1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
/*
* BSD LICENSE
*
* Copyright (C) IBM Corporation 2014.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of IBM Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/* Inspired from FreeBSD src/sys/powerpc/include/endian.h
* Copyright (c) 1987, 1991, 1993
* The Regents of the University of California. All rights reserved.
*/
#ifndef _RTE_BYTEORDER_PPC_64_H_
#define _RTE_BYTEORDER_PPC_64_H_
#ifdef __cplusplus
extern "C" {
#endif
#include "generic/rte_byteorder.h"
/*
* An architecture-optimized byte swap for a 16-bit value.
*
* Do not use this function directly. The preferred function is rte_bswap16().
*/
static inline uint16_t rte_arch_bswap16(uint16_t _x)
{
return ((_x >> 8) | ((_x << 8) & 0xff00));
}
/*
* An architecture-optimized byte swap for a 32-bit value.
*
* Do not use this function directly. The preferred function is rte_bswap32().
*/
static inline uint32_t rte_arch_bswap32(uint32_t _x)
{
return ((_x >> 24) | ((_x >> 8) & 0xff00) | ((_x << 8) & 0xff0000) |
((_x << 24) & 0xff000000));
}
/*
* An architecture-optimized byte swap for a 64-bit value.
*
* Do not use this function directly. The preferred function is rte_bswap64().
*/
/* 64-bit mode */
static inline uint64_t rte_arch_bswap64(uint64_t _x)
{
return ((_x >> 56) | ((_x >> 40) & 0xff00) | ((_x >> 24) & 0xff0000) |
((_x >> 8) & 0xff000000) | ((_x << 8) & (0xffULL << 32)) |
((_x << 24) & (0xffULL << 40)) |
((_x << 40) & (0xffULL << 48)) | ((_x << 56)));
}
#ifndef RTE_FORCE_INTRINSICS
#define rte_bswap16(x) ((uint16_t)(__builtin_constant_p(x) ? \
rte_constant_bswap16(x) : \
rte_arch_bswap16(x)))
#define rte_bswap32(x) ((uint32_t)(__builtin_constant_p(x) ? \
rte_constant_bswap32(x) : \
rte_arch_bswap32(x)))
#define rte_bswap64(x) ((uint64_t)(__builtin_constant_p(x) ? \
rte_constant_bswap64(x) : \
rte_arch_bswap64(x)))
#else
/*
* __builtin_bswap16 is only available gcc 4.8 and upwards
*/
#if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 8)
#define rte_bswap16(x) ((uint16_t)(__builtin_constant_p(x) ? \
rte_constant_bswap16(x) : \
rte_arch_bswap16(x)))
#endif
#endif
/* Power 8 have both little endian and big endian mode
* Power 7 only support big endian
*/
#if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
#define rte_cpu_to_le_16(x) (x)
#define rte_cpu_to_le_32(x) (x)
#define rte_cpu_to_le_64(x) (x)
#define rte_cpu_to_be_16(x) rte_bswap16(x)
#define rte_cpu_to_be_32(x) rte_bswap32(x)
#define rte_cpu_to_be_64(x) rte_bswap64(x)
#define rte_le_to_cpu_16(x) (x)
#define rte_le_to_cpu_32(x) (x)
#define rte_le_to_cpu_64(x) (x)
#define rte_be_to_cpu_16(x) rte_bswap16(x)
#define rte_be_to_cpu_32(x) rte_bswap32(x)
#define rte_be_to_cpu_64(x) rte_bswap64(x)
#else /* RTE_BIG_ENDIAN */
#define rte_cpu_to_le_16(x) rte_bswap16(x)
#define rte_cpu_to_le_32(x) rte_bswap32(x)
#define rte_cpu_to_le_64(x) rte_bswap64(x)
#define rte_cpu_to_be_16(x) (x)
#define rte_cpu_to_be_32(x) (x)
#define rte_cpu_to_be_64(x) (x)
#define rte_le_to_cpu_16(x) rte_bswap16(x)
#define rte_le_to_cpu_32(x) rte_bswap32(x)
#define rte_le_to_cpu_64(x) rte_bswap64(x)
#define rte_be_to_cpu_16(x) (x)
#define rte_be_to_cpu_32(x) (x)
#define rte_be_to_cpu_64(x) (x)
#endif
#ifdef __cplusplus
}
#endif
#endif /* _RTE_BYTEORDER_PPC_64_H_ */
|
