diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/raid/pq.h | 96 | ||||
| -rw-r--r-- | include/linux/raid/pq_tables.h | 19 |
2 files changed, 27 insertions, 88 deletions
diff --git a/include/linux/raid/pq.h b/include/linux/raid/pq.h index 87e3cb55bf07..b3bf9339cd86 100644 --- a/include/linux/raid/pq.h +++ b/include/linux/raid/pq.h @@ -1,15 +1,13 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -/* -*- linux-c -*- ------------------------------------------------------- * +/* + * Copyright 2003 H. Peter Anvin - All Rights Reserved * - * Copyright 2003 H. Peter Anvin - All Rights Reserved - * - * ----------------------------------------------------------------------- */ - -#ifndef LINUX_RAID_RAID6_H -#define LINUX_RAID_RAID6_H + * Public interface to the RAID6 P/Q calculation and recovery library. + */ +#ifndef LINUX_RAID_PQ_H +#define LINUX_RAID_PQ_H -#include <linux/blkdev.h> -#include <linux/mm.h> +#include <linux/types.h> #define RAID6_MIN_DISKS 4 @@ -23,82 +21,4 @@ void raid6_recov_2data(int disks, size_t bytes, int faila, int failb, void raid6_recov_datap(int disks, size_t bytes, int faila, void **ptrs); -/* Routine choices */ -struct raid6_calls { - void (*gen_syndrome)(int, size_t, void **); - void (*xor_syndrome)(int, int, int, size_t, void **); - int (*valid)(void); /* Returns 1 if this routine set is usable */ - const char *name; /* Name of this routine set */ - int priority; /* Relative priority ranking if non-zero */ -}; - -/* Various routine sets */ -extern const struct raid6_calls raid6_intx1; -extern const struct raid6_calls raid6_intx2; -extern const struct raid6_calls raid6_intx4; -extern const struct raid6_calls raid6_intx8; -extern const struct raid6_calls raid6_mmxx1; -extern const struct raid6_calls raid6_mmxx2; -extern const struct raid6_calls raid6_sse1x1; -extern const struct raid6_calls raid6_sse1x2; -extern const struct raid6_calls raid6_sse2x1; -extern const struct raid6_calls raid6_sse2x2; -extern const struct raid6_calls raid6_sse2x4; -extern const struct raid6_calls raid6_altivec1; -extern const struct raid6_calls raid6_altivec2; -extern const struct raid6_calls raid6_altivec4; -extern const struct raid6_calls raid6_altivec8; -extern const struct raid6_calls raid6_avx2x1; -extern const struct raid6_calls raid6_avx2x2; -extern const struct raid6_calls raid6_avx2x4; -extern const struct raid6_calls raid6_avx512x1; -extern const struct raid6_calls raid6_avx512x2; -extern const struct raid6_calls raid6_avx512x4; -extern const struct raid6_calls raid6_s390vx8; -extern const struct raid6_calls raid6_vpermxor1; -extern const struct raid6_calls raid6_vpermxor2; -extern const struct raid6_calls raid6_vpermxor4; -extern const struct raid6_calls raid6_vpermxor8; -extern const struct raid6_calls raid6_lsx; -extern const struct raid6_calls raid6_lasx; -extern const struct raid6_calls raid6_rvvx1; -extern const struct raid6_calls raid6_rvvx2; -extern const struct raid6_calls raid6_rvvx4; -extern const struct raid6_calls raid6_rvvx8; - -struct raid6_recov_calls { - void (*data2)(int, size_t, int, int, void **); - void (*datap)(int, size_t, int, void **); - int (*valid)(void); - const char *name; - int priority; -}; - -extern const struct raid6_recov_calls raid6_recov_intx1; -extern const struct raid6_recov_calls raid6_recov_ssse3; -extern const struct raid6_recov_calls raid6_recov_avx2; -extern const struct raid6_recov_calls raid6_recov_avx512; -extern const struct raid6_recov_calls raid6_recov_s390xc; -extern const struct raid6_recov_calls raid6_recov_neon; -extern const struct raid6_recov_calls raid6_recov_lsx; -extern const struct raid6_recov_calls raid6_recov_lasx; -extern const struct raid6_recov_calls raid6_recov_rvv; - -extern const struct raid6_calls raid6_neonx1; -extern const struct raid6_calls raid6_neonx2; -extern const struct raid6_calls raid6_neonx4; -extern const struct raid6_calls raid6_neonx8; - -/* Algorithm list */ -extern const struct raid6_calls * const raid6_algos[]; -extern const struct raid6_recov_calls *const raid6_recov_algos[]; - -/* Galois field tables */ -extern const u8 raid6_gfmul[256][256] __attribute__((aligned(256))); -extern const u8 raid6_vgfmul[256][32] __attribute__((aligned(256))); -extern const u8 raid6_gfexp[256] __attribute__((aligned(256))); -extern const u8 raid6_gflog[256] __attribute__((aligned(256))); -extern const u8 raid6_gfinv[256] __attribute__((aligned(256))); -extern const u8 raid6_gfexi[256] __attribute__((aligned(256))); - -#endif /* LINUX_RAID_RAID6_H */ +#endif /* LINUX_RAID_PQ_H */ diff --git a/include/linux/raid/pq_tables.h b/include/linux/raid/pq_tables.h new file mode 100644 index 000000000000..7b1ebe675677 --- /dev/null +++ b/include/linux/raid/pq_tables.h @@ -0,0 +1,19 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright 2003 H. Peter Anvin - All Rights Reserved + * + * Galois field tables for the Linux RAID6 P/Q parity algorithm. + */ +#ifndef _LINUX_RAID_PQ_TABLES_H +#define _LINUX_RAID_PQ_TABLES_H + +#include <linux/types.h> + +extern const u8 raid6_gfmul[256][256] __attribute__((aligned(256))); +extern const u8 raid6_vgfmul[256][32] __attribute__((aligned(256))); +extern const u8 raid6_gfexp[256] __attribute__((aligned(256))); +extern const u8 raid6_gflog[256] __attribute__((aligned(256))); +extern const u8 raid6_gfinv[256] __attribute__((aligned(256))); +extern const u8 raid6_gfexi[256] __attribute__((aligned(256))); + +#endif /* _LINUX_RAID_PQ_TABLES_H */ |