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_malloc.h>
  10
  11 #include "cpt_pmd_logs.h"
  12 #include "cpt_pmd_ops_helper.h"
  13 #include "cpt_ucode.h"
  14
  15 #include "otx_cryptodev.h"
  16 #include "otx_cryptodev_capabilities.h"
  17 #include "otx_cryptodev_hw_access.h"
  18 #include "otx_cryptodev_ops.h"
  19
  20 static int otx_cryptodev_probe_count;
  21 static rte_spinlock_t otx_probe_count_lock = RTE_SPINLOCK_INITIALIZER;
  22
  23 static struct rte_mempool *otx_cpt_meta_pool;
  24 static int otx_cpt_op_mlen;
  25 static int otx_cpt_op_sb_mlen;
  26
  27 /* Forward declarations */
  28
  29 static int
  30 otx_cpt_que_pair_release(struct rte_cryptodev *dev, uint16_t que_pair_id);
  31
  32 /*
  33  * Initializes global variables used by fast-path code
  34  *
  35  * @return
  36  *   - 0 on success, errcode on error
  37  */
  38 static int
  39 init_global_resources(void)
  40 {
  41         /* Get meta len for scatter gather mode */
  42         otx_cpt_op_mlen = cpt_pmd_ops_helper_get_mlen_sg_mode();
  43
  44         /* Extra 4B saved for future considerations */
  45         otx_cpt_op_mlen += 4 * sizeof(uint64_t);
  46
  47         otx_cpt_meta_pool = rte_mempool_create("cpt_metabuf-pool", 4096 * 16,
  48                                                otx_cpt_op_mlen, 512, 0,
  49                                                NULL, NULL, NULL, NULL,
  50                                                SOCKET_ID_ANY, 0);
  51         if (!otx_cpt_meta_pool) {
  52                 CPT_LOG_ERR("cpt metabuf pool not created");
  53                 return -ENOMEM;
  54         }
  55
  56         /* Get meta len for direct mode */
  57         otx_cpt_op_sb_mlen = cpt_pmd_ops_helper_get_mlen_direct_mode();
  58
  59         /* Extra 4B saved for future considerations */
  60         otx_cpt_op_sb_mlen += 4 * sizeof(uint64_t);
  61
  62         return 0;
  63 }
  64
  65 void
  66 cleanup_global_resources(void)
  67 {
  68         /* Take lock */
  69         rte_spinlock_lock(&otx_probe_count_lock);
  70
  71         /* Decrement the cryptodev count */
  72         otx_cryptodev_probe_count--;
  73
  74         /* Free buffers */
  75         if (otx_cpt_meta_pool && otx_cryptodev_probe_count == 0)
  76                 rte_mempool_free(otx_cpt_meta_pool);
  77
  78         /* Free lock */
  79         rte_spinlock_unlock(&otx_probe_count_lock);
  80 }
  81
  82 /* Alarm routines */
  83
  84 static void
  85 otx_cpt_alarm_cb(void *arg)
  86 {
  87         struct cpt_vf *cptvf = arg;
  88         otx_cpt_poll_misc(cptvf);
  89         rte_eal_alarm_set(CPT_INTR_POLL_INTERVAL_MS * 1000,
  90                           otx_cpt_alarm_cb, cptvf);
  91 }
  92
  93 static int
  94 otx_cpt_periodic_alarm_start(void *arg)
  95 {
  96         return rte_eal_alarm_set(CPT_INTR_POLL_INTERVAL_MS * 1000,
  97                                  otx_cpt_alarm_cb, arg);
  98 }
  99
 100 static int
 101 otx_cpt_periodic_alarm_stop(void *arg)
 102 {
 103         return rte_eal_alarm_cancel(otx_cpt_alarm_cb, arg);
 104 }
 105
 106 /* PMD ops */
 107
 108 static int
 109 otx_cpt_dev_config(struct rte_cryptodev *dev __rte_unused,
 110                    struct rte_cryptodev_config *config __rte_unused)
 111 {
 112         CPT_PMD_INIT_FUNC_TRACE();
 113         return 0;
 114 }
 115
 116 static int
 117 otx_cpt_dev_start(struct rte_cryptodev *c_dev)
 118 {
 119         void *cptvf = c_dev->data->dev_private;
 120
 121         CPT_PMD_INIT_FUNC_TRACE();
 122
 123         return otx_cpt_start_device(cptvf);
 124 }
 125
 126 static void
 127 otx_cpt_dev_stop(struct rte_cryptodev *c_dev)
 128 {
 129         void *cptvf = c_dev->data->dev_private;
 130
 131         CPT_PMD_INIT_FUNC_TRACE();
 132
 133         otx_cpt_stop_device(cptvf);
 134 }
 135
 136 static int
 137 otx_cpt_dev_close(struct rte_cryptodev *c_dev)
 138 {
 139         void *cptvf = c_dev->data->dev_private;
 140         int i, ret;
 141
 142         CPT_PMD_INIT_FUNC_TRACE();
 143
