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         vq_cmd_word3_t vq_cmd_w3;
 245         void *priv;
 246         int ret;
 247
 248         ret = sym_xform_verify(xform);
 249         if (unlikely(ret))
 250                 return ret;
 251
 252         if (unlikely(rte_mempool_get(pool, &priv))) {
 253                 CPT_LOG_ERR("Could not allocate session private data");
 254                 return -ENOMEM;
 255         }
 256
 257         memset(priv, 0, sizeof(struct cpt_sess_misc) +
 258                         offsetof(struct cpt_ctx, mc_ctx));
 259
 260         misc = priv;
 261
 262         for ( ; xform != NULL; xform = xform->next) {
 263                 switch (xform->type) {
 264                 case RTE_CRYPTO_SYM_XFORM_AEAD:
 265                         ret = fill_sess_aead(xform, misc);
 266                         break;
 267                 case RTE_CRYPTO_SYM_XFORM_CIPHER:
 268                         ret = fill_sess_cipher(xform, misc);
 269                         break;
 270                 case RTE_CRYPTO_SYM_XFORM_AUTH:
 271                         if (xform->auth.algo == RTE_CRYPTO_AUTH_AES_GMAC)
 272                                 ret = fill_sess_gmac(xform, misc);
 273                         else
 274                                 ret = fill_sess_auth(xform, misc);
 275                         break;
 276                 default:
 277                         ret = -1;
 278                 }
 279
 280                 if (ret)
 281                         goto priv_put;
 282         }
 283
 284         if ((GET_SESS_FC_TYPE(misc) == HASH_HMAC) &&
 285                         cpt_mac_len_verify(&temp_xform->auth)) {
 286                 CPT_LOG_ERR("MAC length is not supported");
 287                 ret = -ENOTSUP;
 288                 goto priv_put;
 289         }
 290
 291         set_sym_session_private_data(sess, driver_id, priv);
 292
 293         misc->ctx_dma_addr = rte_mempool_virt2iova(misc) +
 294                              sizeof(struct cpt_sess_misc);
 295
 296         vq_cmd_w3.u64 = 0;
 297         vq_cmd_w3.s.grp = 0;
 298         vq_cmd_w3.s.cptr = misc->ctx_dma_addr + offsetof(struct cpt_ctx,
 299                                                          mc_ctx);
 300
 301         misc->cpt_inst_w7 = vq_cmd_w3.u64;
 302
 303         return 0;
 304
 305 priv_put:
 306         if (priv)
 307                 rte_mempool_put(pool, priv);
 308         return -ENOTSUP;
 309 }
 310
 311 static void
 312 sym_session_clear(int driver_id, struct rte_cryptodev_sym_session *sess)
 313 {
 314         void *priv = get_sym_session_private_data(sess, driver_id);
 315         struct rte_mempool *pool;
 316
 317         if (priv == NULL)
 318                 return;
 319
 320         memset(priv, 0, cpt_get_session_size());
 321
 322         pool = rte_mempool_from_obj(priv);
 323
 324         set_sym_session_private_data(sess, driver_id, NULL);
 325
 326         rte_mempool_put(pool, priv);
 327 }
 328
 329 static int
 330 otx_cpt_session_cfg(struct rte_cryptodev *dev,
 331                     struct rte_crypto_sym_xform *xform,
 332                     struct rte_cryptodev_sym_session *sess,
 333                     struct rte_mempool *pool)
 334 {
 335         CPT_PMD_INIT_FUNC_TRACE();
 336
 337         return sym_session_configure(dev->driver_id, xform, sess, pool);
 338 }
 339
 340
 341 static void
 342 otx_cpt_session_clear(struct rte_cryptodev *dev,
 343                   struct rte_cryptodev_sym_session *sess)
 344 {
 345         CPT_PMD_INIT_FUNC_TRACE();
 346
 347         return sym_session_clear(dev->driver_id, sess);
 348 }
 349
 350 static unsigned int
 351 otx_cpt_asym_session_size_get(struct rte_cryptodev *dev __rte_unused)
 352 {
 353         return sizeof(struct cpt_asym_sess_misc);
 354 }
 355
 356 static int
 357 otx_cpt_asym_session_cfg(struct rte_cryptodev *dev,
 358                          struct rte_crypto_asym_xform *xform __rte_unused,
