drivers/crypto/octeontx/otx_cryptodev_ops.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2018 Cavium, Inc
   3  */
   4
   5 #include <rte_alarm.h>
   6 #include <rte_bus_pci.h>
   7 #include <rte_cryptodev.h>
   8 #include <rte_cryptodev_pmd.h>
   9 #include <rte_errno.h>
  10 #include <rte_malloc.h>
  11 #include <rte_mempool.h>
  12
  13 #include "otx_cryptodev.h"
  14 #include "otx_cryptodev_capabilities.h"
  15 #include "otx_cryptodev_hw_access.h"
  16 #include "otx_cryptodev_mbox.h"
  17 #include "otx_cryptodev_ops.h"
  18
  19 #include "cpt_pmd_logs.h"
  20 #include "cpt_pmd_ops_helper.h"
  21 #include "cpt_ucode.h"
  22 #include "cpt_ucode_asym.h"
  23
  24 static uint64_t otx_fpm_iova[CPT_EC_ID_PMAX];
  25
  26 /* Forward declarations */
  27
  28 static int
  29 otx_cpt_que_pair_release(struct rte_cryptodev *dev, uint16_t que_pair_id);
  30
  31 /* Alarm routines */
  32
  33 static void
  34 otx_cpt_alarm_cb(void *arg)
  35 {
  36         struct cpt_vf *cptvf = arg;
  37         otx_cpt_poll_misc(cptvf);
  38         rte_eal_alarm_set(CPT_INTR_POLL_INTERVAL_MS * 1000,
  39                           otx_cpt_alarm_cb, cptvf);
  40 }
  41
  42 static int
  43 otx_cpt_periodic_alarm_start(void *arg)
  44 {
  45         return rte_eal_alarm_set(CPT_INTR_POLL_INTERVAL_MS * 1000,
  46                                  otx_cpt_alarm_cb, arg);
  47 }
  48
  49 static int
  50 otx_cpt_periodic_alarm_stop(void *arg)
  51 {
  52         return rte_eal_alarm_cancel(otx_cpt_alarm_cb, arg);
  53 }
  54
  55 /* PMD ops */
  56
  57 static int
  58 otx_cpt_dev_config(struct rte_cryptodev *dev,
  59                    struct rte_cryptodev_config *config __rte_unused)
  60 {
  61         int ret = 0;
  62
  63         CPT_PMD_INIT_FUNC_TRACE();
  64
  65         if (dev->feature_flags & RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO)
  66                 /* Initialize shared FPM table */
  67                 ret = cpt_fpm_init(otx_fpm_iova);
  68
  69         return ret;
  70 }
  71
  72 static int
  73 otx_cpt_dev_start(struct rte_cryptodev *c_dev)
  74 {
  75         void *cptvf = c_dev->data->dev_private;
  76
  77         CPT_PMD_INIT_FUNC_TRACE();
  78
  79         return otx_cpt_start_device(cptvf);
  80 }
  81
  82 static void
  83 otx_cpt_dev_stop(struct rte_cryptodev *c_dev)
  84 {
  85         void *cptvf = c_dev->data->dev_private;
  86
  87         CPT_PMD_INIT_FUNC_TRACE();
  88
  89         if (c_dev->feature_flags & RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO)
  90                 cpt_fpm_clear();
  91
  92         otx_cpt_stop_device(cptvf);
  93 }
  94
  95 static int
  96 otx_cpt_dev_close(struct rte_cryptodev *c_dev)
  97 {
  98         void *cptvf = c_dev->data->dev_private;
  99         int i, ret;
 100
 101         CPT_PMD_INIT_FUNC_TRACE();
 102
 103         for (i = 0; i < c_dev->data->nb_queue_pairs; i++) {
 104                 ret = otx_cpt_que_pair_release(c_dev, i);
 105                 if (ret)
 106                         return ret;
 107         }
 108
 109         otx_cpt_periodic_alarm_stop(cptvf);
 110         otx_cpt_deinit_device(cptvf);
 111
 112         return 0;
 113 }
 114
 115 static void
 116 otx_cpt_dev_info_get(struct rte_cryptodev *dev, struct rte_cryptodev_info *info)
 117 {
 118         CPT_PMD_INIT_FUNC_TRACE();
 119         if (info != NULL) {
 120                 info->max_nb_queue_pairs = CPT_NUM_QS_PER_VF;
 121                 info->feature_flags = dev->feature_flags;
 122                 info->capabilities = otx_get_capabilities(info->feature_flags);
 123                 info->sym.max_nb_sessions = 0;
 124                 info->driver_id = otx_cryptodev_driver_id;
 125                 info->min_mbuf_headroom_req = OTX_CPT_MIN_HEADROOM_REQ;
 126                 info->min_mbuf_tailroom_req = OTX_CPT_MIN_TAILROOM_REQ;
 127         }
 128 }
 129
 130 static int
 131 otx_cpt_que_pair_setup(struct rte_cryptodev *dev,
 132                        uint16_t que_pair_id,
 133                        const struct rte_cryptodev_qp_conf *qp_conf,
 134                        int socket_id __rte_unused)
 135 {
 136         struct cpt_instance *instance = NULL;
 137         struct rte_pci_device *pci_dev;
 138         int ret = -1;
 139
 140         CPT_PMD_INIT_FUNC_TRACE();
 141
 142         if (dev->data->queue_pairs[que_pair_id] != NULL) {
 143                 ret = otx_cpt_que_pair_release(dev, que_pair_id);
 144                 if (ret)
 145                         return ret;
 146         }
 147
 148         if (qp_conf->nb_descriptors > DEFAULT_CMD_QLEN) {
 149                 CPT_LOG_INFO("Number of descriptors too big %d, using default "
 150                              "queue length of %d", qp_conf->nb_descriptors,
 151                              DEFAULT_CMD_QLEN);
 152         }
 153
 154         pci_dev = RTE_DEV_TO_PCI(dev->device);
