projects / mirror_spl.git / blame
| Commit | Line | Data |
|---|---|---|
| 4b393c50 | 1 | /* |
| 716154c5 BB |
2 | * Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC. |
| 3 | * Copyright (C) 2007 The Regents of the University of California. | |
| 4 | * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER). | |
| 5 | * Written by Brian Behlendorf <behlendorf1@llnl.gov>. | |
| 6 | * UCRL-CODE-235197 | |
| 7 | * | |
| 8 | * This file is part of the SPL, Solaris Porting Layer. | |
| 3d6af2dd | 9 | * For details, see <http://zfsonlinux.org/>. |
| 716154c5 BB |
10 | * |
| 11 | * The SPL is free software; you can redistribute it and/or modify it | |
| 12 | * under the terms of the GNU General Public License as published by the | |
| 13 | * Free Software Foundation; either version 2 of the License, or (at your | |
| 14 | * option) any later version. | |
| 15 | * | |
| 16 | * The SPL is distributed in the hope that it will be useful, but WITHOUT | |
| 17 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 19 | * for more details. | |
| 20 | * | |
| 21 | * You should have received a copy of the GNU General Public License along | |
| 22 | * with the SPL. If not, see <http://www.gnu.org/licenses/>. | |
| 4b393c50 | 23 | */ |
| 716154c5 | 24 | |
| 36e6f861 | 25 | #ifndef _SPL_BYTEORDER_H |
| 5461eefe | 26 | #define _SPL_BYTEORDER_H |
| 3b3ba48f | 27 | |
| 36e6f861 | 28 | #include <asm/byteorder.h> |
| 18d2f561 | 29 | #include <sys/isa_defs.h> |
| 36e6f861 | 30 | |
| 5712fade BB |
31 | #define BSWAP_8(x) ((x) & 0xff) |
| 32 | #define BSWAP_16(x) ((BSWAP_8(x) << 8) | BSWAP_8((x) >> 8)) | |
| 33 | #define BSWAP_32(x) ((BSWAP_16(x) << 16) | BSWAP_16((x) >> 16)) | |
| 34 | #define BSWAP_64(x) ((BSWAP_32(x) << 32) | BSWAP_32((x) >> 32)) | |
| 35 | ||
| 5461eefe BB |
36 | #define LE_16(x) cpu_to_le16(x) |
| 37 | #define LE_32(x) cpu_to_le32(x) | |
| 38 | #define LE_64(x) cpu_to_le64(x) | |
| 39 | #define BE_16(x) cpu_to_be16(x) | |
| 40 | #define BE_32(x) cpu_to_be32(x) | |
| 41 | #define BE_64(x) cpu_to_be64(x) | |
| 36e6f861 | 42 | |
| 5461eefe | 43 | #define BE_IN8(xa) \ |
| 3cbfd259 ED |
44 | *((uint8_t *)(xa)) |
| 45 | ||
| 5461eefe | 46 | #define BE_IN16(xa) \ |
| 3cbfd259 ED |
47 | (((uint16_t)BE_IN8(xa) << 8) | BE_IN8((uint8_t *)(xa)+1)) |
| 48 | ||
| 5461eefe | 49 | #define BE_IN32(xa) \ |
| 3cbfd259 ED |
50 | (((uint32_t)BE_IN16(xa) << 16) | BE_IN16((uint8_t *)(xa)+2)) |
| 51 | ||
| 18d2f561 TC |
52 | #ifdef _BIG_ENDIAN |
| 53 | static __inline__ uint64_t | |
| 5461eefe BB |
54 | htonll(uint64_t n) |
| 55 | { | |
| 18d2f561 TC |
56 | return (n); |
| 57 | } | |
| 58 | ||
| 59 | static __inline__ uint64_t | |
| 5461eefe BB |
60 | ntohll(uint64_t n) |
| 61 | { | |
| 18d2f561 TC |
62 | return (n); |
| 63 | } | |
| 64 | #else | |
| 65 | static __inline__ uint64_t | |
| 5461eefe BB |
66 | htonll(uint64_t n) |
| 67 | { | |
| 18d2f561 TC |
68 | return ((((uint64_t)htonl(n)) << 32) + htonl(n >> 32)); |
| 69 | } | |
| 70 | ||
| 71 | static __inline__ uint64_t | |
| 5461eefe BB |
72 | ntohll(uint64_t n) |
| 73 | { | |
| 18d2f561 TC |
74 | return ((((uint64_t)ntohl(n)) << 32) + ntohl(n >> 32)); |
| 75 | } | |
| 76 | #endif | |
| 77 | ||
| 36e6f861 | 78 | #endif /* SPL_BYTEORDER_H */ |