ofproto: Use 64-bit datapath id and management id (OpenFlow 0.9)

[sliver-openvswitch.git] / include / openflow / openflow.h

diff --git a/include/openflow/openflow.h b/include/openflow/openflow.h
index 60ed8b8..50fee6e 100644 (file)
--- a/include/openflow/openflow.h
+++ b/include/openflow/openflow.h
@@ -229,8 +229,9 @@ OFP_ASSERT(sizeof(struct ofp_phy_port) == 48);
 /* Switch features. */
 struct ofp_switch_features {
     struct ofp_header header;
-    uint64_t datapath_id;   /* Datapath unique ID.  Only the lower 48-bits
-                               are meaningful. */
+    uint64_t datapath_id;   /* Datapath unique ID.  The lower 48-bits are for 
+                               a MAC address, while the upper 16-bits are
+                               implementer-defined. */
 
     uint32_t n_buffers;     /* Max packets buffered at once. */