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60 lines
1.9 KiB
C
60 lines
1.9 KiB
C
/*
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* Copyright (C) 2011 Andrea Mazzoleni
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __RAID_H
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#define __RAID_H
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/****************************************************************************/
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/* raid */
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/**
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* Syndrome computation.
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*/
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void raid_gen(unsigned level, unsigned char** buffer, unsigned diskmax, unsigned size);
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/*
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* Recover failure of one data block.
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*/
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void raid5_recov_data(unsigned char** dptrs, unsigned diskmax, unsigned size, int faila);
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/*
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* Recover two failed data blocks.
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*/
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void raid6_recov_2data(unsigned char** dptrs, unsigned diskmax, unsigned size, int faila, int failb, unsigned char* zero);
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/*
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* Recover failure of one data block plus the P block.
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*/
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void raid6_recov_datap(unsigned char** dptrs, unsigned diskmax, unsigned size, int faila, unsigned char* zero);
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/**
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* Initializes the RAID system.
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*/
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void raid_init(void);
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/**
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* Internal specialized syndrome computation.
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*/
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void raid5_int32r2(unsigned char** dptr, unsigned diskmax, unsigned size);
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void raid5_mmxr2(unsigned char** dptr, unsigned diskmax, unsigned size);
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void raid5_sse2r2(unsigned char** dptr, unsigned diskmax, unsigned size);
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void raid6_int32r2(unsigned char** dptr, unsigned diskmax, unsigned size);
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void raid6_mmxr2(unsigned char** dptr, unsigned diskmax, unsigned size);
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void raid6_sse2r2(unsigned char** dptr, unsigned diskmax, unsigned size);
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#endif
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