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         rte_free(ctx->auth_key);
 339
 340         memset(priv, 0, cpt_get_session_size());
 341
 342         pool = rte_mempool_from_obj(priv);
 343
 344         set_sym_session_private_data(sess, driver_id, NULL);
 345
 346         rte_mempool_put(pool, priv);
 347 }
 348
 349 static int
 350 otx_cpt_session_cfg(struct rte_cryptodev *dev,
 351                     struct rte_crypto_sym_xform *xform,
 352                     struct rte_cryptodev_sym_session *sess,
 353                     struct rte_mempool *pool)
 354 {
 355         CPT_PMD_INIT_FUNC_TRACE();
 356
 357         return sym_session_configure(dev->driver_id, xform, sess, pool);
 358 }
 359
 360
 361 static void
 362 otx_cpt_session_clear(struct rte_cryptodev *dev,
 363                   struct rte_cryptodev_sym_session *sess)
 364 {
 365         CPT_PMD_INIT_FUNC_TRACE();
 366
 367         return sym_session_clear(dev->driver_id, sess);
 368 }
 369
 370 static unsigned int
 371 otx_cpt_asym_session_size_get(struct rte_cryptodev *dev __rte_unused)
 372 {
 373         return sizeof(struct cpt_asym_sess_misc);
 374 }
 375
 376 static int
 377 otx_cpt_asym_session_cfg(struct rte_cryptodev *dev,
 378                          struct rte_crypto_asym_xform *xform __rte_unused,
 379                          struct rte_cryptodev_asym_session *sess,
 380                          struct rte_mempool *pool)
 381 {
 382         struct cpt_asym_sess_misc *priv;
 383         int ret;
 384
 385         CPT_PMD_INIT_FUNC_TRACE();
 386
 387         if (rte_mempool_get(pool, (void **)&priv)) {
 388                 CPT_LOG_ERR("Could not allocate session private data");
 389                 return -ENOMEM;
 390         }
 391
 392         memset(priv, 0, sizeof(struct cpt_asym_sess_misc));
 393
 394         ret = cpt_fill_asym_session_parameters(priv, xform);
 395         if (ret) {
 396                 CPT_LOG_ERR("Could not configure session parameters");
 397
 398                 /* Return session to mempool */
 399                 rte_mempool_put(pool, priv);
 400                 return ret;
 401         }
 402
 403         priv->cpt_inst_w7 = 0;
 404
 405         set_asym_session_private_data(sess, dev->driver_id, priv);
 406         return 0;
 407 }
 408
 409 static void
 410 otx_cpt_asym_session_clear(struct rte_cryptodev *dev,
 411                            struct rte_cryptodev_asym_session *sess)
 412 {
 413         struct cpt_asym_sess_misc *priv;
 414         struct rte_mempool *sess_mp;
 415
 416         CPT_PMD_INIT_FUNC_TRACE();
 417
 418         priv = get_asym_session_private_data(sess, dev->driver_id);
 419
 420         if (priv == NULL)
 421                 return;
 422
 423         /* Free resources allocated during session configure */
 424         cpt_free_asym_session_parameters(priv);
 425         memset(priv, 0, otx_cpt_asym_session_size_get(dev));
 426         sess_mp = rte_mempool_from_obj(priv);
 427         set_asym_session_private_data(sess, dev->driver_id, NULL);
 428         rte_mempool_put(sess_mp, priv);
 429 }
 430
 431 static __rte_always_inline void * __rte_hot
 432 otx_cpt_request_enqueue(struct cpt_instance *instance,
 433                         void *req, uint64_t cpt_inst_w7)
 434 {
 435         struct cpt_request_info *user_req = (struct cpt_request_info *)req;
 436
 437         fill_cpt_inst(instance, req, cpt_inst_w7);
 438
 439         CPT_LOG_DP_DEBUG("req: %p op: %p ", req, user_req->op);
 440
 441         /* Fill time_out cycles */
 442         user_req->time_out = rte_get_timer_cycles() +
 443                         DEFAULT_COMMAND_TIMEOUT * rte_get_timer_hz();
 444         user_req->extra_time = 0;
 445
 446         /* Default mode of software queue */
 447         mark_cpt_inst(instance);
 448
 449         CPT_LOG_DP_DEBUG("Submitted NB cmd with request: %p "
 450                          "op: %p", user_req, user_req->op);
 451         return req;
 452 }
 453
 454 static __rte_always_inline void * __rte_hot
 455 otx_cpt_enq_single_asym(struct cpt_instance *instance,
