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 <cryptodev_pmd.h>
   9 #include <rte_eventdev.h>
  10 #include <rte_event_crypto_adapter.h>
  11 #include <rte_errno.h>
  12 #include <rte_malloc.h>
  13 #include <rte_mempool.h>
  14
  15 #include "otx_cryptodev.h"
  16 #include "otx_cryptodev_capabilities.h"
  17 #include "otx_cryptodev_hw_access.h"
  18 #include "otx_cryptodev_mbox.h"
  19 #include "otx_cryptodev_ops.h"
  20
  21 #include "cpt_pmd_logs.h"
  22 #include "cpt_pmd_ops_helper.h"
  23 #include "cpt_ucode.h"
  24 #include "cpt_ucode_asym.h"
  25
  26 #include "ssovf_worker.h"
  27
  28 static uint64_t otx_fpm_iova[CPT_EC_ID_PMAX];
  29
  30 /* Forward declarations */
  31
  32 static int
  33 otx_cpt_que_pair_release(struct rte_cryptodev *dev, uint16_t que_pair_id);
  34
  35 /* Alarm routines */
  36
  37 static void
  38 otx_cpt_alarm_cb(void *arg)
  39 {
  40         struct cpt_vf *cptvf = arg;
  41         otx_cpt_poll_misc(cptvf);
  42         rte_eal_alarm_set(CPT_INTR_POLL_INTERVAL_MS * 1000,
  43                           otx_cpt_alarm_cb, cptvf);
  44 }
  45
  46 static int
  47 otx_cpt_periodic_alarm_start(void *arg)
  48 {
  49         return rte_eal_alarm_set(CPT_INTR_POLL_INTERVAL_MS * 1000,
  50                                  otx_cpt_alarm_cb, arg);
  51 }
  52
  53 static int
  54 otx_cpt_periodic_alarm_stop(void *arg)
  55 {
  56         return rte_eal_alarm_cancel(otx_cpt_alarm_cb, arg);
  57 }
  58
  59 /* PMD ops */
  60
  61 static int
  62 otx_cpt_dev_config(struct rte_cryptodev *dev,
  63                    struct rte_cryptodev_config *config __rte_unused)
  64 {
  65         int ret = 0;
  66
  67         CPT_PMD_INIT_FUNC_TRACE();
  68
  69         if (dev->feature_flags & RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO)
  70                 /* Initialize shared FPM table */
  71                 ret = cpt_fpm_init(otx_fpm_iova);
  72
  73         return ret;
  74 }
  75
  76 static int
  77 otx_cpt_dev_start(struct rte_cryptodev *c_dev)
  78 {
  79         void *cptvf = c_dev->data->dev_private;
  80
  81         CPT_PMD_INIT_FUNC_TRACE();
  82
  83         return otx_cpt_start_device(cptvf);
  84 }
  85
  86 static void
  87 otx_cpt_dev_stop(struct rte_cryptodev *c_dev)
  88 {
  89         void *cptvf = c_dev->data->dev_private;
  90
  91         CPT_PMD_INIT_FUNC_TRACE();
  92
  93         if (c_dev->feature_flags & RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO)
  94                 cpt_fpm_clear();
  95
  96         otx_cpt_stop_device(cptvf);
  97 }
  98
  99 static int
 100 otx_cpt_dev_close(struct rte_cryptodev *c_dev)
 101 {
 102         void *cptvf = c_dev->data->dev_private;
 103         int i, ret;
 104
 105         CPT_PMD_INIT_FUNC_TRACE();
 106
 107         for (i = 0; i < c_dev->data->nb_queue_pairs; i++) {
 108                 ret = otx_cpt_que_pair_release(c_dev, i);
 109                 if (ret)
 110                         return ret;
 111         }
 112
 113         otx_cpt_periodic_alarm_stop(cptvf);
 114         otx_cpt_deinit_device(cptvf);
 115
 116         return 0;
 117 }
 118
 119 static void
 120 otx_cpt_dev_info_get(struct rte_cryptodev *dev, struct rte_cryptodev_info *info)
 121 {
 122         CPT_PMD_INIT_FUNC_TRACE();
 123         if (info != NULL) {
 124                 info->max_nb_queue_pairs = CPT_NUM_QS_PER_VF;
 125                 info->feature_flags = dev->feature_flags;
 126                 info->capabilities = otx_get_capabilities(info->feature_flags);
 127                 info->sym.max_nb_sessions = 0;
 128                 info->driver_id = otx_cryptodev_driver_id;
 129                 info->min_mbuf_headroom_req = OTX_CPT_MIN_HEADROOM_REQ;
 130                 info->min_mbuf_tailroom_req = OTX_CPT_MIN_TAILROOM_REQ;
 131         }
 132 }
 133
 134 static int
 135 otx_cpt_que_pair_setup(struct rte_cryptodev *dev,
 136                        uint16_t que_pair_id,
 137                        const struct rte_cryptodev_qp_conf *qp_conf,
 138                        int socket_id __rte_unused)
 139 {
 140         struct cpt_instance *instance = NULL;
 141         struct rte_pci_device *pci_dev;
 142         int ret = -1;
 143
 144         CPT_PMD_INIT_FUNC_TRACE();
 145
 146         if (dev->data->queue_pairs[que_pair_id] != NULL) {
 147                 ret = otx_cpt_que_pair_release(dev, que_pair_id);
 148                 if (ret)
 149                         return ret;
 150         }
 151
 152         if (qp_conf->nb_descriptors > DEFAULT_CMD_QLEN) {
 153                 CPT_LOG_INFO("Number of descriptors too big %d, using default "
 154                              "queue length of %d", qp_conf->nb_descriptors,
 155                              DEFAULT_CMD_QLEN);
 156         }
 157
 158         pci_dev = RTE_DEV_TO_PCI(dev->device);
 159
 160         if (pci_dev->mem_resource[0].addr == NULL) {
 161                 CPT_LOG_ERR("PCI mem address null");
 162                 return -EIO;
 163         }
 164
 165         ret = otx_cpt_get_resource(dev, 0, &instance, que_pair_id);
 166         if (ret != 0 || instance == NULL) {
 167                 CPT_LOG_ERR("Error getting instance handle from device %s : "
 168                             "ret = %d", dev->data->name, ret);
 169                 return ret;
 170         }
 171
 172         instance->queue_id = que_pair_id;
 173         instance->sess_mp = qp_conf->mp_session;
 174         instance->sess_mp_priv = qp_conf->mp_session_private;
 175         dev->data->queue_pairs[que_pair_id] = instance;
 176
 177         return 0;
