X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=lib%2Fmeta-flow.h;fp=lib%2Fmeta-flow.h;h=d02d320373495c5d30fa454cc0f22d92db56f48c;hb=7d78f21c057ff50a823220d809ac38c3d907243c;hp=91dfecdaaea18c5e394ddbc7ecfc5353c1dc097f;hpb=8d25251929c8f325bed0fff24192d5a87034b32e;p=sliver-openvswitch.git

diff --git a/lib/meta-flow.h b/lib/meta-flow.h
index 91dfecdaa..d02d32037 100644
--- a/lib/meta-flow.h
+++ b/lib/meta-flow.h
@@ -89,6 +89,8 @@ enum OVS_PACKED_ENUM mf_field_id {
     MFF_MPLS_BOS,               /* u8 */
 
     /* L3. */
+    /* Update mf_is_l3_or_higher() if MFF_IPV4_SRC is
+     * no longer the first element for a field of layer 3 or higher */
     MFF_IPV4_SRC,               /* be32 */
     MFF_IPV4_DST,               /* be32 */
 
@@ -361,6 +363,12 @@ void mf_get_mask(const struct mf_field *, const struct flow_wildcards *,
 bool mf_are_prereqs_ok(const struct mf_field *, const struct flow *);
 void mf_mask_field_and_prereqs(const struct mf_field *, struct flow *mask);
 
+static inline bool
+mf_is_l3_or_higher(const struct mf_field *mf)
+{
+    return mf->id >= MFF_IPV4_SRC;
+}
+
 /* Field values. */
 bool mf_is_value_valid(const struct mf_field *, const union mf_value *value);