 456                         struct rte_crypto_op *op)
 457 {
 458         struct cpt_qp_meta_info *minfo = &instance->meta_info;
 459         struct rte_crypto_asym_op *asym_op = op->asym;
 460         struct asym_op_params params = {0};
 461         struct cpt_asym_sess_misc *sess;
 462         uintptr_t *cop;
 463         void *mdata;
 464         void *req;
 465         int ret;
 466
 467         if (unlikely(rte_mempool_get(minfo->pool, &mdata) < 0)) {
 468                 CPT_LOG_DP_ERR("Could not allocate meta buffer for request");
 469                 rte_errno = ENOMEM;
 470                 return NULL;
 471         }
 472
 473         sess = get_asym_session_private_data(asym_op->session,
 474                                              otx_cryptodev_driver_id);
 475
 476         /* Store phys_addr of the mdata to meta_buf */
 477         params.meta_buf = rte_mempool_virt2iova(mdata);
 478
 479         cop = mdata;
 480         cop[0] = (uintptr_t)mdata;
 481         cop[1] = (uintptr_t)op;
 482         cop[2] = cop[3] = 0ULL;
 483
 484         params.req = RTE_PTR_ADD(cop, 4 * sizeof(uintptr_t));
 485         params.req->op = cop;
 486
 487         /* Adjust meta_buf by crypto_op data  and request_info struct */
 488         params.meta_buf += (4 * sizeof(uintptr_t)) +
 489                            sizeof(struct cpt_request_info);
 490
 491         switch (sess->xfrm_type) {
 492         case RTE_CRYPTO_ASYM_XFORM_MODEX:
 493                 ret = cpt_modex_prep(&params, &sess->mod_ctx);
 494                 if (unlikely(ret))
 495                         goto req_fail;
 496                 break;
 497         case RTE_CRYPTO_ASYM_XFORM_RSA:
 498                 ret = cpt_enqueue_rsa_op(op, &params, sess);
 499                 if (unlikely(ret))
 500                         goto req_fail;
 501                 break;
 502         case RTE_CRYPTO_ASYM_XFORM_ECDSA:
 503                 ret = cpt_enqueue_ecdsa_op(op, &params, sess, otx_fpm_iova);
 504                 if (unlikely(ret))
 505                         goto req_fail;
 506                 break;
 507         case RTE_CRYPTO_ASYM_XFORM_ECPM:
 508                 ret = cpt_ecpm_prep(&asym_op->ecpm, &params,
 509                                     sess->ec_ctx.curveid);
 510                 if (unlikely(ret))
 511                         goto req_fail;
 512                 break;
 513
 514         default:
 515                 op->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 516                 rte_errno = EINVAL;
 517                 goto req_fail;
 518         }
 519
 520         req = otx_cpt_request_enqueue(instance, params.req, sess->cpt_inst_w7);
 521         if (unlikely(req == NULL)) {
 522                 CPT_LOG_DP_ERR("Could not enqueue crypto req");
 523                 goto req_fail;
 524         }
 525
 526         return req;
 527
 528 req_fail:
 529         free_op_meta(mdata, minfo->pool);
 530
 531         return NULL;
 532 }
 533
 534 static __rte_always_inline void * __rte_hot
 535 otx_cpt_enq_single_sym(struct cpt_instance *instance,
 536                        struct rte_crypto_op *op)
 537 {
 538         struct cpt_sess_misc *sess;
 539         struct rte_crypto_sym_op *sym_op = op->sym;
 540         struct cpt_request_info *prep_req;
 541         void *mdata = NULL;
 542         int ret = 0;
 543         void *req;
 544         uint64_t cpt_op;
 545
 546         sess = (struct cpt_sess_misc *)
 547                         get_sym_session_private_data(sym_op->session,
 548                                                      otx_cryptodev_driver_id);
 549
 550         cpt_op = sess->cpt_op;
 551
 552         if (likely(cpt_op & CPT_OP_CIPHER_MASK))
 553                 ret = fill_fc_params(op, sess, &instance->meta_info, &mdata,
 554                                      (void **)&prep_req);
 555         else
 556                 ret = fill_digest_params(op, sess, &instance->meta_info,
 557                                          &mdata, (void **)&prep_req);
 558
 559         if (unlikely(ret)) {