 178 }
 179
 180 static int
 181 otx_cpt_que_pair_release(struct rte_cryptodev *dev, uint16_t que_pair_id)
 182 {
 183         struct cpt_instance *instance = dev->data->queue_pairs[que_pair_id];
 184         int ret;
 185
 186         CPT_PMD_INIT_FUNC_TRACE();
 187
 188         ret = otx_cpt_put_resource(instance);
 189         if (ret != 0) {
 190                 CPT_LOG_ERR("Error putting instance handle of device %s : "
 191                             "ret = %d", dev->data->name, ret);
 192                 return ret;
 193         }
 194
 195         dev->data->queue_pairs[que_pair_id] = NULL;
 196
 197         return 0;
 198 }
 199
 200 static unsigned int
 201 otx_cpt_get_session_size(struct rte_cryptodev *dev __rte_unused)
 202 {
 203         return cpt_get_session_size();
 204 }
 205
 206 static int
 207 sym_xform_verify(struct rte_crypto_sym_xform *xform)
 208 {
 209         if (xform->next) {
 210                 if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH &&
 211                     xform->next->type == RTE_CRYPTO_SYM_XFORM_CIPHER &&
 212                     xform->next->cipher.op == RTE_CRYPTO_CIPHER_OP_ENCRYPT &&
 213                     (xform->auth.algo != RTE_CRYPTO_AUTH_SHA1_HMAC ||
 214                      xform->next->cipher.algo != RTE_CRYPTO_CIPHER_AES_CBC))
 215                         return -ENOTSUP;
 216
 217                 if (xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER &&
 218                     xform->cipher.op == RTE_CRYPTO_CIPHER_OP_DECRYPT &&
 219                     xform->next->type == RTE_CRYPTO_SYM_XFORM_AUTH &&
 220                     (xform->cipher.algo != RTE_CRYPTO_CIPHER_AES_CBC ||
 221                      xform->next->auth.algo != RTE_CRYPTO_AUTH_SHA1_HMAC))
 222                         return -ENOTSUP;
 223
 224                 if (xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER &&
 225                     xform->cipher.algo == RTE_CRYPTO_CIPHER_3DES_CBC &&
 226                     xform->next->type == RTE_CRYPTO_SYM_XFORM_AUTH &&
 227                     xform->next->auth.algo == RTE_CRYPTO_AUTH_SHA1)
 228                         return -ENOTSUP;
 229
 230                 if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH &&
 231                     xform->auth.algo == RTE_CRYPTO_AUTH_SHA1 &&
 232                     xform->next->type == RTE_CRYPTO_SYM_XFORM_CIPHER &&
 233                     xform->next->cipher.algo == RTE_CRYPTO_CIPHER_3DES_CBC)
 234                         return -ENOTSUP;
 235
 236         } else {
 237                 if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH &&
 238                     xform->auth.algo == RTE_CRYPTO_AUTH_NULL &&
 239                     xform->auth.op == RTE_CRYPTO_AUTH_OP_VERIFY)
 240                         return -ENOTSUP;
 241         }
 242         return 0;
 243 }
 244
 245 static int
 246 sym_session_configure(int driver_id, struct rte_crypto_sym_xform *xform,
 247                       struct rte_cryptodev_sym_session *sess,
 248                       struct rte_mempool *pool)
 249 {
 250         struct rte_crypto_sym_xform *temp_xform = xform;
 251         struct cpt_sess_misc *misc;
 252         vq_cmd_word3_t vq_cmd_w3;
 253         void *priv;
 254         int ret;
 255
 256         ret = sym_xform_verify(xform);
 257         if (unlikely(ret))
 258                 return ret;
 259
 260         if (unlikely(rte_mempool_get(pool, &priv))) {
 261                 CPT_LOG_ERR("Could not allocate session private data");
 262                 return -ENOMEM;
 263         }
 264
 265         memset(priv, 0, sizeof(struct cpt_sess_misc) +
 266                         offsetof(struct cpt_ctx, mc_ctx));
 267
 268         misc = priv;
 269
 270         for ( ; xform != NULL; xform = xform->next) {
 271                 switch (xform->type) {
 272                 case RTE_CRYPTO_SYM_XFORM_AEAD:
 273                         ret = fill_sess_aead(xform, misc);
 274                         break;
 275                 case RTE_CRYPTO_SYM_XFORM_CIPHER:
 276                         ret = fill_sess_cipher(xform, misc);
 277                         break;
 278                 case RTE_CRYPTO_SYM_XFORM_AUTH:
 279                         if (xform->auth.algo == RTE_CRYPTO_AUTH_AES_GMAC)
 280                                 ret = fill_sess_gmac(xform, misc);
 281                         else
 282                                 ret = fill_sess_auth(xform, misc);
 283                         break;
 284                 default:
 285                         ret = -1;
 286                 }
 287
 288                 if (ret)
 289                         goto priv_put;
 290         }
 291
 292         if ((GET_SESS_FC_TYPE(misc) == HASH_HMAC) &&
 293                         cpt_mac_len_verify(&temp_xform->auth)) {
 294                 CPT_LOG_ERR("MAC length is not supported");
 295                 struct cpt_ctx *ctx = SESS_PRIV(misc);
 296                 if (ctx->auth_key != NULL) {
 297                         rte_free(ctx->auth_key);
 298                         ctx->auth_key = NULL;
 299                 }
 300                 ret = -ENOTSUP;
 301                 goto priv_put;
 302         }
 303
 304         set_sym_session_private_data(sess, driver_id, priv);
 305
 306         misc->ctx_dma_addr = rte_mempool_virt2iova(misc) +
 307                              sizeof(struct cpt_sess_misc);
 308
 309         vq_cmd_w3.u64 = 0;
 310         vq_cmd_w3.s.grp = 0;
 311         vq_cmd_w3.s.cptr = misc->ctx_dma_addr + offsetof(struct cpt_ctx,
