[dpdk-dev] [PATCH v5 16/16] cryptodev: check if symmetric sessions are supported

[Pablo de Lara]

Since asymmetric functionality will be implemented soon,
not all PMDs must support symmetric sessions.
Therefore, a check is added if a device does not implement
the symmetric functions, meaning that the device does not
support symmetric operations.

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch at intel.com>
Acked-by: Akhil Goyal <akhil.goyal at nxp.com>
---
 lib/librte_cryptodev/rte_cryptodev.c | 4 ++++
 lib/librte_cryptodev/rte_cryptodev.h | 4 +++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/lib/librte_cryptodev/rte_cryptodev.c b/lib/librte_cryptodev/rte_cryptodev.c
index 3860b0b23..26d43fd3d 100644
--- a/lib/librte_cryptodev/rte_cryptodev.c
+++ b/lib/librte_cryptodev/rte_cryptodev.c
@@ -1063,6 +1063,8 @@ rte_cryptodev_sym_session_init(uint8_t dev_id,
 
 	index = dev->driver_id;
 
+	RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->sym_session_configure, -ENOTSUP);
+
 	if (sess->sess_private_data[index] == NULL) {
 		ret = dev->dev_ops->sym_session_configure(dev, xforms,
 							sess, mp);
@@ -1107,6 +1109,8 @@ rte_cryptodev_sym_session_clear(uint8_t dev_id,
 	if (dev == NULL || sess == NULL)
 		return -EINVAL;
 
+	RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->sym_session_clear, -ENOTSUP);
+
 	dev->dev_ops->sym_session_clear(dev, sess);
 
 	return 0;
diff --git a/lib/librte_cryptodev/rte_cryptodev.h b/lib/librte_cryptodev/rte_cryptodev.h
index 2049a745d..27dc7a297 100644
--- a/lib/librte_cryptodev/rte_cryptodev.h
+++ b/lib/librte_cryptodev/rte_cryptodev.h
@@ -888,7 +888,8 @@ rte_cryptodev_sym_session_free(struct rte_cryptodev_sym_session *sess);
  * @return
  *  - On success, zero.
  *  - -EINVAL if input parameters are invalid.
- *  - -ENOTSUP if crypto device does not support the crypto transform.
+ *  - -ENOTSUP if crypto device does not support the crypto transform or
+ *    does not support symmetric operations.
  *  - -ENOMEM if the private session could not be allocated.
  */
 int
@@ -909,6 +910,7 @@ rte_cryptodev_sym_session_init(uint8_t dev_id,
  * @return
  *  - 0 if successful.
  *  - -EINVAL if device is invalid or session is NULL.
+ *  - -ENOTSUP if crypto device does not support symmetric operations.
  */
 int
 rte_cryptodev_sym_session_clear(uint8_t dev_id,
-- 
2.14.4