diff options
author | Niklas Hallqvist <niklas@cvs.openbsd.org> | 1999-02-16 00:03:34 +0000 |
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committer | Niklas Hallqvist <niklas@cvs.openbsd.org> | 1999-02-16 00:03:34 +0000 |
commit | 086450a69044f3ede65845d9a616116db9a6d006 (patch) | |
tree | a91a7d8f967737b7eed23cb127849d08e3af4d63 /sys/dev/raidframe/rf_diskqueue.h | |
parent | 41fb84abc5659cc1a368cd59d7929ddf756c3297 (diff) |
Merge from NetBSD, mostly indentation
Diffstat (limited to 'sys/dev/raidframe/rf_diskqueue.h')
-rw-r--r-- | sys/dev/raidframe/rf_diskqueue.h | 317 |
1 files changed, 100 insertions, 217 deletions
diff --git a/sys/dev/raidframe/rf_diskqueue.h b/sys/dev/raidframe/rf_diskqueue.h index 20878553479..246c799d8a1 100644 --- a/sys/dev/raidframe/rf_diskqueue.h +++ b/sys/dev/raidframe/rf_diskqueue.h @@ -1,5 +1,5 @@ -/* $OpenBSD: rf_diskqueue.h,v 1.1 1999/01/11 14:29:17 niklas Exp $ */ -/* $NetBSD: rf_diskqueue.h,v 1.1 1998/11/13 04:20:29 oster Exp $ */ +/* $OpenBSD: rf_diskqueue.h,v 1.2 1999/02/16 00:02:40 niklas Exp $ */ +/* $NetBSD: rf_diskqueue.h,v 1.3 1999/02/05 00:06:09 oster Exp $ */ /* * Copyright (c) 1995 Carnegie-Mellon University. * All rights reserved. @@ -34,131 +34,6 @@ * see comments in rf_diskqueue.c * ****************************************************************************************/ -/* - * - * : - * - * Log: rf_diskqueue.h,v - * Revision 1.31 1996/08/07 21:08:49 jimz - * b_proc -> kb_proc (IRIX complained) - * - * Revision 1.30 1996/06/18 20:53:11 jimz - * fix up disk queueing (remove configure routine, - * add shutdown list arg to create routines) - * - * Revision 1.29 1996/06/13 20:38:19 jimz - * fix queue type in DiskQueueData - * - * Revision 1.28 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 1.27 1996/06/07 22:26:27 jimz - * type-ify which_ru (RF_ReconUnitNum_t) - * - * Revision 1.26 1996/06/07 21:33:04 jimz - * begin using consistent types for sector numbers, - * stripe numbers, row+col numbers, recon unit numbers - * - * Revision 1.25 1996/06/06 17:29:12 jimz - * track arm position of last I/O dequeued - * - * Revision 1.24 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 1.23 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 1.22 1996/05/30 23:22:16 jimz - * bugfixes of serialization, timing problems - * more cleanup - * - * Revision 1.21 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 1.20 1996/05/24 22:17:04 jimz - * continue code + namespace cleanup - * typed a bunch of flags - * - * Revision 1.19 1996/05/24 01:59:45 jimz - * another checkpoint in code cleanup for release - * time to sync kernel tree - * - * Revision 1.18 1996/05/23 21:46:35 jimz - * checkpoint in code cleanup (release prep) - * lots of types, function names have been fixed - * - * Revision 1.17 1996/05/23 00:33:23 jimz - * code cleanup: move all debug decls to rf_options.c, all extern - * debug decls to rf_options.h, all debug vars preceded by rf_ - * - * Revision 1.16 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 1.15 1996/05/10 19:39:31 jimz - * add prev pointer to DiskQueueData - * - * Revision 1.14 1996/05/10 16:24:04 jimz - * mark old defines as deprecated, add RF_ defines - * - * Revision 1.13 1995/12/01 15:59:04 root - * added copyright info - * - * Revision 1.12 1995/11/07 16:26:44 wvcii - * added Peek() function to diskqueuesw - * - * Revision 1.11 1995/10/05 02:33:15 jimz - * made queue lens longs (less instructions to read :-) - * - * Revision 1.10 1995/10/04 07:07:07 wvcii - * queue->numOutstanding now valid for user & sim - * user tested & verified, sim untested - * - * Revision 1.9 1995/09/12 00:21:37 wvcii - * added support for tracing disk queue time - * - * Revision 1.8 95/04/24 13:25:51 holland - * rewrite to move disk