net/ice/base: add helper for ptype markers match

Add internal helper function ice_ptype_mk_tcam_match for ptype markers
matching in tcam table.

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Junfeng Guo <junfeng.guo@intel.com>

diff --git a/drivers/net/ice/base/ice_ptype_mk.c b/drivers/net/ice/base/ice_ptype_mk.c
index 33623dc..97c41cb 100644 (file)
--- a/drivers/net/ice/base/ice_ptype_mk.c
+++ b/drivers/net/ice/base/ice_ptype_mk.c
@@ -52,3 +52,25 @@ struct ice_ptype_mk_tcam_item *ice_ptype_mk_tcam_table_get(struct ice_hw *hw)
                                        ice_parser_sect_item_get,
                                        _parse_ptype_mk_tcam_item, true);
 }
+
+/**
+ * ice_ptype_mk_tcam_match - match a pattern on a ptype marker tcam table
+ * @table: ptype marker tcam table to search
+ * @pat: pattern to match
+ * @len: length of the pattern
+ */
+struct ice_ptype_mk_tcam_item *
+ice_ptype_mk_tcam_match(struct ice_ptype_mk_tcam_item *table,
+                       u8 *pat, int len)
+{
+       int i;
+
+       for (i = 0; i < ICE_PTYPE_MK_TCAM_TABLE_SIZE; i++) {
+               struct ice_ptype_mk_tcam_item *item = &table[i];
+
+               if (ice_ternary_match(item->key, item->key_inv, pat, len))
+                       return item;
+       }
+
+       return NULL;
+}

diff --git a/drivers/net/ice/base/ice_ptype_mk.h b/drivers/net/ice/base/ice_ptype_mk.h
index c93cd8f..2cd49b1 100644 (file)
--- a/drivers/net/ice/base/ice_ptype_mk.h
+++ b/drivers/net/ice/base/ice_ptype_mk.h
@@ -15,4 +15,7 @@ struct ice_ptype_mk_tcam_item {
 void ice_ptype_mk_tcam_dump(struct ice_hw *hw,
                            struct ice_ptype_mk_tcam_item *item);
 struct ice_ptype_mk_tcam_item *ice_ptype_mk_tcam_table_get(struct ice_hw *hw);
+struct ice_ptype_mk_tcam_item *
+ice_ptype_mk_tcam_match(struct ice_ptype_mk_tcam_item *table,
+                       u8 *pat, int len);
 #endif /* _ICE_PTYPE_MK_H_ */