[dpdk-dev] [PATCH v3 13/20] net/ice/base: add helper functions for parse graph key matching

[Qi Zhang <qi.z.zhang@intel.com>]

Add below two internal helper functions for parse graph key matching
in cam table:

ice_pg_cam_match
ice_pg_nm_cam_match

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Junfeng Guo <junfeng.guo@intel.com>
---
 drivers/net/ice/base/ice_pg_cam.c | 76 +++++++++++++++++++++++++++++++
 drivers/net/ice/base/ice_pg_cam.h |  6 +++
 2 files changed, 82 insertions(+)

diff --git a/drivers/net/ice/base/ice_pg_cam.c b/drivers/net/ice/base/ice_pg_cam.c
index 03484d6a91..fe461ad849 100644
--- a/drivers/net/ice/base/ice_pg_cam.c
+++ b/drivers/net/ice/base/ice_pg_cam.c
@@ -296,3 +296,79 @@ struct ice_pg_nm_cam_item *ice_pg_nm_sp_cam_table_get(struct ice_hw *hw)
 					ice_parser_sect_item_get,
 					_pg_nm_sp_cam_parse_item, false);
 }
+
+static bool _pg_cam_match(struct ice_pg_cam_item *item,
+			  struct ice_pg_cam_key *key)
+{
+	if (!item->key.valid ||
+	    item->key.node_id != key->node_id ||
+	    item->key.flag0 != key->flag0 ||
+	    item->key.flag1 != key->flag1 ||
+	    item->key.flag2 != key->flag2 ||
+	    item->key.flag3 != key->flag3 ||
+	    item->key.boost_idx != key->boost_idx ||
+	    item->key.alu_reg != key->alu_reg ||
+	    item->key.next_proto != key->next_proto)
+		return false;
+
+	return true;
+}
+
+static bool _pg_nm_cam_match(struct ice_pg_nm_cam_item *item,
+			     struct ice_pg_cam_key *key)
+{
+	if (!item->key.valid ||
+	    item->key.node_id != key->node_id ||
+	    item->key.flag0 != key->flag0 ||
+	    item->key.flag1 != key->flag1 ||
+	    item->key.flag2 != key->flag2 ||
+	    item->key.flag3 != key->flag3 ||
+	    item->key.boost_idx != key->boost_idx ||
+	    item->key.alu_reg != key->alu_reg)
+		return false;
+
+	return true;
+}
+
+/**
+ * ice_pg_cam_match - search parse graph cam table by key
+ * @table: parse graph cam table to search
+ * @size: cam table size
+ * @key: search key
+ */
+struct ice_pg_cam_item *ice_pg_cam_match(struct ice_pg_cam_item *table,
+					 int size, struct ice_pg_cam_key *key)
+{
+	int i;
+
+	for (i = 0; i < size; i++) {
+		struct ice_pg_cam_item *item = &table[i];
+
+		if (_pg_cam_match(item, key))
+			return item;
+	}
+
+	return NULL;
+}
+
+/**
+ * ice_pg_nm_cam_match - search parse graph no match cam table by key
+ * @table: parse graph no match cam table to search
+ * @size: cam table size
+ * @key: search key
+ */
+struct ice_pg_nm_cam_item *
+ice_pg_nm_cam_match(struct ice_pg_nm_cam_item *table, int size,
+		    struct ice_pg_cam_key *key)
+{
+	int i;
+
+	for (i = 0; i < size; i++) {
+		struct ice_pg_nm_cam_item *item = &table[i];
+
+		if (_pg_nm_cam_match(item, key))
+			return item;
+	}
+
+	return NULL;
+}
diff --git a/drivers/net/ice/base/ice_pg_cam.h b/drivers/net/ice/base/ice_pg_cam.h
index fcb2e11e54..aeadc20a77 100644
--- a/drivers/net/ice/base/ice_pg_cam.h
+++ b/drivers/net/ice/base/ice_pg_cam.h
@@ -65,4 +65,10 @@ struct ice_pg_cam_item *ice_pg_sp_cam_table_get(struct ice_hw *hw);
 
 struct ice_pg_nm_cam_item *ice_pg_nm_cam_table_get(struct ice_hw *hw);
 struct ice_pg_nm_cam_item *ice_pg_nm_sp_cam_table_get(struct ice_hw *hw);
+
+struct ice_pg_cam_item *ice_pg_cam_match(struct ice_pg_cam_item *table,
+					 int size, struct ice_pg_cam_key *key);
+struct ice_pg_nm_cam_item *
+ice_pg_nm_cam_match(struct ice_pg_nm_cam_item *table, int size,
+		    struct ice_pg_cam_key *key);
 #endif /* _ICE_PG_CAM_H_ */
-- 
2.26.2