 144         for (i = 0; i < c_dev->data->nb_queue_pairs; i++) {
 145                 ret = otx_cpt_que_pair_release(c_dev, i);
 146                 if (ret)
 147                         return ret;
 148         }
 149
 150         otx_cpt_periodic_alarm_stop(cptvf);
 151         otx_cpt_deinit_device(cptvf);
 152
 153         return 0;
 154 }
 155
 156 static void
 157 otx_cpt_dev_info_get(struct rte_cryptodev *dev, struct rte_cryptodev_info *info)
 158 {
 159         CPT_PMD_INIT_FUNC_TRACE();
 160         if (info != NULL) {
 161                 info->max_nb_queue_pairs = CPT_NUM_QS_PER_VF;
 162                 info->feature_flags = dev->feature_flags;
 163                 info->capabilities = otx_get_capabilities();
 164                 info->sym.max_nb_sessions = 0;
 165                 info->driver_id = otx_cryptodev_driver_id;
 166                 info->min_mbuf_headroom_req = OTX_CPT_MIN_HEADROOM_REQ;
 167                 info->min_mbuf_tailroom_req = OTX_CPT_MIN_TAILROOM_REQ;
 168         }
 169 }
 170
 171 static void
 172 otx_cpt_stats_get(struct rte_cryptodev *dev __rte_unused,
 173                   struct rte_cryptodev_stats *stats __rte_unused)
 174 {
 175         CPT_PMD_INIT_FUNC_TRACE();
 176 }
 177
 178 static void
 179 otx_cpt_stats_reset(struct rte_cryptodev *dev __rte_unused)
 180 {
 181         CPT_PMD_INIT_FUNC_TRACE();
 182 }
 183
 184 static int
 185 otx_cpt_que_pair_setup(struct rte_cryptodev *dev,
 186                        uint16_t que_pair_id,
 187                        const struct rte_cryptodev_qp_conf *qp_conf,
 188                        int socket_id __rte_unused)
 189 {
 190         void *cptvf = dev->data->dev_private;
 191         struct cpt_instance *instance = NULL;
 192         struct rte_pci_device *pci_dev;
 193         int ret = -1;
 194
 195         CPT_PMD_INIT_FUNC_TRACE();
 196
 197         if (dev->data->queue_pairs[que_pair_id] != NULL) {
 198                 ret = otx_cpt_que_pair_release(dev, que_pair_id);
 199                 if (ret)
 200                         return ret;
 201         }
 202
 203         if (qp_conf->nb_descriptors > DEFAULT_CMD_QLEN) {
 204                 CPT_LOG_INFO("Number of descriptors too big %d, using default "
 205                              "queue length of %d", qp_conf->nb_descriptors,
 206                              DEFAULT_CMD_QLEN);
 207         }
 208
 209         pci_dev = RTE_DEV_TO_PCI(dev->device);
 210
 211         if (pci_dev->mem_resource[0].addr == NULL) {
 212                 CPT_LOG_ERR("PCI mem address null");
 213                 return -EIO;
 214         }
 215
 216         ret = otx_cpt_get_resource(cptvf, 0, &instance);
 217         if (ret != 0 || instance == NULL) {
 218                 CPT_LOG_ERR("Error getting instance handle from device %s : "
 219                             "ret = %d", dev->data->name, ret);
 220                 return ret;
 221         }
 222
 223         instance->queue_id = que_pair_id;
 224         instance->sess_mp = qp_conf->mp_session;
 225         instance->sess_mp_priv = qp_conf->mp_session_private;
 226         dev->data->queue_pairs[que_pair_id] = instance;
 227
 228         return 0;
 229 }
 230
 231 static int
 232 otx_cpt_que_pair_release(struct rte_cryptodev *dev, uint16_t que_pair_id)
 233 {
 234         struct cpt_instance *instance = dev->data->queue_pairs[que_pair_id];
 235         int ret;
 236
 237         CPT_PMD_INIT_FUNC_TRACE();
 238
 239         ret = otx_cpt_put_resource(instance);
 240         if (ret != 0) {
 241                 CPT_LOG_ERR("Error putting instance handle of device %s : "
 242                             "ret = %d", dev->data->name, ret);
 243                 return ret;
 244         }
 245
 246         dev->data->queue_pairs[que_pair_id] = NULL;
 247
 248         return 0;
 249 }
 250
 251 static unsigned int
 252 otx_cpt_get_session_size(struct rte_cryptodev *dev __rte_unused)
 253 {
 254         return cpt_get_session_size();
 255 }
 256
 257 static void
