drivers/crypto/octeontx/otx_cryptodev_ops.c

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