 155
 156         if (pci_dev->mem_resource[0].addr == NULL) {
 157                 CPT_LOG_ERR("PCI mem address null");
 158                 return -EIO;
 159         }
 160
 161         ret = otx_cpt_get_resource(dev, 0, &instance, que_pair_id);
 162         if (ret != 0 || instance == NULL) {
 163                 CPT_LOG_ERR("Error getting instance handle from device %s : "
 164                             "ret = %d", dev->data->name, ret);
 165                 return ret;
 166         }
 167
 168         instance->queue_id = que_pair_id;
 169         instance->sess_mp = qp_conf->mp_session;
 170         instance->sess_mp_priv = qp_conf->mp_session_private;
 171         dev->data->queue_pairs[que_pair_id] = instance;
 172
 173         return 0;
 174 }
 175
 176 static int
 177 otx_cpt_que_pair_release(struct rte_cryptodev *dev, uint16_t que_pair_id)
 178 {
 179         struct cpt_instance *instance = dev->data->queue_pairs[que_pair_id];
 180         int ret;
 181
 182         CPT_PMD_INIT_FUNC_TRACE();
 183
 184         ret = otx_cpt_put_resource(instance);
 185         if (ret != 0) {
 186                 CPT_LOG_ERR("Error putting instance handle of device %s : "
 187                             "ret = %d", dev->data->name, ret);
 188                 return ret;
 189         }
 190
 191         dev->data->queue_pairs[que_pair_id] = NULL;
 192
 193         return 0;
 194 }
 195
 196 static unsigned int
 197 otx_cpt_get_session_size(struct rte_cryptodev *dev __rte_unused)
 198 {
 199         return cpt_get_session_size();
 200 }
 201
 202 static int
 203 sym_xform_verify(struct rte_crypto_sym_xform *xform)
 204 {
 205         if (xform->next) {
 206                 if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH &&
 207                     xform->next->type == RTE_CRYPTO_SYM_XFORM_CIPHER &&
 208                     xform->next->cipher.op == RTE_CRYPTO_CIPHER_OP_ENCRYPT)
 209                         return -ENOTSUP;
 210
 211                 if (xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER &&
 212                     xform->cipher.op == RTE_CRYPTO_CIPHER_OP_DECRYPT &&
 213                     xform->next->type == RTE_CRYPTO_SYM_XFORM_AUTH)
 214                         return -ENOTSUP;
 215
 216                 if (xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER &&
 217                     xform->cipher.algo == RTE_CRYPTO_CIPHER_3DES_CBC &&
 218                     xform->next->type == RTE_CRYPTO_SYM_XFORM_AUTH &&
 219                     xform->next->auth.algo == RTE_CRYPTO_AUTH_SHA1)
 220                         return -ENOTSUP;
 221
 222                 if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH &&
 223                     xform->auth.algo == RTE_CRYPTO_AUTH_SHA1 &&
 224                     xform->next->type == RTE_CRYPTO_SYM_XFORM_CIPHER &&
 225                     xform->next->cipher.algo == RTE_CRYPTO_CIPHER_3DES_CBC)
 226                         return -ENOTSUP;
 227
 228         } else {
 229                 if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH &&
 230                     xform->auth.algo == RTE_CRYPTO_AUTH_NULL &&
 231                     xform->auth.op == RTE_CRYPTO_AUTH_OP_VERIFY)
 232                         return -ENOTSUP;
 233         }
 234         return 0;
 235 }
 236
 237 static int
 238 sym_session_configure(int driver_id, struct rte_crypto_sym_xform *xform,
 239                       struct rte_cryptodev_sym_session *sess,
 240                       struct rte_mempool *pool)
 241 {
 242         struct rte_crypto_sym_xform *temp_xform = xform;
 243         struct cpt_sess_misc *misc;
 244         void *priv;
 245         int ret;
 246
 247         ret = sym_xform_verify(xform);
 248         if (unlikely(ret))
 249                 return ret;
 250
 251         if (unlikely(rte_mempool_get(pool, &priv))) {
 252                 CPT_LOG_ERR("Could not allocate session private data");
 253                 return -ENOMEM;
 254         }
 255
 256         memset(priv, 0, sizeof(struct cpt_sess_misc) +
 257                         offsetof(struct cpt_ctx, fctx));
 258
 259         misc = priv;
 260
 261         for ( ; xform != NULL; xform = xform->next) {
 262                 switch (xform->type) {
 263                 case RTE_CRYPTO_SYM_XFORM_AEAD:
 264                         ret = fill_sess_aead(xform, misc);
 265                         break;
 266                 case RTE_CRYPTO_SYM_XFORM_CIPHER:
 267                         ret = fill_sess_cipher(xform, misc);
 268                         break;
 269                 case RTE_CRYPTO_SYM_XFORM_AUTH:
 270                         if (xform->auth.algo == RTE_CRYPTO_AUTH_AES_GMAC)
 271                                 ret = fill_sess_gmac(xform, misc);
 272                         else
 273                                 ret = fill_sess_auth(xform, misc);
