1 files changed, 0 insertions, 229 deletions
diff --git a/gpxe/src/include/gpxe/iobuf.h b/gpxe/src/include/gpxe/iobuf.h
deleted file mode 100644
index 8f05f9ea..00000000
--- a/gpxe/src/include/gpxe/iobuf.h
+++ /dev/null
@@ -1,229 +0,0 @@
-#ifndef _GPXE_IOBUF_H
-#define _GPXE_IOBUF_H
-
-/** @file
- *
- * I/O buffers
- *
- */
-
-FILE_LICENCE ( GPL2_OR_LATER );
-
-#include <stdint.h>
-#include <assert.h>
-#include <gpxe/list.h>
-
-/**
- * I/O buffer alignment
- *
- * I/O buffers allocated via alloc_iob() are guaranteed to be
- * physically aligned to this boundary.  Some cards cannot DMA across
- * a 4kB boundary.  With a standard Ethernet MTU, aligning to a 2kB
- * boundary is sufficient to guarantee no 4kB boundary crossings.  For
- * a jumbo Ethernet MTU, a packet may be larger than 4kB anyway.
- */
-#define IOB_ALIGN 2048
-
-/**
- * Minimum I/O buffer length
- *
- * alloc_iob() will round up the allocated length to this size if
- * necessary.  This is used on behalf of hardware that is not capable
- * of auto-padding.
- */
-#define IOB_ZLEN 64
-
-/**
- * A persistent I/O buffer
- *
- * This data structure encapsulates a long-lived I/O buffer.  The
- * buffer may be passed between multiple owners, queued for possible
- * retransmission, etc.
- */
-struct io_buffer {
-	/** List of which this buffer is a member
-	 *
-	 * The list must belong to the current owner of the buffer.
-	 * Different owners may maintain different lists (e.g. a
-	 * retransmission list for TCP).
-	 */
-	struct list_head list;
-
-	/** Start of the buffer */
-	void *head;
-	/** Start of data */
-	void *data;
-	/** End of data */
-	void *tail;
-	/** End of the buffer */
-        void *end;
-};
-
-/**
- * Reserve space at start of I/O buffer
- *
- * @v iobuf	I/O buffer
- * @v len	Length to reserve
- * @ret data	Pointer to new start of buffer
- */
-static inline void * iob_reserve ( struct io_buffer *iobuf, size_t len ) {
-	iobuf->data += len;
-	iobuf->tail += len;
-	return iobuf->data;
-}
-#define iob_reserve( iobuf, len ) ( {			\
-	void *__result;					\
-	__result = iob_reserve ( (iobuf), (len) );	\
-	assert ( (iobuf)->tail <= (iobuf)->end );	\
-	__result; } )
-
-/**
- * Add data to start of I/O buffer
- *
- * @v iobuf	I/O buffer
- * @v len	Length to add
- * @ret data	Pointer to new start of buffer
- */
-static inline void * iob_push ( struct io_buffer *iobuf, size_t len ) {
-	iobuf->data -= len;
-	return iobuf->data;
-}
-#define iob_push( iobuf, len ) ( {			\
-	void *__result;					\
-	__result = iob_push ( (iobuf), (len) );		\
-	assert ( (iobuf)->data >= (iobuf)->head );	\
-	__result; } )
-
-/**
- * Remove data from start of I/O buffer
- *
- * @v iobuf	I/O buffer
- * @v len	Length to remove
- * @ret data	Pointer to new start of buffer
- */
-static inline void * iob_pull ( struct io_buffer *iobuf, size_t len ) {
-	iobuf->data += len;
-	assert ( iobuf->data <= iobuf->tail );
-	return iobuf->data;
-}
-#define iob_pull( iobuf, len ) ( {			\
-	void *__result;					\
-	__result = iob_pull ( (iobuf), (len) );		\
-	assert ( (iobuf)->data <= (iobuf)->tail );	\