 312                                                          mc_ctx);
 313
 314         misc->cpt_inst_w7 = vq_cmd_w3.u64;
 315
 316         return 0;
 317
 318 priv_put:
 319         if (priv)
 320                 rte_mempool_put(pool, priv);
 321         return -ENOTSUP;
 322 }
 323
 324 static void
 325 sym_session_clear(int driver_id, struct rte_cryptodev_sym_session *sess)
 326 {
 327         void *priv = get_sym_session_private_data(sess, driver_id);
 328         struct cpt_sess_misc *misc;
 329         struct rte_mempool *pool;
 330         struct cpt_ctx *ctx;
 331
 332         if (priv == NULL)
 333                 return;
 334
 335         misc = priv;
 336         ctx = SESS_PRIV(misc);
 337
 338         if (ctx->auth_key != NULL)
 339                 rte_free(ctx->auth_key);
 340
 341         memset(priv, 0, cpt_get_session_size());
 342
 343         pool = rte_mempool_from_obj(priv);
 344
 345         set_sym_session_private_data(sess, driver_id, NULL);
 346
 347         rte_mempool_put(pool, priv);
 348 }
 349
 350 static int
 351 otx_cpt_session_cfg(struct rte_cryptodev *dev,
 352                     struct rte_crypto_sym_xform *xform,
 353                     struct rte_cryptodev_sym_session *sess,
 354                     struct rte_mempool *pool)
 355 {
 356         CPT_PMD_INIT_FUNC_TRACE();
 357
 358         return sym_session_configure(dev->driver_id, xform, sess, pool);
 359 }
 360
 361
 362 static void
 363 otx_cpt_session_clear(struct rte_cryptodev *dev,
 364                   struct rte_cryptodev_sym_session *sess)
 365 {
 366         CPT_PMD_INIT_FUNC_TRACE();
 367
 368         return sym_session_clear(dev->driver_id, sess);
 369 }
 370
 371 static unsigned int
 372 otx_cpt_asym_session_size_get(struct rte_cryptodev *dev __rte_unused)
 373 {
 374         return sizeof(struct cpt_asym_sess_misc);
 375 }
 376
 377 static int
 378 otx_cpt_asym_session_cfg(struct rte_cryptodev *dev,
 379                          struct rte_crypto_asym_xform *xform __rte_unused,
 380                          struct rte_cryptodev_asym_session *sess,
 381                          struct rte_mempool *pool)
 382 {
 383         struct cpt_asym_sess_misc *priv;
 384         int ret;
 385
 386         CPT_PMD_INIT_FUNC_TRACE();
 387
 388         if (rte_mempool_get(pool, (void **)&priv)) {
 389                 CPT_LOG_ERR("Could not allocate session private data");
 390                 return -ENOMEM;
 391         }
 392
 393         memset(priv, 0, sizeof(struct cpt_asym_sess_misc));
 394
 395         ret = cpt_fill_asym_session_parameters(priv, xform);
 396         if (ret) {
 397                 CPT_LOG_ERR("Could not configure session parameters");
 398
 399                 /* Return session to mempool */
 400                 rte_mempool_put(pool, priv);
 401                 return ret;
 402         }
 403
 404         priv->cpt_inst_w7 = 0;
 405
 406         set_asym_session_private_data(sess, dev->driver_id, priv);
 407         return 0;
 408 }
 409
 410 static void
 411 otx_cpt_asym_session_clear(struct rte_cryptodev *dev,
 412                            struct rte_cryptodev_asym_session *sess)
 413 {
 414         struct cpt_asym_sess_misc *priv;
 415         struct rte_mempool *sess_mp;
 416
 417         CPT_PMD_INIT_FUNC_TRACE();
 418
 419         priv = get_asym_session_private_data(sess, dev->driver_id);
 420
 421         if (priv == NULL)
 422                 return;
 423
 424         /* Free resources allocated during session configure */
 425         cpt_free_asym_session_parameters(priv);
 426         memset(priv, 0, otx_cpt_asym_session_size_get(dev));
 427         sess_mp = rte_mempool_from_obj(priv);
 428         set_asym_session_private_data(sess, dev->driver_id, NULL);
 429         rte_mempool_put(sess_mp, priv);
 430 }
 431
 432 static __rte_always_inline void * __rte_hot
 433 otx_cpt_request_enqueue(struct cpt_instance *instance,
 434                         struct pending_queue *pqueue,
 435                         void *req, uint64_t cpt_inst_w7)
 436 {
 437         struct cpt_request_info *user_req = (struct cpt_request_info *)req;
 438
 439         if (unlikely(pqueue->pending_count >= DEFAULT_CMD_QLEN)) {
 440                 rte_errno = EAGAIN;
 441                 return NULL;
 442         }
 443
 444         fill_cpt_inst(instance, req, cpt_inst_w7);
 445
 446         CPT_LOG_DP_DEBUG("req: %p op: %p ", req, user_req->op);
 447
 448         /* Fill time_out cycles */
 449         user_req->time_out = rte_get_timer_cycles() +
 450                         DEFAULT_COMMAND_TIMEOUT * rte_get_timer_hz();
 451         user_req->extra_time = 0;
 452
 453         /* Default mode of software queue */
 454         mark_cpt_inst(instance);
 455
 456         CPT_LOG_DP_DEBUG("Submitted NB cmd with request: %p "
 457                          "op: %p", user_req, user_req->op);
 458         return req;
 459 }
 460
 461 static __rte_always_inline void * __rte_hot
 462 otx_cpt_enq_single_asym(struct cpt_instance *instance,
 463                         struct rte_crypto_op *op,
 464                         struct pending_queue *pqueue)
 465 {
 466         struct cpt_qp_meta_info *minfo = &instance->meta_info;
 467         struct rte_crypto_asym_op *asym_op = op->asym;
 468         struct asym_op_params params = {0};
 469         struct cpt_asym_sess_misc *sess;
 470         uintptr_t *cop;
 471         void *mdata;
 472         void *req;
 473         int ret;
 474
 475         if (unlikely(rte_mempool_get(minfo->pool, &mdata) < 0)) {