 274                         break;
 275                 default:
 276                         ret = -1;
 277                 }
 278
 279                 if (ret)
 280                         goto priv_put;
 281         }
 282
 283         if ((GET_SESS_FC_TYPE(misc) == HASH_HMAC) &&
 284                         cpt_mac_len_verify(&temp_xform->auth)) {
 285                 CPT_LOG_ERR("MAC length is not supported");
 286                 ret = -ENOTSUP;
 287                 goto priv_put;
 288         }
 289
 290         set_sym_session_private_data(sess, driver_id, priv);
 291
 292         misc->ctx_dma_addr = rte_mempool_virt2iova(misc) +
 293                              sizeof(struct cpt_sess_misc);
 294
 295         return 0;
 296
 297 priv_put:
 298         if (priv)
 299                 rte_mempool_put(pool, priv);
 300         return -ENOTSUP;
 301 }
 302
 303 static void
 304 sym_session_clear(int driver_id, struct rte_cryptodev_sym_session *sess)
 305 {
 306         void *priv = get_sym_session_private_data(sess, driver_id);
 307         struct rte_mempool *pool;
 308
 309         if (priv == NULL)
 310                 return;
 311
 312         memset(priv, 0, cpt_get_session_size());
 313
 314         pool = rte_mempool_from_obj(priv);
 315
 316         set_sym_session_private_data(sess, driver_id, NULL);
 317
 318         rte_mempool_put(pool, priv);
 319 }
 320
 321 static int
 322 otx_cpt_session_cfg(struct rte_cryptodev *dev,
 323                     struct rte_crypto_sym_xform *xform,
 324                     struct rte_cryptodev_sym_session *sess,
 325                     struct rte_mempool *pool)
 326 {
 327         CPT_PMD_INIT_FUNC_TRACE();
 328
 329         return sym_session_configure(dev->driver_id, xform, sess, pool);
 330 }
 331
 332
 333 static void
 334 otx_cpt_session_clear(struct rte_cryptodev *dev,
 335                   struct rte_cryptodev_sym_session *sess)
 336 {
 337         CPT_PMD_INIT_FUNC_TRACE();
 338
 339         return sym_session_clear(dev->driver_id, sess);
 340 }
 341
 342 static unsigned int
 343 otx_cpt_asym_session_size_get(struct rte_cryptodev *dev __rte_unused)
 344 {
 345         return sizeof(struct cpt_asym_sess_misc);
 346 }
 347
 348 static int
 349 otx_cpt_asym_session_cfg(struct rte_cryptodev *dev,
 350                          struct rte_crypto_asym_xform *xform __rte_unused,
 351                          struct rte_cryptodev_asym_session *sess,
 352                          struct rte_mempool *pool)
 353 {
 354         struct cpt_asym_sess_misc *priv;
 355         int ret;
 356
 357         CPT_PMD_INIT_FUNC_TRACE();
 358
 359         if (rte_mempool_get(pool, (void **)&priv)) {
 360                 CPT_LOG_ERR("Could not allocate session private data");
 361                 return -ENOMEM;
 362         }
 363
 364         memset(priv, 0, sizeof(struct cpt_asym_sess_misc));
 365
 366         ret = cpt_fill_asym_session_parameters(priv, xform);
 367         if (ret) {
 368                 CPT_LOG_ERR("Could not configure session parameters");
 369
 370                 /* Return session to mempool */
 371                 rte_mempool_put(pool, priv);
 372                 return ret;
 373         }
 374
 375         set_asym_session_private_data(sess, dev->driver_id, priv);
 376         return 0;
 377 }
 378
 379 static void
 380 otx_cpt_asym_session_clear(struct rte_cryptodev *dev,
 381                            struct rte_cryptodev_asym_session *sess)
 382 {
 383         struct cpt_asym_sess_misc *priv;
 384         struct rte_mempool *sess_mp;
 385
 386         CPT_PMD_INIT_FUNC_TRACE();
 387
 388         priv = get_asym_session_private_data(sess, dev->driver_id);
 389
 390         if (priv == NULL)
 391                 return;
 392
 393         /* Free resources allocated during session configure */
 394         cpt_free_asym_session_parameters(priv);
 395         memset(priv, 0, otx_cpt_asym_session_size_get(dev));
 396         sess_mp = rte_mempool_from_obj(priv);
 397         set_asym_session_private_data(sess, dev->driver_id, NULL);
 398         rte_mempool_put(sess_mp, priv);
 399 }
 400
 401 static __rte_always_inline int32_t __rte_hot
 402 otx_cpt_request_enqueue(struct cpt_instance *instance,
 403                         struct pending_queue *pqueue,
 404                         void *req)
 405 {
 406         struct cpt_request_info *user_req = (struct cpt_request_info *)req;
 407
 408         if (unlikely(pqueue->pending_count >= DEFAULT_CMD_QLEN))
 409                 return -EAGAIN;
 410
 411         fill_cpt_inst(instance, req);
 412
 413         CPT_LOG_DP_DEBUG("req: %p op: %p ", req, user_req->op);
 414
 415         /* Fill time_out cycles */
 416         user_req->time_out = rte_get_timer_cycles() +
 417                         DEFAULT_COMMAND_TIMEOUT * rte_get_timer_hz();
 418         user_req->extra_time = 0;
 419
