snapraid/raid/internal.h

/*
 * Copyright (C) 2013 Andrea Mazzoleni
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#ifndef __RAID_INTERNAL_H
#define __RAID_INTERNAL_H

/*
 * Includes anything required for compatibility.
 */
#include "../portable.h"
#define BUG_ON(a) assert(!(a))

/*
 * Include the main header.
 */
#include "raid.h"

/*
 * Internal functions.
 *
 * These are intented to provide access for testing.
 */
void raid_invert(uint8_t *M, uint8_t *V, int n);
void raid_delta_gen(int nr, const int *id, const int *ip, int nd, size_t size, void **v);
void raid_rec1_par1(const int *id, int nd, size_t size, void **v);
void raid_rec2_par2(const int *id, const int *ip, int nd, size_t size, void **vv);
void raid_par1_int32(int nd, size_t size, void **vv);
void raid_par1_int64(int nd, size_t size, void **vv);
void raid_par1_sse2(int nd, size_t size, void **vv);
void raid_par2_int32(int nd, size_t size, void **vv);
void raid_par2_int64(int nd, size_t size, void **vv);
void raid_par2_sse2(int nd, size_t size, void **vv);
void raid_par2_sse2ext(int nd, size_t size, void **vv);
void raid_parz_int32(int nd, size_t size, void **vv);
void raid_parz_int64(int nd, size_t size, void **vv);
void raid_parz_sse2(int nd, size_t size, void **vv);
void raid_parz_sse2ext(int nd, size_t size, void **vv);
void raid_par3_int8(int nd, size_t size, void **vv);
void raid_par3_ssse3(int nd, size_t size, void **vv);
void raid_par3_ssse3ext(int nd, size_t size, void **vv);
void raid_par4_int8(int nd, size_t size, void **vv);
void raid_par4_ssse3(int nd, size_t size, void **vv);
void raid_par4_ssse3ext(int nd, size_t size, void **vv);
void raid_par5_int8(int nd, size_t size, void **vv);
void raid_par5_ssse3(int nd, size_t size, void **vv);
void raid_par5_ssse3ext(int nd, size_t size, void **vv);
void raid_par6_int8(int nd, size_t size, void **vv);
void raid_par6_ssse3(int nd, size_t size, void **vv);
void raid_par6_ssse3ext(int nd, size_t size, void **vv);
void raid_rec1_int8(int nr, const int *id, const int *ip, int nd, size_t size, void **vv);
void raid_rec2_int8(int nr, const int *id, const int *ip, int nd, size_t size, void **vv);
void raid_recX_int8(int nr, const int *id, const int *ip, int nd, size_t size, void **vv);
void raid_rec1_ssse3(int nr, const int *id, const int *ip, int nd, size_t size, void **vv);
void raid_rec2_ssse3(int nr, const int *id, const int *ip, int nd, size_t size, void **vv);
void raid_recX_ssse3(int nr, const int *id, const int *ip, int nd, size_t size, void **vv);

/*
 * Internal naming.
 *
 * These are intented to provide access for testing.
 */
const char *raid_par1_tag(void);
const char *raid_par2_tag(void);
const char *raid_parz_tag(void);
const char *raid_par3_tag(void);
const char *raid_par4_tag(void);
const char *raid_par5_tag(void);
const char *raid_par6_tag(void);
const char *raid_rec1_tag(void);
const char *raid_rec2_tag(void);
const char *raid_recX_tag(void);

/*
 * Internal forwarders.
 */
extern void (*raid_par_ptr[RAID_PARITY_MAX])(int nd, size_t size, void **vv);
extern void (*raid_par3_ptr)(int nd, size_t size, void **vv);
extern void (*raid_parz_ptr)(int nd, size_t size, void **vv);
extern void (*raid_rec_ptr[RAID_PARITY_MAX])(int nr, const int *id, const int *ip, int nd, size_t size, void **vv);

/*
 * Tables.
 */
extern const uint8_t raid_gfmul[256][256] __aligned(256);
extern const uint8_t raid_gfexp[256] __aligned(256);
extern const uint8_t raid_gfinv[256] __aligned(256);
extern const uint8_t raid_gfvandermonde[3][256] __aligned(256);
extern const uint8_t raid_gfcauchy[6][256] __aligned(256);
extern const uint8_t raid_gfcauchypshufb[251][4][2][16] __aligned(256);
extern const uint8_t raid_gfmulpshufb[256][2][16] __aligned(256);
#define gfmul raid_gfmul
#define gfexp raid_gfexp
#define gfinv raid_gfinv
#define gfvandermonde raid_gfvandermonde
#define gfcauchy raid_gfcauchy
#define gfcauchypshufb raid_gfcauchypshufb
#define gfmulpshufb raid_gfmulpshufb

/*
 * Assembler blocks.
 */
#define asm_begin() \
	do { } while (0)

#define asm_end() \
	asm volatile("sfence" : : : "memory")

#endif