 359                          struct rte_cryptodev_asym_session *sess,
 360                          struct rte_mempool *pool)
 361 {
 362         struct cpt_asym_sess_misc *priv;
 363         int ret;
 364
 365         CPT_PMD_INIT_FUNC_TRACE();
 366
 367         if (rte_mempool_get(pool, (void **)&priv)) {
 368                 CPT_LOG_ERR("Could not allocate session private data");
 369                 return -ENOMEM;
 370         }
 371
 372         memset(priv, 0, sizeof(struct cpt_asym_sess_misc));
 373
 374         ret = cpt_fill_asym_session_parameters(priv, xform);
 375         if (ret) {
 376                 CPT_LOG_ERR("Could not configure session parameters");
 377
 378                 /* Return session to mempool */
 379                 rte_mempool_put(pool, priv);
 380                 return ret;
 381         }
 382
 383         priv->cpt_inst_w7 = 0;
 384
 385         set_asym_session_private_data(sess, dev->driver_id, priv);
 386         return 0;
 387 }
 388
 389 static void
 390 otx_cpt_asym_session_clear(struct rte_cryptodev *dev,
 391                            struct rte_cryptodev_asym_session *sess)
 392 {
 393         struct cpt_asym_sess_misc *priv;
 394         struct rte_mempool *sess_mp;
 395
 396         CPT_PMD_INIT_FUNC_TRACE();
 397
 398         priv = get_asym_session_private_data(sess, dev->driver_id);
 399
 400         if (priv == NULL)
 401                 return;
 402
 403         /* Free resources allocated during session configure */
 404         cpt_free_asym_session_parameters(priv);
 405         memset(priv, 0, otx_cpt_asym_session_size_get(dev));
 406         sess_mp = rte_mempool_from_obj(priv);
 407         set_asym_session_private_data(sess, dev->driver_id, NULL);
 408         rte_mempool_put(sess_mp, priv);
 409 }
 410
 411 static __rte_always_inline int32_t __rte_hot
 412 otx_cpt_request_enqueue(struct cpt_instance *instance,
 413                         struct pending_queue *pqueue,
 414                         void *req, uint64_t cpt_inst_w7)
 415 {
 416         struct cpt_request_info *user_req = (struct cpt_request_info *)req;
 417
 418         if (unlikely(pqueue->pending_count >= DEFAULT_CMD_QLEN))
 419                 return -EAGAIN;
 420
 421         fill_cpt_inst(instance, req, cpt_inst_w7);
 422
 423         CPT_LOG_DP_DEBUG("req: %p op: %p ", req, user_req->op);
 424
 425         /* Fill time_out cycles */
 426         user_req->time_out = rte_get_timer_cycles() +
 427                         DEFAULT_COMMAND_TIMEOUT * rte_get_timer_hz();
 428         user_req->extra_time = 0;
 429
 430         /* Default mode of software queue */
 431         mark_cpt_inst(instance);
 432
 433         pqueue->req_queue[pqueue->enq_tail] = (uintptr_t)user_req;
 434
 435         /* We will use soft queue length here to limit requests */
 436         MOD_INC(pqueue->enq_tail, DEFAULT_CMD_QLEN);
 437         pqueue->pending_count += 1;
 438
 439         CPT_LOG_DP_DEBUG("Submitted NB cmd with request: %p "
 440                          "op: %p", user_req, user_req->op);
 441         return 0;
 442 }
 443
 444 static __rte_always_inline int __rte_hot
 445 otx_cpt_enq_single_asym(struct cpt_instance *instance,
 446                         struct rte_crypto_op *op,
 447                         struct pending_queue *pqueue)
 448 {
 449         struct cpt_qp_meta_info *minfo = &instance->meta_info;
 450         struct rte_crypto_asym_op *asym_op = op->asym;
 451         struct asym_op_params params = {0};
 452         struct cpt_asym_sess_misc *sess;
 453         uintptr_t *cop;
 454         void *mdata;
 455         int ret;
 456
 457         if (unlikely(rte_mempool_get(minfo->pool, &mdata) < 0)) {
 458                 CPT_LOG_DP_ERR("Could not allocate meta buffer for request");
 459                 return -ENOMEM;
 460         }
 461
 462         sess = get_asym_session_private_data(asym_op->session,
 463                                              otx_cryptodev_driver_id);
