99a2dd955f
There is no reason for the DPDK libraries to all have 'librte_' prefix on the directory names. This prefix makes the directory names longer and also makes it awkward to add features referring to individual libraries in the build - should the lib names be specified with or without the prefix. Therefore, we can just remove the library prefix and use the library's unique name as the directory name, i.e. 'eal' rather than 'librte_eal' Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
117 lines
2.8 KiB
C
117 lines
2.8 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2010-2014 Intel Corporation
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*/
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#ifndef _RTE_MEMCPY_H_
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#define _RTE_MEMCPY_H_
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/**
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* @file
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*
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* Functions for vectorised implementation of memcpy().
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*/
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/**
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* Copy 16 bytes from one location to another using optimised
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* instructions. The locations should not overlap.
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*
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* @param dst
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* Pointer to the destination of the data.
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* @param src
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* Pointer to the source data.
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*/
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static inline void
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rte_mov16(uint8_t *dst, const uint8_t *src);
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/**
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* Copy 32 bytes from one location to another using optimised
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* instructions. The locations should not overlap.
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*
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* @param dst
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* Pointer to the destination of the data.
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* @param src
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* Pointer to the source data.
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*/
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static inline void
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rte_mov32(uint8_t *dst, const uint8_t *src);
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#ifdef __DOXYGEN__
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/**
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* Copy 48 bytes from one location to another using optimised
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* instructions. The locations should not overlap.
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*
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* @param dst
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* Pointer to the destination of the data.
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* @param src
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* Pointer to the source data.
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*/
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static inline void
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rte_mov48(uint8_t *dst, const uint8_t *src);
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#endif /* __DOXYGEN__ */
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/**
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* Copy 64 bytes from one location to another using optimised
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* instructions. The locations should not overlap.
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*
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* @param dst
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* Pointer to the destination of the data.
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* @param src
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* Pointer to the source data.
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*/
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static inline void
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rte_mov64(uint8_t *dst, const uint8_t *src);
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/**
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* Copy 128 bytes from one location to another using optimised
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* instructions. The locations should not overlap.
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*
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* @param dst
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* Pointer to the destination of the data.
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* @param src
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* Pointer to the source data.
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*/
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static inline void
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rte_mov128(uint8_t *dst, const uint8_t *src);
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/**
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* Copy 256 bytes from one location to another using optimised
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* instructions. The locations should not overlap.
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*
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* @param dst
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* Pointer to the destination of the data.
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* @param src
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* Pointer to the source data.
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*/
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static inline void
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rte_mov256(uint8_t *dst, const uint8_t *src);
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#ifdef __DOXYGEN__
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/**
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* Copy bytes from one location to another. The locations must not overlap.
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*
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* @note This is implemented as a macro, so it's address should not be taken
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* and care is needed as parameter expressions may be evaluated multiple times.
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*
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* @note For x86 platforms to enable the AVX-512 memcpy implementation, set
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* -DRTE_MEMCPY_AVX512 macro in CFLAGS, or define the RTE_MEMCPY_AVX512 macro
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* explicitly in the source file before including the rte_memcpy header file.
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*
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* @param dst
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* Pointer to the destination of the data.
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* @param src
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* Pointer to the source data.
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* @param n
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* Number of bytes to copy.
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* @return
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* Pointer to the destination data.
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*/
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static void *
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rte_memcpy(void *dst, const void *src, size_t n);
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#endif /* __DOXYGEN__ */
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#endif /* _RTE_MEMCPY_H_ */
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