 476                 CPT_LOG_DP_ERR("Could not allocate meta buffer for request");
 477                 rte_errno = ENOMEM;
 478                 return NULL;
 479         }
 480
 481         sess = get_asym_session_private_data(asym_op->session,
 482                                              otx_cryptodev_driver_id);
 483
 484         /* Store phys_addr of the mdata to meta_buf */
 485         params.meta_buf = rte_mempool_virt2iova(mdata);
 486
 487         cop = mdata;
 488         cop[0] = (uintptr_t)mdata;
 489         cop[1] = (uintptr_t)op;
 490         cop[2] = cop[3] = 0ULL;
 491
 492         params.req = RTE_PTR_ADD(cop, 4 * sizeof(uintptr_t));
 493         params.req->op = cop;
 494
 495         /* Adjust meta_buf by crypto_op data  and request_info struct */
 496         params.meta_buf += (4 * sizeof(uintptr_t)) +
 497                            sizeof(struct cpt_request_info);
 498
 499         switch (sess->xfrm_type) {
 500         case RTE_CRYPTO_ASYM_XFORM_MODEX:
 501                 ret = cpt_modex_prep(&params, &sess->mod_ctx);
 502                 if (unlikely(ret))
 503                         goto req_fail;
 504                 break;
 505         case RTE_CRYPTO_ASYM_XFORM_RSA:
 506                 ret = cpt_enqueue_rsa_op(op, &params, sess);
 507                 if (unlikely(ret))
 508                         goto req_fail;
 509                 break;
 510         case RTE_CRYPTO_ASYM_XFORM_ECDSA:
 511                 ret = cpt_enqueue_ecdsa_op(op, &params, sess, otx_fpm_iova);
 512                 if (unlikely(ret))
 513                         goto req_fail;
 514                 break;
 515         case RTE_CRYPTO_ASYM_XFORM_ECPM:
 516                 ret = cpt_ecpm_prep(&asym_op->ecpm, &params,
 517                                     sess->ec_ctx.curveid);
 518                 if (unlikely(ret))
 519                         goto req_fail;
 520                 break;
 521
 522         default:
 523                 op->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 524                 rte_errno = EINVAL;
 525                 goto req_fail;
 526         }
 527
 528         req = otx_cpt_request_enqueue(instance, pqueue, params.req,
 529                                       sess->cpt_inst_w7);
 530         if (unlikely(req == NULL)) {
 531                 CPT_LOG_DP_ERR("Could not enqueue crypto req");
 532                 goto req_fail;
 533         }
 534
 535         return req;
 536
 537 req_fail:
 538         free_op_meta(mdata, minfo->pool);
 539
 540         return NULL;
 541 }
 542
 543 static __rte_always_inline void * __rte_hot
 544 otx_cpt_enq_single_sym(struct cpt_instance *instance,
 545                        struct rte_crypto_op *op,
 546                        struct pending_queue *pqueue)
 547 {
 548         struct cpt_sess_misc *sess;
 549         struct rte_crypto_sym_op *sym_op = op->sym;
 550         struct cpt_request_info *prep_req;
 551         void *mdata = NULL;
 552         int ret = 0;
 553         void *req;
 554         uint64_t cpt_op;
 555
 556         sess = (struct cpt_sess_misc *)
 557                         get_sym_session_private_data(sym_op->session,
 558                                                      otx_cryptodev_driver_id);
 559
 560         cpt_op = sess->cpt_op;
 561
 562         if (likely(cpt_op & CPT_OP_CIPHER_MASK))
 563                 ret = fill_fc_params(op, sess, &instance->meta_info, &mdata,
 564                                      (void **)&prep_req);
 565         else
 566                 ret = fill_digest_params(op, sess, &instance->meta_info,
 567                                          &mdata, (void **)&prep_req);
 568
 569         if (unlikely(ret)) {
 570                 CPT_LOG_DP_ERR("prep cryto req : op %p, cpt_op 0x%x "
 571                                "ret 0x%x", op, (unsigned int)cpt_op, ret);
 572                 return NULL;
 573         }
 574
 575         /* Enqueue prepared instruction to h/w */
 576         req = otx_cpt_request_enqueue(instance, pqueue, prep_req,
 577                                       sess->cpt_inst_w7);
 578         if (unlikely(req == NULL))
 579                 /* Buffer allocated for request preparation need to be freed */
 580                 free_op_meta(mdata, instance->meta_info.pool);
 581
 582         return req;
 583 }
 584
 585 static __rte_always_inline void * __rte_hot
 586 otx_cpt_enq_single_sym_sessless(struct cpt_instance *instance,
 587                                 struct rte_crypto_op *op,
 588                                 struct pending_queue *pend_q)
 589 {
 590         const int driver_id = otx_cryptodev_driver_id;
 591         struct rte_crypto_sym_op *sym_op = op->sym;
 592         struct rte_cryptodev_sym_session *sess;
 593         void *req;
 594         int ret;
 595
 596         /* Create temporary session */
 597         sess = rte_cryptodev_sym_session_create(instance->sess_mp);
 598         if (sess == NULL) {
 599                 rte_errno = ENOMEM;
 600                 return NULL;
 601         }
 602
 603         ret = sym_session_configure(driver_id, sym_op->xform, sess,
 604                                     instance->sess_mp_priv);
 605         if (ret)
 606                 goto sess_put;
 607
 608         sym_op->session = sess;
 609
 610         req = otx_cpt_enq_single_sym(instance, op, pend_q);
 611
 612         if (unlikely(req == NULL))
 613                 goto priv_put;
 614
 615         return req;
 616
 617 priv_put:
 618         sym_session_clear(driver_id, sess);
 619 sess_put:
