Provided by: dpdk-doc_24.11.2-2_all 
NAME
rte_vect.h
SYNOPSIS
#include <stdint.h>
Typedefs
typedef uint8_t rte_v64u8_t
typedef uint16_t rte_v64u16_t
typedef uint32_t rte_v64u32_t
typedef uint8_t rte_v128u8_t
typedef uint16_t rte_v128u16_t
typedef uint32_t rte_v128u32_t
typedef uint64_t rte_v128u64_t
typedef uint8_t rte_v256u8_t
typedef uint16_t rte_v256u16_t
typedef uint32_t rte_v256u32_t
typedef uint64_t rte_v256u64_t
typedef int8_t rte_v64s8_t
typedef int16_t rte_v64s16_t
typedef int32_t rte_v64s32_t
typedef int8_t rte_v128s8_t
typedef int16_t rte_v128s16_t
typedef int32_t rte_v128s32_t
typedef int64_t rte_v128s64_t
typedef int8_t rte_v256s8_t
typedef int16_t rte_v256s16_t
typedef int32_t rte_v256s32_t
typedef int64_t rte_v256s64_t
Enumerations
enum rte_vect_max_simd { RTE_VECT_SIMD_DISABLED = 64, RTE_VECT_SIMD_128 = 128, RTE_VECT_SIMD_256 = 256,
RTE_VECT_SIMD_512 = 512, RTE_VECT_SIMD_MAX = INT16_MAX + 1 }
Functions
uint16_t rte_vect_get_max_simd_bitwidth (void)
int rte_vect_set_max_simd_bitwidth (uint16_t bitwidth)
Detailed Description
SIMD vector types and control
This file defines types to use vector instructions with generic C code and APIs to enable the code using
them.
Definition in file rte_vect.h.
Typedef Documentation
typedef uint8_t rte_v64u8_t
64 bits vector size to use with unsigned 8 bits elements.
a = (rte_v64u8_t){ a0, a1, a2, a3, a4, a5, a6, a7 }
Definition at line 31 of file rte_vect.h.
typedef uint16_t rte_v64u16_t
64 bits vector size to use with unsigned 16 bits elements.
a = (rte_v64u16_t){ a0, a1, a2, a3 }
Definition at line 38 of file rte_vect.h.
typedef uint32_t rte_v64u32_t
64 bits vector size to use with unsigned 32 bits elements.
a = (rte_v64u32_t){ a0, a1 }
Definition at line 45 of file rte_vect.h.
typedef uint8_t rte_v128u8_t
128 bits vector size to use with unsigned 8 bits elements.
a = (rte_v128u8_t){ a00, a01, a02, a03, a04, a05, a06, a07, a08, a09, a10, a11, a12, a13, a14, a15 }
Definition at line 53 of file rte_vect.h.
typedef uint16_t rte_v128u16_t
128 bits vector size to use with unsigned 16 bits elements.
a = (rte_v128u16_t){ a0, a1, a2, a3, a4, a5, a6, a7 }
Definition at line 60 of file rte_vect.h.
typedef uint32_t rte_v128u32_t
128 bits vector size to use with unsigned 32 bits elements.
a = (rte_v128u32_t){ a0, a1, a2, a3 }
Definition at line 67 of file rte_vect.h.
typedef uint64_t rte_v128u64_t
128 bits vector size to use with unsigned 64 bits elements.
a = (rte_v128u64_t){ a0, a1 }
Definition at line 74 of file rte_vect.h.
typedef uint8_t rte_v256u8_t
256 bits vector size to use with unsigned 8 bits elements.
a = (rte_v256u8_t){ a00, a01, a02, a03, a04, a05, a06, a07, a08, a09, a10, a11, a12, a13, a14, a15, a16,
a17, a18, a19, a20, a21, a22, a23, a24, a25, a26, a27, a28, a29, a30, a31 }
Definition at line 84 of file rte_vect.h.
typedef uint16_t rte_v256u16_t
256 bits vector size to use with unsigned 16 bits elements.
a = (rte_v256u16_t){ a00, a01, a02, a03, a04, a05, a06, a07, a08, a09, a10, a11, a12, a13, a14, a15 }
Definition at line 92 of file rte_vect.h.
typedef uint32_t rte_v256u32_t
256 bits vector size to use with unsigned 32 bits elements.
