DPDK  20.11.3
Typedefs | Enumerations | Functions
rte_vect.h File Reference
#include <stdint.h>
#include <rte_compat.h>

Go to the source code of this file.

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

__rte_experimental uint16_t rte_vect_get_max_simd_bitwidth (void)
 
__rte_experimental 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

◆ rte_v64u8_t

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 27 of file rte_vect.h.

◆ rte_v64u16_t

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 34 of file rte_vect.h.

◆ rte_v64u32_t

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 41 of file rte_vect.h.

◆ rte_v128u8_t

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 49 of file rte_vect.h.

◆ rte_v128u16_t

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 56 of file rte_vect.h.

◆ rte_v128u32_t

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 63 of file rte_vect.h.

◆ rte_v128u64_t

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 70 of file rte_vect.h.

◆ rte_v256u8_t

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 80 of file rte_vect.h.

◆ rte_v256u16_t

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 88 of file rte_vect.h.

◆ rte_v256u32_t

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 95 of file rte_vect.h.

◆ rte_v256u64_t

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 102 of file rte_vect.h.

◆ rte_v64s8_t

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 112 of file rte_vect.h.

◆ rte_v64s16_t

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 119 of file rte_vect.h.

◆ rte_v64s32_t

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 126 of file rte_vect.h.

◆ rte_v128s8_t

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 134 of file rte_vect.h.

◆ rte_v128s16_t

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 141 of file rte_vect.h.

◆ rte_v128s32_t

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 148 of file rte_vect.h.

◆ rte_v128s64_t

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 155 of file rte_vect.h.

◆ rte_v256s8_t

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 165 of file rte_vect.h.

◆ rte_v256s16_t

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 173 of file rte_vect.h.

◆ rte_v256s32_t

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 180 of file rte_vect.h.

◆ rte_v256s64_t

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 187 of file rte_vect.h.

Enumeration Type Documentation

◆ 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 192 of file rte_vect.h.

Function Documentation

◆ rte_vect_get_max_simd_bitwidth()

__rte_experimental uint16_t rte_vect_get_max_simd_bitwidth ( void  )
Warning
EXPERIMENTAL: this API may change, or be removed, without prior notice

Get the supported SIMD bitwidth.

Returns
uint16_t bitwidth.

◆ rte_vect_set_max_simd_bitwidth()

__rte_experimental int rte_vect_set_max_simd_bitwidth ( uint16_t  bitwidth)
Warning
EXPERIMENTAL: this API may change, or be removed, without prior notice

Set the supported SIMD bitwidth. This API should only be called once at initialization, before EAL init.

Parameters
bitwidthuint16_t bitwidth.
Returns
  • 0 on success.
  • -EINVAL on invalid bitwidth parameter.
  • -EPERM if bitwidth is forced.