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 cpt_sess_misc *misc;
 243         void *priv;
 244         int ret;
 245
 246         ret = sym_xform_verify(xform);
 247         if (unlikely(ret))
 248                 return ret;
 249
 250         if (unlikely(rte_mempool_get(pool, &priv))) {
 251                 CPT_LOG_ERR("Could not allocate session private data");
 252                 return -ENOMEM;
 253         }
 254
 255         memset(priv, 0, sizeof(struct cpt_sess_misc) +
 256                         offsetof(struct cpt_ctx, fctx));
 257
 258         misc = priv;
 259
 260         for ( ; xform != NULL; xform = xform->next) {
 261                 switch (xform->type) {
 262                 case RTE_CRYPTO_SYM_XFORM_AEAD:
 263                         ret = fill_sess_aead(xform, misc);
 264                         break;
 265                 case RTE_CRYPTO_SYM_XFORM_CIPHER:
 266                         ret = fill_sess_cipher(xform, misc);
 267                         break;
 268                 case RTE_CRYPTO_SYM_XFORM_AUTH:
 269                         if (xform->auth.algo == RTE_CRYPTO_AUTH_AES_GMAC)
 270                                 ret = fill_sess_gmac(xform, misc);
 271                         else
 272                                 ret = fill_sess_auth(xform, misc);
 273                         break;
 274                 default:
 275                         ret = -1;
 276                 }
 277
 278                 if (ret)
 279                         goto priv_put;
 280         }
 281
 282         set_sym_session_private_data(sess, driver_id, priv);
 283
 284         misc->ctx_dma_addr = rte_mempool_virt2iova(misc) +
 285                              sizeof(struct cpt_sess_misc);
 286
 287         return 0;
 288
 289 priv_put:
 290         if (priv)
 291                 rte_mempool_put(pool, priv);
 292         return -ENOTSUP;
 293 }
 294
 295 static void
 296 sym_session_clear(int driver_id, struct rte_cryptodev_sym_session *sess)
 297 {
 298         void *priv = get_sym_session_private_data(sess, driver_id);
 299         struct rte_mempool *pool;
 300
 301         if (priv == NULL)
 302                 return;
 303
 304         memset(priv, 0, cpt_get_session_size());
 305
 306         pool = rte_mempool_from_obj(priv);
 307
 308         set_sym_session_private_data(sess, driver_id, NULL);
 309
 310         rte_mempool_put(pool, priv);
 311 }
 312
 313 static int
 314 otx_cpt_session_cfg(struct rte_cryptodev *dev,
 315                     struct rte_crypto_sym_xform *xform,
 316                     struct rte_cryptodev_sym_session *sess,
 317                     struct rte_mempool *pool)
 318 {
 319         CPT_PMD_INIT_FUNC_TRACE();
 320
 321         return sym_session_configure(dev->driver_id, xform, sess, pool);
 322 }
 323
 324
 325 static void
 326 otx_cpt_session_clear(struct rte_cryptodev *dev,
 327                   struct rte_cryptodev_sym_session *sess)
 328 {
 329         CPT_PMD_INIT_FUNC_TRACE();
 330
 331         return sym_session_clear(dev->driver_id, sess);
 332 }
 333
 334 static unsigned int
 335 otx_cpt_asym_session_size_get(struct rte_cryptodev *dev __rte_unused)
 336 {
 337         return sizeof(struct cpt_asym_sess_misc);
 338 }
 339
 340 static int
 341 otx_cpt_asym_session_cfg(struct rte_cryptodev *dev,
 342                          struct rte_crypto_asym_xform *xform __rte_unused,
 343                          struct rte_cryptodev_asym_session *sess,
 344                          struct rte_mempool *pool)
 345 {
 346         struct cpt_asym_sess_misc *priv;
 347         int ret;
 348
 349         CPT_PMD_INIT_FUNC_TRACE();
 350
 351         if (rte_mempool_get(pool, (void **)&priv)) {
 352                 CPT_LOG_ERR("Could not allocate session private data");
 353                 return -ENOMEM;
 354         }
