ofproto-dpif: Refactor feature support structure.

[cascardo/ovs.git] / ofproto / ofproto-dpif.h

diff --git a/ofproto/ofproto-dpif.h b/ofproto/ofproto-dpif.h
index 9566924..9d625a1 100644 (file)
--- a/ofproto/ofproto-dpif.h
+++ b/ofproto/ofproto-dpif.h
@@ -73,6 +73,31 @@ BUILD_ASSERT_DECL(N_TABLES >= 2 && N_TABLES <= 255);
  *   Ofproto-dpif-xlate is responsible for translating OpenFlow actions into
  *   datapath actions. */
 
+/* Stores the various features which the corresponding backer supports. */
+struct dpif_backer_support {
+    /* True if the datapath supports variable-length
+     * OVS_USERSPACE_ATTR_USERDATA in OVS_ACTION_ATTR_USERSPACE actions.
+     * False if the datapath supports only 8-byte (or shorter) userdata. */
+    bool variable_length_userdata;
+
+    /* Maximum number of MPLS label stack entries that the datapath supports
+     * in a match */
+    size_t max_mpls_depth;
+
+    /* True if the datapath supports masked data in OVS_ACTION_ATTR_SET
+     * actions. */
+    bool masked_set_action;
+
+    /* True if the datapath supports recirculation. */
+    bool recirc;
+
+    /* True if the datapath supports tnl_push and pop actions. */
+    bool tnl_push_pop;
+
+    /* True if the datapath supports OVS_FLOW_ATTR_UFID. */
+    bool ufid;
+};
+
 size_t ofproto_dpif_get_max_mpls_depth(const struct ofproto_dpif *);
 bool ofproto_dpif_get_enable_recirc(const struct ofproto_dpif *);
 bool ofproto_dpif_get_enable_ufid(struct dpif_backer *backer);