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authorNiklas Hallqvist <niklas@cvs.openbsd.org>1999-02-16 00:03:34 +0000
committerNiklas Hallqvist <niklas@cvs.openbsd.org>1999-02-16 00:03:34 +0000
commit086450a69044f3ede65845d9a616116db9a6d006 (patch)
treea91a7d8f967737b7eed23cb127849d08e3af4d63 /sys/dev/raidframe/rf_diskqueue.h
parent41fb84abc5659cc1a368cd59d7929ddf756c3297 (diff)
Merge from NetBSD, mostly indentation
Diffstat (limited to 'sys/dev/raidframe/rf_diskqueue.h')
-rw-r--r--sys/dev/raidframe/rf_diskqueue.h317
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_ */