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Diffstat (limited to 'sys/dev/raidframe/rf_dagfuncs.h')
| -rw-r--r-- | sys/dev/raidframe/rf_dagfuncs.h | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/sys/dev/raidframe/rf_dagfuncs.h b/sys/dev/raidframe/rf_dagfuncs.h new file mode 100644 index 00000000000..ab19b712421 --- /dev/null +++ b/sys/dev/raidframe/rf_dagfuncs.h @@ -0,0 +1,138 @@ +/* $OpenBSD: rf_dagfuncs.h,v 1.1 1999/01/11 14:29:11 niklas Exp $ */ +/* $NetBSD: rf_dagfuncs.h,v 1.1 1998/11/13 04:20:28 oster Exp $ */ +/* + * Copyright (c) 1995 Carnegie-Mellon University. + * All rights reserved. + * + * Author: Mark Holland, William V. Courtright II, Jim Zelenka + * + * 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. + */ + +/***************************************************************************************** + * + * dagfuncs.h -- header file for DAG node execution routines + * + ****************************************************************************************/ + +/* + * : + * Log: rf_dagfuncs.h,v + * Revision 1.17 1996/07/22 19:52:16 jimz + * switched node params to RF_DagParam_t, a union of + * a 64-bit int and a void *, for better portability + * attempted hpux port, but failed partway through for + * lack of a single C compiler capable of compiling all + * source files + * + * Revision 1.16 1996/06/10 11:55:47 jimz + * Straightened out some per-array/not-per-array distinctions, fixed + * a couple bugs related to confusion. Added shutdown lists. Removed + * layout shutdown function (now subsumed by shutdown lists). + * + * Revision 1.15 1996/06/06 17:27:20 jimz + * added another read mirror func (partitioning), changed names so dag + * creation routines can use the appropriate one + * + * Revision 1.14 1996/05/30 11:29:41 jimz + * Numerous bug fixes. Stripe lock release code disagreed with the taking code + * about when stripes should be locked (I made it consistent: no parity, no lock) + * There was a lot of extra serialization of I/Os which I've removed- a lot of + * it was to calculate values for the cache code, which is no longer with us. + * More types, function, macro cleanup. Added code to properly quiesce the array + * on shutdown. Made a lot of stuff array-specific which was (bogusly) general + * before. Fixed memory allocation, freeing bugs. + * + * Revision 1.13 1996/05/24 22:17:04 jimz + * continue code + namespace cleanup + * typed a bunch of flags + * + * Revision 1.12 1996/05/24 04:28:55 jimz + * release cleanup ckpt + * + * Revision 1.11 1996/05/23 21:46:35 jimz + * checkpoint in code cleanup (release prep) + * lots of types, function names have been fixed + * + * Revision 1.10 1996/05/18 19:51:34 jimz + * major code cleanup- fix syntax, make some types consistent, + * add prototypes, clean out dead code, et cetera + * + * Revision 1.9 1995/12/01 15:56:46 root + * added copyright info + * + * Revision 1.8 1995/11/07 16:25:23 wvcii + * added DiskUnlockFuncForThreads + * + */ + +#ifndef _RF__RF_DAGFUNCS_H_ +#define _RF__RF_DAGFUNCS_H_ + +int rf_ConfigureDAGFuncs(RF_ShutdownList_t **listp); +int rf_TerminateFunc(RF_DagNode_t *node); +int rf_TerminateUndoFunc(RF_DagNode_t *node); +int rf_DiskReadMirrorIdleFunc(RF_DagNode_t *node); +int rf_DiskReadMirrorPartitionFunc(RF_DagNode_t *node); +int rf_DiskReadMirrorUndoFunc(RF_DagNode_t *node); +int rf_ParityLogUpdateFunc(RF_DagNode_t *node); +int rf_ParityLogOverwriteFunc(RF_DagNode_t *node); +int rf_ParityLogUpdateUndoFunc(RF_DagNode_t *node); +int rf_ParityLogOverwriteUndoFunc(RF_DagNode_t *node); +int rf_NullNodeFunc(RF_DagNode_t *node); +int rf_NullNodeUndoFunc(RF_DagNode_t *node); +int rf_DiskReadFuncForThreads(RF_DagNode_t *node); +int rf_DiskWriteFuncForThreads(RF_DagNode_t *node); +int rf_DiskUndoFunc(RF_DagNode_t *node); +int rf_DiskUnlockFuncForThreads(RF_DagNode_t *node); +int rf_GenericWakeupFunc(RF_DagNode_t *node, int status); +int rf_RegularXorFunc(RF_DagNode_t *node); +int rf_SimpleXorFunc(RF_DagNode_t *node); +int rf_RecoveryXorFunc(RF_DagNode_t *node); +int rf_XorIntoBuffer(RF_Raid_t *raidPtr, RF_PhysDiskAddr_t *pda, char *srcbuf, + char *targbuf, void *bp); +int rf_bxor(char *src, char *dest, int len, void *bp); +int rf_longword_bxor(register unsigned long *src, register unsigned long *dest, + int len, void *bp); +int rf_longword_bxor3(register unsigned long *dest, register unsigned long *a, + register unsigned long *b, register unsigned long *c, int len, void *bp); +int rf_bxor3(unsigned char *dst, unsigned char *a, unsigned char *b, + unsigned char *c, unsigned long len, void *bp); + +/* function ptrs defined in ConfigureDAGFuncs() */ +extern int (*rf_DiskReadFunc)(RF_DagNode_t *); +extern int (*rf_DiskWriteFunc)(RF_DagNode_t *); +extern int (*rf_DiskReadUndoFunc)(RF_DagNode_t *); +extern int (*rf_DiskWriteUndoFunc)(RF_DagNode_t *); +extern int (*rf_DiskUnlockFunc)(RF_DagNode_t *); +extern int (*rf_DiskUnlockUndoFunc)(RF_DagNode_t *); +extern int (*rf_SimpleXorUndoFunc)(RF_DagNode_t *); +extern int (*rf_RegularXorUndoFunc)(RF_DagNode_t *); +extern int (*rf_RecoveryXorUndoFunc)(RF_DagNode_t *); + +/* macros for manipulating the param[3] in a read or write node */ +#define RF_CREATE_PARAM3(pri, lk, unlk, wru) (((RF_uint64)(((wru&0xFFFFFF)<<8)|((lk)?0x10:0)|((unlk)?0x20:0)|((pri)&0xF)) )) +#define RF_EXTRACT_PRIORITY(_x_) ((((unsigned) ((unsigned long)(_x_))) >> 0) & 0x0F) +#define RF_EXTRACT_LOCK_FLAG(_x_) ((((unsigned) ((unsigned long)(_x_))) >> 4) & 0x1) +#define RF_EXTRACT_UNLOCK_FLAG(_x_) ((((unsigned) ((unsigned long)(_x_))) >> 5) & 0x1) +#define RF_EXTRACT_RU(_x_) ((((unsigned) ((unsigned long)(_x_))) >> 8) & 0xFFFFFF) + +#endif /* !_RF__RF_DAGFUNCS_H_ */ |