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Annotation of sys/dev/raidframe/rf_parityscan.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: rf_parityscan.h,v 1.3 2002/12/16 07:01:04 tdeval Exp $        */
        !             2: /*     $NetBSD: rf_parityscan.h,v 1.3 1999/02/05 00:06:14 oster Exp $  */
        !             3:
        !             4: /*
        !             5:  * Copyright (c) 1995 Carnegie-Mellon University.
        !             6:  * All rights reserved.
        !             7:  *
        !             8:  * Author: Mark Holland
        !             9:  *
        !            10:  * Permission to use, copy, modify and distribute this software and
        !            11:  * its documentation is hereby granted, provided that both the copyright
        !            12:  * notice and this permission notice appear in all copies of the
        !            13:  * software, derivative works or modified versions, and any portions
        !            14:  * thereof, and that both notices appear in supporting documentation.
        !            15:  *
        !            16:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
        !            17:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
        !            18:  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
        !            19:  *
        !            20:  * Carnegie Mellon requests users of this software to return to
        !            21:  *
        !            22:  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
        !            23:  *  School of Computer Science
        !            24:  *  Carnegie Mellon University
        !            25:  *  Pittsburgh PA 15213-3890
        !            26:  *
        !            27:  * any improvements or extensions that they make and grant Carnegie the
        !            28:  * rights to redistribute these changes.
        !            29:  */
        !            30:
        !            31: #ifndef        _RF__RF_PARITYSCAN_H_
        !            32: #define        _RF__RF_PARITYSCAN_H_
        !            33:
        !            34: #include "rf_types.h"
        !            35: #include "rf_alloclist.h"
        !            36:
        !            37: int rf_RewriteParity(RF_Raid_t *);
        !            38: int rf_VerifyParityBasic(RF_Raid_t *, RF_RaidAddr_t, RF_PhysDiskAddr_t *, int,
        !            39:        RF_RaidAccessFlags_t);
        !            40: int rf_VerifyParity(RF_Raid_t *, RF_AccessStripeMap_t *, int,
        !            41:        RF_RaidAccessFlags_t);
        !            42: int rf_TryToRedirectPDA(RF_Raid_t *, RF_PhysDiskAddr_t *, int);
        !            43: int rf_VerifyDegrModeWrite(RF_Raid_t *, RF_AccessStripeMapHeader_t *);
        !            44: RF_DagHeader_t *rf_MakeSimpleDAG(RF_Raid_t *, int, int, char *,
        !            45:        int (*) (RF_DagNode_t *), int (*) (RF_DagNode_t *), char *,
        !            46:        RF_AllocListElem_t *, RF_RaidAccessFlags_t, int);
        !            47:
        !            48: #define        RF_DO_CORRECT_PARITY            1
        !            49: #define        RF_DONT_CORRECT_PARITY          0
        !            50:
        !            51: /*
        !            52:  * Return vals for VerifyParity operation.
        !            53:  *
        !            54:  * Ordering is important here.
        !            55:  */
        !            56: #define        RF_PARITY_OKAY                  0       /* Or no parity information. */
        !            57: #define        RF_PARITY_CORRECTED             1
        !            58: #define        RF_PARITY_BAD                   2
        !            59: #define        RF_PARITY_COULD_NOT_CORRECT     3
        !            60: #define        RF_PARITY_COULD_NOT_VERIFY      4
        !            61:
        !            62: #endif /* !_RF__RF_PARITYSCAN_H_ */