mirror_zfs/include/os/linux/spl/sys/byteorder.h
Brian Behlendorf 46c71074ca Replace ZFS on Linux references with OpenZFS
This change updates the documentation to refer to the project
as OpenZFS instead ZFS on Linux.  Web links have been updated
to refer to https://github.com/openzfs/zfs.  The extraneous
zfsonlinux.org web links in the ZED and SPL sources have been
dropped.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Richard Laager <rlaager@wiktel.com>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11007
2020-10-16 13:01:24 -07:00

87 lines
2.3 KiB
C

/*
* Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
* Copyright (C) 2007 The Regents of the University of California.
* Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
* Written by Brian Behlendorf <behlendorf1@llnl.gov>.
* UCRL-CODE-235197
*
* This file is part of the SPL, Solaris Porting Layer.
*
* The SPL is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* The SPL is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with the SPL. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _SPL_BYTEORDER_H
#define _SPL_BYTEORDER_H
#include <asm/byteorder.h>
#if defined(__BIG_ENDIAN) && !defined(_ZFS_BIG_ENDIAN)
#define _ZFS_BIG_ENDIAN
#endif
#if defined(__LITTLE_ENDIAN) && !defined(_ZFS_LITTLE_ENDIAN)
#define _ZFS_LITTLE_ENDIAN
#endif
#include <sys/isa_defs.h>
#define BSWAP_8(x) ((x) & 0xff)
#define BSWAP_16(x) ((BSWAP_8(x) << 8) | BSWAP_8((x) >> 8))
#define BSWAP_32(x) ((BSWAP_16(x) << 16) | BSWAP_16((x) >> 16))
#define BSWAP_64(x) ((BSWAP_32(x) << 32) | BSWAP_32((x) >> 32))
#define LE_16(x) cpu_to_le16(x)
#define LE_32(x) cpu_to_le32(x)
#define LE_64(x) cpu_to_le64(x)
#define BE_16(x) cpu_to_be16(x)
#define BE_32(x) cpu_to_be32(x)
#define BE_64(x) cpu_to_be64(x)
#define BE_IN8(xa) \
*((uint8_t *)(xa))
#define BE_IN16(xa) \
(((uint16_t)BE_IN8(xa) << 8) | BE_IN8((uint8_t *)(xa)+1))
#define BE_IN32(xa) \
(((uint32_t)BE_IN16(xa) << 16) | BE_IN16((uint8_t *)(xa)+2))
#ifdef _ZFS_BIG_ENDIAN
static __inline__ uint64_t
htonll(uint64_t n)
{
return (n);
}
static __inline__ uint64_t
ntohll(uint64_t n)
{
return (n);
}
#else
static __inline__ uint64_t
htonll(uint64_t n)
{
return ((((uint64_t)htonl(n)) << 32) + htonl(n >> 32));
}
static __inline__ uint64_t
ntohll(uint64_t n)
{
return ((((uint64_t)ntohl(n)) << 32) + ntohl(n >> 32));
}
#endif
#endif /* SPL_BYTEORDER_H */