 355
 356         memset(priv, 0, sizeof(struct cpt_asym_sess_misc));
 357
 358         ret = cpt_fill_asym_session_parameters(priv, xform);
 359         if (ret) {
 360                 CPT_LOG_ERR("Could not configure session parameters");
 361
 362                 /* Return session to mempool */
 363                 rte_mempool_put(pool, priv);
 364                 return ret;
 365         }
 366
 367         set_asym_session_private_data(sess, dev->driver_id, priv);
 368         return 0;
 369 }
 370
 371 static void
 372 otx_cpt_asym_session_clear(struct rte_cryptodev *dev,
 373                            struct rte_cryptodev_asym_session *sess)
 374 {
 375         struct cpt_asym_sess_misc *priv;
 376         struct rte_mempool *sess_mp;
 377
 378         CPT_PMD_INIT_FUNC_TRACE();
 379
 380         priv = get_asym_session_private_data(sess, dev->driver_id);
 381
 382         if (priv == NULL)
 383                 return;
 384
 385         /* Free resources allocated during session configure */
 386         cpt_free_asym_session_parameters(priv);
 387         memset(priv, 0, otx_cpt_asym_session_size_get(dev));
 388         sess_mp = rte_mempool_from_obj(priv);
 389         set_asym_session_private_data(sess, dev->driver_id, NULL);
 390         rte_mempool_put(sess_mp, priv);
 391 }
 392
 393 static __rte_always_inline int32_t __rte_hot
 394 otx_cpt_request_enqueue(struct cpt_instance *instance,
 395                         struct pending_queue *pqueue,
 396                         void *req)
 397 {
 398         struct cpt_request_info *user_req = (struct cpt_request_info *)req;
 399
 400         if (unlikely(pqueue->pending_count >= DEFAULT_CMD_QLEN))
 401                 return -EAGAIN;
 402
 403         fill_cpt_inst(instance, req);
 404
 405         CPT_LOG_DP_DEBUG("req: %p op: %p ", req, user_req->op);
 406
 407         /* Fill time_out cycles */
 408         user_req->time_out = rte_get_timer_cycles() +
 409                         DEFAULT_COMMAND_TIMEOUT * rte_get_timer_hz();
 410         user_req->extra_time = 0;
 411
 412         /* Default mode of software queue */
 413         mark_cpt_inst(instance);
 414
 415         pqueue->rid_queue[pqueue->enq_tail].rid = (uintptr_t)user_req;
 416
 417         /* We will use soft queue length here to limit requests */
 418         MOD_INC(pqueue->enq_tail, DEFAULT_CMD_QLEN);
 419         pqueue->pending_count += 1;
 420
 421         CPT_LOG_DP_DEBUG("Submitted NB cmd with request: %p "
 422                          "op: %p", user_req, user_req->op);
 423         return 0;
 424 }
 425
 426 static __rte_always_inline int __rte_hot
 427 otx_cpt_enq_single_asym(struct cpt_instance *instance,
 428                         struct rte_crypto_op *op,
 429                         struct pending_queue *pqueue)
 430 {
 431         struct cpt_qp_meta_info *minfo = &instance->meta_info;
 432         struct rte_crypto_asym_op *asym_op = op->asym;
 433         struct asym_op_params params = {0};
 434         struct cpt_asym_sess_misc *sess;
 435         uintptr_t *cop;
 436         void *mdata;
 437         int ret;
 438
 439         if (unlikely(rte_mempool_get(minfo->pool, &mdata) < 0)) {
 440                 CPT_LOG_DP_ERR("Could not allocate meta buffer for request");
 441                 return -ENOMEM;
 442         }
 443
 444         sess = get_asym_session_private_data(asym_op->session,
 445                                              otx_cryptodev_driver_id);
 446
 447         /* Store phys_addr of the mdata to meta_buf */
 448         params.meta_buf = rte_mempool_virt2iova(mdata);
 449
 450         cop = mdata;
 451         cop[0] = (uintptr_t)mdata;
 452         cop[1] = (uintptr_t)op;
 453         cop[2] = cop[3] = 0ULL;
 454
 455         params.req = RTE_PTR_ADD(cop, 4 * sizeof(uintptr_t));
 456         params.req->op = cop;
