = m_src->next;
 217
 218                 RTE_ASSERT(m_src != NULL);
 219         }
 220
 221         src = rte_pktmbuf_mtod_offset(m_src, uint8_t *, offset);
 222
 223         data_len = m_src->data_len - offset;
 224         part_len = (data_len < data_length) ? data_len :
 225                         data_length;
 226
 227         RTE_ASSERT((sym_op->m_dst == NULL) ||
 228                         ((sym_op->m_dst != NULL) &&
 229                                         rte_pktmbuf_is_contiguous(sym_op->m_dst)));
 230
 231         /* In-place */
 232         if (sym_op->m_dst == NULL || (sym_op->m_dst == sym_op->m_src))
 233                 dst = src;
 234         /* Out-of-place */
 235         else {
 236                 oop = 1;
 237                 /* Segmented destination buffer is not supported if operation is
 238                  * Out-of-place */
 239                 RTE_ASSERT(rte_pktmbuf_is_contiguous(sym_op->m_dst));
 240                 dst = rte_pktmbuf_mtod_offset(sym_op->m_dst, uint8_t *,
 241                                         data_offset);
 242         }
 243
 244         iv_ptr = rte_crypto_op_ctod_offset(op, uint8_t *,
 245                                 session->iv.offset);
 246
 247         if (session->op == AESNI_GCM_OP_AUTHENTICATED_ENCRYPTION) {
 248                 qp->ops[session->key].init(&session->gdata_key,
 249                                 &qp->gdata_ctx,
 250                                 iv_ptr,
 251                                 sym_op->aead.aad.data,
 252                                 (uint64_t)session->aad_length);
 253
 254                 qp->ops[session->key].update_enc(&session->gdata_key,
 255                                 &qp->gdata_ctx, dst, src,
 256                                 (uint64_t)part_len);
 257                 total_len = data_length - part_len;
 258
 259                 while (total_len) {
 260                         m_src = m_src->next;
 261
 262                         RTE_ASSERT(m_src != NULL);
 263
 264                         src = rte_pktmbuf_mtod(m_src, uint8_t *);
 265                         if (oop)
 266                                 dst += part_len;
 267                         else
 268                                 dst = src;
 269                         part_len = (m_src->data_len < total_len) ?
 270                                         m_src->data_len : total_len;
 271
 272                         qp->ops[session->key].update_enc(&session->gdata_key,
 273                                         &qp->gdata_ctx, dst, src,
 274                                         (uint64_t)part_len);
 275                         total_len -= part_len;
 276                 }
 277
 278                 if (session->req_digest_length != session->gen_digest_length)
 279                         tag = qp->temp_digest;
 280                 else
 281                         tag = sym_op->aead.digest.data;
 282
 283                 qp->ops[session->key].finalize_enc(&session->gdata_key,
 284                                 &qp->gdata_ctx,
 285                                 tag,
 286                                 session->gen_digest_length);
 287         } else if (session->op == AESNI_GCM_OP_AUTHENTICATED_DECRYPTION) {
 288                 qp->ops[session->key].init(&session->gdata_key,
 289                                 &qp->gdata_ctx,
 290                                 iv_ptr,
 291                                 sym_op->aead.aad.data,
 292                                 (uint64_t)session->aad_length);
 293
 294                 qp->ops[session->key].update_dec(&session->gdata_key,
 295                                 &qp->gdata_ctx, dst, src,
 296                                 (uint64_t)part_len);
 297                 total_len = data_length - part_len;
 298
 299                 while (total_len) {
 300                         m_src = m_src->next;
 301
 302                         RTE_ASSERT(m_src != NULL);
 303
 304                         src = rte_pktmbuf_mtod(m_src, uint8_t *);
 305                         if (oop)
 306                                 dst += part_len;
 307                         else
 308                                 dst = src;
 309                         part_len = (m_src->data_len < total_len) ?
