[dpdk-dev] [PATCH 1/3] lib/librte_security: added get size

[Radu Nicolau <radu.nicolau@intel.com>]

Signed-off-by: Radu Nicolau <radu.nicolau@intel.com>
---
 lib/librte_security/rte_security.c           |  7 +++++++
 lib/librte_security/rte_security.h           | 12 ++++++++++++
 lib/librte_security/rte_security_driver.h    | 14 ++++++++++++++
 lib/librte_security/rte_security_version.map |  1 +
 4 files changed, 34 insertions(+)

diff --git a/lib/librte_security/rte_security.c b/lib/librte_security/rte_security.c
index 1227fca..56f2345 100644
--- a/lib/librte_security/rte_security.c
+++ b/lib/librte_security/rte_security.c
@@ -70,6 +70,13 @@ rte_security_session_update(struct rte_security_ctx *instance,
 	return instance->ops->session_update(instance->device, sess, conf);
 }
 
+unsigned int
+rte_security_session_get_size(struct rte_security_ctx *instance)
+{
+	RTE_FUNC_PTR_OR_ERR_RET(*instance->ops->session_get_size, 0);
+	return instance->ops->session_get_size(instance->device);
+}
+
 int
 rte_security_session_stats_get(struct rte_security_ctx *instance,
 			       struct rte_security_session *sess,
diff --git a/lib/librte_security/rte_security.h b/lib/librte_security/rte_security.h
index 653929b..2c5429f 100644
--- a/lib/librte_security/rte_security.h
+++ b/lib/librte_security/rte_security.h
@@ -312,6 +312,18 @@ rte_security_session_update(struct rte_security_ctx *instance,
 			    struct rte_security_session_conf *conf);
 
 /**
+ * Get the size of the security session data for a device.
+ *
+ * @param   instance	security instance.
+ *
+ * @return
+ *   - Size of the private data, if successful
+ *   - 0 if device is invalid or does not support the operation.
+ */
+unsigned int
+rte_security_session_get_size(struct rte_security_ctx *instance);
+
+/**
  * Free security session header and the session private data and
  * return it to its original mempool.
  *
diff --git a/lib/librte_security/rte_security_driver.h b/lib/librte_security/rte_security_driver.h
index 997fbe7..3839d45 100644
--- a/lib/librte_security/rte_security_driver.h
+++ b/lib/librte_security/rte_security_driver.h
@@ -91,6 +91,18 @@ typedef int (*security_session_destroy_t)(void *device,
 typedef int (*security_session_update_t)(void *device,
 		struct rte_security_session *sess,
 		struct rte_security_session_conf *conf);
+
+/**
+ * Get the size of a security session
+ *
+ * @param	device		Crypto/eth device pointer
+ *
+ * @return
+ *  - On success returns the size of the session structure for device
+ *  - On failure returns 0
+ */
+typedef int (*security_session_get_size)(void *device);
+
 /**
  * Get stats from the PMD.
  *
@@ -139,6 +151,8 @@ struct rte_security_ops {
 	/**< Configure a security session. */
 	security_session_update_t session_update;
 	/**< Update a security session. */
+	security_session_get_size session_get_size;
+	/**< Return size of security session. */
 	security_session_stats_get_t session_stats_get;
 	/**< Get security session statistics. */
 	security_session_destroy_t session_destroy;
diff --git a/lib/librte_security/rte_security_version.map b/lib/librte_security/rte_security_version.map
index e12c04b..2f74568 100644
--- a/lib/librte_security/rte_security_version.map
+++ b/lib/librte_security/rte_security_version.map
@@ -6,6 +6,7 @@ EXPERIMENTAL {
 	rte_security_capability_get;
 	rte_security_session_create;
 	rte_security_session_destroy;
+	rte_security_session_get_size;
 	rte_security_session_stats_get;
 	rte_security_session_update;
 	rte_security_set_pkt_metadata;
-- 
2.7.5