 258 otx_cpt_session_init(void *sym_sess, uint8_t driver_id)
 259 {
 260         struct rte_cryptodev_sym_session *sess = sym_sess;
 261         struct cpt_sess_misc *cpt_sess =
 262          (struct cpt_sess_misc *) get_sym_session_private_data(sess, driver_id);
 263
 264         CPT_PMD_INIT_FUNC_TRACE();
 265         cpt_sess->ctx_dma_addr = rte_mempool_virt2iova(cpt_sess) +
 266                         sizeof(struct cpt_sess_misc);
 267 }
 268
 269 static int
 270 otx_cpt_session_cfg(struct rte_cryptodev *dev,
 271                     struct rte_crypto_sym_xform *xform,
 272                     struct rte_cryptodev_sym_session *sess,
 273                     struct rte_mempool *mempool)
 274 {
 275         struct rte_crypto_sym_xform *chain;
 276         void *sess_private_data = NULL;
 277
 278         CPT_PMD_INIT_FUNC_TRACE();
 279
 280         if (cpt_is_algo_supported(xform))
 281                 goto err;
 282
 283         if (unlikely(sess == NULL)) {
 284                 CPT_LOG_ERR("invalid session struct");
 285                 return -EINVAL;
 286         }
 287
 288         if (rte_mempool_get(mempool, &sess_private_data)) {
 289                 CPT_LOG_ERR("Could not allocate sess_private_data");
 290                 return -ENOMEM;
 291         }
 292
 293         chain = xform;
 294         while (chain) {
 295                 switch (chain->type) {
 296                 case RTE_CRYPTO_SYM_XFORM_AEAD:
 297                         if (fill_sess_aead(chain, sess_private_data))
 298                                 goto err;
 299                         break;
 300                 case RTE_CRYPTO_SYM_XFORM_CIPHER:
 301                         if (fill_sess_cipher(chain, sess_private_data))
 302                                 goto err;
 303                         break;
 304                 case RTE_CRYPTO_SYM_XFORM_AUTH:
 305                         if (chain->auth.algo == RTE_CRYPTO_AUTH_AES_GMAC) {
 306                                 if (fill_sess_gmac(chain, sess_private_data))
 307                                         goto err;
 308                         } else {
 309                                 if (fill_sess_auth(chain, sess_private_data))
 310                                         goto err;
 311                         }
 312                         break;
 313                 default:
 314                         CPT_LOG_ERR("Invalid crypto xform type");
 315                         break;
 316                 }
 317                 chain = chain->next;
 318         }
 319         set_sym_session_private_data(sess, dev->driver_id, sess_private_data);
 320         otx_cpt_session_init(sess, dev->driver_id);
 321         return 0;
 322
 323 err:
 324         if (sess_private_data)
 325                 rte_mempool_put(mempool, sess_private_data);
 326         return -EPERM;
 327 }
 328
 329 static void
 330 otx_cpt_session_clear(struct rte_cryptodev *dev,
 331                   struct rte_cryptodev_sym_session *sess)
 332 {
 333         void *sess_priv = get_sym_session_private_data(sess, dev->driver_id);
 334
 335         CPT_PMD_INIT_FUNC_TRACE();
 336         if (sess_priv) {
 337                 memset(sess_priv, 0, otx_cpt_get_session_size(dev));
 338                 struct rte_mempool *sess_mp = rte_mempool_from_obj(sess_priv);
 339                 set_sym_session_private_data(sess, dev->driver_id, NULL);
 340                 rte_mempool_put(sess_mp, sess_priv);
 341         }
 342 }
 343
 344 static __rte_always_inline int32_t __hot
 345 otx_cpt_request_enqueue(struct cpt_instance *instance,
 346                         struct pending_queue *pqueue,
 347                         void *req)
 348 {
 349         struct cpt_request_info *user_req = (struct cpt_request_info *)req;
 350
 351         if (unlikely(pqueue->pending_count >= DEFAULT_CMD_QLEN))
 352                 return -EAGAIN;
 353
 354         fill_cpt_inst(instance, req);
 355
 356         CPT_LOG_DP_DEBUG("req: %p op: %p ", req, user_req->op);
 357