 310                                         m_src->data_len : total_len;
 311
 312                         qp->ops[session->key].update_dec(&session->gdata_key,
 313                                         &qp->gdata_ctx,
 314                                         dst, src,
 315                                         (uint64_t)part_len);
 316                         total_len -= part_len;
 317                 }
 318
 319                 tag = qp->temp_digest;
 320                 qp->ops[session->key].finalize_dec(&session->gdata_key,
 321                                 &qp->gdata_ctx,
 322                                 tag,
 323                                 session->gen_digest_length);
 324         } else if (session->op == AESNI_GMAC_OP_GENERATE) {
 325                 qp->ops[session->key].init(&session->gdata_key,
 326                                 &qp->gdata_ctx,
 327                                 iv_ptr,
 328                                 src,
 329                                 (uint64_t)data_length);
 330                 if (session->req_digest_length != session->gen_digest_length)
 331                         tag = qp->temp_digest;
 332                 else
 333                         tag = sym_op->auth.digest.data;
 334                 qp->ops[session->key].finalize_enc(&session->gdata_key,
 335                                 &qp->gdata_ctx,
 336                                 tag,
 337                                 session->gen_digest_length);
 338         } else { /* AESNI_GMAC_OP_VERIFY */
 339                 qp->ops[session->key].init(&session->gdata_key,
 340                                 &qp->gdata_ctx,
 341                                 iv_ptr,
 342                                 src,
 343                                 (uint64_t)data_length);
 344
 345                 /*
 346                  * Generate always 16 bytes and later compare only
 347                  * the bytes passed.
 348                  */
 349                 tag = qp->temp_digest;
 350                 qp->ops[session->key].finalize_enc(&session->gdata_key,
 351                                 &qp->gdata_ctx,
 352                                 tag,
 353                                 session->gen_digest_length);
 354         }
 355
 356         return 0;
 357 }
 358
 359 /**
 360  * Process a completed job and return rte_mbuf which job processed
 361  *
 362  * @param job   JOB_AES_HMAC job to process
 363  *
 364  * @return
 365  * - Returns processed mbuf which is trimmed of output digest used in
 366  * verification of supplied digest in the case of a HASH_CIPHER operation
 367  * - Returns NULL on invalid job
 368  */
 369 static void
 370 post_process_gcm_crypto_op(struct aesni_gcm_qp *qp,
 371                 struct rte_crypto_op *op,
 372                 struct aesni_gcm_session *session)
 373 {
 374         op->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
 375
 376         /* Verify digest if required */
 377         if (session->op == AESNI_GCM_OP_AUTHENTICATED_DECRYPTION ||
 378                         session->op == AESNI_GMAC_OP_VERIFY) {
 379                 uint8_t *digest;
 380
 381                 uint8_t *tag = qp->temp_digest;
 382
 383                 if (session->op == AESNI_GMAC_OP_VERIFY)
 384                         digest = op->sym->auth.digest.data;
 385                 else
 386                         digest = op->sym->aead.digest.data;
 387
 388 #ifdef RTE_LIBRTE_PMD_AESNI_GCM_DEBUG
 389                 rte_hexdump(stdout, "auth tag (orig):",
 390                                 digest, session->req_digest_length);
 391                 rte_hexdump(stdout, "auth tag (calc):",
 392                                 tag, session->req_digest_length);
 393 #endif
 394
 395                 if (memcmp(tag, digest, session->req_digest_length) != 0)
