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