 420         /* Default mode of software queue */
 421         mark_cpt_inst(instance);
 422
 423         pqueue->rid_queue[pqueue->enq_tail].rid = (uintptr_t)user_req;
 424
 425         /* We will use soft queue length here to limit requests */
 426         MOD_INC(pqueue->enq_tail, DEFAULT_CMD_QLEN);
 427         pqueue->pending_count += 1;
 428
 429         CPT_LOG_DP_DEBUG("Submitted NB cmd with request: %p "
 430                          "op: %p", user_req, user_req->op);
 431         return 0;
 432 }
 433
 434 static __rte_always_inline int __rte_hot
 435 otx_cpt_enq_single_asym(struct cpt_instance *instance,
 436                         struct rte_crypto_op *op,
 437                         struct pending_queue *pqueue)
 438 {
 439         struct cpt_qp_meta_info *minfo = &instance->meta_info;
 440         struct rte_crypto_asym_op *asym_op = op->asym;
 441         struct asym_op_params params = {0};
 442         struct cpt_asym_sess_misc *sess;
 443         uintptr_t *cop;
 444         void *mdata;
 445         int ret;
 446
 447         if (unlikely(rte_mempool_get(minfo->pool, &mdata) < 0)) {
 448                 CPT_LOG_DP_ERR("Could not allocate meta buffer for request");
 449                 return -ENOMEM;
 450         }
 451
 452         sess = get_asym_session_private_data(asym_op->session,
 453                                              otx_cryptodev_driver_id);
 454
 455         /* Store phys_addr of the mdata to meta_buf */
 456         params.meta_buf = rte_mempool_virt2iova(mdata);
 457
 458         cop = mdata;
 459         cop[0] = (uintptr_t)mdata;
 460         cop[1] = (uintptr_t)op;
 461         cop[2] = cop[3] = 0ULL;
 462
 463         params.req = RTE_PTR_ADD(cop, 4 * sizeof(uintptr_t));
 464         params.req->op = cop;
 465
 466         /* Adjust meta_buf by crypto_op data  and request_info struct */
 467         params.meta_buf += (4 * sizeof(uintptr_t)) +
 468                            sizeof(struct cpt_request_info);
 469
 470         switch (sess->xfrm_type) {
 471         case RTE_CRYPTO_ASYM_XFORM_MODEX:
 472                 ret = cpt_modex_prep(&params, &sess->mod_ctx);
 473                 if (unlikely(ret))
 474                         goto req_fail;
 475                 break;
 476         case RTE_CRYPTO_ASYM_XFORM_RSA:
 477                 ret = cpt_enqueue_rsa_op(op, &params, sess);
 478                 if (unlikely(ret))
 479                         goto req_fail;
 480                 break;
 481         case RTE_CRYPTO_ASYM_XFORM_ECDSA:
 482                 ret = cpt_enqueue_ecdsa_op(op, &params, sess, otx_fpm_iova);
 483                 if (unlikely(ret))
 484                         goto req_fail;
 485                 break;
 486         case RTE_CRYPTO_ASYM_XFORM_ECPM:
 487                 ret = cpt_ecpm_prep(&asym_op->ecpm, &params,
 488                                     sess->ec_ctx.curveid);
 489                 if (unlikely(ret))
 490                         goto req_fail;
 491                 break;
 492
 493         default:
 494                 op->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 495                 ret = -EINVAL;
 496                 goto req_fail;
 497         }
 498
 499         ret = otx_cpt_request_enqueue(instance, pqueue, params.req);
 500
 501         if (unlikely(ret)) {
 502                 CPT_LOG_DP_ERR("Could not enqueue crypto req");
 503                 goto req_fail;
 504         }
 505
 506         return 0;
 507
 508 req_fail:
 509         free_op_meta(mdata, minfo->pool);
 510
 511         return ret;
 512 }
 513
 514 static __rte_always_inline int __rte_hot
 515 otx_cpt_enq_single_sym(struct cpt_instance *instance,
 516                        struct rte_crypto_op *op,
 517                        struct pending_queue *pqueue)
 518 {
 519         struct cpt_sess_misc *sess;
 520         struct rte_crypto_sym_op *sym_op = op->sym;
 521         void *prep_req, *mdata = NULL;
 522         int ret = 0;
 523         uint64_t cpt_op;
 524
 525         sess = (struct cpt_sess_misc *)
 526                         get_sym_session_private_data(sym_op->session,
 527                                                      otx_cryptodev_driver_id);
 528
 529         cpt_op = sess->cpt_op;
 530
 531         if (likely(cpt_op & CPT_OP_CIPHER_MASK))
 532                 ret = fill_fc_params(op, sess, &instance->meta_info, &mdata,
 533                                      &prep_req);
 534         else
 535                 ret = fill_digest_params(op, sess, &instance->meta_info,
 536                                          &mdata, &prep_req);
 537
 538         if (unlikely(ret)) {
 539                 CPT_LOG_DP_ERR("prep cryto req : op %p, cpt_op 0x%x "
 540                                "ret 0x%x", op, (unsigned int)cpt_op, ret);
 541                 return ret;
 542         }
 543
 544         /* Enqueue prepared instruction to h/w */
