[PATCH 23/45] net/dpaa2: add minimum key size support

[Prashant Gupta]

From: Hemant Agrawal <hemant.agrawal at nxp.com>

The default size for a QoS key is 24 bytes. If the key size is
smaller than the maximum, use the default (minimum) key size
instead of always returning the maximum size (56 bytes). This
allows smaller flow tables to be used when the extracted key
fits within the default size.

Signed-off-by: Hemant Agrawal <hemant.agrawal at nxp.com>
---
 drivers/net/dpaa2/dpaa2_flow.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/net/dpaa2/dpaa2_flow.c b/drivers/net/dpaa2/dpaa2_flow.c
index 45660df31a..2662c358e4 100644
--- a/drivers/net/dpaa2/dpaa2_flow.c
+++ b/drivers/net/dpaa2/dpaa2_flow.c
@@ -26,8 +26,11 @@
 static char *dpaa2_flow_control_log;
 static int dpaa2_sp_loaded = -1;
 
+/* Default size of a key */
+#define DPNI_DEFAULT_KEY_SIZE 24
+
 enum dpaa2_flow_entry_size {
-	DPAA2_FLOW_ENTRY_MIN_SIZE = (DPNI_MAX_KEY_SIZE / 2),
+	DPAA2_FLOW_ENTRY_MIN_SIZE = DPNI_DEFAULT_KEY_SIZE,
 	DPAA2_FLOW_ENTRY_MAX_SIZE = DPNI_MAX_KEY_SIZE
 };
 
@@ -4532,8 +4535,7 @@ dpaa2_flow_entry_size(uint16_t key_max_size)
 	if (key_max_size > DPAA2_FLOW_ENTRY_MIN_SIZE)
 		return DPAA2_FLOW_ENTRY_MAX_SIZE;
 
-	/* Current MC only support fixed entry size(56)*/
-	return DPAA2_FLOW_ENTRY_MAX_SIZE;
+	return DPAA2_FLOW_ENTRY_MIN_SIZE;
 }
 
 static inline int
-- 
2.43.0