126 lines
4.7 KiB
C
126 lines
4.7 KiB
C
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/* $NetBSD: rf_driver.h,v 1.1 1998/11/13 04:20:29 oster Exp $ */
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/*
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* rf_driver.h
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*/
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/*
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* Copyright (c) 1996 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Jim Zelenka
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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/*
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* :
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* Log: rf_driver.h,v
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* Revision 1.11 1996/07/11 19:08:00 jimz
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* generalize reconstruction mechanism
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* allow raid1 reconstructs via copyback (done with array
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* quiesced, not online, therefore not disk-directed)
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*
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* Revision 1.10 1996/06/10 14:18:58 jimz
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* move user, throughput stats into per-array structure
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*
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* Revision 1.9 1996/06/07 21:33:04 jimz
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* begin using consistent types for sector numbers,
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* stripe numbers, row+col numbers, recon unit numbers
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*
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* Revision 1.8 1996/06/05 18:06:02 jimz
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* Major code cleanup. The Great Renaming is now done.
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* Better modularity. Better typing. Fixed a bunch of
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* synchronization bugs. Made a lot of global stuff
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* per-desc or per-array. Removed dead code.
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*
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* Revision 1.7 1996/05/30 11:29:41 jimz
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* Numerous bug fixes. Stripe lock release code disagreed with the taking code
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* about when stripes should be locked (I made it consistent: no parity, no lock)
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* There was a lot of extra serialization of I/Os which I've removed- a lot of
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* it was to calculate values for the cache code, which is no longer with us.
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* More types, function, macro cleanup. Added code to properly quiesce the array
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* on shutdown. Made a lot of stuff array-specific which was (bogusly) general
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* before. Fixed memory allocation, freeing bugs.
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*
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* Revision 1.6 1996/05/27 18:56:37 jimz
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* more code cleanup
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* better typing
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* compiles in all 3 environments
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*
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* Revision 1.5 1996/05/24 22:17:04 jimz
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* continue code + namespace cleanup
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* typed a bunch of flags
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*
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* Revision 1.4 1996/05/24 04:28:55 jimz
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* release cleanup ckpt
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*
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* Revision 1.3 1996/05/24 01:59:45 jimz
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* another checkpoint in code cleanup for release
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* time to sync kernel tree
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*
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* Revision 1.2 1996/05/23 21:46:35 jimz
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* checkpoint in code cleanup (release prep)
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* lots of types, function names have been fixed
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*
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* Revision 1.1 1996/05/18 19:56:10 jimz
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* Initial revision
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*
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*/
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#ifndef _RF__RF_DRIVER_H_
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#define _RF__RF_DRIVER_H_
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#include "rf_threadstuff.h"
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#include "rf_types.h"
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RF_DECLARE_EXTERN_MUTEX(rf_printf_mutex)
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int rf_BootRaidframe(void);
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int rf_UnbootRaidframe(void);
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int rf_Shutdown(RF_Raid_t *raidPtr);
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int rf_Configure(RF_Raid_t *raidPtr, RF_Config_t *cfgPtr);
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RF_RaidAccessDesc_t *rf_AllocRaidAccDesc(RF_Raid_t *raidPtr, RF_IoType_t type,
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RF_RaidAddr_t raidAddress, RF_SectorCount_t numBlocks, caddr_t bufPtr,
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void *bp, RF_DagHeader_t **paramDAG, RF_AccessStripeMapHeader_t **paramASM,
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RF_RaidAccessFlags_t flags, void (*cbF)(struct buf *), void *cbA,
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RF_AccessState_t *states);
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void rf_FreeRaidAccDesc(RF_RaidAccessDesc_t *desc);
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int rf_DoAccess(RF_Raid_t *raidPtr, RF_IoType_t type, int async_flag,
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RF_RaidAddr_t raidAddress, RF_SectorCount_t numBlocks, caddr_t bufPtr,
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void *bp_in, RF_DagHeader_t **paramDAG,
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RF_AccessStripeMapHeader_t **paramASM, RF_RaidAccessFlags_t flags,
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RF_RaidAccessDesc_t **paramDesc, void (*cbF)(struct buf *), void *cbA);
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int rf_SetReconfiguredMode(RF_Raid_t *raidPtr, RF_RowCol_t row,
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RF_RowCol_t col);
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int rf_FailDisk(RF_Raid_t *raidPtr, RF_RowCol_t frow, RF_RowCol_t fcol,
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int initRecon);
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#ifdef SIMULATE
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void rf_ScheduleContinueReconstructFailedDisk(RF_RaidReconDesc_t *reconDesc);
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#endif /* SIMULATE */
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void rf_SignalQuiescenceLock(RF_Raid_t *raidPtr, RF_RaidReconDesc_t *reconDesc);
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int rf_SuspendNewRequestsAndWait(RF_Raid_t *raidPtr);
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void rf_ResumeNewRequests(RF_Raid_t *raidPtr);
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void rf_StartThroughputStats(RF_Raid_t *raidPtr);
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void rf_StartUserStats(RF_Raid_t *raidPtr);
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void rf_StopUserStats(RF_Raid_t *raidPtr);
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void rf_UpdateUserStats(RF_Raid_t *raidPtr, int rt, int numsect);
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void rf_PrintUserStats(RF_Raid_t *raidPtr);
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#endif /* !_RF__RF_DRIVER_H_ */
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