 560                 CPT_LOG_DP_ERR("prep crypto req : op %p, cpt_op 0x%x "
 561                                "ret 0x%x", op, (unsigned int)cpt_op, ret);
 562                 return NULL;
 563         }
 564
 565         /* Enqueue prepared instruction to h/w */
 566         req = otx_cpt_request_enqueue(instance, prep_req, sess->cpt_inst_w7);
 567         if (unlikely(req == NULL))
 568                 /* Buffer allocated for request preparation need to be freed */
 569                 free_op_meta(mdata, instance->meta_info.pool);
 570
 571         return req;
 572 }
 573
 574 static __rte_always_inline void * __rte_hot
 575 otx_cpt_enq_single_sym_sessless(struct cpt_instance *instance,
 576                                 struct rte_crypto_op *op)
 577 {
 578         const int driver_id = otx_cryptodev_driver_id;
 579         struct rte_crypto_sym_op *sym_op = op->sym;
 580         struct rte_cryptodev_sym_session *sess;
 581         void *req;
 582         int ret;
 583
 584         /* Create temporary session */
 585         sess = rte_cryptodev_sym_session_create(instance->sess_mp);
 586         if (sess == NULL) {
 587                 rte_errno = ENOMEM;
 588                 return NULL;
 589         }
 590
 591         ret = sym_session_configure(driver_id, sym_op->xform, sess,
 592                                     instance->sess_mp_priv);
 593         if (ret)
 594                 goto sess_put;
 595
 596         sym_op->session = sess;
 597
 598         /* Enqueue op with the tmp session set */
 599         req = otx_cpt_enq_single_sym(instance, op);
 600         if (unlikely(req == NULL))
 601                 goto priv_put;
 602
 603         return req;
 604
 605 priv_put:
 606         sym_session_clear(driver_id, sess);
 607 sess_put:
 608         rte_mempool_put(instance->sess_mp, sess);
 609         return NULL;
 610 }
 611
 612 #define OP_TYPE_SYM             0
 613 #define OP_TYPE_ASYM            1
 614
 615 static __rte_always_inline void *__rte_hot
 616 otx_cpt_enq_single(struct cpt_instance *inst,
 617                    struct rte_crypto_op *op,
 618                    const uint8_t op_type)
 619 {
 620         /* Check for the type */
 621
 622         if (op_type == OP_TYPE_SYM) {
 623                 if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION)
 624                         return otx_cpt_enq_single_sym(inst, op);
 625                 else
 626                         return otx_cpt_enq_single_sym_sessless(inst, op);
 627         }
 628
 629         if (op_type == OP_TYPE_ASYM) {
 630                 if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION)
 631                         return otx_cpt_enq_single_asym(inst, op);
 632         }
 633
 634         /* Should not reach here */
 635         rte_errno = ENOTSUP;
 636         return NULL;
 637 }
 638
 639 static  __rte_always_inline uint16_t __rte_hot
 640 otx_cpt_pkt_enqueue(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops,
 641                     const uint8_t op_type)
 642 {
 643         struct cpt_instance *instance = (struct cpt_instance *)qptr;
 644         uint16_t count, free_slots;
 645         void *req;
 646         struct cpt_vf *cptvf = (struct cpt_vf *)instance;
 647         struct pending_queue *pqueue = &cptvf->pqueue;
 648
 649         free_slots = pending_queue_free_slots(pqueue, DEFAULT_CMD_QLEN,
 650                                 DEFAULT_CMD_QRSVD_SLOTS);
 651         if (nb_ops > free_slots)
 652                 nb_ops = free_slots;
 653
 654         count = 0;
 655         while (likely(count < nb_ops)) {
 656
 657                 /* Enqueue single op */
 658                 req = otx_cpt_enq_single(instance, ops[count], op_type);
 659
 660                 if (unlikely(req == NULL))
 661                         break;
 662
 663                 pending_queue_push(pqueue, req, count, DEFAULT_CMD_QLEN);
 664                 count++;
 665         }
 666
 667         if (likely(count)) {
 668                 pending_queue_commit(pqueue, count, DEFAULT_CMD_QLEN);
