Add guide to porting Open vSwitch.

[openvswitch] / lib / dpif-provider.h

diff --git a/lib/dpif-provider.h b/lib/dpif-provider.h
index 33663ff47358f3de93c3900f10667f5e19b93674..5cbefebc644169ca7a31693c559652f95f4deea9 100644 (file)
--- a/lib/dpif-provider.h
+++ b/lib/dpif-provider.h
@@ -18,7 +18,9 @@
 #define DPIF_PROVIDER_H 1
 
 /* Provider interface to dpifs, which provide an interface to an Open vSwitch
- * datapath. */
+ * datapath.  A datapath is a collection of physical or virtual ports that are
+ * exposed over OpenFlow as a single switch.  Datapaths and the collections of
+ * ports that they contain may be fixed or dynamic. */
 
 #include <assert.h>
 #include "openflow/openflow.h"