 358         /* Fill time_out cycles */
 359         user_req->time_out = rte_get_timer_cycles() +
 360                         DEFAULT_COMMAND_TIMEOUT * rte_get_timer_hz();
 361         user_req->extra_time = 0;
 362
 363         /* Default mode of software queue */
 364         mark_cpt_inst(instance);
 365
 366         pqueue->rid_queue[pqueue->enq_tail].rid = (uintptr_t)user_req;
 367
 368         /* We will use soft queue length here to limit requests */
 369         MOD_INC(pqueue->enq_tail, DEFAULT_CMD_QLEN);
 370         pqueue->pending_count += 1;
 371
 372         CPT_LOG_DP_DEBUG("Submitted NB cmd with request: %p "
 373                          "op: %p", user_req, user_req->op);
 374         return 0;
 375 }
 376
 377 static __rte_always_inline int __hot
 378 otx_cpt_enq_single_sym(struct cpt_instance *instance,
 379                        struct rte_crypto_op *op,
 380                        struct pending_queue *pqueue)
 381 {
 382         struct cpt_sess_misc *sess;
 383         struct rte_crypto_sym_op *sym_op = op->sym;
 384         void *prep_req, *mdata = NULL;
 385         int ret = 0;
 386         uint64_t cpt_op;
 387         struct cpt_vf *cptvf = (struct cpt_vf *)instance;
 388
 389         sess = (struct cpt_sess_misc *)
 390                         get_sym_session_private_data(sym_op->session,
 391                                                      otx_cryptodev_driver_id);
 392
 393         cpt_op = sess->cpt_op;
 394
 395         if (likely(cpt_op & CPT_OP_CIPHER_MASK))
 396                 ret = fill_fc_params(op, sess, &cptvf->meta_info, &mdata,
 397                                      &prep_req);
 398         else
 399                 ret = fill_digest_params(op, sess, &cptvf->meta_info,
 400                                          &mdata, &prep_req);
 401
 402         if (unlikely(ret)) {
 403                 CPT_LOG_DP_ERR("prep cryto req : op %p, cpt_op 0x%x "
 404                                "ret 0x%x", op, (unsigned int)cpt_op, ret);
 405                 return ret;
 406         }
 407
 408         /* Enqueue prepared instruction to h/w */
 409         ret = otx_cpt_request_enqueue(instance, pqueue, prep_req);
 410
 411         if (unlikely(ret)) {
 412                 /* Buffer allocated for request preparation need to be freed */
 413                 free_op_meta(mdata, cptvf->meta_info.cptvf_meta_pool);
 414                 return ret;
 415         }
 416
 417         return 0;
 418 }
 419
 420 static __rte_always_inline int __hot
 421 otx_cpt_enq_single_sym_sessless(struct cpt_instance *instance,
 422                                 struct rte_crypto_op *op,
 423                                 struct pending_queue *pqueue)
 424 {
 425         struct cpt_sess_misc *sess;
 426         struct rte_crypto_sym_op *sym_op = op->sym;
 427         int ret;
 428         void *sess_t = NULL;
 429         void *sess_private_data_t = NULL;
 430
 431         /* Create tmp session */
 432
 433         if (rte_mempool_get(instance->sess_mp, (void **)&sess_t)) {
 434                 ret = -ENOMEM;
 435                 goto exit;
 436         }
 437
 438         if (rte_mempool_get(instance->sess_mp_priv,
 439                         (void **)&sess_private_data_t)) {
 440                 ret = -ENOMEM;
 441                 goto free_sess;
 442         }
 443
 444         sess = (struct cpt_sess_misc *)sess_private_data_t;
 445
 446         sess->ctx_dma_addr = rte_mempool_virt2iova(sess) +
 447                         sizeof(struct cpt_sess_misc);
 448
 449         ret = instance_session_cfg(sym_op->xform, (void *)sess);
 450         if (unlikely(ret)) {
 451                 ret = -EINVAL;
 452                 goto free_sess_priv;
 453         }
 454
 455         /* Save tmp session in op */
 456
 457         sym_op->session = (struct rte_cryptodev_sym_session *)sess_t;
 458         set_sym_session_private_data(sym_op->session, otx_cryptodev_driver_id,
 459                                      sess_private_data_t);
 460