-	__result; } )
-
-/**
- * Add data to end of I/O buffer
- *
- * @v iobuf	I/O buffer
- * @v len	Length to add
- * @ret data	Pointer to newly added space
- */
-static inline void * iob_put ( struct io_buffer *iobuf, size_t len ) {
-	void *old_tail = iobuf->tail;
-	iobuf->tail += len;
-	return old_tail;
-}
-#define iob_put( iobuf, len ) ( {			\
-	void *__result;					\
-	__result = iob_put ( (iobuf), (len) );		\
-	assert ( (iobuf)->tail <= (iobuf)->end );	\
-	__result; } )
-
-/**
- * Remove data from end of I/O buffer
- *
- * @v iobuf	I/O buffer
- * @v len	Length to remove
- */
-static inline void iob_unput ( struct io_buffer *iobuf, size_t len ) {
-	iobuf->tail -= len;
-}
-#define iob_unput( iobuf, len ) do {			\
-	iob_unput ( (iobuf), (len) );			\
-	assert ( (iobuf)->tail >= (iobuf)->data );	\
-	} while ( 0 )
-
-/**
- * Empty an I/O buffer
- *
- * @v iobuf	I/O buffer
- */
-static inline void iob_empty ( struct io_buffer *iobuf ) {
-	iobuf->tail = iobuf->data;
-}
-
-/**
- * Calculate length of data in an I/O buffer
- *
- * @v iobuf	I/O buffer
- * @ret len	Length of data in buffer
- */
-static inline size_t iob_len ( struct io_buffer *iobuf ) {
-	return ( iobuf->tail - iobuf->data );
-}
-
-/**
- * Calculate available space at start of an I/O buffer
- *
- * @v iobuf	I/O buffer
- * @ret len	Length of data available at start of buffer
- */
-static inline size_t iob_headroom ( struct io_buffer *iobuf ) {
-	return ( iobuf->data - iobuf->head );
-}
-
-/**
- * Calculate available space at end of an I/O buffer
- *
- * @v iobuf	I/O buffer
- * @ret len	Length of data available at end of buffer
- */
-static inline size_t iob_tailroom ( struct io_buffer *iobuf ) {
-	return ( iobuf->end - iobuf->tail );
-}
-
-/**
- * Create a temporary I/O buffer
- *
- * @v iobuf	I/O buffer
- * @v data	Data buffer
- * @v len	Length of data
- * @v max_len	Length of buffer
- *
- * It is sometimes useful to use the iob_xxx() methods on temporary
- * data buffers.
- */
-static inline void iob_populate ( struct io_buffer *iobuf,
-				  void *data, size_t len, size_t max_len ) {
-	iobuf->head = iobuf->data = data;
-	iobuf->tail = ( data + len );
-	iobuf->end = ( data + max_len );
-}
-
-/**
- * Disown an I/O buffer
- *
- * @v iobuf	I/O buffer
- *
- * There are many functions that take ownership of the I/O buffer they
- * are passed as a parameter.  The caller should not retain a pointer
- * to the I/O buffer.  Use iob_disown() to automatically nullify the
- * caller's pointer, e.g.:
- *
- *     xfer_deliver_iob ( xfer, iob_disown ( iobuf ) );
- *
- * This will ensure that iobuf is set to NULL for any code after the
- * call to xfer_deliver_iob().
- */
-#define iob_disown( iobuf ) ( {				\
-	struct io_buffer *__iobuf = (iobuf);		\
-	(iobuf) = NULL;					\
-	__iobuf; } )
-
-extern struct io_buffer * __malloc alloc_iob ( size_t len );
-extern void free_iob ( struct io_buffer *iobuf );
-extern void iob_pad ( struct io_buffer *iobuf, size_t min_len );
-extern int iob_ensure_headroom ( struct io_buffer *iobuf, size_t len );
-
-#endif /* _GPXE_IOBUF_H */