 545         ret = otx_cpt_request_enqueue(instance, pqueue, prep_req);
 546
 547         if (unlikely(ret)) {
 548                 /* Buffer allocated for request preparation need to be freed */
 549                 free_op_meta(mdata, instance->meta_info.pool);
 550                 return ret;
 551         }
 552
 553         return 0;
 554 }
 555
 556 static __rte_always_inline int __rte_hot
 557 otx_cpt_enq_single_sym_sessless(struct cpt_instance *instance,
 558                                 struct rte_crypto_op *op,
 559                                 struct pending_queue *pend_q)
 560 {
 561         const int driver_id = otx_cryptodev_driver_id;
 562         struct rte_crypto_sym_op *sym_op = op->sym;
 563         struct rte_cryptodev_sym_session *sess;
 564         int ret;
 565
 566         /* Create temporary session */
 567
 568         if (rte_mempool_get(instance->sess_mp, (void **)&sess))
 569                 return -ENOMEM;
 570
 571         ret = sym_session_configure(driver_id, sym_op->xform, sess,
 572                                     instance->sess_mp_priv);
 573         if (ret)
 574                 goto sess_put;
 575
 576         sym_op->session = sess;
 577
 578         ret = otx_cpt_enq_single_sym(instance, op, pend_q);
 579
 580         if (unlikely(ret))
 581                 goto priv_put;
 582
 583         return 0;
 584
 585 priv_put:
 586         sym_session_clear(driver_id, sess);
 587 sess_put:
 588         rte_mempool_put(instance->sess_mp, sess);
 589         return ret;
 590 }
 591
 592 #define OP_TYPE_SYM             0
 593 #define OP_TYPE_ASYM            1
 594
 595 static __rte_always_inline int __rte_hot
 596 otx_cpt_enq_single(struct cpt_instance *inst,
 597                    struct rte_crypto_op *op,
 598                    struct pending_queue *pqueue,
 599                    const uint8_t op_type)
 600 {
 601         /* Check for the type */
 602
 603         if (op_type == OP_TYPE_SYM) {
 604                 if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION)
 605                         return otx_cpt_enq_single_sym(inst, op, pqueue);
 606                 else
 607                         return otx_cpt_enq_single_sym_sessless(inst, op,
 608                                                                pqueue);
 609         }
 610
 611         if (op_type == OP_TYPE_ASYM) {
 612                 if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION)
 613                         return otx_cpt_enq_single_asym(inst, op, pqueue);
 614         }
 615
 616         /* Should not reach here */
 617         return -ENOTSUP;
 618 }
 619
 620 static  __rte_always_inline uint16_t __rte_hot
 621 otx_cpt_pkt_enqueue(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops,
 622                     const uint8_t op_type)
 623 {
 624         struct cpt_instance *instance = (struct cpt_instance *)qptr;
 625         uint16_t count;
 626         int ret;
 627         struct cpt_vf *cptvf = (struct cpt_vf *)instance;
 628         struct pending_queue *pqueue = &cptvf->pqueue;
 629
 630         count = DEFAULT_CMD_QLEN - pqueue->pending_count;
 631         if (nb_ops > count)
 632                 nb_ops = count;
 633
 634         count = 0;
 635         while (likely(count < nb_ops)) {
 636
 637                 /* Enqueue single op */
 638                 ret = otx_cpt_enq_single(instance, ops[count], pqueue, op_type);
 639
 640                 if (unlikely(ret))
 641                         break;
 642                 count++;
 643         }
 644         otx_cpt_ring_dbell(instance, count);
 645         return count;
 646 }
 647
 648 static uint16_t
 649 otx_cpt_enqueue_asym(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops)
 650 {
 651         return otx_cpt_pkt_enqueue(qptr, ops, nb_ops, OP_TYPE_ASYM);
 652 }
 653
 654 static uint16_t
 655 otx_cpt_enqueue_sym(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops)
 656 {
 657         return otx_cpt_pkt_enqueue(qptr, ops, nb_ops, OP_TYPE_SYM);
 658 }
 659
 660 static inline void
 661 otx_cpt_asym_rsa_op(struct rte_crypto_op *cop, struct cpt_request_info *req,
 662                     struct rte_crypto_rsa_xform *rsa_ctx)
 663
 664 {
 665         struct rte_crypto_rsa_op_param *rsa = &cop->asym->rsa;
 666
 667         switch (rsa->op_type) {
 668         case RTE_CRYPTO_ASYM_OP_ENCRYPT:
 669                 rsa->cipher.length = rsa_ctx->n.length;
 670                 memcpy(rsa->cipher.data, req->rptr, rsa->cipher.length);
 671                 break;
 672         case RTE_CRYPTO_ASYM_OP_DECRYPT:
 673                 if (rsa->pad == RTE_CRYPTO_RSA_PADDING_NONE)
 674                         rsa->message.length = rsa_ctx->n.length;
 675                 else {
 676                         /* Get length of decrypted output */
 677                         rsa->message.length = rte_cpu_to_be_16
