rte_memcpy.h - Man Page
Synopsis
Functions
static void rte_mov16 (uint8_t *dst, const uint8_t *src)
static void rte_mov32 (uint8_t *dst, const uint8_t *src)
static void rte_mov48 (uint8_t *dst, const uint8_t *src)
static void rte_mov64 (uint8_t *dst, const uint8_t *src)
static void rte_mov128 (uint8_t *dst, const uint8_t *src)
static void rte_mov256 (uint8_t *dst, const uint8_t *src)
static void * rte_memcpy (void *dst, const void *src, size_t n)
Detailed Description
Functions for vectorised implementation of memcpy().
Definition in file rte_memcpy.h.
Function Documentation
static void rte_mov16 (uint8_t * dst, const uint8_t * src) [inline], [static]
Copy 16 bytes from one location to another using optimised instructions. The locations should not overlap.
- Parameters
dst Pointer to the destination of the data.
src Pointer to the source data.
static void rte_mov32 (uint8_t * dst, const uint8_t * src) [inline], [static]
Copy 32 bytes from one location to another using optimised instructions. The locations should not overlap.
- Parameters
dst Pointer to the destination of the data.
src Pointer to the source data.
static void rte_mov48 (uint8_t * dst, const uint8_t * src) [inline], [static]
Copy 48 bytes from one location to another using optimised instructions. The locations should not overlap.
- Parameters
dst Pointer to the destination of the data.
src Pointer to the source data.
static void rte_mov64 (uint8_t * dst, const uint8_t * src) [inline], [static]
Copy 64 bytes from one location to another using optimised instructions. The locations should not overlap.
- Parameters
dst Pointer to the destination of the data.
src Pointer to the source data.
static void rte_mov128 (uint8_t * dst, const uint8_t * src) [inline], [static]
Copy 128 bytes from one location to another using optimised instructions. The locations should not overlap.
- Parameters
dst Pointer to the destination of the data.
src Pointer to the source data.
static void rte_mov256 (uint8_t * dst, const uint8_t * src) [inline], [static]
Copy 256 bytes from one location to another using optimised instructions. The locations should not overlap.
- Parameters
dst Pointer to the destination of the data.
src Pointer to the source data.
static void * rte_memcpy (void * dst, const void * src, size_t n) [static]
Copy bytes from one location to another. The locations must not overlap.
- Note
This is implemented as a macro, so it's address should not be taken and care is needed as parameter expressions may be evaluated multiple times.
For x86 platforms to enable the AVX-512 memcpy implementation, set -DRTE_MEMCPY_AVX512 macro in CFLAGS, or define the RTE_MEMCPY_AVX512 macro explicitly in the source file before including the rte_memcpy header file.
- Parameters
dst Pointer to the destination of the data.
src Pointer to the source data.
n Number of bytes to copy.- Returns
Pointer to the destination data.
Author
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Referenced By
The man pages rte_memcpy(3), rte_mov128(3), rte_mov16(3), rte_mov256(3), rte_mov32(3), rte_mov48(3) and rte_mov64(3) are aliases of rte_memcpy.h(3).