acl: introduce a macro for bitmask conversion

[dpdk.git] / lib / librte_acl / rte_acl.h

diff --git a/lib/librte_acl/rte_acl.h b/lib/librte_acl/rte_acl.h
index 3a93730..bd8f892 100644 (file)
--- a/lib/librte_acl/rte_acl.h
+++ b/lib/librte_acl/rte_acl.h
@@ -115,13 +115,16 @@ struct rte_acl_field {
 
 enum {
        RTE_ACL_TYPE_SHIFT = 29,
-       RTE_ACL_MAX_INDEX = LEN2MASK(RTE_ACL_TYPE_SHIFT),
+       RTE_ACL_MAX_INDEX = RTE_LEN2MASK(RTE_ACL_TYPE_SHIFT, uint32_t),
        RTE_ACL_MAX_PRIORITY = RTE_ACL_MAX_INDEX,
        RTE_ACL_MIN_PRIORITY = 0,
 };
 
 #define        RTE_ACL_INVALID_USERDATA        0
 
+#define        RTE_ACL_MASKLEN_TO_BITMASK(v, s)        \
+((v) == 0 ? (v) : (typeof(v))((uint64_t)-1 << ((s) * CHAR_BIT - (v))))
+
 /**
  * Miscellaneous data for ACL rule.
  */