 464
 465         /* Store phys_addr of the mdata to meta_buf */
 466         params.meta_buf = rte_mempool_virt2iova(mdata);
 467
 468         cop = mdata;
 469         cop[0] = (uintptr_t)mdata;
 470         cop[1] = (uintptr_t)op;
 471         cop[2] = cop[3] = 0ULL;
 472
 473         params.req = RTE_PTR_ADD(cop, 4 * sizeof(uintptr_t));
 474         params.req->op = cop;
 475
 476         /* Adjust meta_buf by crypto_op data  and request_info struct */
 477         params.meta_buf += (4 * sizeof(uintptr_t)) +
 478                            sizeof(struct cpt_request_info);
 479
 480         switch (sess->xfrm_type) {
 481         case RTE_CRYPTO_ASYM_XFORM_MODEX:
 482                 ret = cpt_modex_prep(&params, &sess->mod_ctx);
 483                 if (unlikely(ret))
 484                         goto req_fail;
 485                 break;
 486         case RTE_CRYPTO_ASYM_XFORM_RSA:
 487                 ret = cpt_enqueue_rsa_op(op, &params, sess);
 488                 if (unlikely(ret))
 489                         goto req_fail;
 490                 break;
 491         case RTE_CRYPTO_ASYM_XFORM_ECDSA:
 492                 ret = cpt_enqueue_ecdsa_op(op, &params, sess, otx_fpm_iova);
 493                 if (unlikely(ret))
 494                         goto req_fail;
 495                 break;
 496         case RTE_CRYPTO_ASYM_XFORM_ECPM:
 497                 ret = cpt_ecpm_prep(&asym_op->ecpm, &params,
 498                                     sess->ec_ctx.curveid);
 499                 if (unlikely(ret))
 500                         goto req_fail;
 501                 break;
 502
 503         default:
 504                 op->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 505                 ret = -EINVAL;
 506                 goto req_fail;
 507         }
 508
 509         ret = otx_cpt_request_enqueue(instance, pqueue, params.req,
 510                                       sess->cpt_inst_w7);
 511
 512         if (unlikely(ret)) {
 513                 CPT_LOG_DP_ERR("Could not enqueue crypto req");
 514                 goto req_fail;
 515         }
 516
 517         return 0;
 518
 519 req_fail:
 520         free_op_meta(mdata, minfo->pool);
 521
 522         return ret;
 523 }
 524
 525 static __rte_always_inline int __rte_hot
 526 otx_cpt_enq_single_sym(struct cpt_instance *instance,
 527                        struct rte_crypto_op *op,
 528                        struct pending_queue *pqueue)
 529 {
 530         struct cpt_sess_misc *sess;
 531         struct rte_crypto_sym_op *sym_op = op->sym;
 532         struct cpt_request_info *prep_req;
 533         void *mdata = NULL;
 534         int ret = 0;
 535         uint64_t cpt_op;
 536
 537         sess = (struct cpt_sess_misc *)
 538                         get_sym_session_private_data(sym_op->session,
 539                                                      otx_cryptodev_driver_id);
 540
 541         cpt_op = sess->cpt_op;
 542
 543         if (likely(cpt_op & CPT_OP_CIPHER_MASK))
 544                 ret = fill_fc_params(op, sess, &instance->meta_info, &mdata,
 545                                      (void **)&prep_req);
 546         else
 547                 ret = fill_digest_params(op, sess, &instance->meta_info,
 548                                          &mdata, (void **)&prep_req);
 549
 550         if (unlikely(ret)) {
 551                 CPT_LOG_DP_ERR("prep cryto req : op %p, cpt_op 0x%x "
 552                                "ret 0x%x", op, (unsigned int)cpt_op, ret);
 553                 return ret;
 554         }
 555
 556         /* Enqueue prepared instruction to h/w */
 557         ret = otx_cpt_request_enqueue(instance, pqueue, prep_req,
 558                                       sess->cpt_inst_w7);
 559
 560         if (unlikely(ret)) {
 561                 /* Buffer allocated for request preparation need to be freed */
 562                 free_op_meta(mdata, instance->meta_info.pool);