 669                 otx_cpt_ring_dbell(instance, count);
 670         }
 671         return count;
 672 }
 673
 674 static uint16_t
 675 otx_cpt_enqueue_asym(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops)
 676 {
 677         return otx_cpt_pkt_enqueue(qptr, ops, nb_ops, OP_TYPE_ASYM);
 678 }
 679
 680 static uint16_t
 681 otx_cpt_enqueue_sym(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops)
 682 {
 683         return otx_cpt_pkt_enqueue(qptr, ops, nb_ops, OP_TYPE_SYM);
 684 }
 685
 686 static __rte_always_inline void
 687 submit_request_to_sso(struct ssows *ws, uintptr_t req,
 688                       struct rte_event *rsp_info)
 689 {
 690         uint64_t add_work;
 691
 692         add_work = rsp_info->flow_id | (RTE_EVENT_TYPE_CRYPTODEV << 28) |
 693                    ((uint64_t)(rsp_info->sched_type) << 32);
 694
 695         if (!rsp_info->sched_type)
 696                 ssows_head_wait(ws);
 697
 698         rte_atomic_thread_fence(__ATOMIC_RELEASE);
 699         ssovf_store_pair(add_work, req, ws->grps[rsp_info->queue_id]);
 700 }
 701
 702 static inline union rte_event_crypto_metadata *
 703 get_event_crypto_mdata(struct rte_crypto_op *op)
 704 {
 705         union rte_event_crypto_metadata *ec_mdata;
 706
 707         if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION)
 708                 ec_mdata = rte_cryptodev_sym_session_get_user_data(
 709                                                            op->sym->session);
 710         else if (op->sess_type == RTE_CRYPTO_OP_SESSIONLESS &&
 711                  op->private_data_offset)
 712                 ec_mdata = (union rte_event_crypto_metadata *)
 713                         ((uint8_t *)op + op->private_data_offset);
 714         else
 715                 return NULL;
 716
 717         return ec_mdata;
 718 }
 719
 720 uint16_t __rte_hot
 721 otx_crypto_adapter_enqueue(void *port, struct rte_crypto_op *op)
 722 {
 723         union rte_event_crypto_metadata *ec_mdata;
 724         struct cpt_instance *instance;
 725         struct cpt_request_info *req;
 726         struct rte_event *rsp_info;
 727         uint8_t op_type, cdev_id;
 728         uint16_t qp_id;
 729
 730         ec_mdata = get_event_crypto_mdata(op);
 731         if (unlikely(ec_mdata == NULL)) {
 732                 rte_errno = EINVAL;
 733                 return 0;
 734         }
 735
 736         cdev_id = ec_mdata->request_info.cdev_id;
 737         qp_id = ec_mdata->request_info.queue_pair_id;
 738         rsp_info = &ec_mdata->response_info;
 739         instance = rte_cryptodevs[cdev_id].data->queue_pairs[qp_id];
 740
 741         if (unlikely(!instance->ca_enabled)) {
 742                 rte_errno = EINVAL;
 743                 return 0;
 744         }
 745
 746         op_type = op->type == RTE_CRYPTO_OP_TYPE_SYMMETRIC ? OP_TYPE_SYM :
 747                                                              OP_TYPE_ASYM;
 748         req = otx_cpt_enq_single(instance, op, op_type);
 749         if (unlikely(req == NULL))
 750                 return 0;
 751
 752         otx_cpt_ring_dbell(instance, 1);
 753         req->qp = instance;
 754         submit_request_to_sso(port, (uintptr_t)req, rsp_info);
 755
 756         return 1;
 757 }
 758
 759 static inline void
 760 otx_cpt_asym_rsa_op(struct rte_crypto_op *cop, struct cpt_request_info *req,
 761                     struct rte_crypto_rsa_xform *rsa_ctx)
 762
 763 {
 764         struct rte_crypto_rsa_op_param *rsa = &cop->asym->rsa;
 765
 766         switch (rsa->op_type) {
 767         case RTE_CRYPTO_ASYM_OP_ENCRYPT:
 768                 rsa->cipher.length = rsa_ctx->n.length;
 769                 memcpy(rsa->cipher.data, req->rptr, rsa->cipher.length);
 770                 break;
 771         case RTE_CRYPTO_ASYM_OP_DECRYPT:
 772                 if (rsa->pad == RTE_CRYPTO_RSA_PADDING_NONE)
 773                         rsa->message.length = rsa_ctx->n.length;
 774                 else {
 775                         /* Get length of decrypted output */
