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authorniklas <niklas@openbsd.org>1999-02-16 00:02:21 +0000
committerniklas <niklas@openbsd.org>1999-02-16 00:02:21 +0000
commit107d1fd7ea8c7c9cb6d214c802eb1b5fac9fcf43 (patch)
tree098b83104ca2c705e48751ac59cd919aa52dc650 /sys/dev/raidframe/rf_paritylogging.c
parentAdd a RaidFrame bucket type (diff)
downloadwireguard-openbsd-107d1fd7ea8c7c9cb6d214c802eb1b5fac9fcf43.tar.xz
wireguard-openbsd-107d1fd7ea8c7c9cb6d214c802eb1b5fac9fcf43.zip
Merge from NetBSD, mostly indentation
Diffstat (limited to 'sys/dev/raidframe/rf_paritylogging.c')
-rw-r--r--sys/dev/raidframe/rf_paritylogging.c1713
1 files changed, 778 insertions, 935 deletions
diff --git a/sys/dev/raidframe/rf_paritylogging.c b/sys/dev/raidframe/rf_paritylogging.c
index 595612b3718..4cd95744629 100644
--- a/sys/dev/raidframe/rf_paritylogging.c
+++ b/sys/dev/raidframe/rf_paritylogging.c
@@ -1,5 +1,5 @@
-/* $OpenBSD: rf_paritylogging.c,v 1.1 1999/01/11 14:29:35 niklas Exp $ */
-/* $NetBSD: rf_paritylogging.c,v 1.1 1998/11/13 04:20:32 oster Exp $ */
+/* $OpenBSD: rf_paritylogging.c,v 1.2 1999/02/16 00:03:06 niklas Exp $ */
+/* $NetBSD: rf_paritylogging.c,v 1.3 1999/02/05 00:06:14 oster Exp $ */
/*
* Copyright (c) 1995 Carnegie-Mellon University.
* All rights reserved.
@@ -27,165 +27,6 @@
* rights to redistribute these changes.
*/
-/* :
- * Log: rf_paritylogging.c,v
- * Revision 1.42 1996/11/05 21:10:40 jimz
- * failed pda generalization
- *
- * Revision 1.41 1996/07/31 16:56:18 jimz
- * dataBytesPerStripe, sectorsPerDisk init arch-indep.
- *
- * Revision 1.40 1996/07/28 20:31:39 jimz
- * i386netbsd port
- * true/false fixup
- *
- * Revision 1.39 1996/07/18 22:57:14 jimz
- * port simulator to AIX
- *
- * Revision 1.38 1996/07/13 00:00:59 jimz
- * sanitized generalized reconstruction architecture
- * cleaned up head sep, rbuf problems
- *
- * Revision 1.37 1996/06/17 03:24:14 jimz
- * switch to new shutdown function typing
- *
- * Revision 1.36 1996/06/14 23:15:38 jimz
- * attempt to deal with thread GC problem
- *
- * Revision 1.35 1996/06/11 13:48:30 jimz
- * get it to compile in-kernel
- *
- * Revision 1.34 1996/06/11 10:16:35 jimz
- * Check return values on array configuration- back out if failed.
- * Reorder shutdown to avoid using deallocated resources.
- * Get rid of bogus join op in shutdown.