 396                         op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
 397         } else {
 398                 if (session->req_digest_length != session->gen_digest_length) {
 399                         if (session->op == AESNI_GCM_OP_AUTHENTICATED_ENCRYPTION)
 400                                 memcpy(op->sym->aead.digest.data, qp->temp_digest,
 401                                                 session->req_digest_length);
 402                         else
 403                                 memcpy(op->sym->auth.digest.data, qp->temp_digest,
 404                                                 session->req_digest_length);
 405                 }
 406         }
 407 }
 408
 409 /**
 410  * Process a completed GCM request
 411  *
 412  * @param qp            Queue Pair to process
 413  * @param op            Crypto operation
 414  * @param job           JOB_AES_HMAC job
 415  *
 416  * @return
 417  * - Number of processed jobs
 418  */
 419 static void
 420 handle_completed_gcm_crypto_op(struct aesni_gcm_qp *qp,
 421                 struct rte_crypto_op *op,
 422                 struct aesni_gcm_session *sess)
 423 {
 424         post_process_gcm_crypto_op(qp, op, sess);
 425
 426         /* Free session if a session-less crypto op */
 427         if (op->sess_type == RTE_CRYPTO_OP_SESSIONLESS) {
 428                 memset(sess, 0, sizeof(struct aesni_gcm_session));
 429                 memset(op->sym->session, 0,
 430                         rte_cryptodev_sym_get_existing_header_session_size(
 431                                 op->sym->session));
 432                 rte_mempool_put(qp->sess_mp_priv, sess);
 433                 rte_mempool_put(qp->sess_mp, op->sym->session);
 434                 op->sym->session = NULL;
 435         }
 436 }
 437
 438 static uint16_t
 439 aesni_gcm_pmd_dequeue_burst(void *queue_pair,
 440                 struct rte_crypto_op **ops, uint16_t nb_ops)
 441 {
 442         struct aesni_gcm_session *sess;
 443         struct aesni_gcm_qp *qp = queue_pair;
 444
 445         int retval = 0;
 446         unsigned int i, nb_dequeued;
 447
 448         nb_dequeued = rte_ring_dequeue_burst(qp->processed_pkts,
 449                         (void **)ops, nb_ops, NULL);
 450
 451         for (i = 0; i < nb_dequeued; i++) {
 452
 453                 sess = aesni_gcm_get_session(qp, ops[i]);
 454                 if (unlikely(sess == NULL)) {
 455                         ops[i]->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 456                         qp->qp_stats.dequeue_err_count++;
 457                         break;
 458                 }
 459
 460                 retval = process_gcm_crypto_op(qp, ops[i], sess);
 461                 if (retval < 0) {
 462                         ops[i]->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 463                         qp->qp_stats.dequeue_err_count++;
 464                         break;
 465                 }
 466
 467                 handle_completed_gcm_crypto_op(qp, ops[i], sess);
 468         }
 469
 470         qp->qp_stats.dequeued_count += i;
 471
 472         return i;
 473 }
 474
 475 static uint16_t
 476 aesni_gcm_pmd_enqueue_burst(void *queue_pair,
 477                 struct rte_crypto_op **ops, uint16_t nb_ops)
 478 {
 479         struct aesni_gcm_qp *qp = queue_pair;
 480
 481         unsigned int nb_enqueued;
 482
 483         nb_enqueued = rte_ring_enqueue_burst(qp->processed_pkts,
 484                         (void **)ops, nb_ops, NULL);
 485         qp->qp_stats.enqueued_count += nb_enqueued;
 486
 487         return nb_enqueued;
 488 }
 489
 490 static int aesni_gcm_remove(struct rte_vdev_device *vdev);
 491
 492 static int
 493 aesni_gcm_create(const char *name,
 494                 struct rte_vdev_device *vdev,
 495                 struct rte_cryptodev_pmd_init_params *init_params)
 496 {
 497         struct rte_cryptodev *dev;