 776                         rsa->message.length = rte_cpu_to_be_16
 777                                         (*((uint16_t *)req->rptr));
 778
 779                         /* Offset data pointer by length fields */
 780                         req->rptr += 2;
 781                 }
 782                 memcpy(rsa->message.data, req->rptr, rsa->message.length);
 783                 break;
 784         case RTE_CRYPTO_ASYM_OP_SIGN:
 785                 rsa->sign.length = rsa_ctx->n.length;
 786                 memcpy(rsa->sign.data, req->rptr, rsa->sign.length);
 787                 break;
 788         case RTE_CRYPTO_ASYM_OP_VERIFY:
 789                 if (rsa->pad == RTE_CRYPTO_RSA_PADDING_NONE)
 790                         rsa->sign.length = rsa_ctx->n.length;
 791                 else {
 792                         /* Get length of decrypted output */
 793                         rsa->sign.length = rte_cpu_to_be_16
 794                                         (*((uint16_t *)req->rptr));
 795
 796                         /* Offset data pointer by length fields */
 797                         req->rptr += 2;
 798                 }
 799                 memcpy(rsa->sign.data, req->rptr, rsa->sign.length);
 800
 801                 if (memcmp(rsa->sign.data, rsa->message.data,
 802                            rsa->message.length)) {
 803                         CPT_LOG_DP_ERR("RSA verification failed");
 804                         cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
 805                 }
 806                 break;
 807         default:
 808                 CPT_LOG_DP_DEBUG("Invalid RSA operation type");
 809                 cop->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 810                 break;
 811         }
 812 }
 813
 814 static __rte_always_inline void
 815 otx_cpt_asym_dequeue_ecdsa_op(struct rte_crypto_ecdsa_op_param *ecdsa,
 816                             struct cpt_request_info *req,
 817                             struct cpt_asym_ec_ctx *ec)
 818
 819 {
 820         int prime_len = ec_grp[ec->curveid].prime.length;
 821
 822         if (ecdsa->op_type == RTE_CRYPTO_ASYM_OP_VERIFY)
 823                 return;
 824
 825         /* Separate out sign r and s components */
 826         memcpy(ecdsa->r.data, req->rptr, prime_len);
 827         memcpy(ecdsa->s.data, req->rptr + RTE_ALIGN_CEIL(prime_len, 8),
 828                prime_len);
 829         ecdsa->r.length = prime_len;
 830         ecdsa->s.length = prime_len;
 831 }
 832
 833 static __rte_always_inline void
 834 otx_cpt_asym_dequeue_ecpm_op(struct rte_crypto_ecpm_op_param *ecpm,
 835                              struct cpt_request_info *req,
 836                              struct cpt_asym_ec_ctx *ec)
 837 {
 838         int prime_len = ec_grp[ec->curveid].prime.length;
 839
 840         memcpy(ecpm->r.x.data, req->rptr, prime_len);
 841         memcpy(ecpm->r.y.data, req->rptr + RTE_ALIGN_CEIL(prime_len, 8),
 842                prime_len);
 843         ecpm->r.x.length = prime_len;
 844         ecpm->r.y.length = prime_len;
 845 }
 846
 847 static __rte_always_inline void __rte_hot
 848 otx_cpt_asym_post_process(struct rte_crypto_op *cop,
 849                           struct cpt_request_info *req)
 850 {
 851         struct rte_crypto_asym_op *op = cop->asym;
 852         struct cpt_asym_sess_misc *sess;
 853
 854         sess = get_asym_session_private_data(op->session,
 855                                              otx_cryptodev_driver_id);
 856
 857         switch (sess->xfrm_type) {
 858         case RTE_CRYPTO_ASYM_XFORM_RSA:
 859                 otx_cpt_asym_rsa_op(cop, req, &sess->rsa_ctx);
 860                 break;
 861         case RTE_CRYPTO_ASYM_XFORM_MODEX:
 862                 op->modex.result.length = sess->mod_ctx.modulus.length;
 863                 memcpy(op->modex.result.data, req->rptr,
 864                        op->modex.result.length);
 865                 break;
 866         case RTE_CRYPTO_ASYM_XFORM_ECDSA:
 867                 otx_cpt_asym_dequeue_ecdsa_op(&op->ecdsa, req, &sess->ec_ctx);
