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