queues, recon, & atomic RMW to kernel - * - * Revision 1.6.10.2 1995/04/03 20:13:56 holland - * added numOutstanding and maxOutstanding to support moving - * disk queues into kernel code - * - * Revision 1.6.10.1 1995/04/03 20:03:56 holland - * initial checkin on branch - * - * Revision 1.6 1995/03/03 18:34:33 rachad - * Simulator mechanism added - * - * Revision 1.5 1995/03/01 20:25:48 holland - * kernelization changes - * - * Revision 1.4 1995/02/03 22:31:36 holland - * many changes related to kernelization - * - * Revision 1.3 1995/02/01 14:25:19 holland - * began changes for kernelization: - * changed all instances of mutex_t and cond_t to DECLARE macros - * converted configuration code to use config structure - * - * Revision 1.2 1994/11/29 20:36:02 danner - * Added symbolic constants for io_type (e.g,IO_TYPE_READ) - * and support for READ_OP_WRITE - * - */ #ifndef _RF__RF_DISKQUEUE_H_ @@ -171,13 +46,11 @@ #include "rf_etimer.h" -#ifdef _KERNEL #if defined(__NetBSD__) #include "rf_netbsd.h" #elif defined(__OpenBSD__) #include "rf_openbsd.h" #endif -#endif #define RF_IO_NORMAL_PRIORITY 1 @@ -185,74 +58,88 @@ /* the data held by a disk queue entry */ struct RF_DiskQueueData_s { - RF_SectorNum_t sectorOffset; /* sector offset into the disk */ - RF_SectorCount_t numSector; /* number of sectors to read/write */ - RF_IoType_t type; /* read/write/nop */ - caddr_t buf; /* buffer pointer */ - RF_StripeNum_t parityStripeID; /* the RAID parity stripe ID this access is for */ - RF_ReconUnitNum_t which_ru; /* which RU within this parity stripe */ - int priority; /* the priority of this request */ - int (*CompleteFunc)(void *,int);/* function to be called upon completion */ - int (*AuxFunc)(void *,...); /* function called upon completion of the first I/O of a Read_Op_Write pair*/ - void *argument; /* argument to be passed to CompleteFunc */ -#ifdef SIMULATE - RF_Owner_t owner; /* which task is responsible for this request */ -#endif /* SIMULATE */ - void *raidPtr; /* needed for simulation */ - RF_AccTraceEntry_t *tracerec; /* perf mon only */ - RF_Etimer_t qtime; /* perf mon only - time request is in queue */ - long entryTime; - RF_DiskQueueData_t *next; - RF_DiskQueueData_t *prev; - caddr_t buf2; /* for read-op-write */ - dev_t dev; /* the device number for in-kernel version */ - RF_DiskQueue_t *queue; /* the disk queue to which this req is targeted */ - RF_DiskQueueDataFlags_t flags; /* flags controlling operation */ - -#ifdef KERNEL - struct proc *b_proc; /* the b_proc from the original bp passed into the driver for this I/O */ - struct buf *bp; /* a bp to use to get this I/O done */ -#endif /* KERNEL */ + RF_SectorNum_t sectorOffset; /* sector offset into the disk */ + RF_SectorCount_t numSector; /* number of sectors to read/write */ + RF_IoType_t type; /* read/write/nop */ + caddr_t buf; /* buffer pointer */ + RF_StripeNum_t parityStripeID; /* the RAID parity stripe ID this + * access is for */ + RF_ReconUnitNum_t which_ru; /* which RU within this parity stripe */ + int priority; /* the priority of this request */ + int (*CompleteFunc) (void *, int); /* function to be called upon + * completion */ + int (*AuxFunc) (void *,...); /* function called upon + * completion of the first I/O + * of a Read_Op_Write pair */ + void *argument; /* argument to be passed to CompleteFunc */ + void *raidPtr; /* needed for simulation */ + RF_AccTraceEntry_t *tracerec; /* perf mon only */ + RF_Etimer_t qtime; /* perf mon only - time request is in queue */ + long entryTime; + RF_DiskQueueData_t *next; + RF_DiskQueueData_t *prev; + caddr_t buf2; /* for read-op-write */ + dev_t dev; /* the device number for in-kernel version */ + RF_DiskQueue_t *queue; /* the disk queue to which this req is + * targeted */ + RF_DiskQueueDataFlags_t