Added deliver-as-iobuf/deliver-as-raw concepts.

1 files changed, 33 insertions, 1 deletions

diff --git a/src/include/gpxe/xfer.h b/src/include/gpxe/xfer.h
index 0e577e933..7a10b860b 100644
--- a/src/include/gpxe/xfer.h
+++ b/src/include/gpxe/xfer.h
@@ -18,13 +18,32 @@ struct xfer_interface_operations {
 	/** Deliver datagram
 	 *
 	 * @v xfer		Data-transfer interface
-	 * @v src		Source  interface
+	 * @v src		Source interface
 	 * @v iobuf		Datagram I/O buffer
 	 * @ret rc		Return status code
+	 *
+	 * A data transfer interface that wishes to support only raw
+	 * data delivery should set this method to
+	 * deliver_as_raw().
 	 */
 	int ( * deliver ) ( struct xfer_interface *xfer,
 			    struct xfer_interface *src,
 			    struct io_buffer *iobuf );
+	/** Deliver datagram as raw data
+	 *
+	 * @v xfer		Data-transfer interface
+	 * @v src		Source interface
+	 * @v data		Data buffer
+	 * @v len		Length of data buffer
+	 * @ret rc		Return status code
+	 *
+	 * A data transfer interface that wishes to support only I/O
+	 * buffer delivery should set this method to
+	 * deliver_as_iobuf().
+	 */
+	int ( * deliver_raw ) ( struct xfer_interface *xfer,
+				struct xfer_interface *src,
+				const void *data, size_t len );
 };
 
 /** A data transfer interface */
@@ -38,6 +57,19 @@ struct xfer_interface {
 extern struct xfer_interface null_xfer;
 extern struct xfer_interface_operations null_xfer_ops;
 
+extern int deliver_as_raw ( struct xfer_interface *xfer,
+			    struct xfer_interface *src,
+			    struct io_buffer *iobuf );
+extern int deliver_as_iobuf ( struct xfer_interface *xfer,
+			      struct xfer_interface *src,
+			      const void *data, size_t len );
+
+/**
+ * Get destination data-transfer interface
+ *
+ * @v xfer		Data-transfer interface
+ * @ret dest		Destination interface
+ */
 static inline struct xfer_interface *
 xfer_dest ( struct xfer_interface *xfer ) {
 	return container_of ( xfer->intf.dest, struct xfer_interface, intf );