 563                 return ret;
 564         }
 565
 566         return 0;
 567 }
 568
 569 static __rte_always_inline int __rte_hot
 570 otx_cpt_enq_single_sym_sessless(struct cpt_instance *instance,
 571                                 struct rte_crypto_op *op,
 572                                 struct pending_queue *pend_q)
 573 {
 574         const int driver_id = otx_cryptodev_driver_id;
 575         struct rte_crypto_sym_op *sym_op = op->sym;
 576         struct rte_cryptodev_sym_session *sess;
 577         int ret;
 578
 579         /* Create temporary session */
 580
 581         if (rte_mempool_get(instance->sess_mp, (void **)&sess))
 582                 return -ENOMEM;
 583
 584         ret = sym_session_configure(driver_id, sym_op->xform, sess,
 585                                     instance->sess_mp_priv);
 586         if (ret)
 587                 goto sess_put;
 588
 589         sym_op->session = sess;
 590
 591         ret = otx_cpt_enq_single_sym(instance, op, pend_q);
 592
 593         if (unlikely(ret))
 594                 goto priv_put;
 595
 596         return 0;
 597
 598 priv_put:
 599         sym_session_clear(driver_id, sess);
 600 sess_put:
 601         rte_mempool_put(instance->sess_mp, sess);
 602         return ret;
 603 }
 604
 605 #define OP_TYPE_SYM             0
 606 #define OP_TYPE_ASYM            1
 607
 608 static __rte_always_inline int __rte_hot
 609 otx_cpt_enq_single(struct cpt_instance *inst,
 610                    struct rte_crypto_op *op,
 611                    struct pending_queue *pqueue,
 612                    const uint8_t op_type)
 613 {
 614         /* Check for the type */
 615
 616         if (op_type == OP_TYPE_SYM) {
 617                 if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION)
 618                         return otx_cpt_enq_single_sym(inst, op, pqueue);
 619                 else
 620                         return otx_cpt_enq_single_sym_sessless(inst, op,
 621                                                                pqueue);
 622         }
 623
 624         if (op_type == OP_TYPE_ASYM) {
 625                 if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION)
 626                         return otx_cpt_enq_single_asym(inst, op, pqueue);
 627         }
 628
 629         /* Should not reach here */
 630         return -ENOTSUP;
 631 }
 632
 633 static  __rte_always_inline uint16_t __rte_hot
 634 otx_cpt_pkt_enqueue(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops,
 635                     const uint8_t op_type)
 636 {
 637         struct cpt_instance *instance = (struct cpt_instance *)qptr;
 638         uint16_t count;
 639         int ret;
 640         struct cpt_vf *cptvf = (struct cpt_vf *)instance;
 641         struct pending_queue *pqueue = &cptvf->pqueue;
 642
 643         count = DEFAULT_CMD_QLEN - pqueue->pending_count;
 644         if (nb_ops > count)
 645                 nb_ops = count;
 646
 647         count = 0;
 648         while (likely(count < nb_ops)) {
 649
 650                 /* Enqueue single op */
 651                 ret = otx_cpt_enq_single(instance, ops[count], pqueue, op_type);
 652
 653                 if (unlikely(ret))
 654                         break;
 655                 count++;
 656         }
 657         otx_cpt_ring_dbell(instance, count);
 658         return count;
 659 }
 660
 661 static uint16_t
 662 otx_cpt_enqueue_asym(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops)
 663 {
 664         return otx_cpt_pkt_enqueue(qptr, ops, nb_ops, OP_TYPE_ASYM);
 665 }
 666
 667 static uint16_t
 668 otx_cpt_enqueue_sym(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops)
 669 {
 670         return otx_cpt_pkt_enqueue(qptr, ops, nb_ops, OP_TYPE_SYM);
 671 }
 672
 673 static inline void
 674 otx_cpt_asym_rsa_op(struct rte_crypto_op *cop, struct cpt_request_info *req,
 675                     struct rte_crypto_rsa_xform *rsa_ctx)
 676
 677 {
