1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2018 Cavium, Inc 3 */ 4 5 #include <rte_alarm.h> 6 #include <rte_bus_pci.h> 7 #include <rte_cryptodev.h> 8 #include <cryptodev_pmd.h> 9 #include <rte_eventdev.h> 10 #include <rte_event_crypto_adapter.h> 11 #include <rte_errno.h> 12 #include <rte_malloc.h> 13 #include <rte_mempool.h> 14 15 #include "otx_cryptodev.h" 16 #include "otx_cryptodev_capabilities.h" 17 #include "otx_cryptodev_hw_access.h" 18 #include "otx_cryptodev_mbox.h" 19 #include "otx_cryptodev_ops.h" 20 21 #include "cpt_pmd_logs.h" 22 #include "cpt_pmd_ops_helper.h" 23 #include "cpt_ucode.h" 24 #include "cpt_ucode_asym.h" 25 26 #include "ssovf_worker.h" 27 28 static uint64_t otx_fpm_iova[CPT_EC_ID_PMAX]; 29 30 /* Forward declarations */ 31 32 static int 33 otx_cpt_que_pair_release(struct rte_cryptodev *dev, uint16_t que_pair_id); 34 35 /* Alarm routines */ 36 37 static void 38 otx_cpt_alarm_cb(void *arg) 39 { 40 struct cpt_vf *cptvf = arg; 41 otx_cpt_poll_misc(cptvf); 42 rte_eal_alarm_set(CPT_INTR_POLL_INTERVAL_MS * 1000, 43 otx_cpt_alarm_cb, cptvf); 44 } 45 46 static int 47 otx_cpt_periodic_alarm_start(void *arg) 48 { 49 return rte_eal_alarm_set(CPT_INTR_POLL_INTERVAL_MS * 1000, 50 otx_cpt_alarm_cb, arg); 51 } 52 53 static int 54 otx_cpt_periodic_alarm_stop(void *arg) 55 { 56 return rte_eal_alarm_cancel(otx_cpt_alarm_cb, arg); 57 } 58 59 /* PMD ops */ 60 61 static int 62 otx_cpt_dev_config(struct rte_cryptodev *dev, 63 struct rte_cryptodev_config *config __rte_unused) 64 { 65 int ret = 0; 66 67 CPT_PMD_INIT_FUNC_TRACE(); 68 69 if (dev->feature_flags & RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO) 70 /* Initialize shared FPM table */ 71 ret = cpt_fpm_init(otx_fpm_iova); 72 73 return ret; 74 } 75 76 static int 77 otx_cpt_dev_start(struct rte_cryptodev *c_dev) 78 { 79 void *cptvf = c_dev->data->dev_private; 80 81 CPT_PMD_INIT_FUNC_TRACE(); 82 83 return otx_cpt_start_device(cptvf); 84 } 85 86 static void 87 otx_cpt_dev_stop(struct rte_cryptodev *c_dev) 88 { 89 void *cptvf = c_dev->data->dev_private; 90 91 CPT_PMD_INIT_FUNC_TRACE(); 92 93 if (c_dev->feature_flags & RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO) 94 cpt_fpm_clear(); 95 96 otx_cpt_stop_device(cptvf); 97 } 98 99 static int 100 otx_cpt_dev_close(struct rte_cryptodev *c_dev) 101 { 102 void *cptvf = c_dev->data->dev_private; 103 int i, ret; 104 105 CPT_PMD_INIT_FUNC_TRACE(); 106 107 for (i = 0; i < c_dev->data->nb_queue_pairs; i++) { 108 ret = otx_cpt_que_pair_release(c_dev, i); 109 if (ret) 110 return ret; 111 } 112 113 otx_cpt_periodic_alarm_stop(cptvf); 114 otx_cpt_deinit_device(cptvf); 115 116 return 0; 117 } 118 119 static void 120 otx_cpt_dev_info_get(struct rte_cryptodev *dev, struct rte_cryptodev_info *info) 121 { 122 CPT_PMD_INIT_FUNC_TRACE(); 123 if (info != NULL) { 124 info->max_nb_queue_pairs = CPT_NUM_QS_PER_VF; 125 info->feature_flags = dev->feature_flags; 126 info->capabilities = otx_get_capabilities(info->feature_flags); 127 info->sym.max_nb_sessions = 0; 128 info->driver_id = otx_cryptodev_driver_id; 129 info->min_mbuf_headroom_req = OTX_CPT_MIN_HEADROOM_REQ; 130 info->min_mbuf_tailroom_req = OTX_CPT_MIN_TAILROOM_REQ; 131 } 132 } 133 134 static int 135 otx_cpt_que_pair_setup(struct rte_cryptodev *dev, 136 uint16_t que_pair_id, 137 const struct rte_cryptodev_qp_conf *qp_conf, 138 int socket_id __rte_unused) 139 { 140 struct cpt_instance *instance = NULL; 141 struct rte_pci_device *pci_dev; 142 int ret = -1; 143 144 CPT_PMD_INIT_FUNC_TRACE(); 145 146 if (dev->data->queue_pairs[que_pair_id] != NULL) { 147 ret = otx_cpt_que_pair_release(dev, que_pair_id); 148 if (ret) 149 return ret; 150 } 151 152 if (qp_conf->nb_descriptors > DEFAULT_CMD_QLEN) { 153 CPT_LOG_INFO("Number of descriptors too big %d, using default " 154 "queue length of %d", qp_conf->nb_descriptors, 155 DEFAULT_CMD_QLEN); 156 } 157 158 pci_dev = RTE_DEV_TO_PCI(dev->device); 159 160 if (pci_dev->mem_resource[0].addr == NULL) { 161 CPT_LOG_ERR("PCI mem address null"); 162 return -EIO; 163 } 164 165 ret = otx_cpt_get_resource(dev, 0, &instance, que_pair_id); 166 if (ret != 0 || instance == NULL) { 167 CPT_LOG_ERR("Error getting instance handle from device %s : " 168 "ret = %d", dev->data->name, ret); 169 return ret; 170 } 171 172 instance->queue_id = que_pair_id; 173 instance->sess_mp = qp_conf->mp_session; 174 instance->sess_mp_priv = qp_conf->mp_session_private; 175 dev->data->queue_pairs[que_pair_id] = instance; 176 177 return 0; 178 } 179 180 static int 181 otx_cpt_que_pair_release(struct rte_cryptodev *dev, uint16_t que_pair_id) 182 { 183 struct cpt_instance *instance = dev->data->queue_pairs[que_pair_id]; 184 int ret; 185 186 CPT_PMD_INIT_FUNC_TRACE(); 187 188 ret = otx_cpt_put_resource(instance); 189 if (ret != 0) { 190 CPT_LOG_ERR("Error putting instance handle of device %s : " 191 "ret = %d", dev->data->name, ret); 192 return ret; 193 } 194 195 dev->data->queue_pairs[que_pair_id] = NULL; 196 197 return 0; 198 } 199 200 static unsigned int 201 otx_cpt_get_session_size(struct rte_cryptodev *dev __rte_unused) 202 { 203 return cpt_get_session_size(); 204 } 205 206 static int 207 sym_xform_verify(struct rte_crypto_sym_xform *xform) 208 { 209 if (xform->next) { 210 if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH && 211 xform->next->type == RTE_CRYPTO_SYM_XFORM_CIPHER && 212 xform->next->cipher.op == RTE_CRYPTO_CIPHER_OP_ENCRYPT && 213 (xform->auth.algo != RTE_CRYPTO_AUTH_SHA1_HMAC || 214 xform->next->cipher.algo != RTE_CRYPTO_CIPHER_AES_CBC)) 215 return -ENOTSUP; 216 217 if (xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER && 218 xform->cipher.op == RTE_CRYPTO_CIPHER_OP_DECRYPT && 219 xform->next->type == RTE_CRYPTO_SYM_XFORM_AUTH && 220 (xform->cipher.algo != RTE_CRYPTO_CIPHER_AES_CBC || 221 xform->next->auth.algo != RTE_CRYPTO_AUTH_SHA1_HMAC)) 222 return -ENOTSUP; 223 224 if (xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER && 225 xform->cipher.algo == RTE_CRYPTO_CIPHER_3DES_CBC && 226 xform->next->type == RTE_CRYPTO_SYM_XFORM_AUTH && 227 xform->next->auth.algo == RTE_CRYPTO_AUTH_SHA1) 228 return -ENOTSUP; 229 230 if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH && 231 xform->auth.algo == RTE_CRYPTO_AUTH_SHA1 && 232 xform->next->type == RTE_CRYPTO_SYM_XFORM_CIPHER && 233 xform->next->cipher.algo == RTE_CRYPTO_CIPHER_3DES_CBC) 234 return -ENOTSUP; 235 236 } else { 237 if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH && 238 xform->auth.algo == RTE_CRYPTO_AUTH_NULL && 239 xform->auth.op == RTE_CRYPTO_AUTH_OP_VERIFY) 240 return -ENOTSUP; 241 } 242 return 0; 243 } 244 245 static int 246 sym_session_configure(int driver_id, struct rte_crypto_sym_xform *xform, 247 struct rte_cryptodev_sym_session *sess, 248 struct rte_mempool *pool) 249 { 250 struct rte_crypto_sym_xform *temp_xform = xform; 251 struct cpt_sess_misc *misc; 252 vq_cmd_word3_t vq_cmd_w3; 253 void *priv; 254 int ret; 255 256 ret = sym_xform_verify(xform); 257 if (unlikely(ret)) 258 return ret; 259 260 if (unlikely(rte_mempool_get(pool, &priv))) { 261 CPT_LOG_ERR("Could not allocate session private data"); 262 return -ENOMEM; 263 } 264 265 memset(priv, 0, sizeof(struct cpt_sess_misc) + 266 offsetof(struct cpt_ctx, mc_ctx)); 267 268 misc = priv; 269 270 for ( ; xform != NULL; xform = xform->next) { 271 switch (xform->type) { 272 case RTE_CRYPTO_SYM_XFORM_AEAD: 273 ret = fill_sess_aead(xform, misc); 274 break; 275 case RTE_CRYPTO_SYM_XFORM_CIPHER: 276 ret = fill_sess_cipher(xform, misc); 277 break; 278 case RTE_CRYPTO_SYM_XFORM_AUTH: 279 if (xform->auth.algo == RTE_CRYPTO_AUTH_AES_GMAC) 280 ret = fill_sess_gmac(xform, misc); 281 else 282 ret = fill_sess_auth(xform, misc); 283 break; 284 default: 285 ret = -1; 286 } 287 288 if (ret) 289 goto priv_put; 290 } 291 292 if ((GET_SESS_FC_TYPE(misc) == HASH_HMAC) && 293 cpt_mac_len_verify(&temp_xform->auth)) { 294 CPT_LOG_ERR("MAC length is not supported"); 295 struct cpt_ctx *ctx = SESS_PRIV(misc); 296 if (ctx->auth_key != NULL) { 297 rte_free(ctx->auth_key); 298 ctx->auth_key = NULL; 299 } 300 ret = -ENOTSUP; 301 goto priv_put; 302 } 303 304 set_sym_session_private_data(sess, driver_id, priv); 305 306 misc->ctx_dma_addr = rte_mempool_virt2iova(misc) + 307 sizeof(struct cpt_sess_misc); 308 309 vq_cmd_w3.u64 = 0; 310 vq_cmd_w3.s.grp = 0; 311 vq_cmd_w3.s.cptr = misc->ctx_dma_addr + offsetof(struct cpt_ctx, 312 mc_ctx); 313 314 misc->cpt_inst_w7 = vq_cmd_w3.u64; 315 316 return 0; 317 318 priv_put: 319 if (priv) 320 rte_mempool_put(pool, priv); 321 return -ENOTSUP; 322 } 323 324 static void 325 sym_session_clear(int driver_id, struct rte_cryptodev_sym_session *sess) 326 { 327 void *priv = get_sym_session_private_data(sess, driver_id); 328 struct cpt_sess_misc *misc; 329 struct rte_mempool *pool; 330 struct cpt_ctx *ctx; 331 332 if (priv == NULL) 333 return; 334 335 misc = priv; 336 ctx = SESS_PRIV(misc); 337 338 if (ctx->auth_key != NULL) 339 rte_free(ctx->auth_key); 340 341 memset(priv, 0, cpt_get_session_size()); 342 343 pool = rte_mempool_from_obj(priv); 344 345 set_sym_session_private_data(sess, driver_id, NULL); 346 347 rte_mempool_put(pool, priv); 348 } 349 350 static int 351 otx_cpt_session_cfg(struct rte_cryptodev *dev, 352 struct rte_crypto_sym_xform *xform, 353 struct rte_cryptodev_sym_session *sess, 354 struct rte_mempool *pool) 355 { 356 CPT_PMD_INIT_FUNC_TRACE(); 357 358 return sym_session_configure(dev->driver_id, xform, sess, pool); 359 } 360 361 362 static void 363 otx_cpt_session_clear(struct rte_cryptodev *dev, 364 struct rte_cryptodev_sym_session *sess) 365 { 366 CPT_PMD_INIT_FUNC_TRACE(); 367 368 return sym_session_clear(dev->driver_id, sess); 369 } 370 371 static unsigned int 372 otx_cpt_asym_session_size_get(struct rte_cryptodev *dev __rte_unused) 373 { 374 return sizeof(struct cpt_asym_sess_misc); 375 } 376 377 static int 378 otx_cpt_asym_session_cfg(struct rte_cryptodev *dev, 379 struct rte_crypto_asym_xform *xform __rte_unused, 380 struct rte_cryptodev_asym_session *sess, 381 struct rte_mempool *pool) 382 { 383 struct cpt_asym_sess_misc *priv; 384 int ret; 385 386 CPT_PMD_INIT_FUNC_TRACE(); 387 388 if (rte_mempool_get(pool, (void **)&priv)) { 389 CPT_LOG_ERR("Could not allocate session private data"); 390 return -ENOMEM; 391 } 392 393 memset(priv, 0, sizeof(struct cpt_asym_sess_misc)); 394 395 ret = cpt_fill_asym_session_parameters(priv, xform); 396 if (ret) { 397 CPT_LOG_ERR("Could not configure session parameters"); 398 399 /* Return session to mempool */ 400 rte_mempool_put(pool, priv); 401 return ret; 402 } 403 404 priv->cpt_inst_w7 = 0; 405 406 set_asym_session_private_data(sess, dev->driver_id, priv); 407 return 0; 408 } 409 410 static void 411 otx_cpt_asym_session_clear(struct rte_cryptodev *dev, 412 struct rte_cryptodev_asym_session *sess) 413 { 414 struct cpt_asym_sess_misc *priv; 415 struct rte_mempool *sess_mp; 416 417 CPT_PMD_INIT_FUNC_TRACE(); 418 419 priv = get_asym_session_private_data(sess, dev->driver_id); 420 421 if (priv == NULL) 422 return; 423 424 /* Free resources allocated during session configure */ 425 cpt_free_asym_session_parameters(priv); 426 memset(priv, 0, otx_cpt_asym_session_size_get(dev)); 427 sess_mp = rte_mempool_from_obj(priv); 428 set_asym_session_private_data(sess, dev->driver_id, NULL); 429 rte_mempool_put(sess_mp, priv); 430 } 431 432 static __rte_always_inline void * __rte_hot 433 otx_cpt_request_enqueue(struct cpt_instance *instance, 434 struct pending_queue *pqueue, 435 void *req, uint64_t cpt_inst_w7) 436 { 437 struct cpt_request_info *user_req = (struct cpt_request_info *)req; 438 439 if (unlikely(pqueue->pending_count >= DEFAULT_CMD_QLEN)) { 440 rte_errno = EAGAIN; 441 return NULL; 442 } 443 444 fill_cpt_inst(instance, req, cpt_inst_w7); 445 446 CPT_LOG_DP_DEBUG("req: %p op: %p ", req, user_req->op); 447 448 /* Fill time_out cycles */ 449 user_req->time_out = rte_get_timer_cycles() + 450 DEFAULT_COMMAND_TIMEOUT * rte_get_timer_hz(); 451 user_req->extra_time = 0; 452 453 /* Default mode of software queue */ 454 mark_cpt_inst(instance); 455 456 CPT_LOG_DP_DEBUG("Submitted NB cmd with request: %p " 457 "op: %p", user_req, user_req->op); 458 return req; 459 } 460 461 static __rte_always_inline void * __rte_hot 462 otx_cpt_enq_single_asym(struct cpt_instance *instance, 463 struct rte_crypto_op *op, 464 struct pending_queue *pqueue) 465 { 466 struct cpt_qp_meta_info *minfo = &instance->meta_info; 