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.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice unmodified, this list of conditions, and the following
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.
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.
31 #ifndef _ASM_BYTEORDER_H_
32 #define _ASM_BYTEORDER_H_
34 #include <sys/types.h>
35 #include <sys/endian.h>
36 #include <asm/types.h>
38 #if BYTE_ORDER == LITTLE_ENDIAN
39 #define __LITTLE_ENDIAN
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)
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)))
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)
84 #define swab16(x) bswap16(x)
85 #define swab32(x) bswap32(x)
86 #define swab64(x) bswap64(x)
89 be16_add_cpu(uint16_t *var, uint16_t val)
91 *var = cpu_to_be16(be16_to_cpu(*var) + val);
94 #endif /* _ASM_BYTEORDER_H_ */