 678         struct rte_crypto_rsa_op_param *rsa = &cop->asym->rsa;
 679
 680         switch (rsa->op_type) {
 681         case RTE_CRYPTO_ASYM_OP_ENCRYPT:
 682                 rsa->cipher.length = rsa_ctx->n.length;
 683                 memcpy(rsa->cipher.data, req->rptr, rsa->cipher.length);
 684                 break;
 685         case RTE_CRYPTO_ASYM_OP_DECRYPT:
 686                 if (rsa->pad == RTE_CRYPTO_RSA_PADDING_NONE)
 687                         rsa->message.length = rsa_ctx->n.length;
 688                 else {
 689                         /* Get length of decrypted output */
 690                         rsa->message.length = rte_cpu_to_be_16
 691                                         (*((uint16_t *)req->rptr));
 692
 693                         /* Offset data pointer by length fields */
 694                         req->rptr += 2;
 695                 }
 696                 memcpy(rsa->message.data, req->rptr, rsa->message.length);
 697                 break;
 698         case RTE_CRYPTO_ASYM_OP_SIGN:
 699                 rsa->sign.length = rsa_ctx->n.length;
 700                 memcpy(rsa->sign.data, req->rptr, rsa->sign.length);
 701                 break;
 702         case RTE_CRYPTO_ASYM_OP_VERIFY:
 703                 if (rsa->pad == RTE_CRYPTO_RSA_PADDING_NONE)
 704                         rsa->sign.length = rsa_ctx->n.length;
 705                 else {
 706                         /* Get length of decrypted output */
 707                         rsa->sign.length = rte_cpu_to_be_16
 708                                         (*((uint16_t *)req->rptr));
 709
 710                         /* Offset data pointer by length fields */
 711                         req->rptr += 2;
 712                 }
 713                 memcpy(rsa->sign.data, req->rptr, rsa->sign.length);
 714
 715                 if (memcmp(rsa->sign.data, rsa->message.data,
 716                            rsa->message.length)) {
 717                         CPT_LOG_DP_ERR("RSA verification failed");
 718                         cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
 719                 }
 720                 break;
 721         default:
 722                 CPT_LOG_DP_DEBUG("Invalid RSA operation type");
 723                 cop->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 724                 break;
 725         }
 726 }
 727
 728 static __rte_always_inline void
 729 otx_cpt_asym_dequeue_ecdsa_op(struct rte_crypto_ecdsa_op_param *ecdsa,
 730                             struct cpt_request_info *req,
 731                             struct cpt_asym_ec_ctx *ec)
 732
 733 {
 734         int prime_len = ec_grp[ec->curveid].prime.length;
 735
 736         if (ecdsa->op_type == RTE_CRYPTO_ASYM_OP_VERIFY)
 737                 return;
 738
 739         /* Separate out sign r and s components */
 740         memcpy(ecdsa->r.data, req->rptr, prime_len);
 741         memcpy(ecdsa->s.data, req->rptr + RTE_ALIGN_CEIL(prime_len, 8),
 742                prime_len);
 743         ecdsa->r.length = prime_len;
 744         ecdsa->s.length = prime_len;
 745 }
 746
 747 static __rte_always_inline void
 748 otx_cpt_asym_dequeue_ecpm_op(struct rte_crypto_ecpm_op_param *ecpm,
 749                              struct cpt_request_info *req,
 750                              struct cpt_asym_ec_ctx *ec)
 751 {
 752         int prime_len = ec_grp[ec->curveid].prime.length;
 753
 754         memcpy(ecpm->r.x.data, req->rptr, prime_len);
 755         memcpy(ecpm->r.y.data, req->rptr + RTE_ALIGN_CEIL(prime_len, 8),
 756                prime_len);
 757         ecpm->r.x.length = prime_len;
 758         ecpm->r.y.length = prime_len;
 759 }
 760
 761 static __rte_always_inline void __rte_hot
 762 otx_cpt_asym_post_process(struct rte_crypto_op *cop,
 763                           struct cpt_request_info *req)
 764 {
 765         struct rte_crypto_asym_op *op = cop->asym;
 766         struct cpt_asym_sess_misc *sess;
 767
