1*5566a3e3SBruce Richardson /* SPDX-License-Identifier: BSD-3-Clause 2*5566a3e3SBruce Richardson * Copyright(c) 2016-2017 Intel Corporation 394b0ad8eSDeclan Doherty */ 494b0ad8eSDeclan Doherty 594b0ad8eSDeclan Doherty #include <rte_common.h> 694b0ad8eSDeclan Doherty #include <rte_cryptodev_pmd.h> 7d4a586d2SJianfeng Tan #include <rte_bus_vdev.h> 894b0ad8eSDeclan Doherty #include <rte_malloc.h> 994b0ad8eSDeclan Doherty 1094b0ad8eSDeclan Doherty #include "null_crypto_pmd_private.h" 1194b0ad8eSDeclan Doherty 127a364faeSSlawomir Mrozowicz static uint8_t cryptodev_driver_id; 137a364faeSSlawomir Mrozowicz 1494b0ad8eSDeclan Doherty /** verify and set session parameters */ 1594b0ad8eSDeclan Doherty int 1694b0ad8eSDeclan Doherty null_crypto_set_session_parameters( 1794b0ad8eSDeclan Doherty struct null_crypto_session *sess __rte_unused, 1894b0ad8eSDeclan Doherty const struct rte_crypto_sym_xform *xform) 1994b0ad8eSDeclan Doherty { 2094b0ad8eSDeclan Doherty if (xform == NULL) { 2127391b53SPablo de Lara return -EINVAL; 2294b0ad8eSDeclan Doherty } else if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH && 2394b0ad8eSDeclan Doherty xform->next == NULL) { 2494b0ad8eSDeclan Doherty /* Authentication Only */ 2594b0ad8eSDeclan Doherty if (xform->auth.algo == RTE_CRYPTO_AUTH_NULL) 2694b0ad8eSDeclan Doherty return 0; 2794b0ad8eSDeclan Doherty } else if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH && 2894b0ad8eSDeclan Doherty xform->next->type == RTE_CRYPTO_SYM_XFORM_CIPHER) { 2994b0ad8eSDeclan Doherty /* Authentication then Cipher */ 3094b0ad8eSDeclan Doherty if (xform->auth.algo == RTE_CRYPTO_AUTH_NULL && 3194b0ad8eSDeclan Doherty xform->next->cipher.algo == RTE_CRYPTO_CIPHER_NULL) 3294b0ad8eSDeclan Doherty return 0; 3394b0ad8eSDeclan Doherty } else if (xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER && 3494b0ad8eSDeclan Doherty xform->next == NULL) { 3594b0ad8eSDeclan Doherty /* Cipher Only */ 3694b0ad8eSDeclan Doherty if (xform->cipher.algo == RTE_CRYPTO_CIPHER_NULL) 3794b0ad8eSDeclan Doherty return 0; 3894b0ad8eSDeclan Doherty } else if (xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER && 3994b0ad8eSDeclan Doherty xform->next->type == RTE_CRYPTO_SYM_XFORM_AUTH) { 4094b0ad8eSDeclan Doherty /* Cipher then Authentication */ 4194b0ad8eSDeclan Doherty if (xform->cipher.algo == RTE_CRYPTO_CIPHER_NULL && 4294b0ad8eSDeclan Doherty xform->next->auth.algo == RTE_CRYPTO_AUTH_NULL) 4394b0ad8eSDeclan Doherty return 0; 4494b0ad8eSDeclan Doherty } 4594b0ad8eSDeclan Doherty 4627391b53SPablo de Lara return -ENOTSUP; 4794b0ad8eSDeclan Doherty } 4894b0ad8eSDeclan Doherty 4994b0ad8eSDeclan Doherty /** Process crypto operation for mbuf */ 5094b0ad8eSDeclan Doherty static int 5194b0ad8eSDeclan Doherty process_op(const struct null_crypto_qp *qp, struct rte_crypto_op *op, 5294b0ad8eSDeclan Doherty struct null_crypto_session *sess __rte_unused) 5394b0ad8eSDeclan Doherty { 5494b0ad8eSDeclan Doherty /* set status as successful by default */ 5594b0ad8eSDeclan Doherty op->status = RTE_CRYPTO_OP_STATUS_SUCCESS; 5694b0ad8eSDeclan Doherty 57b3bbd9e5SSlawomir Mrozowicz /* Free session if a session-less crypto op. */ 58b3bbd9e5SSlawomir Mrozowicz if (op->sess_type == RTE_CRYPTO_OP_SESSIONLESS) { 59b3bbd9e5SSlawomir Mrozowicz memset(op->sym->session, 0, 60b3bbd9e5SSlawomir