 620         rte_mempool_put(instance->sess_mp, sess);
 621         return NULL;
 622 }
 623
 624 #define OP_TYPE_SYM             0
 625 #define OP_TYPE_ASYM            1
 626
 627 static __rte_always_inline void *__rte_hot
 628 otx_cpt_enq_single(struct cpt_instance *inst,
 629                    struct rte_crypto_op *op,
 630                    struct pending_queue *pqueue,
 631                    const uint8_t op_type)
 632 {
 633         /* Check for the type */
 634
 635         if (op_type == OP_TYPE_SYM) {
 636                 if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION)
 637                         return otx_cpt_enq_single_sym(inst, op, pqueue);
 638                 else
 639                         return otx_cpt_enq_single_sym_sessless(inst, op,
 640                                                                pqueue);
 641         }
 642
 643         if (op_type == OP_TYPE_ASYM) {
 644                 if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION)
 645                         return otx_cpt_enq_single_asym(inst, op, pqueue);
 646         }
 647
 648         /* Should not reach here */
 649         rte_errno = ENOTSUP;
 650         return NULL;
 651 }
 652
 653 static  __rte_always_inline uint16_t __rte_hot
 654 otx_cpt_pkt_enqueue(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops,
 655                     const uint8_t op_type)
 656 {
 657         struct cpt_instance *instance = (struct cpt_instance *)qptr;
 658         uint16_t count;
 659         void *req;
 660         struct cpt_vf *cptvf = (struct cpt_vf *)instance;
 661         struct pending_queue *pqueue = &cptvf->pqueue;
 662
 663         count = DEFAULT_CMD_QLEN - pqueue->pending_count;
 664         if (nb_ops > count)
 665                 nb_ops = count;
 666
 667         count = 0;
 668         while (likely(count < nb_ops)) {
 669
 670                 /* Enqueue single op */
 671                 req = otx_cpt_enq_single(instance, ops[count], pqueue, op_type);
 672
 673                 if (unlikely(req == NULL))
 674                         break;
 675
 676                 pqueue->req_queue[pqueue->enq_tail] = (uintptr_t)req;
 677                 MOD_INC(pqueue->enq_tail, DEFAULT_CMD_QLEN);
 678                 pqueue->pending_count += 1;
 679                 count++;
 680         }
 681         otx_cpt_ring_dbell(instance, count);
 682         return count;
 683 }
 684
 685 static uint16_t
 686 otx_cpt_enqueue_asym(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops)
 687 {
 688         return otx_cpt_pkt_enqueue(qptr, ops, nb_ops, OP_TYPE_ASYM);
 689 }
 690
 691 static uint16_t
 692 otx_cpt_enqueue_sym(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops)
 693 {
 694         return otx_cpt_pkt_enqueue(qptr, ops, nb_ops, OP_TYPE_SYM);
 695 }
 696
 697 static __rte_always_inline void
 698 submit_request_to_sso(struct ssows *ws, uintptr_t req,
 699                       struct rte_event *rsp_info)
 700 {
 701         uint64_t add_work;
 702
 703         add_work = rsp_info->flow_id | (RTE_EVENT_TYPE_CRYPTODEV << 28) |
 704                    ((uint64_t)(rsp_info->sched_type) << 32);
 705
 706         if (!rsp_info->sched_type)
 707                 ssows_head_wait(ws);
 708
 709         rte_atomic_thread_fence(__ATOMIC_RELEASE);
 710         ssovf_store_pair(add_work, req, ws->grps[rsp_info->queue_id]);
 711 }
 712
 713 static inline union rte_event_crypto_metadata *
 714 get_event_crypto_mdata(struct rte_crypto_op *op)
 715 {
 716         union rte_event_crypto_metadata *ec_mdata;
 717
 718         if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION)
 719                 ec_mdata = rte_cryptodev_sym_session_get_user_data(
 720                                                            op->sym->session);
 721         else if (op->sess_type == RTE_CRYPTO_OP_SESSIONLESS &&
 722                  op->private_data_offset)
 723                 ec_mdata = (union rte_event_crypto_metadata *)
 724                         ((uint8_t *)op + op->private_data_offset);
 725         else
 726                 return NULL;
 727
 728         return ec_mdata;
 729 }
 730
 731 uint16_t __rte_hot
 732 otx_crypto_adapter_enqueue(void *port, struct rte_crypto_op *op)
 733 {
 734         union rte_event_crypto_metadata *ec_mdata;
 735         struct cpt_instance *instance;
 736         struct cpt_request_info *req;
 737         struct rte_event *rsp_info;
 738         uint8_t op_type, cdev_id;
 739         uint16_t qp_id;
 740
 741         ec_mdata = get_event_crypto_mdata(op);
 742         if (unlikely(ec_mdata == NULL)) {
 743                 rte_errno = EINVAL;
 744                 return 0;
 745         }
 746
 747         cdev_id = ec_mdata->request_info.cdev_id;
 748         qp_id = ec_mdata->request_info.queue_pair_id;
 749         rsp_info = &ec_mdata->response_info;
 750         instance = rte_cryptodevs[cdev_id].data->queue_pairs[qp_id];
 751
 752         if (unlikely(!instance->ca_enabled)) {
 753                 rte_errno = EINVAL;
 754                 return 0;
 755         }
 756
 757         op_type = op->type == RTE_CRYPTO_OP_TYPE_SYMMETRIC ? OP_TYPE_SYM :
 758                                                              OP_TYPE_ASYM;
 759         req = otx_cpt_enq_single(instance, op,
 760                                  &((struct cpt_vf *)instance)->pqueue, op_type);
 761         if (unlikely(req == NULL))
 762                 return 0;
 763
 764         otx_cpt_ring_dbell(instance, 1);
 765         req->qp = instance;
 766         submit_request_to_sso(port, (uintptr_t)req, rsp_info);