 768         sess = get_asym_session_private_data(op->session,
 769                                              otx_cryptodev_driver_id);
 770
 771         switch (sess->xfrm_type) {
 772         case RTE_CRYPTO_ASYM_XFORM_RSA:
 773                 otx_cpt_asym_rsa_op(cop, req, &sess->rsa_ctx);
 774                 break;
 775         case RTE_CRYPTO_ASYM_XFORM_MODEX:
 776                 op->modex.result.length = sess->mod_ctx.modulus.length;
 777                 memcpy(op->modex.result.data, req->rptr,
 778                        op->modex.result.length);
 779                 break;
 780         case RTE_CRYPTO_ASYM_XFORM_ECDSA:
 781                 otx_cpt_asym_dequeue_ecdsa_op(&op->ecdsa, req, &sess->ec_ctx);
 782                 break;
 783         case RTE_CRYPTO_ASYM_XFORM_ECPM:
 784                 otx_cpt_asym_dequeue_ecpm_op(&op->ecpm, req, &sess->ec_ctx);
 785                 break;
 786         default:
 787                 CPT_LOG_DP_DEBUG("Invalid crypto xform type");
 788                 cop->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 789                 break;
 790         }
 791 }
 792
 793 static __rte_always_inline void __rte_hot
 794 otx_cpt_dequeue_post_process(struct rte_crypto_op *cop, uintptr_t *rsp,
 795                              const uint8_t op_type)
 796 {
 797         /* H/w has returned success */
 798         cop->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
 799
 800         /* Perform further post processing */
 801
 802         if ((op_type == OP_TYPE_SYM) &&
 803             (cop->type == RTE_CRYPTO_OP_TYPE_SYMMETRIC)) {
 804                 /* Check if auth verify need to be completed */
 805                 if (unlikely(rsp[2]))
 806                         compl_auth_verify(cop, (uint8_t *)rsp[2], rsp[3]);
 807                 return;
 808         }
 809
 810         if ((op_type == OP_TYPE_ASYM) &&
 811             (cop->type == RTE_CRYPTO_OP_TYPE_ASYMMETRIC)) {
 812                 rsp = RTE_PTR_ADD(rsp, 4 * sizeof(uintptr_t));
 813                 otx_cpt_asym_post_process(cop, (struct cpt_request_info *)rsp);
 814         }
 815
 816         return;
 817 }
 818
 819 static __rte_always_inline uint16_t __rte_hot
 820 otx_cpt_pkt_dequeue(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops,
 821                     const uint8_t op_type)
 822 {
 823         struct cpt_instance *instance = (struct cpt_instance *)qptr;
 824         struct cpt_request_info *user_req;
 825         struct cpt_vf *cptvf = (struct cpt_vf *)instance;
 826         uint8_t cc[nb_ops];
 827         int i, count, pcount;
 828         uint8_t ret;
 829         int nb_completed;
 830         struct pending_queue *pqueue = &cptvf->pqueue;
 831         struct rte_crypto_op *cop;
 832         void *metabuf;
 833         uintptr_t *rsp;
 834
 835         pcount = pqueue->pending_count;
 836         count = (nb_ops > pcount) ? pcount : nb_ops;
 837
 838         for (i = 0; i < count; i++) {
 839                 user_req = (struct cpt_request_info *)
 840                                 pqueue->req_queue[pqueue->deq_head];
 841
 842                 if (likely((i+1) < count)) {
 843                         rte_prefetch_non_temporal(
 844                                 (void *)pqueue->req_queue[i+1]);
 845                 }
 846
 847                 ret = check_nb_command_id(user_req, instance);
 848
 849                 if (unlikely(ret == ERR_REQ_PENDING)) {
 850                         /* Stop checking for completions */
 851                         break;
 852                 }
 853
 854                 /* Return completion code and op handle */
 855                 cc[i] = ret;
 856                 ops[i] = user_req->op;
 857
 858                 CPT_LOG_DP_DEBUG("Request %p Op %p completed with code %d",
 859                                  user_req, user_req->op, ret);
 860
 861                 MOD_INC(pqueue->deq_head, DEFAULT_CMD_QLEN);
 862                 pqueue->pending_count -= 1;