- *
- * Revision 1.33 1996/06/10 18:29:17 wvcii
- * fixed bug in rf_IdentifyStripeParityLogging
- * - added array initialization
- *
- * Revision 1.32 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 1.31 1996/06/07 22:26:27 jimz
- * type-ify which_ru (RF_ReconUnitNum_t)
- *
- * Revision 1.30 1996/06/07 21:33:04 jimz
- * begin using consistent types for sector numbers,
- * stripe numbers, row+col numbers, recon unit numbers
- *
- * Revision 1.29 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 1.28 1996/06/03 23:28:26 jimz
- * more bugfixes
- * check in tree to sync for IPDS runs with current bugfixes
- * there still may be a problem with threads in the script test
- * getting I/Os stuck- not trivially reproducible (runs ~50 times
- * in a row without getting stuck)
- *
- * Revision 1.27 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 1.26 1996/05/31 22:26:54 jimz
- * fix a lot of mapping problems, memory allocation problems
- * found some weird lock issues, fixed 'em
- * more code cleanup
- *
- * Revision 1.25 1996/05/30 23:22:16 jimz
- * bugfixes of serialization, timing problems
- * more cleanup
- *
- * Revision 1.24 1996/05/27 18:56:37 jimz
- * more code cleanup
- * better typing
- * compiles in all 3 environments
- *
- * Revision 1.23 1996/05/24 22:17:04 jimz
- * continue code + namespace cleanup
- * typed a bunch of flags
- *
- * Revision 1.22 1996/05/24 01:59:45 jimz
- * another checkpoint in code cleanup for release
- * time to sync kernel tree
- *
- * Revision 1.21 1996/05/23 21:46:35 jimz
- * checkpoint in code cleanup (release prep)
- * lots of types, function names have been fixed
- *
- * Revision 1.20 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 1.19 1996/05/20 16:16:30 jimz
- * switch to rf_{mutex,cond}_{init,destroy}
- *
- * Revision 1.18 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 1.17 1996/05/03 19:47:11 wvcii
- * added includes of new dag library
- *
- * Revision 1.16 1995/12/12 18:10:06 jimz
- * MIN -> RF_MIN, MAX -> RF_MAX, ASSERT -> RF_ASSERT
- * fix 80-column brain damage in comments
- *
- * Revision 1.15 1995/12/06 20:57:43 wvcii
- * added prototypes
- * reintegration of logs on shutdown now conditional on forceParityLogReint
- *
- * Revision 1.14 1995/11/30 16:06:42 wvcii
- * added copyright info
- *
- * Revision 1.13 1995/11/17 19:01:29 wvcii
- * added prototyping to MapParity
- *
- * Revision 1.12 1995/11/07 15:36:03 wvcii
- * changed ParityLoggingDagSelect prototype
- * function no longer returns numHdrSucc, numTermAnt
- *
- * Revision 1.11 1995/10/08 20:42:54 wvcii
- * lots of random debugging - debugging incomplete
- *
- * Revision 1.10 1995/09/07 01:26:55 jimz
- * Achive basic compilation in kernel. Kernel functionality
- * is not guaranteed at all, but it'll compile. Mostly. I hope.
- *
- * Revision 1.9 1995/09/06 19:21:17 wvcii
- * explicit shutdown (forced reintegration) for simulator version
- *
- * Revision 1.8 1995/07/08 18:19:16 rachad
- * Parity verifies can not be done in the simulator.
- *
- * Revision 1.7 1995/07/07 00:17:20 wvcii
- * this version free from deadlock, fails parity verification
- *
- * Revision 1.6 1995/06/23 13:39:59 robby
- * updeated to prototypes in rf_layout.h
- *
- * Revision 1.5 1995/06/09 13:14:56 wvcii
- * code is now nonblocking
- *
- * Revision 1.4 95/06/01 17:02:23 wvcii
- * code debug
- *
- * Revision 1.3 95/05/31 13:08:57 wvcii
- * code debug
- *
- * Revision 1.2 95/05/21 15:35:00 wvcii
- * code debug
- *
- *
- *
- */
/*
parity logging configuration, dag selection, and mapping is implemented here
@@ -215,10 +56,11 @@
#include "rf_shutdown.h"
typedef struct RF_ParityLoggingConfigInfo_s {
- RF_RowCol_t **stripeIdentifier; /* filled in at config time & used by IdentifyStripe */
-} RF_ParityLoggingConfigInfo_t;
+ RF_RowCol_t **stripeIdentifier; /* filled in at config time & used by
+ * IdentifyStripe */
+} RF_ParityLoggingConfigInfo_t;
-static void FreeRegionInfo(RF_Raid_t *raidPtr, RF_RegionId_t regionID);
+static void FreeRegionInfo(RF_Raid_t * raidPtr, RF_RegionId_t regionID);
static void rf_ShutdownParityLogging(RF_ThreadArg_t arg);
static void rf_ShutdownParityLoggingRegionInfo(RF_ThreadArg_t arg);
static void rf_ShutdownParityLoggingPool(RF_ThreadArg_t arg);
@@ -226,729 +68,724 @@ static void rf_ShutdownParityLoggingRegionBufferPool(RF_ThreadArg_t arg);
static void rf_ShutdownParityLoggingParityBufferPool(RF_ThreadArg_t arg);
static void rf_ShutdownParityLoggingDiskQueue(RF_ThreadArg_t arg);
-int rf_ConfigureParityLogging(
- RF_ShutdownList_t **listp,
- RF_Raid_t *raidPtr,
- RF_Config_t *cfgPtr)
+int
+rf_ConfigureParityLogging(
+ RF_ShutdownList_t ** listp,
+ RF_Raid_t * raidPtr,
+ RF_Config_t * cfgPtr)
{
- int i, j, startdisk, rc;
- RF_SectorCount_t totalLogCapacity, fragmentation, lastRegionCapacity;
- RF_SectorCount_t parityBufferCapacity, maxRegionParityRange;
- RF_RaidLayout_t *layoutPtr = &raidPtr->Layout;
- RF_ParityLoggingConfigInfo_t *info;
- RF_ParityLog_t *l=NULL, *next;
- caddr_t lHeapPtr;
-
- /*
- * We create multiple entries on the shutdown list here, since
- * this configuration routine is fairly complicated in and of
- * itself, and this makes backing out of a failed configuration
- * much simpler.