 457
 458         /* Adjust meta_buf by crypto_op data  and request_info struct */
 459         params.meta_buf += (4 * sizeof(uintptr_t)) +
 460                            sizeof(struct cpt_request_info);
 461
 462         switch (sess->xfrm_type) {
 463         case RTE_CRYPTO_ASYM_XFORM_MODEX:
 464                 ret = cpt_modex_prep(&params, &sess->mod_ctx);
 465                 if (unlikely(ret))
 466                         goto req_fail;
 467                 break;
 468         case RTE_CRYPTO_ASYM_XFORM_RSA:
 469                 ret = cpt_enqueue_rsa_op(op, &params, sess);
 470                 if (unlikely(ret))
 471                         goto req_fail;
 472                 break;
 473         case RTE_CRYPTO_ASYM_XFORM_ECDSA:
 474                 ret = cpt_enqueue_ecdsa_op(op, &params, sess, otx_fpm_iova);
 475                 if (unlikely(ret))
 476                         goto req_fail;
 477                 break;
 478         case RTE_CRYPTO_ASYM_XFORM_ECPM:
 479                 ret = cpt_ecpm_prep(&asym_op->ecpm, &params,
 480                                     sess->ec_ctx.curveid);
 481                 if (unlikely(ret))
 482                         goto req_fail;
 483                 break;
 484
 485         default:
 486                 op->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 487                 ret = -EINVAL;
 488                 goto req_fail;
 489         }
 490
 491         ret = otx_cpt_request_enqueue(instance, pqueue, params.req);
 492
 493         if (unlikely(ret)) {
 494                 CPT_LOG_DP_ERR("Could not enqueue crypto req");
 495                 goto req_fail;
 496         }
 497
 498         return 0;
 499
 500 req_fail:
 501         free_op_meta(mdata, minfo->pool);
 502
 503         return ret;
 504 }
 505
 506 static __rte_always_inline int __rte_hot
 507 otx_cpt_enq_single_sym(struct cpt_instance *instance,
 508                        struct rte_crypto_op *op,
 509                        struct pending_queue *pqueue)
 510 {
 511         struct cpt_sess_misc *sess;
 512         struct rte_crypto_sym_op *sym_op = op->sym;
 513         void *prep_req, *mdata = NULL;
 514         int ret = 0;
 515         uint64_t cpt_op;
 516
 517         sess = (struct cpt_sess_misc *)
 518                         get_sym_session_private_data(sym_op->session,
 519                                                      otx_cryptodev_driver_id);
 520
 521         cpt_op = sess->cpt_op;
 522
 523         if (likely(cpt_op & CPT_OP_CIPHER_MASK))
 524                 ret = fill_fc_params(op, sess, &instance->meta_info, &mdata,
 525                                      &prep_req);
 526         else
 527                 ret = fill_digest_params(op, sess, &instance->meta_info,
 528                                          &mdata, &prep_req);
 529
 530         if (unlikely(ret)) {
 531                 CPT_LOG_DP_ERR("prep cryto req : op %p, cpt_op 0x%x "
 532                                "ret 0x%x", op, (unsigned int)cpt_op, ret);
 533                 return ret;
 534         }
 535
 536         /* Enqueue prepared instruction to h/w */
 537         ret = otx_cpt_request_enqueue(instance, pqueue, prep_req);
 538
 539         if (unlikely(ret)) {
 540                 /* Buffer allocated for request preparation need to be freed */
 541                 free_op_meta(mdata, instance->meta_info.pool);
 542                 return ret;
 543         }
 544
 545         return 0;
 546 }
 547
 548 static __rte_always_inline int __rte_hot
 549 otx_cpt_enq_single_sym_sessless(struct cpt_instance *instance,
 550                                 struct rte_crypto_op *op,
 551                                 struct pending_queue *pend_q)
 552 {
 553         const int driver_id = otx_cryptodev_driver_id;
 554         struct rte_crypto_sym_op *sym_op = op->sym;