 767
 768         return 1;
 769 }
 770
 771 static inline void
 772 otx_cpt_asym_rsa_op(struct rte_crypto_op *cop, struct cpt_request_info *req,
 773                     struct rte_crypto_rsa_xform *rsa_ctx)
 774
 775 {
 776         struct rte_crypto_rsa_op_param *rsa = &cop->asym->rsa;
 777
 778         switch (rsa->op_type) {
 779         case RTE_CRYPTO_ASYM_OP_ENCRYPT:
 780                 rsa->cipher.length = rsa_ctx->n.length;
 781                 memcpy(rsa->cipher.data, req->rptr, rsa->cipher.length);
 782                 break;
 783         case RTE_CRYPTO_ASYM_OP_DECRYPT:
 784                 if (rsa->pad == RTE_CRYPTO_RSA_PADDING_NONE)
 785                         rsa->message.length = rsa_ctx->n.length;
 786                 else {
 787                         /* Get length of decrypted output */
 788                         rsa->message.length = rte_cpu_to_be_16
 789                                         (*((uint16_t *)req->rptr));
 790
 791                         /* Offset data pointer by length fields */
 792                         req->rptr += 2;
 793                 }
 794                 memcpy(rsa->message.data, req->rptr, rsa->message.length);
 795                 break;
 796         case RTE_CRYPTO_ASYM_OP_SIGN:
 797                 rsa->sign.length = rsa_ctx->n.length;
 798                 memcpy(rsa->sign.data, req->rptr, rsa->sign.length);
 799                 break;
 800         case RTE_CRYPTO_ASYM_OP_VERIFY:
 801                 if (rsa->pad == RTE_CRYPTO_RSA_PADDING_NONE)
 802                         rsa->sign.length = rsa_ctx->n.length;
 803                 else {
 804                         /* Get length of decrypted output */
 805                         rsa->sign.length = rte_cpu_to_be_16
 806                                         (*((uint16_t *)req->rptr));
 807
 808                         /* Offset data pointer by length fields */
 809                         req->rptr += 2;
 810                 }
 811                 memcpy(rsa->sign.data, req->rptr, rsa->sign.length);
 812
 813                 if (memcmp(rsa->sign.data, rsa->message.data,
 814                            rsa->message.length)) {
 815                         CPT_LOG_DP_ERR("RSA verification failed");
 816                         cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
 817                 }
 818                 break;
 819         default:
 820                 CPT_LOG_DP_DEBUG("Invalid RSA operation type");
 821                 cop->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 822                 break;
 823         }
 824 }
 825
 826 static __rte_always_inline void
 827 otx_cpt_asym_dequeue_ecdsa_op(struct rte_crypto_ecdsa_op_param *ecdsa,
 828                             struct cpt_request_info *req,
 829                             struct cpt_asym_ec_ctx *ec)
 830
 831 {
 832         int prime_len = ec_grp[ec->curveid].prime.length;
 833
 834         if (ecdsa->op_type == RTE_CRYPTO_ASYM_OP_VERIFY)
 835                 return;
 836
 837         /* Separate out sign r and s components */
 838         memcpy(ecdsa->r.data, req->rptr, prime_len);
 839         memcpy(ecdsa->s.data, req->rptr + RTE_ALIGN_CEIL(prime_len, 8),
 840                prime_len);
 841         ecdsa->r.length = prime_len;
 842         ecdsa->s.length = prime_len;
 843 }
 844
 845 static __rte_always_inline void
 846 otx_cpt_asym_dequeue_ecpm_op(struct rte_crypto_ecpm_op_param *ecpm,
 847                              struct cpt_request_info *req,
 848                              struct cpt_asym_ec_ctx *ec)
 849 {
 850         int prime_len = ec_grp[ec->curveid].prime.length;
 851
 852         memcpy(ecpm->r.x.data, req->rptr, prime_len);
 853         memcpy(ecpm->r.y.data, req->rptr + RTE_ALIGN_CEIL(prime_len, 8),
 854                prime_len);
 855         ecpm->r.x.length = prime_len;
 856         ecpm->r.y.length = prime_len;
 857 }
 858
 859 static __rte_always_inline void __rte_hot
 860 otx_cpt_asym_post_process(struct rte_crypto_op *cop,
 861                           struct cpt_request_info *req)
 862 {
 863         struct rte_crypto_asym_op *op = cop->asym;
 864         struct cpt_asym_sess_misc *sess;
 865
 866         sess = get_asym_session_private_data(op->session,
 867                                              otx_cryptodev_driver_id);
 868
 869         switch (sess->xfrm_type) {
 870         case RTE_CRYPTO_ASYM_XFORM_RSA:
 871                 otx_cpt_asym_rsa_op(cop, req, &sess->rsa_ctx);
 872                 break;
 873         case RTE_CRYPTO_ASYM_XFORM_MODEX:
 874                 op->modex.result.length = sess->mod_ctx.modulus.length;
 875                 memcpy(op->modex.result.data, req->rptr,
 876                        op->modex.result.length);
 877                 break;
 878         case RTE_CRYPTO_ASYM_XFORM_ECDSA:
 879                 otx_cpt_asym_dequeue_ecdsa_op(&op->ecdsa, req, &sess->ec_ctx);
 880                 break;
 881         case RTE_CRYPTO_ASYM_XFORM_ECPM:
 882                 otx_cpt_asym_dequeue_ecpm_op(&op->ecpm, req, &sess->ec_ctx);
 883                 break;
 884         default:
 885                 CPT_LOG_DP_DEBUG("Invalid crypto xform type");
 886                 cop->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 887                 break;
 888         }
 889 }
 890
 891 static __rte_always_inline void __rte_hot
 892 otx_cpt_dequeue_post_process(struct rte_crypto_op *cop, uintptr_t *rsp,
 893                              const uint8_t op_type)
 894 {
 895         /* H/w has returned success */