a = (rte_v256u32_t){ a0, a1, a2, a3, a4, a5, a6, a7 }
Definition at line 99 of file rte_vect.h.
typedef uint64_t rte_v256u64_t
256 bits vector size to use with unsigned 64 bits elements.
a = (rte_v256u64_t){ a0, a1, a2, a3 }
Definition at line 106 of file rte_vect.h.
typedef int8_t rte_v64s8_t
64 bits vector size to use with 8 bits elements.
a = (rte_v64s8_t){ a0, a1, a2, a3, a4, a5, a6, a7 }
Definition at line 116 of file rte_vect.h.
typedef int16_t rte_v64s16_t
64 bits vector size to use with 16 bits elements.
a = (rte_v64s16_t){ a0, a1, a2, a3 }
Definition at line 123 of file rte_vect.h.
typedef int32_t rte_v64s32_t
64 bits vector size to use with 32 bits elements.
a = (rte_v64s32_t){ a0, a1 }
Definition at line 130 of file rte_vect.h.
typedef int8_t rte_v128s8_t
128 bits vector size to use with 8 bits elements.
a = (rte_v128s8_t){ a00, a01, a02, a03, a04, a05, a06, a07, a08, a09, a10, a11, a12, a13, a14, a15 }
Definition at line 138 of file rte_vect.h.
typedef int16_t rte_v128s16_t
128 bits vector size to use with 16 bits elements.
a = (rte_v128s16_t){ a0, a1, a2, a3, a4, a5, a6, a7 }
Definition at line 145 of file rte_vect.h.
typedef int32_t rte_v128s32_t
128 bits vector size to use with 32 bits elements.
a = (rte_v128s32_t){ a0, a1, a2, a3 }
Definition at line 152 of file rte_vect.h.
typedef int64_t rte_v128s64_t
128 bits vector size to use with 64 bits elements.
a = (rte_v128s64_t){ a1, a2 }
Definition at line 159 of file rte_vect.h.
typedef int8_t rte_v256s8_t
256 bits vector size to use with 8 bits elements.
a = (rte_v256s8_t){ a00, a01, a02, a03, a04, a05, a06, a07, a08, a09, a10, a11, a12, a13, a14, a15, a16,
a17, a18, a19, a20, a21, a22, a23, a24, a25, a26, a27, a28, a29, a30, a31 }
Definition at line 169 of file rte_vect.h.
typedef int16_t rte_v256s16_t
256 bits vector size to use with 16 bits elements.
a = (rte_v256s16_t){ a00, a01, a02, a03, a04, a05, a06, a07, a08, a09, a10, a11, a12, a13, a14, a15 }
Definition at line 177 of file rte_vect.h.
typedef int32_t rte_v256s32_t
256 bits vector size to use with 32 bits elements.
a = (rte_v256s32_t){ a0, a1, a2, a3, a4, a5, a6, a7 }
Definition at line 184 of file rte_vect.h.
typedef int64_t rte_v256s64_t
256 bits vector size to use with 64 bits elements.
a = (rte_v256s64_t){ a0, a1, a2, a3 }
Definition at line 191 of file rte_vect.h.
Enumeration Type Documentation
enum rte_vect_max_simd
The max SIMD bitwidth value to limit vector path selection.
Enumerator
RTE_VECT_SIMD_DISABLED
Limits path selection to scalar, disables all vector paths.
RTE_VECT_SIMD_128
Limits path selection to SSE/NEON/Altivec or below.
RTE_VECT_SIMD_256
Limits path selection to AVX2 or below.
RTE_VECT_SIMD_512
Limits path selection to AVX512 or below.
RTE_VECT_SIMD_MAX
Disables limiting by max SIMD bitwidth, allows all suitable paths. This value is used as it is a
large number and a power of 2.
Definition at line 198 of file rte_vect.h.
Function Documentation
uint16_t rte_vect_get_max_simd_bitwidth (void)
Get the supported SIMD bitwidth.
Returns
uint16_t bitwidth.
int rte_vect_set_max_simd_bitwidth (uint16_t bitwidth)
Set the supported SIMD bitwidth. This API should only be called once at initialization, before EAL init.
Parameters
bitwidth uint16_t bitwidth.
Returns
• 0 on success.
• -EINVAL on invalid bitwidth parameter.
• -EPERM if bitwidth is forced.
Author
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DPDK Version 24.11.2 rte_vect.h(3)