 555         struct rte_cryptodev_sym_session *sess;
 556         int ret;
 557
 558         /* Create temporary session */
 559
 560         if (rte_mempool_get(instance->sess_mp, (void **)&sess))
 561                 return -ENOMEM;
 562
 563         ret = sym_session_configure(driver_id, sym_op->xform, sess,
 564                                     instance->sess_mp_priv);
 565         if (ret)
 566                 goto sess_put;
 567
 568         sym_op->session = sess;
 569
 570         ret = otx_cpt_enq_single_sym(instance, op, pend_q);
 571
 572         if (unlikely(ret))
 573                 goto priv_put;
 574
 575         return 0;
 576
 577 priv_put:
 578         sym_session_clear(driver_id, sess);
 579 sess_put:
 580         rte_mempool_put(instance->sess_mp, sess);
 581         return ret;
 582 }
 583
 584 #define OP_TYPE_SYM             0
 585 #define OP_TYPE_ASYM            1
 586
 587 static __rte_always_inline int __rte_hot
 588 otx_cpt_enq_single(struct cpt_instance *inst,
 589                    struct rte_crypto_op *op,
 590                    struct pending_queue *pqueue,
 591                    const uint8_t op_type)
 592 {
 593         /* Check for the type */
 594
 595         if (op_type == OP_TYPE_SYM) {
 596                 if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION)
 597                         return otx_cpt_enq_single_sym(inst, op, pqueue);
 598                 else
 599                         return otx_cpt_enq_single_sym_sessless(inst, op,
 600                                                                pqueue);
 601         }
 602
 603         if (op_type == OP_TYPE_ASYM) {
 604                 if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION)
 605                         return otx_cpt_enq_single_asym(inst, op, pqueue);
 606         }
 607
 608         /* Should not reach here */
 609         return -ENOTSUP;
 610 }
 611
 612 static  __rte_always_inline uint16_t __rte_hot
 613 otx_cpt_pkt_enqueue(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops,
 614                     const uint8_t op_type)
 615 {
 616         struct cpt_instance *instance = (struct cpt_instance *)qptr;
 617         uint16_t count;
 618         int ret;
 619         struct cpt_vf *cptvf = (struct cpt_vf *)instance;
 620         struct pending_queue *pqueue = &cptvf->pqueue;
 621
 622         count = DEFAULT_CMD_QLEN - pqueue->pending_count;
 623         if (nb_ops > count)
 624                 nb_ops = count;
 625
 626         count = 0;
 627         while (likely(count < nb_ops)) {
 628
 629                 /* Enqueue single op */
 630                 ret = otx_cpt_enq_single(instance, ops[count], pqueue, op_type);
 631
 632                 if (unlikely(ret))
 633                         break;
 634                 count++;
 635         }
 636         otx_cpt_ring_dbell(instance, count);
 637         return count;
 638 }
 639
 640 static uint16_t
 641 otx_cpt_enqueue_asym(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops)
 642 {
 643         return otx_cpt_pkt_enqueue(qptr, ops, nb_ops, OP_TYPE_ASYM);
 644 }
 645
 646 static uint16_t
 647 otx_cpt_enqueue_sym(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops)
 648 {
 649         return otx_cpt_pkt_enqueue(qptr, ops, nb_ops, OP_TYPE_SYM);
 650 }
 651
 652 static inline void
 653 otx_cpt_asym_rsa_op(struct rte_crypto_op *cop, struct cpt_request_info *req,
 654                     struct rte_crypto_rsa_xform *rsa_ctx)
 655
 656 {
 657         struct rte_crypto_rsa_op_param *rsa = &cop->asym->rsa;
 658
 659         switch (rsa->op_type) {
 660         case RTE_CRYPTO_ASYM_OP_ENCRYPT:
 661                 rsa->cipher.length = rsa_ctx->n.length;
 662                 memcpy(rsa->cipher.data, req->rptr, rsa->cipher.length);
 663                 break;