- */
-
- raidPtr->numSectorsPerLog = RF_DEFAULT_NUM_SECTORS_PER_LOG;
-
- /* create a parity logging configuration structure */
- RF_MallocAndAdd(info, sizeof(RF_ParityLoggingConfigInfo_t), (RF_ParityLoggingConfigInfo_t *), raidPtr->cleanupList);
- if (info == NULL)
- return(ENOMEM);
- layoutPtr->layoutSpecificInfo = (void *) info;
-
- RF_ASSERT(raidPtr->numRow == 1);
-
- /* the stripe identifier must identify the disks in each stripe,
- * IN THE ORDER THAT THEY APPEAR IN THE STRIPE.
- */
- info->stripeIdentifier = rf_make_2d_array((raidPtr->numCol), (raidPtr->numCol), raidPtr->cleanupList);
- if (info->stripeIdentifier == NULL)
- return(ENOMEM);
-
- startdisk = 0;
- for (i=0; i<(raidPtr->numCol); i++)
- {
- for (j=0; j<(raidPtr->numCol); j++)
- {
- info->stripeIdentifier[i][j] = (startdisk + j) % (raidPtr->numCol - 1);
+ int i, j, startdisk, rc;
+ RF_SectorCount_t totalLogCapacity, fragmentation, lastRegionCapacity;
+ RF_SectorCount_t parityBufferCapacity, maxRegionParityRange;
+ RF_RaidLayout_t *layoutPtr = &raidPtr->Layout;
+ RF_ParityLoggingConfigInfo_t *info;
+ RF_ParityLog_t *l = NULL, *next;
+ caddr_t lHeapPtr;
+
+ /*
+ * We create multiple entries on the shutdown list here, since
+ * this configuration routine is fairly complicated in and of
+ * itself, and this makes backing out of a failed configuration
+ * much simpler.
+ */
+
+ raidPtr->numSectorsPerLog = RF_DEFAULT_NUM_SECTORS_PER_LOG;
+
+ /* create a parity logging configuration structure */
+ RF_MallocAndAdd(info, sizeof(RF_ParityLoggingConfigInfo_t), (RF_ParityLoggingConfigInfo_t *), raidPtr->cleanupList);
+ if (info == NULL)
+ return (ENOMEM);
+ layoutPtr->layoutSpecificInfo = (void *) info;
+
+ RF_ASSERT(raidPtr->numRow == 1);
+
+ /* the stripe identifier must identify the disks in each stripe, IN
+ * THE ORDER THAT THEY APPEAR IN THE STRIPE. */
+ info->stripeIdentifier = rf_make_2d_array((raidPtr->numCol), (raidPtr->numCol), raidPtr->cleanupList);
+ if (info->stripeIdentifier == NULL)
+ return (ENOMEM);
+
+ startdisk = 0;
+ for (i = 0; i < (raidPtr->numCol); i++) {
+ for (j = 0; j < (raidPtr->numCol); j++) {
+ info->stripeIdentifier[i][j] = (startdisk + j) % (raidPtr->numCol - 1);
+ }
+ if ((--startdisk) < 0)
+ startdisk = raidPtr->numCol - 1 - 1;
}
- if ((--startdisk) < 0)
- startdisk = raidPtr->numCol-1-1;
- }
-
- /* fill in the remaining layout parameters */
- layoutPtr->numStripe = layoutPtr->stripeUnitsPerDisk;
- layoutPtr->bytesPerStripeUnit = layoutPtr->sectorsPerStripeUnit << raidPtr->logBytesPerSector;
- layoutPtr->numParityCol = 1;
- layoutPtr->numParityLogCol = 1;
- layoutPtr->numDataCol = raidPtr->numCol - layoutPtr->numParityCol - layoutPtr->numParityLogCol;
- layoutPtr->dataSectorsPerStripe = layoutPtr->numDataCol * layoutPtr->sectorsPerStripeUnit;
- layoutPtr->dataStripeUnitsPerDisk = layoutPtr->stripeUnitsPerDisk;
- raidPtr->sectorsPerDisk = layoutPtr->stripeUnitsPerDisk * layoutPtr->sectorsPerStripeUnit;
-
- raidPtr->totalSectors = layoutPtr->stripeUnitsPerDisk * layoutPtr->numDataCol * layoutPtr->sectorsPerStripeUnit;
-
- /* configure parity log parameters