Mrozowicz sizeof(struct null_crypto_session)); 61b3bbd9e5SSlawomir Mrozowicz rte_cryptodev_sym_session_free(op->sym->session); 62b3bbd9e5SSlawomir Mrozowicz op->sym->session = NULL; 63b3bbd9e5SSlawomir Mrozowicz } 64b3bbd9e5SSlawomir Mrozowicz 6594b0ad8eSDeclan Doherty /* 6694b0ad8eSDeclan Doherty * if crypto session and operation are valid just enqueue the packet 6794b0ad8eSDeclan Doherty * in the processed ring 6894b0ad8eSDeclan Doherty */ 6994b0ad8eSDeclan Doherty return rte_ring_enqueue(qp->processed_pkts, (void *)op); 7094b0ad8eSDeclan Doherty } 7194b0ad8eSDeclan Doherty 7294b0ad8eSDeclan Doherty static struct null_crypto_session * 735209df0dSPablo de Lara get_session(struct null_crypto_qp *qp, struct rte_crypto_op *op) 7494b0ad8eSDeclan Doherty { 75b3bbd9e5SSlawomir Mrozowicz struct null_crypto_session *sess = NULL; 765209df0dSPablo de Lara struct rte_crypto_sym_op *sym_op = op->sym; 7794b0ad8eSDeclan Doherty 785209df0dSPablo de Lara if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION) { 79b3bbd9e5SSlawomir Mrozowicz if (likely(sym_op->session != NULL)) 80b3bbd9e5SSlawomir Mrozowicz sess = (struct null_crypto_session *) 81b3bbd9e5SSlawomir Mrozowicz get_session_private_data( 82b3bbd9e5SSlawomir Mrozowicz sym_op->session, cryptodev_driver_id); 8394b0ad8eSDeclan Doherty } else { 84b3bbd9e5SSlawomir Mrozowicz void *_sess = NULL; 85b3bbd9e5SSlawomir Mrozowicz void *_sess_private_data = NULL; 8694b0ad8eSDeclan Doherty 87b3bbd9e5SSlawomir Mrozowicz if (rte_mempool_get(qp->sess_mp, (void **)&_sess)) 8894b0ad8eSDeclan Doherty return NULL; 8994b0ad8eSDeclan Doherty 90b3bbd9e5SSlawomir Mrozowicz if (rte_mempool_get(qp->sess_mp, (void **)&_sess_private_data)) 9194b0ad8eSDeclan Doherty return NULL; 92b3bbd9e5SSlawomir Mrozowicz 93b3bbd9e5SSlawomir Mrozowicz sess = (struct null_crypto_session *)_sess_private_data; 94b3bbd9e5SSlawomir Mrozowicz 95b3bbd9e5SSlawomir Mrozowicz if (unlikely(null_crypto_set_session_parameters(sess, 96b3bbd9e5SSlawomir Mrozowicz sym_op->xform) != 0)) { 97b3bbd9e5SSlawomir Mrozowicz rte_mempool_put(qp->sess_mp, _sess); 98b3bbd9e5SSlawomir Mrozowicz rte_mempool_put(qp->sess_mp, _sess_private_data); 99b3bbd9e5SSlawomir Mrozowicz sess = NULL; 100b3bbd9e5SSlawomir Mrozowicz } 101b3bbd9e5SSlawomir Mrozowicz sym_op->session = (struct rte_cryptodev_sym_session *)_sess; 102b3bbd9e5SSlawomir Mrozowicz set_session_private_data(sym_op->session, cryptodev_driver_id, 103b3bbd9e5SSlawomir Mrozowicz _sess_private_data); 10494b0ad8eSDeclan Doherty } 10594b0ad8eSDeclan Doherty 10694b0ad8eSDeclan Doherty return sess; 10794b0ad8eSDeclan Doherty } 10894b0ad8eSDeclan Doherty 10994b0ad8eSDeclan Doherty /** Enqueue burst */ 11094b0ad8eSDeclan Doherty static uint16_t 11194b0ad8eSDeclan Doherty null_crypto_pmd_enqueue_burst(void *queue_pair, struct rte_crypto_op **ops, 11294b0ad8eSDeclan Doherty uint16_t nb_ops) 11394b0ad8eSDeclan Doherty { 11494b0ad8eSDeclan Doherty struct null_crypto_session *sess; 11594b0ad8eSDeclan Doherty struct null_crypto_qp *qp = queue_pair; 11694b0ad8eSDeclan Doherty 11794b0ad8eSDeclan Doherty int i, retval; 11894b0ad8eSDeclan Doherty 11994b0ad8eSDeclan Doherty for (i = 0; i < nb_ops; i++) { 1205209df0dSPablo de Lara sess = get_session(qp, ops[i]); 12194b0ad8eSDeclan Doherty if (unlikely(sess == NULL)) 12294b0ad8eSDeclan Doherty