467 struct rte_crypto_asym_op *asym_op = op->asym; 468 struct asym_op_params params = {0}; 469 struct cpt_asym_sess_misc *sess; 470 uintptr_t *cop; 471 void *mdata; 472 void *req; 473 int ret; 474 475 if (unlikely(rte_mempool_get(minfo->pool, &mdata) < 0)) { 476 CPT_LOG_DP_ERR("Could not allocate meta buffer for request"); 477 rte_errno = ENOMEM; 478 return NULL; 479 } 480 481 sess = get_asym_session_private_data(asym_op->session, 482 otx_cryptodev_driver_id); 483 484 /* Store phys_addr of the mdata to meta_buf */ 485 params.meta_buf = rte_mempool_virt2iova(mdata); 486 487 cop = mdata; 488 cop[0] = (uintptr_t)mdata; 489 cop[1] = (uintptr_t)op; 490 cop[2] = cop[3] = 0ULL; 491 492 params.req = RTE_PTR_ADD(cop, 4 * sizeof(uintptr_t)); 493 params.req->op = cop; 494 495 /* Adjust meta_buf by crypto_op data and request_info struct */ 496 params.meta_buf += (4 * sizeof(uintptr_t)) + 497 sizeof(struct cpt_request_info); 498 499 switch (sess->xfrm_type) { 500 case RTE_CRYPTO_ASYM_XFORM_MODEX: 501 ret = cpt_modex_prep(¶ms, &sess->mod_ctx); 502 if (unlikely(ret)) 503 goto req_fail; 504 break; 505 case RTE_CRYPTO_ASYM_XFORM_RSA: 506 ret = cpt_enqueue_rsa_op(op, ¶ms, sess); 507 if (unlikely(ret)) 508 goto req_fail; 509 break; 510 case RTE_CRYPTO_ASYM_XFORM_ECDSA: 511 ret = cpt_enqueue_ecdsa_op(op, ¶ms, sess, otx_fpm_iova); 512 if (unlikely(ret)) 513 goto req_fail; 514 break; 515 case RTE_CRYPTO_ASYM_XFORM_ECPM: 516 ret = cpt_ecpm_prep(&asym_op->ecpm, ¶ms, 517 sess->ec_ctx.curveid); 518 if (unlikely(ret)) 519 goto req_fail; 520 break; 521 522 default: 523 op->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS; 524 rte_errno = EINVAL; 525 goto req_fail; 526 } 527 528 req = otx_cpt_request_enqueue(instance, pqueue, params.req, 529 sess->cpt_inst_w7); 530 if (unlikely(req == NULL)) { 531 CPT_LOG_DP_ERR("Could not enqueue crypto req"); 532 goto req_fail; 533 } 534 535 return req; 536 537 req_fail: 538 free_op_meta(mdata, minfo->pool); 539 540 return NULL; 541 } 542 543 static __rte_always_inline void * __rte_hot 544 otx_cpt_enq_single_sym(struct cpt_instance *instance, 545 struct rte_crypto_op *op, 546 struct pending_queue *pqueue) 547 { 548 struct cpt_sess_misc *sess; 549 struct rte_crypto_sym_op *sym_op = op->sym; 550 struct cpt_request_info *prep_req; 551 void *mdata = NULL; 552 int ret = 0; 553 void *req; 554 uint64_t cpt_op; 555 556 sess = (struct cpt_sess_misc *) 557 get_sym_session_private_data(sym_op->session, 558 otx_cryptodev_driver_id); 559 560 cpt_op = sess->cpt_op; 561 562 if (likely(cpt_op & CPT_OP_CIPHER_MASK)) 563 ret = fill_fc_params(op, sess, &instance->meta_info, &mdata, 564 (void **)&prep_req); 565 else 566 ret = fill_digest_params(op, sess, &instance->meta_info, 567 &mdata, (void **)&prep_req); 568 569 if (unlikely(ret)) { 570 CPT_LOG_DP_ERR("prep cryto req : op %p, cpt_op 0x%x " 571 "ret 0x%x", op, (unsigned int)cpt_op, ret); 572 return NULL; 573 } 574 575 /* Enqueue prepared instruction to h/w */ 576 req = otx_cpt_request_enqueue(instance, pqueue, prep_req, 577 sess->cpt_inst_w7); 578 if (unlikely(req == NULL)) 579 /* Buffer allocated for request preparation need to be freed */ 580 free_op_meta(mdata, instance->meta_info.pool); 581 582 return req; 583 } 584 585 static __rte_always_inline void * __rte_hot 586 otx_cpt_enq_single_sym_sessless(struct cpt_instance *instance, 587 struct rte_crypto_op *op, 588 struct pending_queue *pend_q) 589 { 590 const int driver_id = otx_cryptodev_driver_id; 591 struct rte_crypto_sym_op *sym_op = op->sym; 592 struct rte_cryptodev_sym_session *sess; 593 void *req; 594 int ret; 595 596 /* Create temporary session */ 597 sess = rte_cryptodev_sym_session_create(instance->sess_mp); 598 if (sess == NULL) { 599 rte_errno = ENOMEM; 600 return NULL; 601 } 602 603 ret = sym_session_configure(driver_id, sym_op->xform, sess, 604 instance->sess_mp_priv); 605 if (ret) 606 goto sess_put; 607 608 sym_op->session = sess; 609 610 req = otx_cpt_enq_single_sym(instance, op, pend_q); 611 612 if (unlikely(req == NULL)) 613 goto priv_put; 614 615 return req; 616 617 priv_put: 618 sym_session_clear(driver_id, sess); 619 sess_put: 620 