 868                 break;
 869         case RTE_CRYPTO_ASYM_XFORM_ECPM:
 870                 otx_cpt_asym_dequeue_ecpm_op(&op->ecpm, req, &sess->ec_ctx);
 871                 break;
 872         default:
 873                 CPT_LOG_DP_DEBUG("Invalid crypto xform type");
 874                 cop->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
 875                 break;
 876         }
 877 }
 878
 879 static __rte_always_inline void __rte_hot
 880 otx_cpt_dequeue_post_process(struct rte_crypto_op *cop, uintptr_t *rsp,
 881                              const uint8_t op_type)
 882 {
 883         /* H/w has returned success */
 884         cop->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
 885
 886         /* Perform further post processing */
 887
 888         if ((op_type == OP_TYPE_SYM) &&
 889             (cop->type == RTE_CRYPTO_OP_TYPE_SYMMETRIC)) {
 890                 /* Check if auth verify need to be completed */
 891                 if (unlikely(rsp[2]))
 892                         compl_auth_verify(cop, (uint8_t *)rsp[2], rsp[3]);
 893                 return;
 894         }
 895
 896         if ((op_type == OP_TYPE_ASYM) &&
 897             (cop->type == RTE_CRYPTO_OP_TYPE_ASYMMETRIC)) {
 898                 rsp = RTE_PTR_ADD(rsp, 4 * sizeof(uintptr_t));
 899                 otx_cpt_asym_post_process(cop, (struct cpt_request_info *)rsp);
 900         }
 901
 902         return;
 903 }
 904
 905 static inline void
 906 free_sym_session_data(const struct cpt_instance *instance,
 907                       struct rte_crypto_op *cop)
 908 {
 909         void *sess_private_data_t = get_sym_session_private_data(
 910                 cop->sym->session, otx_cryptodev_driver_id);
 911         memset(sess_private_data_t, 0, cpt_get_session_size());
 912         memset(cop->sym->session, 0,
 913                rte_cryptodev_sym_get_existing_header_session_size(
 914                        cop->sym->session));
 915         rte_mempool_put(instance->sess_mp_priv, sess_private_data_t);
 916         rte_mempool_put(instance->sess_mp, cop->sym->session);
 917         cop->sym->session = NULL;
 918 }
 919
 920 static __rte_always_inline struct rte_crypto_op *
 921 otx_cpt_process_response(const struct cpt_instance *instance, uintptr_t *rsp,
 922                          uint8_t cc, const uint8_t op_type)
 923 {
 924         struct rte_crypto_op *cop;
 925         void *metabuf;
 926
 927         metabuf = (void *)rsp[0];
 928         cop = (void *)rsp[1];
 929
 930         /* Check completion code */
 931         if (likely(cc == 0)) {
 932                 /* H/w success pkt. Post process */
 933                 otx_cpt_dequeue_post_process(cop, rsp, op_type);
 934         } else if (cc == ERR_GC_ICV_MISCOMPARE) {
 935                 /* auth data mismatch */
 936                 cop->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
 937         } else {
 938                 /* Error */
 939                 cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
 940         }
 941
 942         if (unlikely(cop->sess_type == RTE_CRYPTO_OP_SESSIONLESS))
 943                 free_sym_session_data(instance, cop);
 944         free_op_meta(metabuf, instance->meta_info.pool);
 945
 946         return cop;
 947 }
 948
 949 static __rte_always_inline uint16_t __rte_hot
 950 otx_cpt_pkt_dequeue(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops,
 951                     const uint8_t op_type)
 952 {
 953         struct cpt_instance *instance = (struct cpt_instance *)qptr;
 954         struct cpt_request_info *user_req;
 955         struct cpt_vf *cptvf = (struct cpt_vf *)instance;
 956         uint8_t cc[nb_ops];
 957         int i, count, pcount;
 958         uint8_t ret;
 959         int nb_completed;
 960         struct pending_queue *pqueue = &cptvf->pqueue;
 961
 962         pcount = pending_queue_level(pqueue, DEFAULT_CMD_QLEN);
 963
 964         /* Ensure pcount isn't read before data lands */
 965         rte_atomic_thread_fence(__ATOMIC_ACQUIRE);
 966
 967         count = (nb_ops > pcount) ? pcount : nb_ops;
