2 * Copyright (c) 2010 Isilon Systems, Inc.
3 * Copyright (c) 2010 iX Systems, Inc.
4 * Copyright (c) 2010 Panasas, Inc.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice unmodified, this list of conditions, and the following
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 #ifndef _ASM_BYTEORDER_H_
29 #define _ASM_BYTEORDER_H_
31 #include <sys/types.h>
32 #include <sys/endian.h>
33 #include <asm/types.h>
35 #if BYTE_ORDER == LITTLE_ENDIAN
36 #define __LITTLE_ENDIAN
41 #define cpu_to_le64 htole64
42 #define le64_to_cpu le64toh
43 #define cpu_to_le32 htole32
44 #define le32_to_cpu le32toh
45 #define cpu_to_le16 htole16
46 #define le16_to_cpu le16toh
47 #define cpu_to_be64 htobe64
48 #define be64_to_cpu be64toh
49 #define cpu_to_be32 htobe32
50 #define be32_to_cpu be32toh
51 #define cpu_to_be16 htobe16
52 #define be16_to_cpu be16toh
53 #define __be16_to_cpu be16toh
55 #define cpu_to_le64p(x) htole64(*((uint64_t *)x))
56 #define le64_to_cpup(x) le64toh(*((uint64_t *)x))
57 #define cpu_to_le32p(x) htole32(*((uint32_t *)x))
58 #define le32_to_cpup(x) le32toh(*((uint32_t *)x))
59 #define cpu_to_le16p(x) htole16(*((uint16_t *)x))
60 #define le16_to_cpup(x) le16toh(*((uint16_t *)x))
61 #define cpu_to_be64p(x) htobe64(*((uint64_t *)x))
62 #define be64_to_cpup(x) be64toh(*((uint64_t *)x))
63 #define cpu_to_be32p(x) htobe32(*((uint32_t *)x))
64 #define be32_to_cpup(x) be32toh(*((uint32_t *)x))
65 #define cpu_to_be16p(x) htobe16(*((uint16_t *)x))
66 #define be16_to_cpup(x) be16toh(*((uint16_t *)x))
68 #define cpu_to_le64s(x) do { *((uint64_t *)x) = cpu_to_le64p((x)) } while (0)
69 #define le64_to_cpus(x) do { *((uint64_t *)x) = le64_to_cpup((x)) } while (0)
70 #define cpu_to_le32s(x) do { *((uint32_t *)x) = cpu_to_le32p((x)) } while (0)
71 #define le32_to_cpus(x) do { *((uint32_t *)x) = le32_to_cpup((x)) } while (0)
72 #define cpu_to_le16s(x) do { *((uint16_t *)x) = cpu_to_le16p((x)) } while (0)
73 #define le16_to_cpus(x) do { *((uint16_t *)x) = le16_to_cpup((x)) } while (0)
74 #define cpu_to_be64s(x) do { *((uint64_t *)x) = cpu_to_be64p((x)) } while (0)
75 #define be64_to_cpus(x) do { *((uint64_t *)x) = be64_to_cpup((x)) } while (0)
76 #define cpu_to_be32s(x) do { *((uint32_t *)x) = cpu_to_be32p((x)) } while (0)
77 #define be32_to_cpus(x) do { *((uint32_t *)x) = be32_to_cpup((x)) } while (0)
78 #define cpu_to_be16s(x) do { *((uint16_t *)x) = cpu_to_be16p((x)) } while (0)
79 #define be16_to_cpus(x) do { *((uint16_t *)x) = be16_to_cpup((x)) } while (0)
81 #define swab16 bswap16
82 #define swab32 bswap32
83 #define swab64 bswap64
86 be16_add_cpu(u16 *var, u16 val)
88 *var = cpu_to_be16(be16_to_cpu(*var) + val);
91 #endif /* _ASM_BYTEORDER_H_ */