rte_mempool_put(instance->sess_mp, sess); 621 return NULL; 622 } 623 624 #define OP_TYPE_SYM 0 625 #define OP_TYPE_ASYM 1 626 627 static __rte_always_inline void *__rte_hot 628 otx_cpt_enq_single(struct cpt_instance *inst, 629 struct rte_crypto_op *op, 630 struct pending_queue *pqueue, 631 const uint8_t op_type) 632 { 633 /* Check for the type */ 634 635 if (op_type == OP_TYPE_SYM) { 636 if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION) 637 return otx_cpt_enq_single_sym(inst, op, pqueue); 638 else 639 return otx_cpt_enq_single_sym_sessless(inst, op, 640 pqueue); 641 } 642 643 if (op_type == OP_TYPE_ASYM) { 644 if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION) 645 return otx_cpt_enq_single_asym(inst, op, pqueue); 646 } 647 648 /* Should not reach here */ 649 rte_errno = ENOTSUP; 650 return NULL; 651 } 652 653 static __rte_always_inline uint16_t __rte_hot 654 otx_cpt_pkt_enqueue(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops, 655 const uint8_t op_type) 656 { 657 struct cpt_instance *instance = (struct cpt_instance *)qptr; 658 uint16_t count; 659 void *req; 660 struct cpt_vf *cptvf = (struct cpt_vf *)instance; 661 struct pending_queue *pqueue = &cptvf->pqueue; 662 663 count = DEFAULT_CMD_QLEN - pqueue->pending_count; 664 if (nb_ops > count) 665 nb_ops = count; 666 667 count = 0; 668 while (likely(count < nb_ops)) { 669 670 /* Enqueue single op */ 671 req = otx_cpt_enq_single(instance, ops[count], pqueue, op_type); 672 673 if (unlikely(req == NULL)) 674 break; 675 676 pqueue->req_queue[pqueue->enq_tail] = (uintptr_t)req; 677 MOD_INC(pqueue->enq_tail, DEFAULT_CMD_QLEN); 678 pqueue->pending_count += 1; 679 count++; 680 } 681 otx_cpt_ring_dbell(instance, count); 682 return count; 683 } 684 685 static uint16_t 686 otx_cpt_enqueue_asym(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops) 687 { 688 return otx_cpt_pkt_enqueue(qptr, ops, nb_ops, OP_TYPE_ASYM); 689 } 690 691 static uint16_t 692 otx_cpt_enqueue_sym(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops) 693 { 694 return otx_cpt_pkt_enqueue(qptr, ops, nb_ops, OP_TYPE_SYM); 695 } 696 697 static __rte_always_inline void 698 submit_request_to_sso(struct ssows *ws, uintptr_t req, 699 struct rte_event *rsp_info) 700 { 701 uint64_t add_work; 702 703 add_work = rsp_info->flow_id | (RTE_EVENT_TYPE_CRYPTODEV << 28) | 704 ((uint64_t)(rsp_info->sched_type) << 32); 705 706 if (!rsp_info->sched_type) 707 ssows_head_wait(ws); 708 709 rte_atomic_thread_fence(__ATOMIC_RELEASE); 710 ssovf_store_pair(add_work, req, ws->grps[rsp_info->queue_id]); 711 } 712 713 static inline union rte_event_crypto_metadata * 714 get_event_crypto_mdata(struct rte_crypto_op *op) 715 { 716 union rte_event_crypto_metadata *ec_mdata; 717 718 if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION) 719 ec_mdata = rte_cryptodev_sym_session_get_user_data( 720 op->sym->session); 721 else if (op->sess_type == RTE_CRYPTO_OP_SESSIONLESS && 722 op->private_data_offset) 723 ec_mdata = (union rte_event_crypto_metadata *) 724 ((uint8_t *)op + op->private_data_offset); 725 else 726 return NULL; 727 728 return ec_mdata; 729 } 730 731 uint16_t __rte_hot 732 otx_crypto_adapter_enqueue(void *port, struct rte_crypto_op *op) 733 { 734 union rte_event_crypto_metadata *ec_mdata; 735 struct cpt_instance *instance; 736 struct cpt_request_info *req; 737 struct rte_event *rsp_info; 738 uint8_t op_type, cdev_id; 739 uint16_t qp_id; 740 741 ec_mdata = get_event_crypto_mdata(op); 742 if (unlikely(ec_mdata == NULL)) { 743 rte_errno = EINVAL; 744 return 0; 745 } 746 747 cdev_id = ec_mdata->request_info.cdev_id; 748 qp_id = ec_mdata->request_info.queue_pair_id; 749 rsp_info = &ec_mdata->response_info; 750 instance = rte_cryptodevs[cdev_id].data->queue_pairs[qp_id]; 751 752 if (unlikely(!instance->ca_enabled)) { 753 rte_errno = EINVAL; 754 return 0; 755 } 756 757 op_type = op->type == RTE_CRYPTO_OP_TYPE_SYMMETRIC ? OP_TYPE_SYM : 758 OP_TYPE_ASYM; 759 req = otx_cpt_enq_single(instance, op, 760 &((struct cpt_vf *)instance)->pqueue, op_type); 761 if (unlikely(req == NULL)) 762 return 0; 763 764 otx_cpt_ring_dbell(instance, 1); 765 req->qp = instance; 766 submit_request_to_sso(port, (uintptr_t)req, rsp_info); 767 768 return 1; 769 } 770 771 static inline void 772 otx_cpt_asym_rsa_op(struct rte_crypto_op *cop, struct cpt_request_info *req, 773 struct rte_crypto_rsa_xform *rsa_ctx) 774 775 { 776 struct rte_crypto_rsa_op_param *rsa = &cop->asym->rsa; 777 778 switch (rsa->op_type) { 779 case RTE_CRYPTO_ASYM_OP_ENCRYPT: 780 rsa->cipher.length = rsa_ctx->n.length; 781 memcpy(rsa->cipher.data, req->rptr, rsa->cipher.length); 782 break; 783 case RTE_CRYPTO_ASYM_OP_DECRYPT: 784 if (rsa->pad == RTE_CRYPTO_RSA_PADDING_NONE) 785 rsa->message.length = rsa_ctx->n.length; 786 else { 787 /* Get length of decrypted output */ 788 rsa->message.length = rte_cpu_to_be_16 789 (*((uint16_t *)req->rptr)); 790 791 /* Offset data pointer by length fields */ 792 req->rptr += 2; 793 } 794 memcpy(rsa->message.data, req->rptr, rsa->message.length); 795 break; 796 case RTE_CRYPTO_ASYM_OP_SIGN: 797 rsa->sign.length = rsa_ctx->n.length; 798 memcpy(rsa->sign.data, req->rptr, rsa->sign.length); 799 break; 800 case RTE_CRYPTO_ASYM_OP_VERIFY: 801 if (rsa->pad == RTE_CRYPTO_RSA_PADDING_NONE) 802 rsa->sign.length = rsa_ctx->n.length; 803 else { 804 /* Get length of decrypted output */ 805 rsa->sign.length = rte_cpu_to_be_16 806 (*((uint16_t *)req->rptr)); 807 808 /* Offset data pointer by length fields */ 809 req->rptr += 2; 810 } 811 memcpy(rsa->sign.data, req->rptr, rsa->sign.length); 812 813 if (memcmp(rsa->sign.data, rsa->message.data, 814 rsa->message.length)) { 815 CPT_LOG_DP_ERR("RSA verification failed"); 816 cop->status = RTE_CRYPTO_OP_STATUS_ERROR; 817 } 818 break; 819 default: 820 CPT_LOG_DP_DEBUG("Invalid RSA operation type"); 821 cop->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS; 822 break; 823 } 824 } 825 826 static __rte_always_inline void 827 otx_cpt_asym_dequeue_ecdsa_op(struct rte_crypto_ecdsa_op_param *ecdsa, 828 struct cpt_request_info *req, 829 struct cpt_asym_ec_ctx *ec) 830 831 { 832 int prime_len = ec_grp[ec->curveid].prime.length; 833 834 if (ecdsa->op_type == RTE_CRYPTO_ASYM_OP_VERIFY) 835 return; 836 837 /* Separate out sign r and s components */ 838 memcpy(ecdsa->r.data, req->rptr, prime_len); 839 memcpy(ecdsa->s.data, req->rptr + RTE_ALIGN_CEIL(prime_len, 8), 840 prime_len); 841 ecdsa->r.length = prime_len; 842 ecdsa->s.length = prime_len; 843 } 844 845 static __rte_always_inline void 846 otx_cpt_asym_dequeue_ecpm_op(struct rte_crypto_ecpm_op_param *ecpm, 847 struct cpt_request_info *req, 848 struct cpt_asym_ec_ctx *ec) 849 { 850 int prime_len = ec_grp[ec->curveid].prime.length; 851 852 memcpy(ecpm->r.x.data, req->rptr, prime_len); 853 memcpy(ecpm->r.y.data, req->rptr + RTE_ALIGN_CEIL(prime_len, 8), 854 prime_len); 855 ecpm->r.x.length = prime_len; 856 ecpm->r.y.length = prime_len; 857 } 858 859 static __rte_always_inline void __rte_hot 860 otx_cpt_asym_post_process(struct rte_crypto_op *cop, 861 struct cpt_request_info *req) 862 { 863 struct rte_crypto_asym_op *op = cop->asym; 864 struct cpt_asym_sess_misc *sess; 865 866 sess = get_asym_session_private_data(op->session, 867 otx_cryptodev_driver_id); 868 869 switch (sess->xfrm_type) { 870 case RTE_CRYPTO_ASYM_XFORM_RSA: 871 otx_cpt_asym_rsa_op(cop, req, &sess->rsa_ctx); 872 break; 873 case RTE_CRYPTO_ASYM_XFORM_MODEX: 874 op->modex.result.length = sess->mod_ctx.modulus.length; 875 memcpy(op->modex.result.data, req->rptr, 876 op->modex.result.length); 877 break; 878 case RTE_CRYPTO_ASYM_XFORM_ECDSA: 879 otx_cpt_asym_dequeue_ecdsa_op(&op->ecdsa, req, &sess->ec_ctx); 880 break; 881 case RTE_CRYPTO_ASYM_XFORM_ECPM: 882 otx_cpt_asym_dequeue_ecpm_op(&op->ecpm, req, &sess->ec_ctx); 883 break; 884 default: 885 CPT_LOG_DP_DEBUG("Invalid crypto xform type"); 886 cop->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS; 887 break; 888 } 889 } 890 891 static __rte_always_inline void __rte_hot 892 otx_cpt_dequeue_post_process(struct rte_crypto_op *cop, uintptr_t *rsp, 893 const uint8_t op_type) 894 { 895 /* H/w has returned success */ 896 cop->status = RTE_CRYPTO_OP_STATUS_SUCCESS; 897 898 /* Perform further post processing */ 899 900 if ((op_type == OP_TYPE_SYM) && 901 (cop->type == RTE_CRYPTO_OP_TYPE_SYMMETRIC)) { 902 /* Check if auth verify need to be completed */ 903 if (unlikely(rsp[2])) 904 compl_auth_verify(cop, (uint8_t *)rsp[2], rsp[3]); 905 return; 906 } 907 908 if ((op_type == OP_TYPE_ASYM) && 909 (cop->type == RTE_CRYPTO_OP_TYPE_ASYMMETRIC)) { 910 rsp = RTE_PTR_ADD(rsp, 4 * sizeof(uintptr_t)); 911 otx_cpt_asym_post_process(cop, (struct cpt_request_info *)rsp); 912 } 913 914 return; 915 } 916 917 static inline void 918 free_sym_session_data(const struct cpt_instance *instance, 919 struct rte_crypto_op *cop) 920 { 921 void *sess_private_data_t = get_sym_session_private_data( 922 cop->sym->session, otx_cryptodev_driver_id); 923 memset(sess_private_data_t, 0, cpt_get_session_size()); 924 memset(cop->sym->session, 0, 925 rte_cryptodev_sym_get_existing_header_session_size( 926 cop->sym->session)); 927 rte_mempool_put(instance->sess_mp_priv, sess_private_data_t); 928 rte_mempool_put(instance->sess_mp, cop->sym->session); 929 cop->sym->session = NULL; 930 } 931 932 static __rte_always_inline struct rte_crypto_op * 933 otx_cpt_process_response(const struct cpt_instance *instance, uintptr_t *rsp, 934 uint8_t cc, const uint8_t op_type) 935 { 936 struct rte_crypto_op *cop; 937 void *metabuf; 938 939 metabuf = (void *)rsp[0]; 940 cop = (void *)rsp[1]; 941 942 /* Check completion code */ 943 if (likely(cc == 0)) { 944 /* H/w success pkt. Post process */ 945 otx_cpt_dequeue_post_process(cop, rsp, op_type); 946 } else if (cc == ERR_GC_ICV_MISCOMPARE) { 947 /* auth data mismatch */ 948 cop->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED; 949 } else { 950 /* Error */ 951 cop->status = RTE_CRYPTO_OP_STATUS_ERROR; 952 } 953 954 if (unlikely(cop->sess_type == RTE_CRYPTO_OP_SESSIONLESS)) 955 free_sym_session_data(instance, cop); 956 free_op_meta(metabuf, instance->meta_info.pool); 957 958 return cop; 959 } 960 961 static __rte_always_inline uint16_t __rte_hot 962 otx_cpt_pkt_dequeue(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops, 963 const uint8_t op_type) 964 { 965 struct cpt_instance *instance = (struct cpt_instance *)qptr; 966 struct cpt_request_info *user_req; 967 struct cpt_vf *cptvf = (struct cpt_vf *)instance; 968 uint8_t cc[nb_ops]; 969 int i, count, pcount; 970 uint8_t ret; 971 int nb_completed; 972 struct pending_queue *pqueue = &cptvf->pqueue; 973 974 pcount = pqueue->pending_count; 975 count = (nb_ops > pcount) ? pcount : nb_ops; 976 977 for (i = 0; i < count; i++) { 978 user_req = (struct cpt_request_info *) 979 pqueue->req_queue[pqueue->deq_head]; 980 981 if (likely((i+1) < count)) { 982 rte_prefetch_non_temporal( 983 (void *)pqueue->req_queue[i+1]); 984 } 985 986 ret = check_nb_command_id(user_req, instance); 987 988 if (unlikely(ret == ERR_REQ_PENDING)) { 989 /* Stop checking for completions */ 990 break; 991 } 992 993 /* Return completion code and op handle */ 994 cc[i] = ret; 995 ops[i] = user_req->op; 996 997 CPT_LOG_DP_DEBUG("Request %p Op %p completed with code %d", 998 user_req, user_req->op, ret); 999 1000 MOD_INC(pqueue->deq_head, DEFAULT_CMD_QLEN); 1001 pqueue->pending_count -= 1; 1002 } 1003 1004 nb_completed = i; 1005 1006 for (i = 0; i < nb_completed; i++) { 1007 if (likely((i + 1) < nb_completed)) 1008 rte_prefetch0(ops[i+1]); 1009 1010 ops[i] = otx_cpt_process_response(instance, (void *)ops[i], 1011 cc[i], op_type); 1012 } 1013 1014 return nb_completed; 1015 } 1016 1017 static uint16_t 1018 otx_cpt_dequeue_asym(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops) 1019 { 1020 return otx_cpt_pkt_dequeue(qptr, ops, nb_ops, OP_TYPE_ASYM); 1021 } 1022 1023 static uint16_t 1024 otx_cpt_dequeue_sym(void *qptr, struct rte_crypto_op **ops, uint16_t nb_ops) 1025 { 1026 return otx_cpt_pkt_dequeue(qptr, ops, nb_ops, OP_TYPE_SYM); 1027 } 1028 1029 uintptr_t __rte_hot 1030 otx_crypto_adapter_dequeue(uintptr_t get_work1) 1031 { 1032 const struct cpt_instance *instance; 1033 struct cpt_request_info *req; 1034 struct rte_crypto_op *cop; 1035 uint8_t cc, op_type; 1036 uintptr_t *rsp; 1037 1038 req = (struct cpt_request_info *)get_work1; 1039 instance = req->qp; 1040 rsp = req->op; 1041 