diff options
Diffstat (limited to 'sys/dev/raidframe/rf_pq.h')
| -rw-r--r-- | sys/dev/raidframe/rf_pq.h | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/sys/dev/raidframe/rf_pq.h b/sys/dev/raidframe/rf_pq.h new file mode 100644 index 00000000000..52f816354fa --- /dev/null +++ b/sys/dev/raidframe/rf_pq.h @@ -0,0 +1,115 @@ +/* $OpenBSD: rf_pq.h,v 1.1 1999/01/11 14:29:39 niklas Exp $ */ +/* $NetBSD: rf_pq.h,v 1.1 1998/11/13 04:20:32 oster Exp $ */ +/* + * rf_pq.h + */ +/* + * Copyright (c) 1995 Carnegie-Mellon University. + * All rights reserved. + * + * Author: Daniel Stodolsky + * + * Permission to use, copy, modify and distribute this software and + * its documentation is hereby granted, provided that both the copyright + * notice and this permission notice appear in all copies of the + * software, derivative works or modified versions, and any portions + * thereof, and that both notices appear in supporting documentation. + * + * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" + * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND + * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * Carnegie Mellon requests users of this software to return to + * + * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU + * School of Computer Science + * Carnegie Mellon University + * Pittsburgh PA 15213-3890 + * + * any improvements or extensions that they make and grant Carnegie the + * rights to redistribute these changes. + */ +/* + * : + * Log: rf_pq.h,v + * Revision 1.9 1996/07/31 15:35:05 jimz + * evenodd changes; bugfixes for double-degraded archs, generalize + * some formerly PQ-only functions + * + * Revision 1.8 1996/07/27 23:36:08 jimz + * Solaris port of simulator + * + * Revision 1.7 1996/06/03 23:28:26 jimz + * more bugfixes + * check in tree to sync for IPDS runs with current bugfixes + * there still may be a problem with threads in the script test + * getting I/Os stuck- not trivially reproducible (runs ~50 times + * in a row without getting stuck) + * + * Revision 1.6 1996/06/02 17:31:48 jimz + * Moved a lot of global stuff into array structure, where it belongs. + * Fixed up paritylogging, pss modules in this manner. Some general + * code cleanup. Removed lots of dead code, some dead files. + * + * Revision 1.5 1996/05/31 22:26:54 jimz + * fix a lot of mapping problems, memory allocation problems + * found some weird lock issues, fixed 'em + * more code cleanup + * + * Revision 1.4 1996/05/27 18:56:37 jimz + * more code cleanup + * better typing + * compiles in all 3 environments + * + * Revision 1.3 1996/05/24 22:17:04 jimz + * continue code + namespace cleanup + * typed a bunch of flags + * + * Revision 1.2 1996/05/23 21:46:35 jimz + * checkpoint in code cleanup (release prep) + * lots of types, function names have been fixed + * + * Revision 1.1 1996/05/18 19:56:21 jimz + * Initial revision + * + */ + +#ifndef _RF__RF_PQ_H_ +#define _RF__RF_PQ_H_ + +#include "rf_archs.h" + +extern RF_RedFuncs_t rf_pFuncs; +extern RF_RedFuncs_t rf_pRecoveryFuncs; + +int rf_RegularONPFunc(RF_DagNode_t *node); +int rf_SimpleONPFunc(RF_DagNode_t *node); +int rf_RecoveryPFunc(RF_DagNode_t *node); +int rf_RegularPFunc(RF_DagNode_t *node); + +#if (RF_INCLUDE_DECL_PQ > 0) || (RF_INCLUDE_RAID6 > 0) + +extern RF_RedFuncs_t rf_qFuncs; +extern RF_RedFuncs_t rf_qRecoveryFuncs; +extern RF_RedFuncs_t rf_pqRecoveryFuncs; + +void rf_PQDagSelect(RF_Raid_t *raidPtr, RF_IoType_t type, + RF_AccessStripeMap_t *asmap, RF_VoidFuncPtr *createFunc); +RF_CREATE_DAG_FUNC_DECL(rf_PQCreateLargeWriteDAG); +int rf_RegularONQFunc(RF_DagNode_t *node); +int rf_SimpleONQFunc(RF_DagNode_t *node); +RF_CREATE_DAG_FUNC_DECL(rf_PQCreateSmallWriteDAG); +int rf_RegularPQFunc(RF_DagNode_t *node); +int rf_RegularQFunc(RF_DagNode_t *node); +void rf_Degraded_100_PQFunc(RF_DagNode_t *node); +int rf_RecoveryQFunc(RF_DagNode_t *node); +int rf_RecoveryPQFunc(RF_DagNode_t *node); +void rf_PQ_DegradedWriteQFunc(RF_DagNode_t *node); +void rf_IncQ(unsigned long *dest, unsigned long *buf, unsigned length, + unsigned coeff); +void rf_PQ_recover(unsigned long *pbuf, unsigned long *qbuf, unsigned long *abuf, + unsigned long *bbuf, unsigned length, unsigned coeff_a, unsigned coeff_b); + +#endif /* (RF_INCLUDE_DECL_PQ > 0) || (RF_INCLUDE_RAID6 > 0) */ + +#endif /* !_RF__RF_PQ_H_ */ |