 461         /* Enqueue op with the tmp session set */
 462         ret = otx_cpt_enq_single_sym(instance, op, pqueue);
 463
 464         if (unlikely(ret))
 465                 goto free_sess_priv;
 466
 467         return 0;
 468
 469 free_sess_priv:
 470         rte_mempool_put(instance->sess_mp_priv, sess_private_data_t);
 471 free_sess:
 472         rte_mempool_put(instance->sess_mp, sess_t);
 473 exit:
 474         return ret;
 475 }
 476
 477 static __rte_always_inline int __hot
 478 otx_cpt_enq_single(struct cpt_instance *inst,
 479                    struct rte_crypto_op *op,
 480                    struct pending_queue *pqueue)
 481 {
 482         /* Check for the type */
 483
 484         if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION)
 485                 return otx_cpt_enq_single_sym(inst, op, pqueue);
 486         else if (unlikely(op->sess_type == RTE_CRYPTO_OP_SESSIONLESS))
 487                 return otx_cpt_enq_single_sym_sessless(inst, op, pqueue);
 488
 489         /* Should not reach here */
 490         return -EINVAL;
 491 }
 492
 493 static uint16_t
 494 otx_cpt_pkt_enqueue(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops)
 495 {
 496         struct cpt_instance *instance = (struct cpt_instance *)qptr;
 497         uint16_t count;
 498         int ret;
 499         struct cpt_vf *cptvf = (struct cpt_vf *)instance;
 500         struct pending_queue *pqueue = &cptvf->pqueue;
 501
 502         count = DEFAULT_CMD_QLEN - pqueue->pending_count;
 503         if (nb_ops > count)
 504                 nb_ops = count;
 505
 506         count = 0;
 507         while (likely(count < nb_ops)) {
 508
 509                 /* Enqueue single op */
 510                 ret = otx_cpt_enq_single(instance, ops[count], pqueue);
 511
 512                 if (unlikely(ret))
 513                         break;
 514                 count++;
 515         }
 516         otx_cpt_ring_dbell(instance, count);
 517         return count;
 518 }
 519
 520 static __rte_always_inline void
 521 otx_cpt_dequeue_post_process(struct rte_crypto_op *cop, uintptr_t *rsp)
 522 {
 523         /* H/w has returned success */
 524         cop->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
 525
 526         /* Perform further post processing */
 527
 528         if (cop->type == RTE_CRYPTO_OP_TYPE_SYMMETRIC) {
 529                 /* Check if auth verify need to be completed */
 530                 if (unlikely(rsp[2]))
 531                         compl_auth_verify(cop, (uint8_t *)rsp[2], rsp[3]);
 532                 return;
 533         }
 534 }
 535
 536 static uint16_t
 537 otx_cpt_pkt_dequeue(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops)
 538 {
 539         struct cpt_instance *instance = (struct cpt_instance *)qptr;
 540         struct cpt_request_info *user_req;
 541         struct cpt_vf *cptvf = (struct cpt_vf *)instance;
 542         struct rid *rid_e;
 543         uint8_t cc[nb_ops];
 544         int i, count, pcount;
 545         uint8_t ret;
 546         int nb_completed;
 547         struct pending_queue *pqueue = &cptvf->pqueue;
 548         struct rte_crypto_op *cop;
 549         void *metabuf;
 550         uintptr_t *rsp;
 551
 552         pcount = pqueue->pending_count;
 553         count = (nb_ops > pcount) ? pcount : nb_ops;
 554
 555         for (i = 0; i < count; i++) {
 556                 rid_e = &pqueue->rid_queue[pqueue->deq_head];
 557                 user_req = (struct cpt_request_info *)(rid_e->rid);
 558
 559                 if (likely((i+1) < count))
 560                         rte_prefetch_non_temporal((void *)rid_e[1].rid);
 561
 562                 ret = check_nb_command_id(user_req, instance);
 563
 564                 if (unlikely(ret == ERR_REQ_PENDING)) {
 565                         /* Stop checking for completions */
 566                         break;
 567                 }
 568
 569                 /* Return completion code and op handle */
 570                 cc[i] = ret;
 571                 ops[i] = user_req->op;