flags; /* flags controlling operation */ + + struct proc *b_proc; /* the b_proc from the original bp passed into + * the driver for this I/O */ + struct buf *bp; /* a bp to use to get this I/O done */ }; - #define RF_LOCK_DISK_QUEUE 0x01 #define RF_UNLOCK_DISK_QUEUE 0x02 /* note: "Create" returns type-specific queue header pointer cast to (void *) */ struct RF_DiskQueueSW_s { - RF_DiskQueueType_t queueType; - void *(*Create)(RF_SectorCount_t, RF_AllocListElem_t *, RF_ShutdownList_t **); /* creation routine -- one call per queue in system */ - void (*Enqueue)(void *,RF_DiskQueueData_t * ,int); /* enqueue routine */ - RF_DiskQueueData_t *(*Dequeue)(void *); /* dequeue routine */ - RF_DiskQueueData_t *(*Peek)(void *); /* peek at head of queue */ - - /* the rest are optional: they improve performance, but the driver will deal with it if they don't exist */ - int (*Promote)(void *, RF_StripeNum_t, RF_ReconUnitNum_t); /* promotes priority of tagged accesses */ + RF_DiskQueueType_t queueType; + void *(*Create) (RF_SectorCount_t, RF_AllocListElem_t *, RF_ShutdownList_t **); /* creation routine -- + * one call per queue in + * system */ + void (*Enqueue) (void *, RF_DiskQueueData_t *, int); /* enqueue routine */ + RF_DiskQueueData_t *(*Dequeue) (void *); /* dequeue routine */ + RF_DiskQueueData_t *(*Peek) (void *); /* peek at head of queue */ + + /* the rest are optional: they improve performance, but the driver + * will deal with it if they don't exist */ + int (*Promote) (void *, RF_StripeNum_t, RF_ReconUnitNum_t); /* promotes priority of + * tagged accesses */ }; struct RF_DiskQueue_s { - RF_DiskQueueSW_t *qPtr; /* access point to queue functions */ - void *qHdr; /* queue header, of whatever type */ - RF_DECLARE_MUTEX(mutex) /* mutex locking data structures */ - RF_DECLARE_COND(cond) /* condition variable for synchronization */ - long numOutstanding; /* number of I/Os currently outstanding on disk */ - long maxOutstanding; /* max # of I/Os that can be outstanding on a disk (in-kernel only) */ - int curPriority; /* the priority of accs all that are currently outstanding */ - long queueLength; /* number of requests in queue */ - RF_DiskQueueData_t *nextLockingOp; /* a locking op that has arrived at the head of the queue & is waiting for drainage */ - RF_DiskQueueData_t *unlockingOp; /* used at user level to communicate unlocking op b/w user (or dag exec) & disk threads */ - int numWaiting; /* number of threads waiting on this variable. user-level only */ - RF_DiskQueueFlags_t flags; /* terminate, locked */ - RF_Raid_t *raidPtr; /* associated array */ - dev_t dev; /* device number for kernel version */ - RF_SectorNum_t last_deq_sector; /* last sector number dequeued or dispatched */ - int row, col; /* debug only */ -#if (defined(__NetBSD__) || defined(__OpenBSD__)) && defined(_KERNEL) - struct raidcinfo *rf_cinfo; /* disks component info.. */ -#endif + RF_DiskQueueSW_t *qPtr; /* access point to queue functions */ + void *qHdr; /* queue header, of whatever type */ + RF_DECLARE_MUTEX(mutex) /* mutex locking data structures */ + RF_DECLARE_COND(cond) /* condition variable for + * synchronization */ + long numOutstanding; /* number of I/Os currently outstanding on + * disk */ + long maxOutstanding; /* max # of I/Os that can be outstanding on a + * disk (in-kernel only) */ + int curPriority; /* the priority of accs all that are currently + * outstanding */ + long queueLength; /* number of requests in queue */ + RF_DiskQueueData_t *nextLockingOp; /* a locking op that has + * arrived at the head of the + * queue & is waiting for + * drainage */ + RF_DiskQueueData_t *unlockingOp; /* used at user level to + * communicate unlocking op + * b/w user (or dag exec) & + * disk threads */ + int numWaiting; /* number