 968
 969         for (i = 0; i < count; i++) {
 970                 pending_queue_peek(pqueue, (void **) &user_req,
 971                         DEFAULT_CMD_QLEN, i + 1 < count);
 972
 973                 ret = check_nb_command_id(user_req, instance);
 974
 975                 if (unlikely(ret == ERR_REQ_PENDING)) {
 976                         /* Stop checking for completions */
 977                         break;
 978                 }
 979
 980                 /* Return completion code and op handle */
 981                 cc[i] = ret;
 982                 ops[i] = user_req->op;
 983
 984                 CPT_LOG_DP_DEBUG("Request %p Op %p completed with code %d",
 985                                  user_req, user_req->op, ret);
 986
 987                 pending_queue_pop(pqueue, DEFAULT_CMD_QLEN);
 988         }
 989
 990         nb_completed = i;
 991
 992         for (i = 0; i < nb_completed; i++) {
 993                 if (likely((i + 1) < nb_completed))
 994                         rte_prefetch0(ops[i+1]);
 995
 996                 ops[i] = otx_cpt_process_response(instance, (void *)ops[i],
 997                                                   cc[i], op_type);
 998         }
 999
1000         return nb_completed;
1001 }
1002
1003 static uint16_t
1004 otx_cpt_dequeue_asym(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops)
1005 {
1006         return otx_cpt_pkt_dequeue(qptr, ops, nb_ops, OP_TYPE_ASYM);
1007 }
1008
1009 static uint16_t
1010 otx_cpt_dequeue_sym(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops)
1011 {
1012         return otx_cpt_pkt_dequeue(qptr, ops, nb_ops, OP_TYPE_SYM);
1013 }
1014
1015 uintptr_t __rte_hot
1016 otx_crypto_adapter_dequeue(uintptr_t get_work1)
1017 {
1018         const struct cpt_instance *instance;
1019         struct cpt_request_info *req;
1020         struct rte_crypto_op *cop;
1021         uint8_t cc, op_type;
1022         uintptr_t *rsp;
1023
1024         req = (struct cpt_request_info *)get_work1;
1025         instance = req->qp;
1026         rsp = req->op;
1027         cop = (void *)rsp[1];
1028         op_type = cop->type == RTE_CRYPTO_OP_TYPE_SYMMETRIC ? OP_TYPE_SYM :
1029                                                               OP_TYPE_ASYM;
1030
1031         do {
1032                 cc = check_nb_command_id(
1033                         req, (struct cpt_instance *)(uintptr_t)instance);
1034         } while (cc == ERR_REQ_PENDING);
1035
1036         cop = otx_cpt_process_response(instance, (void *)req->op, cc, op_type);
1037
1038         return (uintptr_t)(cop);
1039 }
1040
1041 static struct rte_cryptodev_ops cptvf_ops = {
1042         /* Device related operations */
1043         .dev_configure = otx_cpt_dev_config,
1044         .dev_start = otx_cpt_dev_start,
1045         .dev_stop = otx_cpt_dev_stop,
1046         .dev_close = otx_cpt_dev_close,
1047         .dev_infos_get = otx_cpt_dev_info_get,
1048
1049         .stats_get = NULL,
1050         .stats_reset = NULL,
1051         .queue_pair_setup = otx_cpt_que_pair_setup,
1052         .queue_pair_release = otx_cpt_que_pair_release,
1053
1054         /* Crypto related operations */
1055         .sym_session_get_size = otx_cpt_get_session_size,
1056         .sym_session_configure = otx_cpt_session_cfg,
1057         .sym_session_clear = otx_cpt_session_clear,
1058
1059         .asym_session_get_size = otx_cpt_asym_session_size_get,
1060         .asym_session_configure = otx_cpt_asym_session_cfg,
1061         .asym_session_clear = otx_cpt_asym_session_clear,
1062 };
1063
1064 int
1065 otx_cpt_dev_create(struct rte_cryptodev *c_dev)
1066 {
1067         struct rte_pci_device *pdev = RTE_DEV_TO_PCI(c_dev->device);
1068         struct cpt_vf *cptvf = NULL;
1069         void *reg_base;
1070         char dev_name[32];
1071         int ret;
1072
1073         if (pdev->mem_resource[0].phys_addr == 0ULL)
1074                 return -EIO;
1075
1076         /* for secondary processes, we don't initialise any further as primary
1077          * has already done this work.
