rte_vect.h

       Generated automatically by Doxygen for DPDK from the source code.

DPDK                                             Version 24.11.2                                   rte_vect.h(3)

       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.

enumrte_vect_max_simd
       The max SIMD bitwidth value to limit vector path selection.

       EnumeratorRTE_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.

uint16_trte_vect_get_max_simd_bitwidth(void)
       Get the supported SIMD bitwidth.

       Returns
           uint16_t bitwidth.

   intrte_vect_set_max_simd_bitwidth(uint16_tbitwidth)
       Set the supported SIMD bitwidth. This API should only be called once at initialization, before EAL init.

       Parametersbitwidth uint16_t bitwidth.

       Returns

           • 0 on success.

           • -EINVAL on invalid bitwidth parameter.

           • -EPERM if bitwidth is forced.

       rte_vect.h

       #include <stdint.h>

   Typedefstypedef uint8_t rte_v64u8_ttypedef uint16_t rte_v64u16_ttypedef uint32_t rte_v64u32_ttypedef uint8_t rte_v128u8_ttypedef uint16_t rte_v128u16_ttypedef uint32_t rte_v128u32_ttypedef uint64_t rte_v128u64_ttypedef uint8_t rte_v256u8_ttypedef uint16_t rte_v256u16_ttypedef uint32_t rte_v256u32_ttypedef uint64_t rte_v256u64_ttypedef int8_t rte_v64s8_ttypedef int16_t rte_v64s16_ttypedef int32_t rte_v64s32_ttypedef int8_t rte_v128s8_ttypedef int16_t rte_v128s16_ttypedef int32_t rte_v128s32_ttypedef int64_t rte_v128s64_ttypedef int8_t rte_v256s8_ttypedef int16_t rte_v256s16_ttypedef int32_t rte_v256s32_ttypedef int64_t rte_v256s64_tEnumerations
       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)

typedefuint8_trte_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.

   typedefuint16_trte_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.

   typedefuint32_trte_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.

   typedefuint8_trte_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.

   typedefuint16_trte_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.

   typedefuint32_trte_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.

   typedefuint64_trte_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.

   typedefuint8_trte_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.

   typedefuint16_trte_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.

   typedefuint32_trte_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.

   typedefuint64_trte_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.

   typedefint8_trte_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.

   typedefint16_trte_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.

   typedefint32_trte_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.

   typedefint8_trte_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.

   typedefint16_trte_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.

   typedefint32_trte_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.

   typedefint64_trte_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.

   typedefint8_trte_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.

   typedefint16_trte_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.

   typedefint32_trte_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.

   typedefint64_trte_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.