gpxe: delete long since obsolete snapshot of gPXE

gPXE has been deprecated in favor of iPXE for many, many years now.
It is much better than users get it directly from the iPXE project,
since we should no longer need any special modifications for Syslinux
use.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 0 insertions, 277 deletions

diff --git a/gpxe/src/include/gpxe/xfer.h b/gpxe/src/include/gpxe/xfer.h
deleted file mode 100644
index edd37034..00000000
--- a/gpxe/src/include/gpxe/xfer.h
+++ /dev/null
@@ -1,277 +0,0 @@
-#ifndef _GPXE_XFER_H
-#define _GPXE_XFER_H
-
-/** @file
- *
- * Data transfer interfaces
- *
- */
-
-FILE_LICENCE ( GPL2_OR_LATER );
-
-#include <stddef.h>
-#include <stdarg.h>
-#include <gpxe/interface.h>
-#include <gpxe/iobuf.h>
-
-struct xfer_interface;
-struct xfer_metadata;
-
-/** Data transfer interface operations */
-struct xfer_interface_operations {
-	/** Close interface
-	 *
-	 * @v xfer		Data transfer interface
-	 * @v rc		Reason for close
-	 */
-	void ( * close ) ( struct xfer_interface *xfer, int rc );
-	/** Redirect to new location
-	 *
-	 * @v xfer		Data transfer interface
-	 * @v type		New location type
-	 * @v args		Remaining arguments depend upon location type
-	 * @ret rc		Return status code
-	 */
-	int ( * vredirect ) ( struct xfer_interface *xfer, int type,
-			      va_list args );
-	/** Check flow control window
-	 *
-	 * @v xfer		Data transfer interface
-	 * @ret len		Length of window
-	 *
-	 * Flow control is regarded as advisory but not mandatory.
-	 * Users who have control over their own rate of data
-	 * generation should perform a flow control check before
-	 * generating new data.  Users who have no control (such as
-	 * NIC drivers or filter layers) are not obliged to check.
-	 *
-	 * Data transfer interfaces must be prepared to accept
-	 * datagrams even if they are advertising a window of zero
-	 * bytes.
-	 */
-	size_t ( * window ) ( struct xfer_interface *xfer );
-	/** Allocate I/O buffer
-	 *
-	 * @v xfer		Data transfer interface
-	 * @v len		I/O buffer payload length
-	 * @ret iobuf		I/O buffer
-	 */
-	struct io_buffer * ( * alloc_iob ) ( struct xfer_interface *xfer,
-					     size_t len );
-	/** Deliver datagram as I/O buffer with metadata
-	 *
-	 * @v xfer		Data transfer interface
-	 * @v iobuf		Datagram I/O buffer
-	 * @v meta		Data transfer metadata
-	 * @ret rc		Return status code
-	 *
-	 * A data transfer interface that wishes to support only raw
-	 * data delivery should set this method to
-	 * xfer_deliver_as_raw().
-	 */
-	int ( * deliver_iob ) ( struct xfer_interface *xfer,
-				struct io_buffer *iobuf,
-				struct xfer_metadata *meta );
-	/** Deliver datagram as raw data
-	 *
-	 * @v xfer		Data transfer 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
-	 * xfer_deliver_as_iob().
-	 */
-	int ( * deliver_raw ) ( struct xfer_interface *xfer,
-				const void *data, size_t len );
-};
-
-/** A data transfer interface */
-struct xfer_interface {
-	/** Generic object communication interface */
-	struct interface intf;
-	/** Operations for received messages */
-	struct xfer_interface_operations *op;
-};
-
-/** Basis positions for seek() events */
-enum seek_whence {
-	SEEK_CUR = 0,
-	SEEK_SET,
-};
-
-/** Data transfer metadata */
-struct xfer_metadata {
-	/** Position of data within stream */
-	off_t offset;
-	/** Basis for data position
-	 *
-	 * Must be one of @c SEEK_CUR or @c SEEK_SET.