 678                                         (*((uint16_t *)req->rptr));
 679
 680                         /* Offset data pointer by length fields */
 681                         req->rptr += 2;
 682                 }
 683                 memcpy(rsa->message.data, req->rptr, rsa->message.length);
 684                 break;
 685         case RTE_CRYPTO_ASYM_OP_SIGN:
 686                 rsa->sign.length = rsa_ctx->n.length;
 687                 memcpy(rsa->sign.data, req->rptr, rsa->sign.length);
 688                 break;
 689         case RTE_CRYPTO_ASYM_OP_VERIFY:
 690                 if (rsa->pad == RTE_CRYPTO_RSA_PADDING_NONE)
 691                         rsa->sign.length = rsa_ctx->n.length;
 692                 else {
 693                         /* Get length of decrypted output */
 694                         rsa->sign.length = rte_cpu_to_be_16
 695                                         (*((uint16_t *)req->rptr));
 696
 697                         /* Offset data pointer by length fields */
 698                         req->rptr += 2;
 699                 }
 700                 memcpy(rsa->sign.data, req->rptr, rsa->sign.length);
 701
 702                 if (memcmp(rsa->sign.data, rsa->message.data,
 703                            rsa->message.length)) {
 704                         CPT_LOG_DP_ERR("RSA verification failed");
 705                         cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
 706                 }
 707                 break;
 708         default:
 709                 CPT_LOG_DP_DEBUG("Invalid RSA operation type");
 710                 cop->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 711                 break;
 712         }
 713 }
 714
 715 static __rte_always_inline void
 716 otx_cpt_asym_dequeue_ecdsa_op(struct rte_crypto_ecdsa_op_param *ecdsa,
 717                             struct cpt_request_info *req,
 718                             struct cpt_asym_ec_ctx *ec)
 719
 720 {
 721         int prime_len = ec_grp[ec->curveid].prime.length;
 722
 723         if (ecdsa->op_type == RTE_CRYPTO_ASYM_OP_VERIFY)
 724                 return;
 725
 726         /* Separate out sign r and s components */
 727         memcpy(ecdsa->r.data, req->rptr, prime_len);
 728         memcpy(ecdsa->s.data, req->rptr + ROUNDUP8(prime_len), prime_len);
 729         ecdsa->r.length = prime_len;
 730         ecdsa->s.length = prime_len;
 731 }
 732
 733 static __rte_always_inline void
 734 otx_cpt_asym_dequeue_ecpm_op(struct rte_crypto_ecpm_op_param *ecpm,
 735                              struct cpt_request_info *req,
 736                              struct cpt_asym_ec_ctx *ec)
 737 {
 738         int prime_len = ec_grp[ec->curveid].prime.length;
 739
 740         memcpy(ecpm->r.x.data, req->rptr, prime_len);
 741         memcpy(ecpm->r.y.data, req->rptr + ROUNDUP8(prime_len), prime_len);
 742         ecpm->r.x.length = prime_len;
 743         ecpm->r.y.length = prime_len;
 744 }
 745
 746 static __rte_always_inline void __rte_hot
 747 otx_cpt_asym_post_process(struct rte_crypto_op *cop,
 748                           struct cpt_request_info *req)
 749 {
 750         struct rte_crypto_asym_op *op = cop->asym;
 751         struct cpt_asym_sess_misc *sess;
 752
 753         sess = get_asym_session_private_data(op->session,
 754                                              otx_cryptodev_driver_id);
 755
 756         switch (sess->xfrm_type) {
 757         case RTE_CRYPTO_ASYM_XFORM_RSA:
 758                 otx_cpt_asym_rsa_op(cop, req, &sess->rsa_ctx);
 759                 break;
 760         case RTE_CRYPTO_ASYM_XFORM_MODEX:
 761                 op->modex.result.length = sess->mod_ctx.modulus.length;
 762                 memcpy(op->modex.result.data, req->rptr,
 763                        op->modex.result.length);
 764                 break;
 765         case RTE_CRYPTO_ASYM_XFORM_ECDSA:
 766                 otx_cpt_asym_dequeue_ecdsa_op(&op->ecdsa, req, &sess->ec_ctx);
 767                 break;
 768         case RTE_CRYPTO_ASYM_XFORM_ECPM:
 769                 otx_cpt_asym_dequeue_ecpm_op(&op->ecpm, req, &sess->ec_ctx);
 770                 break;
 771         default:
 772                 CPT_LOG_DP_DEBUG("Invalid crypto xform type");
 773                 cop->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 774                 break;
 775         }
 776 }
 777
 778 static __rte_always_inline void __rte_hot
 779 otx_cpt_dequeue_post_process(struct rte_crypto_op *cop, uintptr_t *rsp,
 780                              const uint8_t op_type)
 781 {
 782         /* H/w has returned success */
 783         cop->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
 784
 785         /* Perform further post processing */
 786
 787         if ((op_type == OP_TYPE_SYM) &&
 788             (cop->type == RTE_CRYPTO_OP_TYPE_SYMMETRIC)) {