 664         case RTE_CRYPTO_ASYM_OP_DECRYPT:
 665                 if (rsa->pad == RTE_CRYPTO_RSA_PADDING_NONE)
 666                         rsa->message.length = rsa_ctx->n.length;
 667                 else {
 668                         /* Get length of decrypted output */
 669                         rsa->message.length = rte_cpu_to_be_16
 670                                         (*((uint16_t *)req->rptr));
 671
 672                         /* Offset data pointer by length fields */
 673                         req->rptr += 2;
 674                 }
 675                 memcpy(rsa->message.data, req->rptr, rsa->message.length);
 676                 break;
 677         case RTE_CRYPTO_ASYM_OP_SIGN:
 678                 rsa->sign.length = rsa_ctx->n.length;
 679                 memcpy(rsa->sign.data, req->rptr, rsa->sign.length);
 680                 break;
 681         case RTE_CRYPTO_ASYM_OP_VERIFY:
 682                 if (rsa->pad == RTE_CRYPTO_RSA_PADDING_NONE)
 683                         rsa->sign.length = rsa_ctx->n.length;
 684                 else {
 685                         /* Get length of decrypted output */
 686                         rsa->sign.length = rte_cpu_to_be_16
 687                                         (*((uint16_t *)req->rptr));
 688
 689                         /* Offset data pointer by length fields */
 690                         req->rptr += 2;
 691                 }
 692                 memcpy(rsa->sign.data, req->rptr, rsa->sign.length);
 693
 694                 if (memcmp(rsa->sign.data, rsa->message.data,
 695                            rsa->message.length)) {
 696                         CPT_LOG_DP_ERR("RSA verification failed");
 697                         cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
 698                 }
 699                 break;
 700         default:
 701                 CPT_LOG_DP_DEBUG("Invalid RSA operation type");
 702                 cop->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 703                 break;
 704         }
 705 }
 706
 707 static __rte_always_inline void
 708 otx_cpt_asym_dequeue_ecdsa_op(struct rte_crypto_ecdsa_op_param *ecdsa,
 709                             struct cpt_request_info *req,
 710                             struct cpt_asym_ec_ctx *ec)
 711
 712 {
 713         int prime_len = ec_grp[ec->curveid].prime.length;
 714
 715         if (ecdsa->op_type == RTE_CRYPTO_ASYM_OP_VERIFY)
 716                 return;
 717
 718         /* Separate out sign r and s components */
 719         memcpy(ecdsa->r.data, req->rptr, prime_len);
 720         memcpy(ecdsa->s.data, req->rptr + ROUNDUP8(prime_len), prime_len);
 721         ecdsa->r.length = prime_len;
 722         ecdsa->s.length = prime_len;
 723 }
 724
 725 static __rte_always_inline void
 726 otx_cpt_asym_dequeue_ecpm_op(struct rte_crypto_ecpm_op_param *ecpm,
 727                              struct cpt_request_info *req,
 728                              struct cpt_asym_ec_ctx *ec)
 729 {
 730         int prime_len = ec_grp[ec->curveid].prime.length;
 731
 732         memcpy(ecpm->r.x.data, req->rptr, prime_len);
 733         memcpy(ecpm->r.y.data, req->rptr + ROUNDUP8(prime_len), prime_len);
 734         ecpm->r.x.length = prime_len;
 735         ecpm->r.y.length = prime_len;
 736 }
 737
 738 static __rte_always_inline void __rte_hot
 739 otx_cpt_asym_post_process(struct rte_crypto_op *cop,
 740                           struct cpt_request_info *req)
 741 {
 742         struct rte_crypto_asym_op *op = cop->asym;
 743         struct cpt_asym_sess_misc *sess;
 744
 745         sess = get_asym_session_private_data(op->session,
 746                                              otx_cryptodev_driver_id);
 747
 748         switch (sess->xfrm_type) {
 749         case RTE_CRYPTO_ASYM_XFORM_RSA:
 750                 otx_cpt_asym_rsa_op(cop, req, &sess->rsa_ctx);
 751                 break;
 752         case RTE_CRYPTO_ASYM_XFORM_MODEX:
 753                 op->modex.result.length = sess->mod_ctx.modulus.length;
 754                 memcpy(op->modex.result.data, req->rptr,
 755                        op->modex.result.length);
 756                 break;
 757         case RTE_CRYPTO_ASYM_XFORM_ECDSA:
 758                 otx_cpt_asym_dequeue_ecdsa_op(&op->ecdsa, req, &sess->ec_ctx);
 759                 break;
 760         case RTE_CRYPTO_ASYM_XFORM_ECPM:
 761                 otx_cpt_asym_dequeue_ecpm_op(&op->ecpm, req, &sess->ec_ctx);
 762                 break;
 763         default:
 764                 CPT_LOG_DP_DEBUG("Invalid crypto xform type");
 765                 cop->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 766                 break;
 767         }
 768 }
 769
 770 static __rte_always_inline void __rte_hot
 771 otx_cpt_dequeue_post_process(struct rte_crypto_op *cop, uintptr_t *rsp,
 772                              const uint8_t op_type)
 773 {
 774         /* H/w has returned success */
 775         cop->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
 776
 777         /* Perform further post processing */
 778
 779         if ((op_type == OP_TYPE_SYM) &&
 780             (cop->type == RTE_CRYPTO_OP_TYPE_SYMMETRIC)) {
 781                 /* Check if auth verify need to be completed */
 782                 if (unlikely(rsp[2]))
 783                         compl_auth_verify(cop, (uint8_t *)rsp[2], rsp[3]);
 784                 return;
 785         }
 786
 787         if ((op_type == OP_TYPE_ASYM) &&
 788             (cop->type == RTE_CRYPTO_OP_TYPE_ASYMMETRIC)) {
 789                 rsp = RTE_PTR_ADD(rsp, 4 * sizeof(uintptr_t));
 790                 otx_cpt_asym_post_process(cop, (struct cpt_request_info *)rsp);
 791         }
 792
 793         return;
 794 }
 795
 796 static __rte_always_inline uint16_t __rte_hot
 797 otx_cpt_pkt_dequeue(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops,
 798                     const uint8_t op_type)
 799 {
 800         struct cpt_instance *instance = (struct cpt_instance *)qptr;
 801         struct cpt_request_info *user_req;
 802         struct cpt_vf *cptvf = (struct cpt_vf *)instance;
 803         struct rid *rid_e;
 804         uint8_t cc[nb_ops];
 805         int i, count, pcount;
 806         uint8_t ret;
 807         int nb_completed;
 808         struct pending_queue *pqueue = &cptvf->pqueue;
 809         struct rte_crypto_op *cop;
 810         void *metabuf;
 811         uintptr_t *rsp;
 812
 813         pcount = pqueue->pending_count;
 814         count = (nb_ops > pcount) ? pcount : nb_ops;
 815
 816         for (i = 0; i < count; i++) {
 817                 rid_e = &pqueue->rid_queue[pqueue->deq_head];
 818                 user_req = (struct cpt_request_info *)(rid_e->rid);
 819
 820                 if (likely((i+1) < count))
 821                         rte_prefetch_non_temporal((void *)rid_e[1].rid);
 822
 823                 ret = check_nb_command_id(user_req, instance);
 824
 825                 if (unlikely(ret == ERR_REQ_PENDING)) {
 826                         /* Stop checking for completions */
 827                         break;
 828                 }
 829
 830                 /* Return completion code and op handle */
 831                 cc[i] = ret;
 832                 ops[i] = user_req->op;
 833
 834                 CPT_LOG_DP_DEBUG("Request %p Op %p completed with code %d",
 835                                  user_req, user_req->op, ret);
 836
 837                 MOD_INC(pqueue->deq_head, DEFAULT_CMD_QLEN);
 838                 pqueue->pending_count -= 1;
 839         }
 840
 841         nb_completed = i;
 842
 843         for (i = 0; i < nb_completed; i++) {
 844