goto enqueue_err; 12394b0ad8eSDeclan Doherty 12494b0ad8eSDeclan Doherty retval = process_op(qp, ops[i], sess); 12594b0ad8eSDeclan Doherty if (unlikely(retval < 0)) 12694b0ad8eSDeclan Doherty goto enqueue_err; 12794b0ad8eSDeclan Doherty } 12894b0ad8eSDeclan Doherty 12994b0ad8eSDeclan Doherty qp->qp_stats.enqueued_count += i; 13094b0ad8eSDeclan Doherty return i; 13194b0ad8eSDeclan Doherty 13294b0ad8eSDeclan Doherty enqueue_err: 13394b0ad8eSDeclan Doherty if (ops[i]) 13494b0ad8eSDeclan Doherty ops[i]->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS; 13594b0ad8eSDeclan Doherty 13694b0ad8eSDeclan Doherty qp->qp_stats.enqueue_err_count++; 13794b0ad8eSDeclan Doherty return i; 13894b0ad8eSDeclan Doherty } 13994b0ad8eSDeclan Doherty 14094b0ad8eSDeclan Doherty /** Dequeue burst */ 14194b0ad8eSDeclan Doherty static uint16_t 14294b0ad8eSDeclan Doherty null_crypto_pmd_dequeue_burst(void *queue_pair, struct rte_crypto_op **ops, 14394b0ad8eSDeclan Doherty uint16_t nb_ops) 14494b0ad8eSDeclan Doherty { 14594b0ad8eSDeclan Doherty struct null_crypto_qp *qp = queue_pair; 14694b0ad8eSDeclan Doherty 14794b0ad8eSDeclan Doherty unsigned nb_dequeued; 14894b0ad8eSDeclan Doherty 14994b0ad8eSDeclan Doherty nb_dequeued = rte_ring_dequeue_burst(qp->processed_pkts, 150ecaed092SBruce Richardson (void **)ops, nb_ops, NULL); 15194b0ad8eSDeclan Doherty qp->qp_stats.dequeued_count += nb_dequeued; 15294b0ad8eSDeclan Doherty 15394b0ad8eSDeclan Doherty return nb_dequeued; 15494b0ad8eSDeclan Doherty } 15594b0ad8eSDeclan Doherty 15694b0ad8eSDeclan Doherty /** Create crypto device */ 15794b0ad8eSDeclan Doherty static int 158168b9e76SPablo de Lara cryptodev_null_create(const char *name, 159917ac9c4SPablo de Lara struct rte_vdev_device *vdev, 160f2f020d2SDeclan Doherty struct rte_cryptodev_pmd_init_params *init_params) 16194b0ad8eSDeclan Doherty { 16294b0ad8eSDeclan Doherty struct rte_cryptodev *dev; 16394b0ad8eSDeclan Doherty struct null_crypto_private *internals; 16494b0ad8eSDeclan Doherty 165f2f020d2SDeclan Doherty dev = rte_cryptodev_pmd_create(name, &vdev->device, init_params); 16694b0ad8eSDeclan Doherty if (dev == NULL) { 16794b0ad8eSDeclan Doherty NULL_CRYPTO_LOG_ERR("failed to create cryptodev vdev"); 168f2f020d2SDeclan Doherty return -EFAULT; 16994b0ad8eSDeclan Doherty } 17094b0ad8eSDeclan Doherty 1717a364faeSSlawomir Mrozowicz dev->driver_id = cryptodev_driver_id; 17294b0ad8eSDeclan Doherty dev->dev_ops = null_crypto_pmd_ops; 17394b0ad8eSDeclan Doherty 17494b0ad8eSDeclan Doherty /* register rx/tx burst functions for data path */ 17594b0ad8eSDeclan Doherty dev->dequeue_burst = null_crypto_pmd_dequeue_burst; 17694b0ad8eSDeclan Doherty dev->enqueue_burst = null_crypto_pmd_enqueue_burst; 17794b0ad8eSDeclan Doherty 17826c2e4adSDeclan Doherty dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO | 1792d03ec6aSTomasz Kulasek RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING | 1802d03ec6aSTomasz Kulasek RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER; 18126c2e4adSDeclan Doherty 18294b0ad8eSDeclan Doherty internals = dev->data->dev_private; 18394b0ad8eSDeclan Doherty 18494b0ad8eSDeclan Doherty internals->max_nb_qpairs = init_params->max_nb_queue_pairs; 18594b0ad8eSDeclan Doherty internals->max_nb_sessions = init_params->max_nb_sessions; 18694b0ad8eSDeclan Doherty 18794b0ad8eSDeclan