 863         }
 864
 865         nb_completed = i;
 866
 867         for (i = 0; i < nb_completed; i++) {
 868
 869                 rsp = (void *)ops[i];
 870
 871                 if (likely((i + 1) < nb_completed))
 872                         rte_prefetch0(ops[i+1]);
 873
 874                 metabuf = (void *)rsp[0];
 875                 cop = (void *)rsp[1];
 876
 877                 ops[i] = cop;
 878
 879                 /* Check completion code */
 880
 881                 if (likely(cc[i] == 0)) {
 882                         /* H/w success pkt. Post process */
 883                         otx_cpt_dequeue_post_process(cop, rsp, op_type);
 884                 } else if (cc[i] == ERR_GC_ICV_MISCOMPARE) {
 885                         /* auth data mismatch */
 886                         cop->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
 887                 } else {
 888                         /* Error */
 889                         cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
 890                 }
 891
 892                 if (unlikely(cop->sess_type == RTE_CRYPTO_OP_SESSIONLESS)) {
 893                         void *sess_private_data_t =
 894                                 get_sym_session_private_data(cop->sym->session,
 895                                                 otx_cryptodev_driver_id);
 896                         memset(sess_private_data_t, 0,
 897                                         cpt_get_session_size());
 898                         memset(cop->sym->session, 0,
 899                         rte_cryptodev_sym_get_existing_header_session_size(
 900                                         cop->sym->session));
 901                         rte_mempool_put(instance->sess_mp_priv,
 902                                         sess_private_data_t);
 903                         rte_mempool_put(instance->sess_mp, cop->sym->session);
 904                         cop->sym->session = NULL;
 905                 }
 906                 free_op_meta(metabuf, instance->meta_info.pool);
 907         }
 908
 909         return nb_completed;
 910 }
 911
 912 static uint16_t
 913 otx_cpt_dequeue_asym(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops)
 914 {
 915         return otx_cpt_pkt_dequeue(qptr, ops, nb_ops, OP_TYPE_ASYM);
 916 }
 917
 918 static uint16_t
 919 otx_cpt_dequeue_sym(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops)
 920 {
 921         return otx_cpt_pkt_dequeue(qptr, ops, nb_ops, OP_TYPE_SYM);
 922 }
 923
 924 static struct rte_cryptodev_ops cptvf_ops = {
 925         /* Device related operations */
 926         .dev_configure = otx_cpt_dev_config,
 927         .dev_start = otx_cpt_dev_start,
 928         .dev_stop = otx_cpt_dev_stop,
 929         .dev_close = otx_cpt_dev_close,
 930         .dev_infos_get = otx_cpt_dev_info_get,
 931
 932         .stats_get = NULL,
 933         .stats_reset = NULL,
 934         .queue_pair_setup = otx_cpt_que_pair_setup,
 935         .queue_pair_release = otx_cpt_que_pair_release,
 936
 937         /* Crypto related operations */
 938         .sym_session_get_size = otx_cpt_get_session_size,
 939         .sym_session_configure = otx_cpt_session_cfg,
 940         .sym_session_clear = otx_cpt_session_clear,
 941
 942         .asym_session_get_size = otx_cpt_asym_session_size_get,
 943         .asym_session_configure = otx_cpt_asym_session_cfg,
 944         .asym_session_clear = otx_cpt_asym_session_clear,
 945 };
 946
 947 int
 948 otx_cpt_dev_create(struct rte_cryptodev *c_dev)
 949 {
 950         struct rte_pci_device *pdev = RTE_DEV_TO_PCI(c_dev->device);
 951         struct cpt_vf *cptvf = NULL;
 952         void *reg_base;
 953         char dev_name[32];
 954         int ret;
 955
 956         if (pdev->mem_resource[0].phys_addr == 0ULL)
 957                 return -EIO;
 958
 959         /* for secondary processes, we don't initialise any further as primary
 960          * has already done this work.