 498         struct aesni_gcm_private *internals;
 499         enum aesni_gcm_vector_mode vector_mode;
 500         MB_MGR *mb_mgr;
 501
 502         dev = rte_cryptodev_pmd_create(name, &vdev->device, init_params);
 503         if (dev == NULL) {
 504                 AESNI_GCM_LOG(ERR, "driver %s: create failed",
 505                         init_params->name);
 506                 return -ENODEV;
 507         }
 508
 509         /* Check CPU for supported vector instruction set */
 510         if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512F))
 511                 vector_mode = RTE_AESNI_GCM_AVX512;
 512         else if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX2))
 513                 vector_mode = RTE_AESNI_GCM_AVX2;
 514         else if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX))
 515                 vector_mode = RTE_AESNI_GCM_AVX;
 516         else
 517                 vector_mode = RTE_AESNI_GCM_SSE;
 518
 519         dev->driver_id = cryptodev_driver_id;
 520         dev->dev_ops = rte_aesni_gcm_pmd_ops;
 521
 522         /* register rx/tx burst functions for data path */
 523         dev->dequeue_burst = aesni_gcm_pmd_dequeue_burst;
 524         dev->enqueue_burst = aesni_gcm_pmd_enqueue_burst;
 525
 526         dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
 527                         RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
 528                         RTE_CRYPTODEV_FF_IN_PLACE_SGL |
 529                         RTE_CRYPTODEV_FF_OOP_SGL_IN_LB_OUT |
 530                         RTE_CRYPTODEV_FF_OOP_LB_IN_LB_OUT;
 531
 532         /* Check CPU for support for AES instruction set */
 533         if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AES))
 534                 dev->feature_flags |= RTE_CRYPTODEV_FF_CPU_AESNI;
 535         else
 536                 AESNI_GCM_LOG(WARNING, "AES instructions not supported by CPU");
 537
 538         mb_mgr = alloc_mb_mgr(0);
 539         if (mb_mgr == NULL)
 540                 return -ENOMEM;
 541
 542         switch (vector_mode) {
 543         case RTE_AESNI_GCM_SSE:
 544                 dev->feature_flags |= RTE_CRYPTODEV_FF_CPU_SSE;
 545                 init_mb_mgr_sse(mb_mgr);
 546                 break;
 547         case RTE_AESNI_GCM_AVX:
 548                 dev->feature_flags |= RTE_CRYPTODEV_FF_CPU_AVX;
 549                 init_mb_mgr_avx(mb_mgr);
 550                 break;
 551         case RTE_AESNI_GCM_AVX2:
 552                 dev->feature_flags |= RTE_CRYPTODEV_FF_CPU_AVX2;
 553                 init_mb_mgr_avx2(mb_mgr);
 554                 break;
 555         case RTE_AESNI_GCM_AVX512:
 556                 dev->feature_flags |= RTE_CRYPTODEV_FF_CPU_AVX2;
 557                 init_mb_mgr_avx512(mb_mgr);
 558                 break;
 559         default:
 560                 AESNI_GCM_LOG(ERR, "Unsupported vector mode %u\n", vector_mode);
 561                 goto error_exit;
 562         }
 563
 564         internals = dev->data->dev_private;
 565
 566         internals->vector_mode = vector_mode;
 567         internals->mb_mgr = mb_mgr;
 568
 569         /* Set arch independent function pointers, based on key size */
 570         internals->ops[GCM_KEY_128].enc = mb_mgr->gcm128_enc;
 571         internals->ops[GCM_KEY_128].dec = mb_mgr->gcm128_dec;
 572         internals->ops[GCM_KEY_128].pre = mb_mgr->gcm128_pre;
 573         internals->ops[GCM_KEY_128].init = mb_mgr->gcm128_init;
 574         internals->ops[GCM_KEY_128].update_enc = mb_mgr->gcm128_enc_update;
 575         internals->ops[GCM_KEY_128].update_dec = mb_mgr->gcm128_dec_update;
 576         internals->ops[GCM_KEY_128].finalize_enc = mb_mgr->gcm128_enc_finalize;
 577         internals->ops[GCM_KEY_128].finalize_dec = mb_mgr->gcm128_dec_finalize;
 578
 579         internals->ops[GCM_KEY_192].enc = mb_mgr->gcm192_enc;
 580         internals->ops[GCM_KEY_192].dec = mb_mgr->gcm192_dec;