 572
 573                 CPT_LOG_DP_DEBUG("Request %p Op %p completed with code %d",
 574                                  user_req, user_req->op, ret);
 575
 576                 MOD_INC(pqueue->deq_head, DEFAULT_CMD_QLEN);
 577                 pqueue->pending_count -= 1;
 578         }
 579
 580         nb_completed = i;
 581
 582         for (i = 0; i < nb_completed; i++) {
 583
 584                 rsp = (void *)ops[i];
 585
 586                 if (likely((i + 1) < nb_completed))
 587                         rte_prefetch0(ops[i+1]);
 588
 589                 metabuf = (void *)rsp[0];
 590                 cop = (void *)rsp[1];
 591
 592                 ops[i] = cop;
 593
 594                 /* Check completion code */
 595
 596                 if (likely(cc[i] == 0)) {
 597                         /* H/w success pkt. Post process */
 598                         otx_cpt_dequeue_post_process(cop, rsp);
 599                 } else if (cc[i] == ERR_GC_ICV_MISCOMPARE) {
 600                         /* auth data mismatch */
 601                         cop->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
 602                 } else {
 603                         /* Error */
 604                         cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
 605                 }
 606
 607                 if (unlikely(cop->sess_type == RTE_CRYPTO_OP_SESSIONLESS)) {
 608                         void *sess_private_data_t =
 609                                 get_sym_session_private_data(cop->sym->session,
 610                                                 otx_cryptodev_driver_id);
 611                         memset(sess_private_data_t, 0,
 612                                         cpt_get_session_size());
 613                         memset(cop->sym->session, 0,
 614                         rte_cryptodev_sym_get_existing_header_session_size(
 615                                         cop->sym->session));
 616                         rte_mempool_put(instance->sess_mp_priv,
 617                                         sess_private_data_t);
 618                         rte_mempool_put(instance->sess_mp, cop->sym->session);
 619                         cop->sym->session = NULL;
 620                 }
 621                 free_op_meta(metabuf, cptvf->meta_info.cptvf_meta_pool);
 622         }
 623
 624         return nb_completed;
 625 }
 626
 627 static struct rte_cryptodev_ops cptvf_ops = {
 628         /* Device related operations */
 629         .dev_configure = otx_cpt_dev_config,
 630         .dev_start = otx_cpt_dev_start,
 631         .dev_stop = otx_cpt_dev_stop,
 632         .dev_close = otx_cpt_dev_close,
 633         .dev_infos_get = otx_cpt_dev_info_get,
 634
 635         .stats_get = otx_cpt_stats_get,
 636         .stats_reset = otx_cpt_stats_reset,
 637         .queue_pair_setup = otx_cpt_que_pair_setup,
 638         .queue_pair_release = otx_cpt_que_pair_release,
 639         .queue_pair_count = NULL,
 640
 641         /* Crypto related operations */
 642         .sym_session_get_size = otx_cpt_get_session_size,
 643         .sym_session_configure = otx_cpt_session_cfg,
 644         .sym_session_clear = otx_cpt_session_clear
 645 };
 646
 647 static void
 648 otx_cpt_common_vars_init(struct cpt_vf *cptvf)
 649 {
 650         cptvf->meta_info.cptvf_meta_pool = otx_cpt_meta_pool;
 651         cptvf->meta_info.cptvf_op_mlen = otx_cpt_op_mlen;
 652         cptvf->meta_info.cptvf_op_sb_mlen = otx_cpt_op_sb_mlen;
 653 }
 654
 655 int
 656 otx_cpt_dev_create(struct rte_cryptodev *c_dev)
 657 {
 658         struct rte_pci_device *pdev = RTE_DEV_TO_PCI(c_dev->device);
 659         struct cpt_vf *cptvf = NULL;
 660         void *reg_base;
 661         char dev_name[32];
 662         int ret;
 663
 664         if (pdev->mem_resource[0].phys_addr == 0ULL)
 665                 return -EIO;
 666
 667         /* for secondary processes, we don't initialise any further as primary
 668          * has already done this work.