1078          */
1079         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
1080                 return 0;
1081
1082         cptvf = rte_zmalloc_socket("otx_cryptodev_private_mem",
1083                         sizeof(struct cpt_vf), RTE_CACHE_LINE_SIZE,
1084                         rte_socket_id());
1085
1086         if (cptvf == NULL) {
1087                 CPT_LOG_ERR("Cannot allocate memory for device private data");
1088                 return -ENOMEM;
1089         }
1090
1091         snprintf(dev_name, 32, "%02x:%02x.%x",
1092                         pdev->addr.bus, pdev->addr.devid, pdev->addr.function);
1093
1094         reg_base = pdev->mem_resource[0].addr;
1095         if (!reg_base) {
1096                 CPT_LOG_ERR("Failed to map BAR0 of %s", dev_name);
1097                 ret = -ENODEV;
1098                 goto fail;
1099         }
1100
1101         ret = otx_cpt_hw_init(cptvf, pdev, reg_base, dev_name);
1102         if (ret) {
1103                 CPT_LOG_ERR("Failed to init cptvf %s", dev_name);
1104                 ret = -EIO;
1105                 goto fail;
1106         }
1107
1108         switch (cptvf->vftype) {
1109         case OTX_CPT_VF_TYPE_AE:
1110                 /* Set asymmetric cpt feature flags */
1111                 c_dev->feature_flags = RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO |
1112                                 RTE_CRYPTODEV_FF_HW_ACCELERATED |
1113                                 RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_QT;
1114                 break;
1115         case OTX_CPT_VF_TYPE_SE:
1116                 /* Set symmetric cpt feature flags */
1117                 c_dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
1118                                 RTE_CRYPTODEV_FF_HW_ACCELERATED |
1119                                 RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
1120                                 RTE_CRYPTODEV_FF_IN_PLACE_SGL |
1121                                 RTE_CRYPTODEV_FF_OOP_LB_IN_LB_OUT |
1122                                 RTE_CRYPTODEV_FF_OOP_SGL_IN_LB_OUT |
1123                                 RTE_CRYPTODEV_FF_OOP_SGL_IN_SGL_OUT |
1124                                 RTE_CRYPTODEV_FF_SYM_SESSIONLESS |
1125                                 RTE_CRYPTODEV_FF_DIGEST_ENCRYPTED;
1126                 break;
1127         default:
1128                 /* Feature not supported. Abort */
1129                 CPT_LOG_ERR("VF type not supported by %s", dev_name);
1130                 ret = -EIO;
1131                 goto deinit_dev;
1132         }
1133
1134         /* Start off timer for mailbox interrupts */
1135         otx_cpt_periodic_alarm_start(cptvf);
1136
1137         c_dev->dev_ops = &cptvf_ops;
1138
1139         if (c_dev->feature_flags & RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO) {
1140                 c_dev->enqueue_burst = otx_cpt_enqueue_sym;
1141                 c_dev->dequeue_burst = otx_cpt_dequeue_sym;
1142         } else {
1143                 c_dev->enqueue_burst = otx_cpt_enqueue_asym;
1144                 c_dev->dequeue_burst = otx_cpt_dequeue_asym;
1145         }
1146
1147         /* Save dev private data */
1148         c_dev->data->dev_private = cptvf;
1149
1150         return 0;
1151
1152 deinit_dev:
1153         otx_cpt_deinit_device(cptvf);
1154
1155 fail:
1156         if (cptvf) {
1157                 /* Free private data allocated */
1158                 rte_free(cptvf);
1159         }
1160
1161         return ret;
1162 }