 961          */
 962         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 963                 return 0;
 964
 965         cptvf = rte_zmalloc_socket("otx_cryptodev_private_mem",
 966                         sizeof(struct cpt_vf), RTE_CACHE_LINE_SIZE,
 967                         rte_socket_id());
 968
 969         if (cptvf == NULL) {
 970                 CPT_LOG_ERR("Cannot allocate memory for device private data");
 971                 return -ENOMEM;
 972         }
 973
 974         snprintf(dev_name, 32, "%02x:%02x.%x",
 975                         pdev->addr.bus, pdev->addr.devid, pdev->addr.function);
 976
 977         reg_base = pdev->mem_resource[0].addr;
 978         if (!reg_base) {
 979                 CPT_LOG_ERR("Failed to map BAR0 of %s", dev_name);
 980                 ret = -ENODEV;
 981                 goto fail;
 982         }
 983
 984         ret = otx_cpt_hw_init(cptvf, pdev, reg_base, dev_name);
 985         if (ret) {
 986                 CPT_LOG_ERR("Failed to init cptvf %s", dev_name);
 987                 ret = -EIO;
 988                 goto fail;
 989         }
 990
 991         switch (cptvf->vftype) {
 992         case OTX_CPT_VF_TYPE_AE:
 993                 /* Set asymmetric cpt feature flags */
 994                 c_dev->feature_flags = RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO |
 995                                 RTE_CRYPTODEV_FF_HW_ACCELERATED |
 996                                 RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_QT;
 997                 break;
 998         case OTX_CPT_VF_TYPE_SE:
 999                 /* Set symmetric cpt feature flags */
1000                 c_dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
1001                                 RTE_CRYPTODEV_FF_HW_ACCELERATED |
1002                                 RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
1003                                 RTE_CRYPTODEV_FF_IN_PLACE_SGL |
1004                                 RTE_CRYPTODEV_FF_OOP_LB_IN_LB_OUT |
1005                                 RTE_CRYPTODEV_FF_OOP_SGL_IN_LB_OUT |
1006                                 RTE_CRYPTODEV_FF_OOP_SGL_IN_SGL_OUT |
1007                                 RTE_CRYPTODEV_FF_SYM_SESSIONLESS;
1008                 break;
1009         default:
1010                 /* Feature not supported. Abort */
1011                 CPT_LOG_ERR("VF type not supported by %s", dev_name);
1012                 ret = -EIO;
1013                 goto deinit_dev;
1014         }
1015
1016         /* Start off timer for mailbox interrupts */
1017         otx_cpt_periodic_alarm_start(cptvf);
1018
1019         c_dev->dev_ops = &cptvf_ops;
1020
1021         if (c_dev->feature_flags & RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO) {
1022                 c_dev->enqueue_burst = otx_cpt_enqueue_sym;
1023                 c_dev->dequeue_burst = otx_cpt_dequeue_sym;
1024         } else {
1025                 c_dev->enqueue_burst = otx_cpt_enqueue_asym;
1026                 c_dev->dequeue_burst = otx_cpt_dequeue_asym;
1027         }
1028
1029         /* Save dev private data */
1030         c_dev->data->dev_private = cptvf;
1031
1032         return 0;
1033
1034 deinit_dev:
1035         otx_cpt_deinit_device(cptvf);
1036
1037 fail:
1038         if (cptvf) {
1039                 /* Free private data allocated */
1040                 rte_free(cptvf);
1041         }
1042
1043         return ret;
1044 }