Doherty return 0; 18894b0ad8eSDeclan Doherty } 18994b0ad8eSDeclan Doherty 19094b0ad8eSDeclan Doherty /** Initialise null crypto device */ 19194b0ad8eSDeclan Doherty static int 1925d2aa461SJan Blunck cryptodev_null_probe(struct rte_vdev_device *dev) 19394b0ad8eSDeclan Doherty { 194f2f020d2SDeclan Doherty struct rte_cryptodev_pmd_init_params init_params = { 195f2f020d2SDeclan Doherty "", 196f2f020d2SDeclan Doherty sizeof(struct null_crypto_private), 197d803b443SFan Zhang rte_socket_id(), 198f2f020d2SDeclan Doherty RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS, 199f2f020d2SDeclan Doherty RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_SESSIONS 20094b0ad8eSDeclan Doherty }; 201f2f020d2SDeclan Doherty const char *name, *args; 202f2f020d2SDeclan Doherty int retval; 20394b0ad8eSDeclan Doherty 2047e214771SPablo de Lara name = rte_vdev_device_name(dev); 2057e214771SPablo de Lara if (name == NULL) 2067e214771SPablo de Lara return -EINVAL; 20794b0ad8eSDeclan Doherty 208f2f020d2SDeclan Doherty args = rte_vdev_device_args(dev); 209f2f020d2SDeclan Doherty 210f2f020d2SDeclan Doherty retval = rte_cryptodev_pmd_parse_input_args(&init_params, args); 211f2f020d2SDeclan Doherty if (retval) { 212f2f020d2SDeclan Doherty RTE_LOG(ERR, PMD, 213f2f020d2SDeclan Doherty "Failed to parse initialisation arguments[%s]\n", args); 214f2f020d2SDeclan Doherty return -EINVAL; 215f2f020d2SDeclan Doherty } 21694b0ad8eSDeclan Doherty 217917ac9c4SPablo de Lara return cryptodev_null_create(name, dev, &init_params); 21894b0ad8eSDeclan Doherty } 21994b0ad8eSDeclan Doherty 22094b0ad8eSDeclan Doherty static int 221f2f020d2SDeclan Doherty cryptodev_null_remove_dev(struct rte_vdev_device *vdev) 22294b0ad8eSDeclan Doherty { 223f2f020d2SDeclan Doherty struct rte_cryptodev *cryptodev; 224f2f020d2SDeclan Doherty const char *name; 225f2f020d2SDeclan Doherty 226f2f020d2SDeclan Doherty name = rte_vdev_device_name(vdev); 22794b0ad8eSDeclan Doherty if (name == NULL) 22894b0ad8eSDeclan Doherty return -EINVAL; 22994b0ad8eSDeclan Doherty 230f2f020d2SDeclan Doherty cryptodev = rte_cryptodev_pmd_get_named_dev(name); 231f2f020d2SDeclan Doherty if (cryptodev == NULL) 232f2f020d2SDeclan Doherty return -ENODEV; 23394b0ad8eSDeclan Doherty 234f2f020d2SDeclan Doherty return rte_cryptodev_pmd_destroy(cryptodev); 2355d2aa461SJan Blunck } 2365d2aa461SJan Blunck 237fe363dd4SJan Viktorin static struct rte_vdev_driver cryptodev_null_pmd_drv = { 23850a3345fSShreyansh Jain .probe = cryptodev_null_probe, 2395d2aa461SJan Blunck .remove = cryptodev_null_remove_dev, 24094b0ad8eSDeclan Doherty }; 24194b0ad8eSDeclan Doherty 242effd3b9fSPablo de Lara static struct cryptodev_driver null_crypto_drv; 243effd3b9fSPablo de Lara 24401f19227SShreyansh Jain RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_NULL_PMD, cryptodev_null_pmd_drv); 245479c4af3SJan Blunck RTE_PMD_REGISTER_ALIAS(CRYPTODEV_NAME_NULL_PMD, cryptodev_null_pmd); 24601f19227SShreyansh Jain RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_NULL_PMD, 24765eca099SPablo de Lara "max_nb_queue_pairs=<int> " 24865eca099SPablo de Lara "max_nb_sessions=<int> " 24965eca099SPablo de Lara "socket_id=<int>"); 250effd3b9fSPablo de Lara RTE_PMD_REGISTER_CRYPTO_DRIVER(null_crypto_drv, cryptodev_null_pmd_drv, 251effd3b9fSPablo de Lara cryptodev_driver_id); 252