 845                 rsp = (void *)ops[i];
 846
 847                 if (likely((i + 1) < nb_completed))
 848                         rte_prefetch0(ops[i+1]);
 849
 850                 metabuf = (void *)rsp[0];
 851                 cop = (void *)rsp[1];
 852
 853                 ops[i] = cop;
 854
 855                 /* Check completion code */
 856
 857                 if (likely(cc[i] == 0)) {
 858                         /* H/w success pkt. Post process */
 859                         otx_cpt_dequeue_post_process(cop, rsp, op_type);
 860                 } else if (cc[i] == ERR_GC_ICV_MISCOMPARE) {
 861                         /* auth data mismatch */
 862                         cop->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
 863                 } else {
 864                         /* Error */
 865                         cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
 866                 }
 867
 868                 if (unlikely(cop->sess_type == RTE_CRYPTO_OP_SESSIONLESS)) {
 869                         void *sess_private_data_t =
 870                                 get_sym_session_private_data(cop->sym->session,
 871                                                 otx_cryptodev_driver_id);
 872                         memset(sess_private_data_t, 0,
 873                                         cpt_get_session_size());
 874                         memset(cop->sym->session, 0,
 875                         rte_cryptodev_sym_get_existing_header_session_size(
 876                                         cop->sym->session));
 877                         rte_mempool_put(instance->sess_mp_priv,
 878                                         sess_private_data_t);
 879                         rte_mempool_put(instance->sess_mp, cop->sym->session);
 880                         cop->sym->session = NULL;
 881                 }
 882                 free_op_meta(metabuf, instance->meta_info.pool);
 883         }
 884
 885         return nb_completed;
 886 }
 887
 888 static uint16_t
 889 otx_cpt_dequeue_asym(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops)
 890 {
 891         return otx_cpt_pkt_dequeue(qptr, ops, nb_ops, OP_TYPE_ASYM);
 892 }
 893
 894 static uint16_t
 895 otx_cpt_dequeue_sym(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops)
 896 {
 897         return otx_cpt_pkt_dequeue(qptr, ops, nb_ops, OP_TYPE_SYM);
 898 }
 899
 900 static struct rte_cryptodev_ops cptvf_ops = {
 901         /* Device related operations */
 902         .dev_configure = otx_cpt_dev_config,
 903         .dev_start = otx_cpt_dev_start,
 904         .dev_stop = otx_cpt_dev_stop,
 905         .dev_close = otx_cpt_dev_close,
 906         .dev_infos_get = otx_cpt_dev_info_get,
 907
 908         .stats_get = NULL,
 909         .stats_reset = NULL,
 910         .queue_pair_setup = otx_cpt_que_pair_setup,
 911         .queue_pair_release = otx_cpt_que_pair_release,
 912
 913         /* Crypto related operations */
 914         .sym_session_get_size = otx_cpt_get_session_size,
 915         .sym_session_configure = otx_cpt_session_cfg,
 916         .sym_session_clear = otx_cpt_session_clear,
 917
 918         .asym_session_get_size = otx_cpt_asym_session_size_get,
 919         .asym_session_configure = otx_cpt_asym_session_cfg,
 920         .asym_session_clear = otx_cpt_asym_session_clear,
 921 };
 922
 923 int
 924 otx_cpt_dev_create(struct rte_cryptodev *c_dev)
 925 {
 926         struct rte_pci_device *pdev = RTE_DEV_TO_PCI(c_dev->device);
 927         struct cpt_vf *cptvf = NULL;
 928         void *reg_base;
 929         char dev_name[32];
 930         int ret;
 931
 932         if (pdev->mem_resource[0].phys_addr == 0ULL)
 933                 return -EIO;
 934
 935         /* for secondary processes, we don't initialise any further as primary
 936          * has already done this work.
