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/*******************************************************************************
Copyright (c) 2019, Intel Corporation
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of Intel Corporation nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*******************************************************************************/
#ifndef CONSTANT_LOOKUP_H
#define CONSTANT_LOOKUP_H
#include "intel-ipsec-mb.h"
#ifdef SAFE_LOOKUP
#define LOOKUP8_SSE(_table, _idx, _size) \
lookup_8bit_sse(_table, _idx, _size)
#define LOOKUP8_AVX(_table, _idx, _size) \
lookup_8bit_avx(_table, _idx, _size)
#define LOOKUP16_SSE(_table, _idx, _size) \
lookup_16bit_sse(_table, _idx, _size)
#define LOOKUP16_AVX(_table, _idx, _size) \
lookup_16bit_avx(_table, _idx, _size)
#define LOOKUP32_SSE(_table, _idx, _size) \
lookup_32bit_sse(_table, _idx, _size)
#define LOOKUP32_AVX(_table, _idx, _size) \
lookup_32bit_avx(_table, _idx, _size)
#define LOOKUP64_SSE(_table, _idx, _size) \
lookup_64bit_sse(_table, _idx, _size)
#define LOOKUP64_AVX(_table, _idx, _size) \
lookup_64bit_avx(_table, _idx, _size)
#else
#define LOOKUP8_SSE(_table, _idx, _size) \
_table[_idx]
#define LOOKUP8_AVX(_table, _idx, _size) \
_table[_idx]
#define LOOKUP16_SSE(_table, _idx, _size) \
_table[_idx]
#define LOOKUP16_AVX(_table, _idx, _size) \
_table[_idx]
#define LOOKUP32_SSE(_table, _idx, _size) \
_table[_idx]
#define LOOKUP32_AVX(_table, _idx, _size) \
_table[_idx]
#define LOOKUP64_SSE(_table, _idx, _size) \
_table[_idx]
#define LOOKUP64_AVX(_table, _idx, _size) \
_table[_idx]
#endif
/*
* @brief Constant time SSE lookup function on variable size table
* with 8-bit values
*
* @param[in] table Pointer to the table to look up (16-byte aligned)
* @param[in] idx Index to look up
* @param[in] size Number of 8 bit elements in the table (multiple of 16)
*
* @return value to lookup
*/
uint8_t
lookup_8bit_sse(const void *table, const uint32_t idx, const uint32_t size);
/*
* @brief Constant time AVX lookup function on variable size table
* with 8-bit values
*
* @param[in] table Pointer to the table to look up (16-byte aligned)
* @param[in] idx Index to look up
* @param[in] size Number of 8 bit elements in the table (multiple of 16)
*
* @return value to lookup
*/
uint8_t
lookup_8bit_avx(const void *table, const uint32_t idx, const uint32_t size);
/*
* @brief Constant time SSE lookup function on variable size table
* with 16-bit values
*
* @param[in] table Pointer to the table to look up (16-byte aligned)
* @param[in] idx Index to look up
* @param[in] size Number of 16 bit elements in the table (multiple of 8)
*
* @return value to lookup
*/
uint16_t
lookup_16bit_sse(const void *table, const uint32_t idx, const uint32_t size);
/*
* @brief Constant time AVX lookup function on variable size table
* with 16-bit values
*
* @param[in] table Pointer to the table to look up (16-byte aligned)
* @param[in] idx Index to look up
* @param[in] size Number of 16 bit elements in the table (multiple of 8)
*
* @return value to lookup
*/
uint16_t
lookup_16bit_avx(const void *table, const uint32_t idx, const uint32_t size);
/*
* @brief Constant time SSE lookup function on
* variable size table with 32-bit values
*
* @param[in] table Pointer to the table to look up (16-byte aligned)
* @param[in] idx Index to look up
* @param[in] size Number of 32 bit elements in the table (multiple of 4)
*
* @return value to lookup
*/
uint32_t
lookup_32bit_sse(const void *table, const uint32_t idx, const uint32_t size);
/*
* @brief Constant time AVX lookup function on
* variable size table with 32-bit values
*
* @param[in] table Pointer to the table to look up (16-byte aligned)
* @param[in] idx Index to look up
* @param[in] size Number of 32 bit elements in the table (multiple of 4)
*
* @return value to lookup
*/
uint32_t
lookup_32bit_avx(const void *table, const uint32_t idx, const uint32_t size);
/*
* @brief Constant time SSE lookup function on
* variable size table with 64-bit values
*
* @param[in] table Pointer to the table to look up (16-byte aligned)
* @param[in] idx Index to look up
* @param[in] size Number of 64 bit elements in the table (multiple of 2)
*
* @return value to lookup
*/
uint64_t
lookup_64bit_sse(const void *table, const uint32_t idx, const uint32_t size);
/*
* @brief Constant time AVX lookup function on
* variable size table with 64-bit values
*
* @param[in] table Pointer to the table to look up (16-byte aligned)
* @param[in] idx Index to look up
* @param[in] size Number of 64 bit elements in the table (multiple of 2)
*
* @return value to lookup
*/
uint64_t
lookup_64bit_avx(const void *table, const uint32_t idx, const uint32_t size);
#endif /* CONSTANT_LOOKUP_H */
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