1219820Sjeff/*
2219820Sjeff * Copyright (c) 2004, 2005 Voltaire, Inc. All rights reserved.
3219820Sjeff * Copyright (c) 2002-2005 Mellanox Technologies LTD. All rights reserved.
4219820Sjeff * Copyright (c) 1996-2003 Intel Corporation. All rights reserved.
5219820Sjeff *
6219820Sjeff * This software is available to you under a choice of one of two
7219820Sjeff * licenses.  You may choose to be licensed under the terms of the GNU
8219820Sjeff * General Public License (GPL) Version 2, available from the file
9219820Sjeff * COPYING in the main directory of this source tree, or the
10219820Sjeff * OpenIB.org BSD license below:
11219820Sjeff *
12219820Sjeff *     Redistribution and use in source and binary forms, with or
13219820Sjeff *     without modification, are permitted provided that the following
14219820Sjeff *     conditions are met:
15219820Sjeff *
16219820Sjeff *      - Redistributions of source code must retain the above
17219820Sjeff *        copyright notice, this list of conditions and the following
18219820Sjeff *        disclaimer.
19219820Sjeff *
20219820Sjeff *      - Redistributions in binary form must reproduce the above
21219820Sjeff *        copyright notice, this list of conditions and the following
22219820Sjeff *        disclaimer in the documentation and/or other materials
23219820Sjeff *        provided with the distribution.
24219820Sjeff *
25219820Sjeff * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
26219820Sjeff * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
27219820Sjeff * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
28219820Sjeff * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
29219820Sjeff * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
30219820Sjeff * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
31219820Sjeff * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
32219820Sjeff * SOFTWARE.
33219820Sjeff *
34219820Sjeff */
35219820Sjeff
36219820Sjeff/*
37219820Sjeff * Abstract:
38219820Sjeff *	Provides common macros for dealing with byte swapping issues.
39219820Sjeff */
40219820Sjeff
41219820Sjeff#ifndef _CL_BYTESWAP_OSD_H_
42219820Sjeff#define _CL_BYTESWAP_OSD_H_
43219820Sjeff
44219820Sjeff/*
45219820Sjeff * This provides defines __LITTLE_ENDIAN, __BIG_ENDIAN and __BYTE_ORDER
46219820Sjeff */
47219820Sjeff#include <endian.h>
48219820Sjeff#include <byteswap.h>
49219820Sjeff
50219820Sjeff#ifdef __cplusplus
51219820Sjeff#  define BEGIN_C_DECLS extern "C" {
52219820Sjeff#  define END_C_DECLS   }
53219820Sjeff#else				/* !__cplusplus */
54219820Sjeff#  define BEGIN_C_DECLS
55219820Sjeff#  define END_C_DECLS
56219820Sjeff#endif				/* __cplusplus */
57219820Sjeff
58219820SjeffBEGIN_C_DECLS
59219820Sjeff#if __BYTE_ORDER == __LITTLE_ENDIAN
60219820Sjeff#define cl_ntoh16(x)	bswap_16(x)
61219820Sjeff#define cl_hton16(x)	bswap_16(x)
62219820Sjeff#define cl_ntoh32(x)	bswap_32(x)
63219820Sjeff#define cl_hton32(x)	bswap_32(x)
64219820Sjeff#define cl_ntoh64(x)	(uint64_t)bswap_64(x)
65219820Sjeff#define cl_hton64(x)	(uint64_t)bswap_64(x)
66219820Sjeff#else				/* Big Endian */
67219820Sjeff#define cl_ntoh16(x)	(x)
68219820Sjeff#define cl_hton16(x)	(x)
69219820Sjeff#define cl_ntoh32(x)	(x)
70219820Sjeff#define cl_hton32(x)	(x)
71219820Sjeff#define cl_ntoh64(x)	(x)
72219820Sjeff#define cl_hton64(x)	(x)
73219820Sjeff#endif
74219820SjeffEND_C_DECLS
75219820Sjeff#endif				/* _CL_BYTESWAP_OSD_H_ */
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