 669          */
 670         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 671                 return 0;
 672
 673         cptvf = rte_zmalloc_socket("otx_cryptodev_private_mem",
 674                         sizeof(struct cpt_vf), RTE_CACHE_LINE_SIZE,
 675                         rte_socket_id());
 676
 677         if (cptvf == NULL) {
 678                 CPT_LOG_ERR("Cannot allocate memory for device private data");
 679                 return -ENOMEM;
 680         }
 681
 682         snprintf(dev_name, 32, "%02x:%02x.%x",
 683                         pdev->addr.bus, pdev->addr.devid, pdev->addr.function);
 684
 685         reg_base = pdev->mem_resource[0].addr;
 686         if (!reg_base) {
 687                 CPT_LOG_ERR("Failed to map BAR0 of %s", dev_name);
 688                 ret = -ENODEV;
 689                 goto fail;
 690         }
 691
 692         ret = otx_cpt_hw_init(cptvf, pdev, reg_base, dev_name);
 693         if (ret) {
 694                 CPT_LOG_ERR("Failed to init cptvf %s", dev_name);
 695                 ret = -EIO;
 696                 goto fail;
 697         }
 698
 699         /* Start off timer for mailbox interrupts */
 700         otx_cpt_periodic_alarm_start(cptvf);
 701
 702         rte_spinlock_lock(&otx_probe_count_lock);
 703         if (!otx_cryptodev_probe_count) {
 704                 ret = init_global_resources();
 705                 if (ret) {
 706                         rte_spinlock_unlock(&otx_probe_count_lock);
 707                         goto init_fail;
 708                 }
 709         }
 710         otx_cryptodev_probe_count++;
 711         rte_spinlock_unlock(&otx_probe_count_lock);
 712
 713         /* Initialize data path variables used by common code */
 714         otx_cpt_common_vars_init(cptvf);
 715
 716         c_dev->dev_ops = &cptvf_ops;
 717
 718         c_dev->enqueue_burst = otx_cpt_pkt_enqueue;
 719         c_dev->dequeue_burst = otx_cpt_pkt_dequeue;
 720
 721         c_dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
 722                         RTE_CRYPTODEV_FF_HW_ACCELERATED |
 723                         RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
 724                         RTE_CRYPTODEV_FF_IN_PLACE_SGL |
 725                         RTE_CRYPTODEV_FF_OOP_SGL_IN_LB_OUT |
 726                         RTE_CRYPTODEV_FF_OOP_SGL_IN_SGL_OUT;
 727
 728         /* Save dev private data */
 729         c_dev->data->dev_private = cptvf;
 730
 731         return 0;
 732
 733 init_fail:
 734         otx_cpt_periodic_alarm_stop(cptvf);
 735         otx_cpt_deinit_device(cptvf);
 736
 737 fail:
 738         if (cptvf) {
 739                 /* Free private data allocated */
 740                 rte_free(cptvf);
 741         }
 742
 743         return ret;
 744 }