diff options
Diffstat (limited to 'sys/dev/raidframe/rf_driver.h')
-rw-r--r-- | sys/dev/raidframe/rf_driver.h | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/sys/dev/raidframe/rf_driver.h b/sys/dev/raidframe/rf_driver.h new file mode 100644 index 00000000000..7c9a1c4084b --- /dev/null +++ b/sys/dev/raidframe/rf_driver.h @@ -0,0 +1,126 @@ +/* $OpenBSD: rf_driver.h,v 1.1 1999/01/11 14:29:19 niklas Exp $ */ +/* $NetBSD: rf_driver.h,v 1.1 1998/11/13 04:20:29 oster Exp $ */ +/* + * rf_driver.h + */ +/* + * Copyright (c) 1996 Carnegie-Mellon University. + * All rights reserved. + * + * Author: 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. + */ +/* + * : + * Log: rf_driver.h,v + * Revision 1.11 1996/07/11 19:08:00 jimz + * generalize reconstruction mechanism + * allow raid1 reconstructs via copyback (done with array + * quiesced, not online, therefore not disk-directed) + * + * Revision 1.10 1996/06/10 14:18:58 jimz + * move user, throughput stats into per-array structure + * + * Revision 1.9 1996/06/07 21:33:04 jimz + * begin using consistent types for sector numbers, + * stripe numbers, row+col numbers, recon unit numbers + * + * Revision 1.8 1996/06/05 18:06:02 jimz + * Major code cleanup. The Great Renaming is now done. + * Better modularity. Better typing. Fixed a bunch of + * synchronization bugs. Made a lot of global stuff + * per-desc or per-array. Removed dead code. + * + * Revision 1.7 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 1.6 1996/05/27 18:56:37 jimz + * more code cleanup + * better typing + * compiles in all 3 environments + * + * Revision 1.5 1996/05/24 22:17:04 jimz + * continue code + namespace cleanup + * typed a bunch of flags + * + * Revision 1.4 1996/05/24 04:28:55 jimz + * release cleanup ckpt + * + * Revision 1.3 1996/05/24 01:59:45 jimz + * another checkpoint in code cleanup for release + * time to sync kernel tree + * + * 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 19:56:10 jimz + * Initial revision + * + */ + +#ifndef _RF__RF_DRIVER_H_ +#define _RF__RF_DRIVER_H_ + +#include "rf_threadstuff.h" +#include "rf_types.h" + +RF_DECLARE_EXTERN_MUTEX(rf_printf_mutex) + +int rf_BootRaidframe(void); +int rf_UnbootRaidframe(void); +int rf_Shutdown(RF_Raid_t *raidPtr); +int rf_Configure(RF_Raid_t *raidPtr, RF_Config_t *cfgPtr); +RF_RaidAccessDesc_t *rf_AllocRaidAccDesc(RF_Raid_t *raidPtr, RF_IoType_t type, + RF_RaidAddr_t raidAddress, RF_SectorCount_t numBlocks, caddr_t bufPtr, + void *bp, RF_DagHeader_t **paramDAG, RF_AccessStripeMapHeader_t **paramASM, + RF_RaidAccessFlags_t flags, void (*cbF)(struct buf *), void *cbA, + RF_AccessState_t *states); +void rf_FreeRaidAccDesc(RF_RaidAccessDesc_t *desc); +int rf_DoAccess(RF_Raid_t *raidPtr, RF_IoType_t type, int async_flag, + RF_RaidAddr_t raidAddress, RF_SectorCount_t numBlocks, caddr_t bufPtr, + void *bp_in, RF_DagHeader_t **paramDAG, + RF_AccessStripeMapHeader_t **paramASM, RF_RaidAccessFlags_t flags, + RF_RaidAccessDesc_t **paramDesc, void (*cbF)(struct buf *), void *cbA); +int rf_SetReconfiguredMode(RF_Raid_t *raidPtr, RF_RowCol_t row, + RF_RowCol_t col); +int rf_FailDisk(RF_Raid_t *raidPtr, RF_RowCol_t frow, RF_RowCol_t fcol, + int initRecon); +#ifdef SIMULATE +void rf_ScheduleContinueReconstructFailedDisk(RF_RaidReconDesc_t *reconDesc); +#endif /* SIMULATE */ +void rf_SignalQuiescenceLock(RF_Raid_t *raidPtr, RF_RaidReconDesc_t *reconDesc); +int rf_SuspendNewRequestsAndWait(RF_Raid_t *raidPtr); +void rf_ResumeNewRequests(RF_Raid_t *raidPtr); +void rf_StartThroughputStats(RF_Raid_t *raidPtr); +void rf_StartUserStats(RF_Raid_t *raidPtr); +void rf_StopUserStats(RF_Raid_t *raidPtr); +void rf_UpdateUserStats(RF_Raid_t *raidPtr, int rt, int numsect); +void rf_PrintUserStats(RF_Raid_t *raidPtr); + +#endif /* !_RF__RF_DRIVER_H_ */ |