X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_cryptodev%2Frte_cryptodev.h;h=ca7cbdd8d492703f4e22387ee5923802dc19545d;hb=ce8af1a4398da8d2404a35fd8a5b5ab1dc05f41d;hp=d1e7c2fc7addd6d7156663c5de18c84c7dd95534;hpb=78543080471100eb66dcead1f65214c7809eec58;p=dpdk.git

diff --git a/lib/librte_cryptodev/rte_cryptodev.h b/lib/librte_cryptodev/rte_cryptodev.h
index d1e7c2fc7a..ca7cbdd8d4 100644
--- a/lib/librte_cryptodev/rte_cryptodev.h
+++ b/lib/librte_cryptodev/rte_cryptodev.h
@@ -525,15 +525,13 @@ struct rte_cryptodev_config {
  *
  * @param	dev_id		The identifier of the device to configure.
  * @param	config		The crypto device configuration structure.
- * @param	session_pool	Pointer to device session mempool
  *
  * @return
  *   - 0: Success, device configured.
  *   - <0: Error code returned by the driver configuration function.
  */
 extern int
-rte_cryptodev_configure(uint8_t dev_id, struct rte_cryptodev_config *config,
-		struct rte_mempool *session_pool);
+rte_cryptodev_configure(uint8_t dev_id, struct rte_cryptodev_config *config);
 
 /**
  * Start an device.
@@ -592,6 +590,8 @@ rte_cryptodev_close(uint8_t dev_id);
  *				*SOCKET_ID_ANY* if there is no NUMA constraint
  *				for the DMA memory allocated for the receive
  *				queue pair.
+ * @param	session_pool	Pointer to device session mempool, used
+ *				for session-less operations.
  *
  * @return
  *   - 0: Success, queue pair correctly set up.
@@ -599,7 +599,8 @@ rte_cryptodev_close(uint8_t dev_id);
  */
 extern int
 rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
-		const struct rte_cryptodev_qp_conf *qp_conf, int socket_id);
+		const struct rte_cryptodev_qp_conf *qp_conf, int socket_id,
+		struct rte_mempool *session_pool);
 
 /**
  * Start a specified queue pair of a device. It is used
@@ -883,58 +884,80 @@ rte_cryptodev_enqueue_burst(uint8_t dev_id, uint16_t qp_id,
 /** Cryptodev symmetric crypto session */
 struct rte_cryptodev_sym_session {
 	RTE_STD_C11
-	struct {
-		uint8_t driver_id;
-		/** Crypto driver identifier session created on */
-		struct rte_mempool *mp;
-		/**< Mempool session allocated from */
-	} __rte_aligned(8);
-	/**< Public symmetric session details */
-
-	__extension__ char _private[0];
+	__extension__ void *sess_private_data[0];
 	/**< Private session material */
 };
 
 
 /**
- * Initialise a session for symmetric cryptographic operations.
+ * Create symmetric crypto session header (generic with no private data)
  *
- * This function is used by the client to initialize immutable
- * parameters of symmetric cryptographic operation.
- * To perform the operation the rte_cryptodev_enqueue_burst function is
- * used.  Each mbuf should contain a reference to the session
- * pointer returned from this function contained within it's crypto_op if a
- * session-based operation is being provisioned. Memory to contain the session
- * information is allocated from within mempool managed by the cryptodev.
+ * @param   mempool    Symmetric session mempool to allocate session
+ *                     objects from
+ * @return
+ *  - On success return pointer to sym-session
+ *  - On failure returns NULL
+ */
+struct rte_cryptodev_sym_session *
+rte_cryptodev_sym_session_create(struct rte_mempool *mempool);
+
+/**
+ * Frees symmetric crypto session header, after checking that all
+ * the device private data has been freed, returning it
+ * to its original mempool.
  *
- * The rte_cryptodev_session_free must be called to free allocated
- * memory when the session is no longer required.
+ * @param   sess     Session header to be freed.
  *
- * @param	dev_id		The device identifier.
- * @param	xform		Crypto transform chain.
+ * @return
+ *  - 0 if successful.
+ *  - -EINVAL if session is NULL.
+ *  - -EBUSY if not all device private data has been freed.
+ */
+int
+rte_cryptodev_sym_session_free(struct rte_cryptodev_sym_session *sess);
 
+/**
+ * Fill out private data for the device id, based on its device type.
+ *
+ * @param   dev_id   ID of device that we want the session to be used on
+ * @param   sess     Session where the private data will be attached to
+ * @param   xforms   Symmetric crypto transform operations to apply on flow
+ *                   processed with this session
+ * @param   mempool  Mempool where the private data is allocated.
  *
  * @return
- *  Pointer to the created session or NULL
+ *  - On success, zero.
+ *  - On failure, a negative value.
  */
-extern struct rte_cryptodev_sym_session *
-rte_cryptodev_sym_session_create(uint8_t dev_id,
-		struct rte_crypto_sym_xform *xform);
+int
+rte_cryptodev_sym_session_init(uint8_t dev_id,
+			struct rte_cryptodev_sym_session *sess,
+			struct rte_crypto_sym_xform *xforms,
+			struct rte_mempool *mempool);
 
 /**
- * Free the memory associated with a previously allocated session.
+ * Frees private data for the device id, based on its device type,
+ * returning it to its mempool.
  *
- * @param	dev_id		The device identifier.
- * @param	session		Session pointer previously allocated by
- *				*rte_cryptodev_sym_session_create*.
+ * @param   dev_id   ID of device that uses the session.
+ * @param   sess     Session containing the reference to the private data
  *
  * @return
- *   NULL on successful freeing of session.
- *   Session pointer on failure to free session.
+ *  - 0 if successful.
+ *  - -EINVAL if device is invalid or session is NULL.
  */
-extern struct rte_cryptodev_sym_session *
-rte_cryptodev_sym_session_free(uint8_t dev_id,
-		struct rte_cryptodev_sym_session *session);
+int
+rte_cryptodev_sym_session_clear(uint8_t dev_id,
+			struct rte_cryptodev_sym_session *sess);
+
+/**
+ * Get the size of the header session, for all registered drivers.
+ *
+ * @return
+ *   Size of the header session.
+ */
+unsigned int
+rte_cryptodev_get_header_session_size(void);
 
 /**
  * Get the size of the private session data for a device.