-
- parameter comment/constraints
- ---------------- -------------------
- * numParityRegions all regions (except possibly last) of equal size
- * totalInCoreLogCapacity amount of memory in bytes available for in-core logs (default 1 MB)
- # numSectorsPerLog capacity of an in-core log in sectors (1 disk track)
- numParityLogs total number of in-core logs, should be at least numParityRegions
- regionLogCapacity size of a region log (except possibly last one) in sectors
- totalLogCapacity total amount of log space in sectors
-
- * denotes a user settable parameter.
- # logs are fixed to be the size of a disk track, value #defined in rf_paritylog.h
-
- */
-
- totalLogCapacity = layoutPtr->stripeUnitsPerDisk * layoutPtr->sectorsPerStripeUnit * layoutPtr->numParityLogCol;
- raidPtr->regionLogCapacity = totalLogCapacity / rf_numParityRegions;
- if (rf_parityLogDebug)
- printf("bytes per sector %d\n", raidPtr->bytesPerSector);
-
- /* reduce fragmentation within a disk region by adjusting the number of regions
- in an attempt to allow an integral number of logs to fit into a disk region */
- fragmentation = raidPtr->regionLogCapacity % raidPtr->numSectorsPerLog;
- if (fragmentation > 0)
- for (i = 1; i < (raidPtr->numSectorsPerLog / 2); i++)
- {
- if (((totalLogCapacity / (rf_numParityRegions + i)) % raidPtr->numSectorsPerLog) < fragmentation)
- {
- rf_numParityRegions++;
- raidPtr->regionLogCapacity = totalLogCapacity / rf_numParityRegions;
- fragmentation = raidPtr->regionLogCapacity % raidPtr->numSectorsPerLog;
- }
- if (((totalLogCapacity / (rf_numParityRegions - i)) % raidPtr->numSectorsPerLog) < fragmentation)
- {
- rf_numParityRegions--;
- raidPtr->regionLogCapacity = totalLogCapacity / rf_numParityRegions;
- fragmentation = raidPtr->regionLogCapacity % raidPtr->numSectorsPerLog;
- }
- }
- /* ensure integral number of regions per log */
- raidPtr->regionLogCapacity = (raidPtr->regionLogCapacity / raidPtr->numSectorsPerLog) * raidPtr->numSectorsPerLog;
-
- raidPtr->numParityLogs = rf_totalInCoreLogCapacity / (raidPtr->bytesPerSector * raidPtr->numSectorsPerLog);
- /* to avoid deadlock, must ensure that enough logs exist for each region to have one simultaneously */
- if (raidPtr->numParityLogs < rf_numParityRegions)
- raidPtr->numParityLogs = rf_numParityRegions;
-
- /* create region information structs */
- RF_Malloc(raidPtr->regionInfo, (rf_numParityRegions * sizeof(RF_RegionInfo_t)), (RF_RegionInfo_t *));
- if (raidPtr->regionInfo == NULL)
- return(ENOMEM);
-
- /* last region may not be full capacity */
- lastRegionCapacity = raidPtr->regionLogCapacity;
- while ((rf_numParityRegions - 1) * raidPtr->regionLogCapacity + lastRegionCapacity > totalLogCapacity)
- lastRegionCapacity = lastRegionCapacity - raidPtr->numSectorsPerLog;
-
- raidPtr->regionParityRange = raidPtr->sectorsPerDisk / rf_numParityRegions;
- maxRegionParityRange = raidPtr->regionParityRange;
+
+ /* fill in the remaining layout parameters */
+ layoutPtr->numStripe = layoutPtr->stripeUnitsPerDisk;
+ layoutPtr->bytesPerStripeUnit = layoutPtr->sectorsPerStripeUnit << raidPtr->logBytesPerSector;