of threads waiting on this variable. + * user-level only */ + RF_DiskQueueFlags_t flags; /* terminate, locked */ + RF_Raid_t *raidPtr; /* associated array */ + dev_t dev; /* device number for kernel version */ + RF_SectorNum_t last_deq_sector; /* last sector number dequeued or + * dispatched */ + int row, col; /* debug only */ + struct raidcinfo *rf_cinfo; /* disks component info.. */ }; - -#define RF_DQ_LOCKED 0x02 /* no new accs allowed until queue is explicitly unlocked */ +#define RF_DQ_LOCKED 0x02 /* no new accs allowed until queue is + * explicitly unlocked */ /* macros setting & returning information about queues and requests */ #define RF_QUEUE_LOCKED(_q) ((_q)->flags & RF_DQ_LOCKED) @@ -273,43 +160,39 @@ struct RF_DiskQueue_s { (RF_QUEUE_EMPTY(_q_) || \ (!RF_QUEUE_FULL(_q_) && ((_r_)->priority >= (_q_)->curPriority))) -int rf_ConfigureDiskQueueSystem(RF_ShutdownList_t **listp); +int rf_ConfigureDiskQueueSystem(RF_ShutdownList_t ** listp); -void rf_TerminateDiskQueues(RF_Raid_t *raidPtr); +void rf_TerminateDiskQueues(RF_Raid_t * raidPtr); -int rf_ConfigureDiskQueues(RF_ShutdownList_t **listp, RF_Raid_t *raidPtr, - RF_Config_t *cfgPtr); +int +rf_ConfigureDiskQueues(RF_ShutdownList_t ** listp, RF_Raid_t * raidPtr, + RF_Config_t * cfgPtr); -void rf_DiskIOEnqueue(RF_DiskQueue_t *queue, RF_DiskQueueData_t *req, int pri); +void rf_DiskIOEnqueue(RF_DiskQueue_t * queue, RF_DiskQueueData_t * req, int pri); -#if !defined(KERNEL) && !defined(SIMULATE) -void rf_BroadcastOnQueue(RF_DiskQueue_t *queue); -#endif /* !KERNEL && !SIMULATE */ -#ifndef KERNEL -RF_DiskQueueData_t *rf_DiskIODequeue(RF_DiskQueue_t *queue); -#else /* !KERNEL */ -void rf_DiskIOComplete(RF_DiskQueue_t *queue, RF_DiskQueueData_t *req, int status); -#endif /* !KERNEL */ +void rf_DiskIOComplete(RF_DiskQueue_t * queue, RF_DiskQueueData_t * req, int status); -int rf_DiskIOPromote(RF_DiskQueue_t *queue, RF_StripeNum_t parityStripeID, - RF_ReconUnitNum_t which_ru); +int +rf_DiskIOPromote(RF_DiskQueue_t * queue, RF_StripeNum_t parityStripeID, + RF_ReconUnitNum_t which_ru); -RF_DiskQueueData_t *rf_CreateDiskQueueData(RF_IoType_t typ, - RF_SectorNum_t ssect, RF_SectorCount_t nsect, caddr_t buf, - RF_StripeNum_t parityStripeID, RF_ReconUnitNum_t which_ru, - int (*wakeF)(void *, int), - void *arg, RF_DiskQueueData_t *next, RF_AccTraceEntry_t *tracerec, - void *raidPtr, RF_DiskQueueDataFlags_t flags, void *kb_proc); +RF_DiskQueueData_t * +rf_CreateDiskQueueData(RF_IoType_t typ, + RF_SectorNum_t ssect, RF_SectorCount_t nsect, caddr_t buf, + RF_StripeNum_t parityStripeID, RF_ReconUnitNum_t which_ru, + int (*wakeF) (void *, int), + void *arg, RF_DiskQueueData_t * next, RF_AccTraceEntry_t * tracerec, + void *raidPtr, RF_DiskQueueDataFlags_t flags, void *kb_proc); -RF_DiskQueueData_t *rf_CreateDiskQueueDataFull(RF_IoType_t typ, - RF_SectorNum_t ssect, RF_SectorCount_t nsect, caddr_t buf, - RF_StripeNum_t parityStripeID, RF_ReconUnitNum_t which_ru, - int (*wakeF)(void *, int), - void *arg, RF_DiskQueueData_t *next, RF_AccTraceEntry_t *tracerec, - int priority, int (*AuxFunc)(void *,...), caddr_t buf2, - void *raidPtr, RF_DiskQueueDataFlags_t flags, void *kb_proc); + RF_DiskQueueData_t *rf_CreateDiskQueueDataFull(RF_IoType_t typ, + RF_SectorNum_t ssect, RF_SectorCount_t nsect, caddr_t buf, + RF_StripeNum_t parityStripeID, RF_ReconUnitNum_t which_ru, + int (*wakeF) (void *, int), + void *arg, RF_DiskQueueData_t * next, RF_AccTraceEntry_t * tracerec, + int priority, int (*AuxFunc) (void *,...), caddr_t buf2, + void *raidPtr, RF_DiskQueueDataFlags_t flags, void *kb_proc); -void rf_FreeDiskQueueData(RF_DiskQueueData_t *p); + void rf_FreeDiskQueueData(RF_DiskQueueData_t * p); -#endif /* !_RF__RF_DISKQUEUE_H_ */ +#endif /* !_RF__RF_DISKQUEUE_H_ */ |