byteorder.h revision 331756 
1/*-
2 * Copyright (c) 2010 Isilon Systems, Inc.
3 * Copyright (c) 2010 iX Systems, Inc.
4 * Copyright (c) 2010 Panasas, Inc.
5 * Copyright (c) 2013-2016 Mellanox Technologies, Ltd.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice unmodified, this list of conditions, and the following
13 *    disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 *
29 * $FreeBSD: stable/11/sys/compat/linuxkpi/common/include/asm/byteorder.h 331756 2018-03-30 02:04:46Z emaste $
30 */
31#ifndef	_ASM_BYTEORDER_H_
32#define	_ASM_BYTEORDER_H_
33
34#include <sys/types.h>
35#include <sys/endian.h>
36#include <asm/types.h>
37
38#if BYTE_ORDER == LITTLE_ENDIAN
39#define	__LITTLE_ENDIAN
40#else
41#define	__BIG_ENDIAN
42#endif
43
44#define	cpu_to_le64(x)	htole64(x)
45#define	le64_to_cpu(x)	le64toh(x)
46#define	cpu_to_le32(x)	htole32(x)
47#define	le32_to_cpu(x)	le32toh(x)
48#define	cpu_to_le16(x)	htole16(x)
49#define	le16_to_cpu(x)	le16toh(x)
50#define	cpu_to_be64(x)	htobe64(x)
51#define	be64_to_cpu(x)	be64toh(x)
52#define	cpu_to_be32(x)	htobe32(x)
53#define	be32_to_cpu(x)	be32toh(x)
54#define	cpu_to_be16(x)	htobe16(x)
55#define	be16_to_cpu(x)	be16toh(x)
56#define	__be16_to_cpu(x)	be16toh(x)
57
58#define	cpu_to_le64p(x)	htole64(*((const uint64_t *)(x)))
59#define	le64_to_cpup(x)	le64toh(*((const uint64_t *)(x)))
60#define	cpu_to_le32p(x)	htole32(*((const uint32_t *)(x)))
61#define	le32_to_cpup(x)	le32toh(*((const uint32_t *)(x)))
62#define	cpu_to_le16p(x)	htole16(*((const uint16_t *)(x)))
63#define	le16_to_cpup(x)	le16toh(*((const uint16_t *)(x)))
64#define	cpu_to_be64p(x)	htobe64(*((const uint64_t *)(x)))
65#define	be64_to_cpup(x)	be64toh(*((const uint64_t *)(x)))
66#define	cpu_to_be32p(x)	htobe32(*((const uint32_t *)(x)))
67#define	be32_to_cpup(x)	be32toh(*((const uint32_t *)(x)))
68#define	cpu_to_be16p(x)	htobe16(*((const uint16_t *)(x)))
69#define	be16_to_cpup(x)	be16toh(*((const uint16_t *)(x)))
70
71#define	cpu_to_le64s(x)	do { *((uint64_t *)(x)) = cpu_to_le64p((x)); } while (0)
72#define	le64_to_cpus(x)	do { *((uint64_t *)(x)) = le64_to_cpup((x)); } while (0)
73#define	cpu_to_le32s(x)	do { *((uint32_t *)(x)) = cpu_to_le32p((x)); } while (0)
74#define	le32_to_cpus(x)	do { *((uint32_t *)(x)) = le32_to_cpup((x)); } while (0)
75#define	cpu_to_le16s(x)	do { *((uint16_t *)(x)) = cpu_to_le16p((x)); } while (0)
76#define	le16_to_cpus(x)	do { *((uint16_t *)(x)) = le16_to_cpup((x)); } while (0)
77#define	cpu_to_be64s(x)	do { *((uint64_t *)(x)) = cpu_to_be64p((x)); } while (0)
78#define	be64_to_cpus(x)	do { *((uint64_t *)(x)) = be64_to_cpup((x)); } while (0)
79#define	cpu_to_be32s(x)	do { *((uint32_t *)(x)) = cpu_to_be32p((x)); } while (0)
80#define	be32_to_cpus(x)	do { *((uint32_t *)(x)) = be32_to_cpup((x)); } while (0)
81#define	cpu_to_be16s(x)	do { *((uint16_t *)(x)) = cpu_to_be16p((x)); } while (0)
82#define	be16_to_cpus(x)	do { *((uint16_t *)(x)) = be16_to_cpup((x)); } while (0)
83
84#define	swab16(x)	bswap16(x)
85#define	swab32(x)	bswap32(x)
86#define	swab64(x)	bswap64(x)
87
88static inline void
89be16_add_cpu(uint16_t *var, uint16_t val)
90{
91	*var = cpu_to_be16(be16_to_cpu(*var) + val);
92}
93
94#endif	/* _ASM_BYTEORDER_H_ */
95