 581         internals->ops[GCM_KEY_192].pre = mb_mgr->gcm192_pre;
 582         internals->ops[GCM_KEY_192].init = mb_mgr->gcm192_init;
 583         internals->ops[GCM_KEY_192].update_enc = mb_mgr->gcm192_enc_update;
 584         internals->ops[GCM_KEY_192].update_dec = mb_mgr->gcm192_dec_update;
 585         internals->ops[GCM_KEY_192].finalize_enc = mb_mgr->gcm192_enc_finalize;
 586         internals->ops[GCM_KEY_192].finalize_dec = mb_mgr->gcm192_dec_finalize;
 587
 588         internals->ops[GCM_KEY_256].enc = mb_mgr->gcm256_enc;
 589         internals->ops[GCM_KEY_256].dec = mb_mgr->gcm256_dec;
 590         internals->ops[GCM_KEY_256].pre = mb_mgr->gcm256_pre;
 591         internals->ops[GCM_KEY_256].init = mb_mgr->gcm256_init;
 592         internals->ops[GCM_KEY_256].update_enc = mb_mgr->gcm256_enc_update;
 593         internals->ops[GCM_KEY_256].update_dec = mb_mgr->gcm256_dec_update;
 594         internals->ops[GCM_KEY_256].finalize_enc = mb_mgr->gcm256_enc_finalize;
 595         internals->ops[GCM_KEY_256].finalize_dec = mb_mgr->gcm256_dec_finalize;
 596
 597         internals->max_nb_queue_pairs = init_params->max_nb_queue_pairs;
 598
 599 #if IMB_VERSION_NUM >= IMB_VERSION(0, 50, 0)
 600         AESNI_GCM_LOG(INFO, "IPSec Multi-buffer library version used: %s\n",
 601                         imb_get_version_str());
 602 #else
 603         AESNI_GCM_LOG(INFO, "IPSec Multi-buffer library version used: 0.49.0\n");
 604 #endif
 605
 606         return 0;
 607
 608 error_exit:
 609         if (mb_mgr)
 610                 free_mb_mgr(mb_mgr);
 611
 612         rte_cryptodev_pmd_destroy(dev);
 613
 614         return -1;
 615 }
 616
 617 static int
 618 aesni_gcm_probe(struct rte_vdev_device *vdev)
 619 {
 620         struct rte_cryptodev_pmd_init_params init_params = {
 621                 "",
 622                 sizeof(struct aesni_gcm_private),
 623                 rte_socket_id(),
 624                 RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS
 625         };
 626         const char *name;
 627         const char *input_args;
 628
 629         name = rte_vdev_device_name(vdev);
 630         if (name == NULL)
 631                 return -EINVAL;
 632         input_args = rte_vdev_device_args(vdev);
 633         rte_cryptodev_pmd_parse_input_args(&init_params, input_args);
 634
 635         return aesni_gcm_create(name, vdev, &init_params);
 636 }
 637
 638 static int
 639 aesni_gcm_remove(struct rte_vdev_device *vdev)
 640 {
 641         struct rte_cryptodev *cryptodev;
 642         struct aesni_gcm_private *internals;
 643         const char *name;
 644
 645         name = rte_vdev_device_name(vdev);
 646         if (name == NULL)
 647                 return -EINVAL;
 648
 649         cryptodev = rte_cryptodev_pmd_get_named_dev(name);
 650         if (cryptodev == NULL)
 651                 return -ENODEV;
 652
 653         internals = cryptodev->data->dev_private;
 654
 655         free_mb_mgr(internals->mb_mgr);
 656
 657         return rte_cryptodev_pmd_destroy(cryptodev);
 658 }
 659
 660 static struct rte_vdev_driver aesni_gcm_pmd_drv = {
 661         .probe = aesni_gcm_probe,
 662         .remove = aesni_gcm_remove
 663 };
 664
 665 static struct cryptodev_driver aesni_gcm_crypto_drv;
 666
 667 RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_AESNI_GCM_PMD, aesni_gcm_pmd_drv);
 668 RTE_PMD_REGISTER_ALIAS(CRYPTODEV_NAME_AESNI_GCM_PMD, cryptodev_aesni_gcm_pmd);
 669 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_AESNI_GCM_PMD,
 670         "max_nb_queue_pairs=<int> "
 671         "socket_id=<int>");
 672 RTE_PMD_REGISTER_CRYPTO_DRIVER(aesni_gcm_crypto_drv, aesni_gcm_pmd_drv.driver,
 673                 cryptodev_driver_id);
 674
 675
 676 RTE_INIT(aesni_gcm_init_log)
 677 {
 678         aesni_gcm_logtype_driver = rte_log_register("pmd.crypto.aesni_gcm");
 679 }