-	 */
-	int whence;
-	/** Source socket address, or NULL */
-	struct sockaddr *src;
-	/** Destination socket address, or NULL */
-	struct sockaddr *dest;
-	/** Network device, or NULL */
-	struct net_device *netdev;
-};
-
-/**
- * Describe seek basis
- *
- * @v whence		Basis for new position
- */
-static inline __attribute__ (( always_inline )) const char *
-whence_text ( int whence ) {
-	switch ( whence ) {
-	case SEEK_CUR:	return "CUR";
-	case SEEK_SET:	return "SET";
-	default:	return "INVALID";
-	}
-}
-
-extern struct xfer_interface null_xfer;
-extern struct xfer_interface_operations null_xfer_ops;
-
-extern void xfer_close ( struct xfer_interface *xfer, int rc );
-extern int xfer_vredirect ( struct xfer_interface *xfer, int type,
-			    va_list args );
-extern int xfer_redirect ( struct xfer_interface *xfer, int type, ... );
-extern size_t xfer_window ( struct xfer_interface *xfer );
-extern struct io_buffer * xfer_alloc_iob ( struct xfer_interface *xfer,
-					   size_t len );
-extern int xfer_deliver_iob ( struct xfer_interface *xfer,
-			      struct io_buffer *iobuf );
-extern int xfer_deliver_iob_meta ( struct xfer_interface *xfer,
-				   struct io_buffer *iobuf,
-				   struct xfer_metadata *meta );
-extern int xfer_deliver_raw ( struct xfer_interface *xfer,
-			      const void *data, size_t len );
-extern int xfer_vprintf ( struct xfer_interface *xfer,
-			  const char *format, va_list args );
-extern int __attribute__ (( format ( printf, 2, 3 ) ))
-xfer_printf ( struct xfer_interface *xfer, const char *format, ... );
-extern int xfer_seek ( struct xfer_interface *xfer, off_t offset, int whence );
-
-extern void ignore_xfer_close ( struct xfer_interface *xfer, int rc );
-extern int ignore_xfer_vredirect ( struct xfer_interface *xfer,
-				   int type, va_list args );
-extern size_t unlimited_xfer_window ( struct xfer_interface *xfer );
-extern size_t no_xfer_window ( struct xfer_interface *xfer );
-extern struct io_buffer * default_xfer_alloc_iob ( struct xfer_interface *xfer,
-						   size_t len );
-extern int xfer_deliver_as_raw ( struct xfer_interface *xfer,
-				 struct io_buffer *iobuf,
-				 struct xfer_metadata *meta );
-extern int xfer_deliver_as_iob ( struct xfer_interface *xfer,
-				 const void *data, size_t len );
-extern int ignore_xfer_deliver_raw ( struct xfer_interface *xfer,
-				     const void *data __unused, size_t len );
-
-/**
- * Initialise a data transfer interface
- *
- * @v xfer		Data transfer interface
- * @v op		Data transfer interface operations
- * @v refcnt		Containing object reference counter, or NULL
- */
-static inline void xfer_init ( struct xfer_interface *xfer,
-			       struct xfer_interface_operations *op,
-			       struct refcnt *refcnt ) {
-	xfer->intf.dest = &null_xfer.intf;
-	xfer->intf.refcnt = refcnt;
-	xfer->op = op;
-}
-
-/**
- * Initialise a static data transfer interface
- *
- * @v operations		Data transfer interface operations
- */
-#define XFER_INIT( operations ) {			\
-		.intf = {				\
-			.dest = &null_xfer.intf,	\
-			.refcnt = NULL,			\
-		},					\
-		.op = operations,			\
-	}
-
-/**
- * Get data transfer interface from generic object communication interface
- *
- * @v intf		Generic object communication interface
- * @ret xfer		Data transfer interface
- */
-static inline __attribute__ (( always_inline )) struct xfer_interface *
-intf_to_xfer ( struct interface *intf ) {
-	return container_of ( intf, struct xfer_interface, intf );
-}
-
-/**
- * Get reference to destination data transfer interface
- *
- * @v xfer		Data transfer interface
- * @ret dest		Destination interface
- */
-static inline __attribute__ (( always_inline )) struct xfer_interface *
-xfer_get_dest ( struct xfer_interface *xfer ) {
-	return intf_to_xfer ( intf_get ( xfer->intf.dest ) );
-}
-
-/**
- * Drop reference to data transfer interface
- *
- * @v xfer		Data transfer interface
- */
-static inline __attribute__ (( always_inline )) void
-xfer_put ( struct xfer_interface *xfer ) {
-	intf_put ( &xfer->intf );
-}
-
-/**
- * Plug a data transfer interface into a new destination interface
- *
- * @v xfer		Data transfer interface
- * @v dest		New destination interface
- */
-static inline __attribute__ (( always_inline )) void
-xfer_plug ( struct xfer_interface *xfer, struct xfer_interface *dest ) {
-	plug ( &xfer->intf, &dest->intf );
-}
-
-/**
- * Plug two data transfer interfaces together
- *
- * @v a			Data transfer interface A
- * @v b			Data transfer interface B
- */
-static inline __attribute__ (( always_inline )) void
-xfer_plug_plug ( struct xfer_interface *a, struct xfer_interface *b ) {
-	plug_plug ( &a->intf, &b->intf );
-}
-
-/**
- * Unplug a data transfer interface
- *
- * @v xfer		Data transfer interface
- */
-static inline __attribute__ (( always_inline )) void
-xfer_unplug ( struct xfer_interface *xfer ) {
-	plug ( &xfer->intf, &null_xfer.intf );
-}
-
-/**
- * Stop using a data transfer interface
- *
- * @v xfer		Data transfer interface
- *
- * After calling this method, no further messages will be received via
- * the interface.
- */
-static inline void xfer_nullify ( struct xfer_interface *xfer ) {
-	xfer->op = &null_xfer_ops;
-};
-
-#endif /* _GPXE_XFER_H */