cop = (void *)rsp[1]; 1042 op_type = cop->type == RTE_CRYPTO_OP_TYPE_SYMMETRIC ? OP_TYPE_SYM : 1043 OP_TYPE_ASYM; 1044 1045 do { 1046 cc = check_nb_command_id( 1047 req, (struct cpt_instance *)(uintptr_t)instance); 1048 } while (cc == ERR_REQ_PENDING); 1049 1050 cop = otx_cpt_process_response(instance, (void *)req->op, cc, op_type); 1051 1052 return (uintptr_t)(cop); 1053 } 1054 1055 static struct rte_cryptodev_ops cptvf_ops = { 1056 /* Device related operations */ 1057 .dev_configure = otx_cpt_dev_config, 1058 .dev_start = otx_cpt_dev_start, 1059 .dev_stop = otx_cpt_dev_stop, 1060 .dev_close = otx_cpt_dev_close, 1061 .dev_infos_get = otx_cpt_dev_info_get, 1062 1063 .stats_get = NULL, 1064 .stats_reset = NULL, 1065 .queue_pair_setup = otx_cpt_que_pair_setup, 1066 .queue_pair_release = otx_cpt_que_pair_release, 1067 1068 /* Crypto related operations */ 1069 .sym_session_get_size = otx_cpt_get_session_size, 1070 .sym_session_configure = otx_cpt_session_cfg, 1071 .sym_session_clear = otx_cpt_session_clear, 1072 1073 .asym_session_get_size = otx_cpt_asym_session_size_get, 1074 .asym_session_configure = otx_cpt_asym_session_cfg, 1075 .asym_session_clear = otx_cpt_asym_session_clear, 1076 }; 1077 1078 int 1079 otx_cpt_dev_create(struct rte_cryptodev *c_dev) 1080 { 1081 struct rte_pci_device *pdev = RTE_DEV_TO_PCI(c_dev->device); 1082 struct cpt_vf *cptvf = NULL; 1083 void *reg_base; 1084 char dev_name[32]; 1085 int ret; 1086 1087 if (pdev->mem_resource[0].phys_addr == 0ULL) 1088 return -EIO; 1089 1090 /* for secondary processes, we don't initialise any further as primary 1091 * has already done this work. 1092 */ 1093 if (rte_eal_process_type() != RTE_PROC_PRIMARY) 1094 return 0; 1095 1096 cptvf = rte_zmalloc_socket("otx_cryptodev_private_mem", 1097 sizeof(struct cpt_vf), RTE_CACHE_LINE_SIZE, 1098 rte_socket_id()); 1099 1100 if (cptvf == NULL) { 1101 CPT_LOG_ERR("Cannot allocate memory for device private data"); 1102 return -ENOMEM; 1103 } 1104 1105 snprintf(dev_name, 32, "%02x:%02x.%x", 1106 pdev->addr.bus, pdev->addr.devid, pdev->addr.function); 1107 1108 reg_base = pdev->mem_resource[0].addr; 1109 if (!reg_base) { 1110 CPT_LOG_ERR("Failed to map BAR0 of %s", dev_name); 1111 ret = -ENODEV; 1112 goto fail; 1113 } 1114 1115 ret = otx_cpt_hw_init(cptvf, pdev, reg_base, dev_name); 1116 if (ret) { 1117 CPT_LOG_ERR("Failed to init cptvf %s", dev_name); 1118 ret = -EIO; 1119 goto fail; 1120 } 1121 1122 switch (cptvf->vftype) { 1123 case OTX_CPT_VF_TYPE_AE: 1124 /* Set asymmetric cpt feature flags */ 1125 c_dev->feature_flags = RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO | 1126 RTE_CRYPTODEV_FF_HW_ACCELERATED | 1127 RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_QT; 1128 break; 1129 case OTX_CPT_VF_TYPE_SE: 1130 /* Set symmetric cpt feature flags */ 1131 c_dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO | 1132 RTE_CRYPTODEV_FF_HW_ACCELERATED | 1133 RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING | 1134 RTE_CRYPTODEV_FF_IN_PLACE_SGL | 1135 RTE_CRYPTODEV_FF_OOP_LB_IN_LB_OUT | 1136 RTE_CRYPTODEV_FF_OOP_SGL_IN_LB_OUT | 1137 RTE_CRYPTODEV_FF_OOP_SGL_IN_SGL_OUT | 1138 RTE_CRYPTODEV_FF_SYM_SESSIONLESS | 1139 RTE_CRYPTODEV_FF_DIGEST_ENCRYPTED; 1140 break; 1141 default: 1142 /* Feature not supported. Abort */ 1143 CPT_LOG_ERR("VF type not supported by %s", dev_name); 1144 ret = -EIO; 1145 goto deinit_dev; 1146 } 1147 1148 /* Start off timer for mailbox interrupts */ 1149 otx_cpt_periodic_alarm_start(cptvf); 1150 1151 c_dev->dev_ops = &cptvf_ops; 1152 1153 if (c_dev->feature_flags & RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO) { 1154 c_dev->enqueue_burst = otx_cpt_enqueue_sym; 1155 c_dev->dequeue_burst = otx_cpt_dequeue_sym; 1156 } else { 1157 c_dev->enqueue_burst = otx_cpt_enqueue_asym; 1158 c_dev->dequeue_burst = otx_cpt_dequeue_asym; 1159 } 1160 1161 /* Save dev private data */ 1162 c_dev->data->dev_private = cptvf; 1163 1164 return 0; 1165 1166 deinit_dev: 1167 otx_cpt_deinit_device(cptvf); 1168 1169 fail: 1170 if (cptvf) { 1171 /* Free private data allocated */ 1172 rte_free(cptvf); 1173 } 1174 1175 return ret; 1176 } 1177