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Ip=[192.88.168.50]; Helo=[tx30smr01.am.freescale.net] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR03MB2798 Subject: [dpdk-dev] [PATCH v2 1/2] cryptodev: add api for attach-detach session with queue pair X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" From: Akhil Goyal HW based crypto drivers may only support limited number of sessions per queue pair. This requires support for attaching sessions to specific queue pair. New APIs are introduced to attach/detach a session with/from a particular queue pair. These are optional APIs. Application can call attach API after creating a session and can call detach API before deleting a session. Application needs to check if max_nb_sessions_per_qp > 0, then it should call the attach API. max_nb_sessions_per_qp = 0 means infinite sessions per qp Signed-off-by: Akhil Goyal Acked-by: Fiona Trahe --- lib/librte_cryptodev/rte_cryptodev.c | 47 ++++++++++++++++++++++++++ lib/librte_cryptodev/rte_cryptodev.h | 34 +++++++++++++++++++ lib/librte_cryptodev/rte_cryptodev_pmd.h | 29 ++++++++++++++++ lib/librte_cryptodev/rte_cryptodev_version.map | 2 ++ 4 files changed, 112 insertions(+) diff --git a/lib/librte_cryptodev/rte_cryptodev.c b/lib/librte_cryptodev/rte_cryptodev.c index 0ac23ed..eb72f03 100644 --- a/lib/librte_cryptodev/rte_cryptodev.c +++ b/lib/librte_cryptodev/rte_cryptodev.c @@ -1393,6 +1393,53 @@ rte_cryptodev_sym_session_create(uint8_t dev_id, return sess; } +int +rte_cryptodev_queue_pair_attach_sym_session(uint16_t qp_id, + struct rte_cryptodev_sym_session *sess) +{ + struct rte_cryptodev *dev; + + if (!rte_cryptodev_pmd_is_valid_dev(sess->dev_id)) { + CDEV_LOG_ERR("Invalid dev_id=%d", sess->dev_id); + return -EINVAL; + } + + dev = &rte_crypto_devices[sess->dev_id]; + + /* The API is optional, not returning error if driver do not suuport */ + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->qp_attach_session, 0); + if (dev->dev_ops->qp_attach_session(dev, qp_id, sess->_private)) { + CDEV_LOG_ERR("dev_id %d failed to attach qp: %d with session", + sess->dev_id, qp_id); + return -EPERM; + } + + return 0; +} + +int +rte_cryptodev_queue_pair_detach_sym_session(uint16_t qp_id, + struct rte_cryptodev_sym_session *sess) +{ + struct rte_cryptodev *dev; + + if (!rte_cryptodev_pmd_is_valid_dev(sess->dev_id)) { + CDEV_LOG_ERR("Invalid dev_id=%d", sess->dev_id); + return -EINVAL; + } + + dev = &rte_crypto_devices[sess->dev_id]; + + /* The API is optional, not returning error if driver do not suuport */ + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->qp_detach_session, 0); + if (dev->dev_ops->qp_detach_session(dev, qp_id, sess->_private)) { + CDEV_LOG_ERR("dev_id %d failed to detach qp: %d from session", + sess->dev_id, qp_id); + return -EPERM; + } + + return 0; +} struct rte_cryptodev_sym_session * rte_cryptodev_sym_session_free(uint8_t dev_id, struct rte_cryptodev_sym_session *sess) diff --git a/lib/librte_cryptodev/rte_cryptodev.h b/lib/librte_cryptodev/rte_cryptodev.h index d61a43e..05e5b4e 100644 --- a/lib/librte_cryptodev/rte_cryptodev.h +++ b/lib/librte_cryptodev/rte_cryptodev.h @@ -332,6 +332,10 @@ struct rte_cryptodev_info { struct { unsigned max_nb_sessions; /**< Maximum number of sessions supported by device. */ + unsigned max_nb_sessions_per_qp; + /**< Maximum number of sessions per queue pair. + * Default 0 for infinite sessions + */ } sym; }; @@ -915,6 +919,36 @@ extern struct rte_cryptodev_sym_session * rte_cryptodev_sym_session_free(uint8_t dev_id, struct rte_cryptodev_sym_session *session); +/** + * Attach queue pair with sym session. + * + * @param qp_id Queue pair to which session will be attached. + * @param session Session pointer previously allocated by + * *rte_cryptodev_sym_session_create*. + * + * @return + * - On success, zero. + * - On failure, a negative value. + */ +extern int +rte_cryptodev_queue_pair_attach_sym_session(uint16_t qp_id, + struct rte_cryptodev_sym_session *session); + +/** + * Detach queue pair with sym session. + * + * @param qp_id Queue pair to which session is attached. + * @param session Session pointer previously allocated by + * *rte_cryptodev_sym_session_create*. + * + * @return + * - On success, zero. + * - On failure, a negative value. + */ +extern int +rte_cryptodev_queue_pair_detach_sym_session(uint16_t qp_id, + struct rte_cryptodev_sym_session *session); + #ifdef __cplusplus } diff --git a/lib/librte_cryptodev/rte_cryptodev_pmd.h b/lib/librte_cryptodev/rte_cryptodev_pmd.h index 1a417e2..df92817 100644 --- a/lib/librte_cryptodev/rte_cryptodev_pmd.h +++ b/lib/librte_cryptodev/rte_cryptodev_pmd.h @@ -381,6 +381,31 @@ typedef void * (*cryptodev_sym_configure_session_t)(struct rte_cryptodev *dev, typedef void (*cryptodev_sym_free_session_t)(struct rte_cryptodev *dev, void *session_private); +/** + * Optional API for drivers to attach sessions with queue pair. + * @param dev Crypto device pointer + * @param qp_id queue pair id for attaching session + * @param priv_sess Pointer to cryptodev's private session structure + * @return + * - Return 0 on success + */ +typedef int (*cryptodev_sym_queue_pair_attach_session_t)( + struct rte_cryptodev *dev, + uint16_t qp_id, + void *session_private); + +/** + * Optional API for drivers to detach sessions from queue pair. + * @param dev Crypto device pointer + * @param qp_id queue pair id for detaching session + * @param priv_sess Pointer to cryptodev's private session structure + * @return + * - Return 0 on success + */ +typedef int (*cryptodev_sym_queue_pair_detach_session_t)( + struct rte_cryptodev *dev, + uint16_t qp_id, + void *session_private); /** Crypto device operations function pointer table */ struct rte_cryptodev_ops { @@ -415,6 +440,10 @@ struct rte_cryptodev_ops { /**< Configure a Crypto session. */ cryptodev_sym_free_session_t session_clear; /**< Clear a Crypto sessions private data. */ + cryptodev_sym_queue_pair_attach_session_t qp_attach_session; + /**< Attach queue pair with session. */ + cryptodev_sym_queue_pair_attach_session_t qp_detach_session; + /**< Detach queue pair from session. */ }; diff --git a/lib/librte_cryptodev/rte_cryptodev_version.map b/lib/librte_cryptodev/rte_cryptodev_version.map index 831a15c..9ac510e 100644 --- a/lib/librte_cryptodev/rte_cryptodev_version.map +++ b/lib/librte_cryptodev/rte_cryptodev_version.map @@ -70,5 +70,7 @@ DPDK_17.05 { rte_cryptodev_get_auth_algo_enum; rte_cryptodev_get_cipher_algo_enum; + rte_cryptodev_queue_pair_attach_sym_session; + rte_cryptodev_queue_pair_detach_sym_session; } DPDK_17.02;