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Annotation of sys/dev/raidframe/rf_parityscan.h, Revision 1.1.1.1

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_ */