 789                 /* Check if auth verify need to be completed */
 790                 if (unlikely(rsp[2]))
 791                         compl_auth_verify(cop, (uint8_t *)rsp[2], rsp[3]);
 792                 return;
 793         }
 794
 795         if ((op_type == OP_TYPE_ASYM) &&
 796             (cop->type == RTE_CRYPTO_OP_TYPE_ASYMMETRIC)) {
 797                 rsp = RTE_PTR_ADD(rsp, 4 * sizeof(uintptr_t));
 798                 otx_cpt_asym_post_process(cop, (struct cpt_request_info *)rsp);
 799         }
 800
 801         return;
 802 }
 803
 804 static __rte_always_inline uint16_t __rte_hot
 805 otx_cpt_pkt_dequeue(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops,
 806                     const uint8_t op_type)
 807 {
 808         struct cpt_instance *instance = (struct cpt_instance *)qptr;
 809         struct cpt_request_info *user_req;
 810         struct cpt_vf *cptvf = (struct cpt_vf *)instance;
 811         struct rid *rid_e;
 812         uint8_t cc[nb_ops];
 813         int i, count, pcount;
 814         uint8_t ret;
 815         int nb_completed;
 816         struct pending_queue *pqueue = &cptvf->pqueue;
 817         struct rte_crypto_op *cop;
 818         void *metabuf;
 819         uintptr_t *rsp;
 820
 821         pcount = pqueue->pending_count;
 822         count = (nb_ops > pcount) ? pcount : nb_ops;
 823
 824         for (i = 0; i < count; i++) {
 825                 rid_e = &pqueue->rid_queue[pqueue->deq_head];
 826                 user_req = (struct cpt_request_info *)(rid_e->rid);
 827
 828                 if (likely((i+1) < count))
 829                         rte_prefetch_non_temporal((void *)rid_e[1].rid);
 830
 831                 ret = check_nb_command_id(user_req, instance);
 832
 833                 if (unlikely(ret == ERR_REQ_PENDING)) {
 834                         /* Stop checking for completions */
 835                         break;
 836                 }
 837
 838                 /* Return completion code and op handle */
 839                 cc[i] = ret;
 840                 ops[i] = user_req->op;
 841
 842                 CPT_LOG_DP_DEBUG("Request %p Op %p completed with code %d",
 843                                  user_req, user_req->op, ret);
 844
 845                 MOD_INC(pqueue->deq_head, DEFAULT_CMD_QLEN);
 846                 pqueue->pending_count -= 1;
 847         }
 848
 849         nb_completed = i;
 850
 851         for (i = 0; i < nb_completed; i++) {
 852
 853                 rsp = (void *)ops[i];
 854
 855                 if (likely((i + 1) < nb_completed))
 856                         rte_prefetch0(ops[i+1]);
 857
 858                 metabuf = (void *)rsp[0];
 859                 cop = (void *)rsp[1];
 860
 861                 ops[i] = cop;
 862
 863                 /* Check completion code */
 864
 865                 if (likely(cc[i] == 0)) {
 866                         /* H/w success pkt. Post process */
 867                         otx_cpt_dequeue_post_process(cop, rsp, op_type);
 868                 } else if (cc[i] == ERR_GC_ICV_MISCOMPARE) {
 869                         /* auth data mismatch */
 870                         cop->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
 871                 } else {
 872                         /* Error */
 873                         cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
 874                 }
 875
 876                 if (unlikely(cop->sess_type == RTE_CRYPTO_OP_SESSIONLESS)) {
 877                         void *sess_private_data_t =
 878                                 get_sym_session_private_data(cop->sym->session,
 879                                                 otx_cryptodev_driver_id);
 880                         memset(sess_private_data_t, 0,
 881                                         cpt_get_session_size());
 882                         memset(cop->sym->session, 0,
 883                         rte_cryptodev_sym_get_existing_header_session_size(
 884                                         cop->sym->session));
 885                         rte_mempool_put(instance->sess_mp_priv,
 886                                         sess_private_data_t);
 887                         rte_mempool_put(instance->sess_mp, cop->sym->session);
 888                         cop->sym->session = NULL;
 889                 }
 890                 free_op_meta(metabuf, instance->meta_info.pool);
 891         }
 892
 893         return nb_completed;
 894 }
 895
 896 static uint16_t
 897 otx_cpt_dequeue_asym(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops)
 898 {
 899         return otx_cpt_pkt_dequeue(qptr, ops, nb_ops, OP_TYPE_ASYM);
 900 }
 901
 902 static uint16_t
 903 otx_cpt_dequeue_sym(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops)
 904 {
 905         return otx_cpt_pkt_dequeue(qptr, ops, nb_ops, OP_TYPE_SYM);
 906 }
 907
 908 static struct rte_cryptodev_ops cptvf_ops = {
