5 #ifndef _RTE_BYTEORDER_H_
6 #define _RTE_BYTEORDER_H_
18 #ifdef RTE_EXEC_ENV_FREEBSD
19 #include <sys/endian.h>
20 #elif defined RTE_EXEC_ENV_LINUX
25 #include <rte_config.h>
30 #define RTE_BIG_ENDIAN 1
31 #define RTE_LITTLE_ENDIAN 2
32 #if defined __BYTE_ORDER__
33 #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
34 #define RTE_BYTE_ORDER RTE_BIG_ENDIAN
35 #elif __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
36 #define RTE_BYTE_ORDER RTE_LITTLE_ENDIAN
38 #elif defined __BYTE_ORDER
39 #if __BYTE_ORDER == __BIG_ENDIAN
40 #define RTE_BYTE_ORDER RTE_BIG_ENDIAN
41 #elif __BYTE_ORDER == __LITTLE_ENDIAN
42 #define RTE_BYTE_ORDER RTE_LITTLE_ENDIAN
44 #elif defined __BIG_ENDIAN__
45 #define RTE_BYTE_ORDER RTE_BIG_ENDIAN
46 #elif defined __LITTLE_ENDIAN__
47 #define RTE_BYTE_ORDER RTE_LITTLE_ENDIAN
48 #elif defined RTE_TOOLCHAIN_MSVC
49 #define RTE_BYTE_ORDER RTE_LITTLE_ENDIAN
51 #if !defined(RTE_BYTE_ORDER)
52 #error Unknown endianness.
55 #define RTE_STATIC_BSWAP16(v) \
56 ((((uint16_t)(v) & UINT16_C(0x00ff)) << 8) | \
57 (((uint16_t)(v) & UINT16_C(0xff00)) >> 8))
59 #define RTE_STATIC_BSWAP32(v) \
60 ((((uint32_t)(v) & UINT32_C(0x000000ff)) << 24) | \
61 (((uint32_t)(v) & UINT32_C(0x0000ff00)) << 8) | \
62 (((uint32_t)(v) & UINT32_C(0x00ff0000)) >> 8) | \
63 (((uint32_t)(v) & UINT32_C(0xff000000)) >> 24))
65 #define RTE_STATIC_BSWAP64(v) \
66 ((((uint64_t)(v) & UINT64_C(0x00000000000000ff)) << 56) | \
67 (((uint64_t)(v) & UINT64_C(0x000000000000ff00)) << 40) | \
68 (((uint64_t)(v) & UINT64_C(0x0000000000ff0000)) << 24) | \
69 (((uint64_t)(v) & UINT64_C(0x00000000ff000000)) << 8) | \
70 (((uint64_t)(v) & UINT64_C(0x000000ff00000000)) >> 8) | \
71 (((uint64_t)(v) & UINT64_C(0x0000ff0000000000)) >> 24) | \
72 (((uint64_t)(v) & UINT64_C(0x00ff000000000000)) >> 40) | \
73 (((uint64_t)(v) & UINT64_C(0xff00000000000000)) >> 56))
87 #if RTE_BYTE_ORDER == RTE_BIG_ENDIAN
88 #define RTE_BE16(v) (rte_be16_t)(v)
89 #define RTE_BE32(v) (rte_be32_t)(v)
90 #define RTE_BE64(v) (rte_be64_t)(v)
91 #define RTE_LE16(v) (rte_le16_t)(RTE_STATIC_BSWAP16(v))
92 #define RTE_LE32(v) (rte_le32_t)(RTE_STATIC_BSWAP32(v))
93 #define RTE_LE64(v) (rte_le64_t)(RTE_STATIC_BSWAP64(v))
94 #elif RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
95 #define RTE_BE16(v) (rte_be16_t)(RTE_STATIC_BSWAP16(v))
96 #define RTE_BE32(v) (rte_be32_t)(RTE_STATIC_BSWAP32(v))
97 #define RTE_BE64(v) (rte_be64_t)(RTE_STATIC_BSWAP64(v))
98 #define RTE_LE16(v) (rte_le16_t)(v)
99 #define RTE_LE32(v) (rte_le32_t)(v)
100 #define RTE_LE64(v) (rte_le64_t)(v)
102 #error Unsupported endianness.
125 static inline uint16_t
126 rte_constant_bswap16(uint16_t x)
128 return (uint16_t)RTE_STATIC_BSWAP16(x);
137 static inline uint32_t
138 rte_constant_bswap32(uint32_t x)
140 return (uint32_t)RTE_STATIC_BSWAP32(x);
149 static inline uint64_t
150 rte_constant_bswap64(uint64_t x)
152 return (uint64_t)RTE_STATIC_BSWAP64(x);
238 #ifdef RTE_FORCE_INTRINSICS
239 #ifndef RTE_TOOLCHAIN_MSVC
240 #define rte_bswap16(x) __builtin_bswap16(x)
242 #define rte_bswap32(x) __builtin_bswap32(x)
244 #define rte_bswap64(x) __builtin_bswap64(x)
246 #define rte_bswap16(x) _byteswap_ushort(x)
248 #define rte_bswap32(x) _byteswap_ulong(x)
250 #define rte_bswap64(x) _byteswap_uint64(x)
static uint16_t rte_be_to_cpu_16(rte_be16_t x)
static uint32_t rte_be_to_cpu_32(rte_be32_t x)
static uint64_t rte_bswap64(uint64_t x)
static uint16_t rte_le_to_cpu_16(rte_le16_t x)
static uint64_t rte_le_to_cpu_64(rte_le64_t x)
static rte_be32_t rte_cpu_to_be_32(uint32_t x)
static rte_be16_t rte_cpu_to_be_16(uint16_t x)
static uint64_t rte_be_to_cpu_64(rte_be64_t x)
static uint16_t rte_bswap16(uint16_t _x)
static rte_le16_t rte_cpu_to_le_16(uint16_t x)
static uint32_t rte_bswap32(uint32_t x)
static rte_be64_t rte_cpu_to_be_64(uint64_t x)
static rte_le32_t rte_cpu_to_le_32(uint32_t x)
static rte_le64_t rte_cpu_to_le_64(uint64_t x)
static uint32_t rte_le_to_cpu_32(rte_le32_t x)