 896         cop->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
 897
 898         /* Perform further post processing */
 899
 900         if ((op_type == OP_TYPE_SYM) &&
 901             (cop->type == RTE_CRYPTO_OP_TYPE_SYMMETRIC)) {
 902                 /* Check if auth verify need to be completed */
 903                 if (unlikely(rsp[2]))
 904                         compl_auth_verify(cop, (uint8_t *)rsp[2], rsp[3]);
 905                 return;
 906         }
 907
 908         if ((op_type == OP_TYPE_ASYM) &&
 909             (cop->type == RTE_CRYPTO_OP_TYPE_ASYMMETRIC)) {
 910                 rsp = RTE_PTR_ADD(rsp, 4 * sizeof(uintptr_t));
 911                 otx_cpt_asym_post_process(cop, (struct cpt_request_info *)rsp);
 912         }
 913
 914         return;
 915 }
 916
 917 static inline void
 918 free_sym_session_data(const struct cpt_instance *instance,
 919                       struct rte_crypto_op *cop)
 920 {
 921         void *sess_private_data_t = get_sym_session_private_data(
 922                 cop->sym->session, otx_cryptodev_driver_id);
 923         memset(sess_private_data_t, 0, cpt_get_session_size());
 924         memset(cop->sym->session, 0,
 925                rte_cryptodev_sym_get_existing_header_session_size(
 926                        cop->sym->session));
 927         rte_mempool_put(instance->sess_mp_priv, sess_private_data_t);
 928         rte_mempool_put(instance->sess_mp, cop->sym->session);
 929         cop->sym->session = NULL;
 930 }
 931
 932 static __rte_always_inline struct rte_crypto_op *
 933 otx_cpt_process_response(const struct cpt_instance *instance, uintptr_t *rsp,
 934                          uint8_t cc, const uint8_t op_type)
 935 {
 936         struct rte_crypto_op *cop;
 937         void *metabuf;
 938
 939         metabuf = (void *)rsp[0];
 940         cop = (void *)rsp[1];
 941
 942         /* Check completion code */
 943         if (likely(cc == 0)) {
 944                 /* H/w success pkt. Post process */
 945                 otx_cpt_dequeue_post_process(cop, rsp, op_type);
 946         } else if (cc == ERR_GC_ICV_MISCOMPARE) {
 947                 /* auth data mismatch */
 948                 cop->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
 949         } else {
 950                 /* Error */
 951                 cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
 952         }
 953
 954         if (unlikely(cop->sess_type == RTE_CRYPTO_OP_SESSIONLESS))
 955                 free_sym_session_data(instance, cop);
 956         free_op_meta(metabuf, instance->meta_info.pool);
 957
 958         return cop;
 959 }
 960
 961 static __rte_always_inline uint16_t __rte_hot
 962 otx_cpt_pkt_dequeue(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops,
 963                     const uint8_t op_type)
 964 {
 965         struct cpt_instance *instance = (struct cpt_instance *)qptr;
 966         struct cpt_request_info *user_req;
 967         struct cpt_vf *cptvf = (struct cpt_vf *)instance;
 968         uint8_t cc[nb_ops];
 969         int i, count, pcount;
 970         uint8_t ret;
 971         int nb_completed;
 972         struct pending_queue *pqueue = &cptvf->pqueue;
 973
 974         pcount = pqueue->pending_count;
 975         count = (nb_ops > pcount) ? pcount : nb_ops;
 976
 977         for (i = 0; i < count; i++) {
 978                 user_req = (struct cpt_request_info *)
 979                                 pqueue->req_queue[pqueue->deq_head];
 980
 981                 if (likely((i+1) < count)) {
 982                         rte_prefetch_non_temporal(
 983                                 (void *)pqueue->req_queue[i+1]);
 984                 }
 985
 986                 ret = check_nb_command_id(user_req, instance);
 987
 988                 if (unlikely(ret == ERR_REQ_PENDING)) {
 989                         /* Stop checking for completions */
 990                         break;
 991                 }
 992
 993                 /* Return completion code and op handle */
 994                 cc[i] = ret;
 995                 ops[i] = user_req->op;
 996
 997                 CPT_LOG_DP_DEBUG("Request %p Op %p completed with code %d",
 998                                  user_req, user_req->op, ret);
 999
1000                 MOD_INC(pqueue->deq_head, DEFAULT_CMD_QLEN);
1001                 pqueue->pending_count -= 1;
1002         }
1003
1004         nb_completed = i;
1005
1006         for (i = 0; i < nb_completed; i++) {
1007                 if (likely((i + 1) < nb_completed))
1008                         rte_prefetch0(ops[i+1]);
1009
1010                 ops[i] = otx_cpt_process_response(instance, (void *)ops[i],
1011                                                   cc[i], op_type);
1012         }
1013
1014         return nb_completed;
1015 }
1016
1017 static uint16_t
1018 otx_cpt_dequeue_asym(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops)
1019 {
1020         return otx_cpt_pkt_dequeue(qptr, ops, nb_ops, OP_TYPE_ASYM);
1021 }
1022
1023 static uint16_t
1024 otx_cpt_dequeue_sym(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops)
1025 {
1026         return otx_cpt_pkt_dequeue(qptr, ops, nb_ops, OP_TYPE_SYM);
1027 }
1028
1029 uintptr_t __rte_hot
1030 otx_crypto_adapter_dequeue(uintptr_t get_work1)
1031 {
1032         const struct cpt_instance *instance;
1033         struct cpt_request_info *req;
1034         struct rte_crypto_op *cop;
1035         uint8_t cc, op_type;
1036         uintptr_t *rsp;
1037
1038         req = (struct cpt_request_info *)get_work1;