 909         /* Device related operations */
 910         .dev_configure = otx_cpt_dev_config,
 911         .dev_start = otx_cpt_dev_start,
 912         .dev_stop = otx_cpt_dev_stop,
 913         .dev_close = otx_cpt_dev_close,
 914         .dev_infos_get = otx_cpt_dev_info_get,
 915
 916         .stats_get = NULL,
 917         .stats_reset = NULL,
 918         .queue_pair_setup = otx_cpt_que_pair_setup,
 919         .queue_pair_release = otx_cpt_que_pair_release,
 920
 921         /* Crypto related operations */
 922         .sym_session_get_size = otx_cpt_get_session_size,
 923         .sym_session_configure = otx_cpt_session_cfg,
 924         .sym_session_clear = otx_cpt_session_clear,
 925
 926         .asym_session_get_size = otx_cpt_asym_session_size_get,
 927         .asym_session_configure = otx_cpt_asym_session_cfg,
 928         .asym_session_clear = otx_cpt_asym_session_clear,
 929 };
 930
 931 int
 932 otx_cpt_dev_create(struct rte_cryptodev *c_dev)
 933 {
 934         struct rte_pci_device *pdev = RTE_DEV_TO_PCI(c_dev->device);
 935         struct cpt_vf *cptvf = NULL;
 936         void *reg_base;
 937         char dev_name[32];
 938         int ret;
 939
 940         if (pdev->mem_resource[0].phys_addr == 0ULL)
 941                 return -EIO;
 942
 943         /* for secondary processes, we don't initialise any further as primary
 944          * has already done this work.
 945          */
 946         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 947                 return 0;
 948
 949         cptvf = rte_zmalloc_socket("otx_cryptodev_private_mem",
 950                         sizeof(struct cpt_vf), RTE_CACHE_LINE_SIZE,
 951                         rte_socket_id());
 952
 953         if (cptvf == NULL) {
 954                 CPT_LOG_ERR("Cannot allocate memory for device private data");
 955                 return -ENOMEM;
 956         }
 957
 958         snprintf(dev_name, 32, "%02x:%02x.%x",
 959                         pdev->addr.bus, pdev->addr.devid, pdev->addr.function);
 960
 961         reg_base = pdev->mem_resource[0].addr;
 962         if (!reg_base) {
 963                 CPT_LOG_ERR("Failed to map BAR0 of %s", dev_name);
 964                 ret = -ENODEV;
 965                 goto fail;
 966         }
 967
 968         ret = otx_cpt_hw_init(cptvf, pdev, reg_base, dev_name);
 969         if (ret) {
 970                 CPT_LOG_ERR("Failed to init cptvf %s", dev_name);
 971                 ret = -EIO;
 972                 goto fail;
 973         }
 974
 975         switch (cptvf->vftype) {
 976         case OTX_CPT_VF_TYPE_AE:
 977                 /* Set asymmetric cpt feature flags */
 978                 c_dev->feature_flags = RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO |
 979                                 RTE_CRYPTODEV_FF_HW_ACCELERATED |
 980                                 RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_QT;
 981                 break;
 982         case OTX_CPT_VF_TYPE_SE:
 983                 /* Set symmetric cpt feature flags */
 984                 c_dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
 985                                 RTE_CRYPTODEV_FF_HW_ACCELERATED |
 986                                 RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
 987                                 RTE_CRYPTODEV_FF_IN_PLACE_SGL |
 988                                 RTE_CRYPTODEV_FF_OOP_LB_IN_LB_OUT |
 989                                 RTE_CRYPTODEV_FF_OOP_SGL_IN_LB_OUT |
 990                                 RTE_CRYPTODEV_FF_OOP_SGL_IN_SGL_OUT |
 991                                 RTE_CRYPTODEV_FF_SYM_SESSIONLESS;
 992                 break;
 993         default:
 994                 /* Feature not supported. Abort */
 995                 CPT_LOG_ERR("VF type not supported by %s", dev_name);
 996                 ret = -EIO;
 997                 goto deinit_dev;
 998         }
 999
1000         /* Start off timer for mailbox interrupts */
1001         otx_cpt_periodic_alarm_start(cptvf);
1002
1003         c_dev->dev_ops = &cptvf_ops;
1004
1005         if (c_dev->feature_flags & RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO) {
1006                 c_dev->enqueue_burst = otx_cpt_enqueue_sym;
1007                 c_dev->dequeue_burst = otx_cpt_dequeue_sym;
1008         } else {
1009                 c_dev->enqueue_burst = otx_cpt_enqueue_asym;
1010                 c_dev->dequeue_burst = otx_cpt_dequeue_asym;
1011         }
1012
1013         /* Save dev private data */
1014         c_dev->data->dev_private = cptvf;
1015
1016         return 0;
1017
1018 deinit_dev:
1019         otx_cpt_deinit_device(cptvf);
1020
1021 fail:
1022         if (cptvf) {
1023                 /* Free private data allocated */
1024                 rte_free(cptvf);
1025         }
1026
1027         return ret;
1028 }