 937          */
 938         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 939                 return 0;
 940
 941         cptvf = rte_zmalloc_socket("otx_cryptodev_private_mem",
 942                         sizeof(struct cpt_vf), RTE_CACHE_LINE_SIZE,
 943                         rte_socket_id());
 944
 945         if (cptvf == NULL) {
 946                 CPT_LOG_ERR("Cannot allocate memory for device private data");
 947                 return -ENOMEM;
 948         }
 949
 950         snprintf(dev_name, 32, "%02x:%02x.%x",
 951                         pdev->addr.bus, pdev->addr.devid, pdev->addr.function);
 952
 953         reg_base = pdev->mem_resource[0].addr;
 954         if (!reg_base) {
 955                 CPT_LOG_ERR("Failed to map BAR0 of %s", dev_name);
 956                 ret = -ENODEV;
 957                 goto fail;
 958         }
 959
 960         ret = otx_cpt_hw_init(cptvf, pdev, reg_base, dev_name);
 961         if (ret) {
 962                 CPT_LOG_ERR("Failed to init cptvf %s", dev_name);
 963                 ret = -EIO;
 964                 goto fail;
 965         }
 966
 967         switch (cptvf->vftype) {
 968         case OTX_CPT_VF_TYPE_AE:
 969                 /* Set asymmetric cpt feature flags */
 970                 c_dev->feature_flags = RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO |
 971                                 RTE_CRYPTODEV_FF_HW_ACCELERATED |
 972                                 RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_QT;
 973                 break;
 974         case OTX_CPT_VF_TYPE_SE:
 975                 /* Set symmetric cpt feature flags */
 976                 c_dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
 977                                 RTE_CRYPTODEV_FF_HW_ACCELERATED |
 978                                 RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
 979                                 RTE_CRYPTODEV_FF_IN_PLACE_SGL |
 980                                 RTE_CRYPTODEV_FF_OOP_SGL_IN_LB_OUT |
 981                                 RTE_CRYPTODEV_FF_OOP_SGL_IN_SGL_OUT |
 982                                 RTE_CRYPTODEV_FF_SYM_SESSIONLESS;
 983                 break;
 984         default:
 985                 /* Feature not supported. Abort */
 986                 CPT_LOG_ERR("VF type not supported by %s", dev_name);
 987                 ret = -EIO;
 988                 goto deinit_dev;
 989         }
 990
 991         /* Start off timer for mailbox interrupts */
 992         otx_cpt_periodic_alarm_start(cptvf);
 993
 994         c_dev->dev_ops = &cptvf_ops;
 995
 996         if (c_dev->feature_flags & RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO) {
 997                 c_dev->enqueue_burst = otx_cpt_enqueue_sym;
 998                 c_dev->dequeue_burst = otx_cpt_dequeue_sym;
 999         } else {
1000                 c_dev->enqueue_burst = otx_cpt_enqueue_asym;
1001                 c_dev->dequeue_burst = otx_cpt_dequeue_asym;
1002         }
1003
1004         /* Save dev private data */
1005         c_dev->data->dev_private = cptvf;
1006
1007         return 0;
1008
1009 deinit_dev:
1010         otx_cpt_deinit_device(cptvf);
1011
1012 fail:
1013         if (cptvf) {
1014                 /* Free private data allocated */
1015                 rte_free(cptvf);
1016         }
1017
1018         return ret;
1019 }