1039         instance = req->qp;
1040         rsp = req->op;
1041         cop = (void *)rsp[1];
1042         op_type = cop->type == RTE_CRYPTO_OP_TYPE_SYMMETRIC ? OP_TYPE_SYM :
1043                                                               OP_TYPE_ASYM;
1044
1045         do {
1046                 cc = check_nb_command_id(
1047                         req, (struct cpt_instance *)(uintptr_t)instance);
1048         } while (cc == ERR_REQ_PENDING);
1049
1050         cop = otx_cpt_process_response(instance, (void *)req->op, cc, op_type);
1051
1052         return (uintptr_t)(cop);
1053 }
1054
1055 static struct rte_cryptodev_ops cptvf_ops = {
1056         /* Device related operations */
1057         .dev_configure = otx_cpt_dev_config,
1058         .dev_start = otx_cpt_dev_start,
1059         .dev_stop = otx_cpt_dev_stop,
1060         .dev_close = otx_cpt_dev_close,
1061         .dev_infos_get = otx_cpt_dev_info_get,
1062
1063         .stats_get = NULL,
1064         .stats_reset = NULL,
1065         .queue_pair_setup = otx_cpt_que_pair_setup,
1066         .queue_pair_release = otx_cpt_que_pair_release,
1067
1068         /* Crypto related operations */
1069         .sym_session_get_size = otx_cpt_get_session_size,
1070         .sym_session_configure = otx_cpt_session_cfg,
1071         .sym_session_clear = otx_cpt_session_clear,
1072
1073         .asym_session_get_size = otx_cpt_asym_session_size_get,
1074         .asym_session_configure = otx_cpt_asym_session_cfg,
1075         .asym_session_clear = otx_cpt_asym_session_clear,
1076 };
1077
1078 int
1079 otx_cpt_dev_create(struct rte_cryptodev *c_dev)
1080 {
1081         struct rte_pci_device *pdev = RTE_DEV_TO_PCI(c_dev->device);
1082         struct cpt_vf *cptvf = NULL;
1083         void *reg_base;
1084         char dev_name[32];
1085         int ret;
1086
1087         if (pdev->mem_resource[0].phys_addr == 0ULL)
1088                 return -EIO;
1089
1090         /* for secondary processes, we don't initialise any further as primary
1091          * has already done this work.
1092          */
1093         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
1094                 return 0;
1095
1096         cptvf = rte_zmalloc_socket("otx_cryptodev_private_mem",
1097                         sizeof(struct cpt_vf), RTE_CACHE_LINE_SIZE,
1098                         rte_socket_id());
1099
1100         if (cptvf == NULL) {
1101                 CPT_LOG_ERR("Cannot allocate memory for device private data");
1102                 return -ENOMEM;
1103         }
1104
1105         snprintf(dev_name, 32, "%02x:%02x.%x",
1106                         pdev->addr.bus, pdev->addr.devid, pdev->addr.function);
1107
1108         reg_base = pdev->mem_resource[0].addr;
1109         if (!reg_base) {
1110                 CPT_LOG_ERR("Failed to map BAR0 of %s", dev_name);
1111                 ret = -ENODEV;
1112                 goto fail;
1113         }
1114
1115         ret = otx_cpt_hw_init(cptvf, pdev, reg_base, dev_name);
1116         if (ret) {
1117                 CPT_LOG_ERR("Failed to init cptvf %s", dev_name);
1118                 ret = -EIO;
1119                 goto fail;
1120         }
1121
1122         switch (cptvf->vftype) {
1123         case OTX_CPT_VF_TYPE_AE:
1124                 /* Set asymmetric cpt feature flags */
1125                 c_dev->feature_flags = RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO |
1126                                 RTE_CRYPTODEV_FF_HW_ACCELERATED |
1127                                 RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_QT;
1128                 break;
1129         case OTX_CPT_VF_TYPE_SE:
1130                 /* Set symmetric cpt feature flags */
1131                 c_dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
1132                                 RTE_CRYPTODEV_FF_HW_ACCELERATED |
1133                                 RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
1134                                 RTE_CRYPTODEV_FF_IN_PLACE_SGL |
1135                                 RTE_CRYPTODEV_FF_OOP_LB_IN_LB_OUT |
1136                                 RTE_CRYPTODEV_FF_OOP_SGL_IN_LB_OUT |
1137                                 RTE_CRYPTODEV_FF_OOP_SGL_IN_SGL_OUT |
1138                                 RTE_CRYPTODEV_FF_SYM_SESSIONLESS |
1139                                 RTE_CRYPTODEV_FF_DIGEST_ENCRYPTED;
1140                 break;
1141         default:
1142                 /* Feature not supported. Abort */
1143                 CPT_LOG_ERR("VF type not supported by %s", dev_name);
1144                 ret = -EIO;
1145                 goto deinit_dev;
1146         }
1147
1148         /* Start off timer for mailbox interrupts */
1149         otx_cpt_periodic_alarm_start(cptvf);
1150
1151         c_dev->dev_ops = &cptvf_ops;
1152
1153         if (c_dev->feature_flags & RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO) {
1154                 c_dev->enqueue_burst = otx_cpt_enqueue_sym;
1155                 c_dev->dequeue_burst = otx_cpt_dequeue_sym;
1156         } else {
1157                 c_dev->enqueue_burst = otx_cpt_enqueue_asym;
1158                 c_dev->dequeue_burst = otx_cpt_dequeue_asym;
1159         }
1160
1161         /* Save dev private data */
1162         c_dev->data->dev_private = cptvf;
1163
1164         return 0;
1165
1166 deinit_dev:
1167         otx_cpt_deinit_device(cptvf);
1168
1169 fail:
1170         if (cptvf) {
1171                 /* Free private data allocated */
1172                 rte_free(cptvf);
1173         }
1174
1175         return ret;
1176 }