+ layoutPtr->numParityCol = 1;
+ layoutPtr->numParityLogCol = 1;
+ layoutPtr->numDataCol = raidPtr->numCol - layoutPtr->numParityCol - layoutPtr->numParityLogCol;
+ layoutPtr->dataSectorsPerStripe = layoutPtr->numDataCol * layoutPtr->sectorsPerStripeUnit;
+ layoutPtr->dataStripeUnitsPerDisk = layoutPtr->stripeUnitsPerDisk;
+ raidPtr->sectorsPerDisk = layoutPtr->stripeUnitsPerDisk * layoutPtr->sectorsPerStripeUnit;
+
+ raidPtr->totalSectors = layoutPtr->stripeUnitsPerDisk * layoutPtr->numDataCol * layoutPtr->sectorsPerStripeUnit;
+
+ /* configure parity log parameters
+ *
+ * parameter comment/constraints ----------------
+ * ------------------- numParityRegions all regions (except
+ * possibly last) of equal size totalInCoreLogCapacity amount of
+ * memory in bytes available for in-core logs (default 1 MB) #
+ * numSectorsPerLog capacity of an in-core log in sectors (1
+ * disk track) numParityLogs total number of in-core logs,
+ * should be at least numParityRegions regionLogCapacity size of
+ * a region log (except possibly last one) in sectors totalLogCapacity
+ * total amount of log space in sectors
+ *
+ * denotes a user settable parameter. # logs are fixed to be the size of
+ * a disk track, value #defined in rf_paritylog.h
+ *
+ */
+
+ totalLogCapacity = layoutPtr->stripeUnitsPerDisk * layoutPtr->sectorsPerStripeUnit * layoutPtr->numParityLogCol;
+ raidPtr->regionLogCapacity = totalLogCapacity / rf_numParityRegions;
+ if (rf_parityLogDebug)
+ printf("bytes per sector %d\n", raidPtr->bytesPerSector);
+
+ /* reduce fragmentation within a disk region by adjusting the number
+ * of regions in an attempt to allow an integral number of logs to fit
+ * into a disk region */
+ fragmentation = raidPtr->regionLogCapacity % raidPtr->numSectorsPerLog;
+ if (fragmentation > 0)
+ for (i = 1; i < (raidPtr->numSectorsPerLog / 2); i++) {
+ if (((totalLogCapacity / (rf_numParityRegions + i)) % raidPtr->numSectorsPerLog) < fragmentation) {
+ rf_numParityRegions++;
+ raidPtr->regionLogCapacity = totalLogCapacity / rf_numParityRegions;
+ fragmentation = raidPtr->regionLogCapacity % raidPtr->numSectorsPerLog;
+ }
+ if (((totalLogCapacity / (rf_numParityRegions - i)) % raidPtr->numSectorsPerLog) < fragmentation) {
+ rf_numParityRegions--;
+ raidPtr->regionLogCapacity = totalLogCapacity / rf_numParityRegions;
+ fragmentation = raidPtr->regionLogCapacity % raidPtr->numSectorsPerLog;
+ }
+ }
+ /* ensure integral number of regions per log */
+ raidPtr->regionLogCapacity = (raidPtr->regionLogCapacity / raidPtr->numSectorsPerLog) * raidPtr->numSectorsPerLog;
+
+ raidPtr->numParityLogs = rf_totalInCoreLogCapacity / (raidPtr->bytesPerSector * raidPtr->numSectorsPerLog);
+ /* to avoid deadlock, must ensure that enough logs exist for each
+ * region to have one simultaneously */
+ if (raidPtr->numParityLogs < rf_numParityRegions)
+ raidPtr->numParityLogs = rf_numParityRegions;
+
+ /* create region information structs */
+ RF_Malloc(raidPtr->regionInfo, (rf_numParityRegions * sizeof(RF_RegionInfo_t)), (RF_RegionInfo_t *));
+ if (raidPtr->regionInfo == NULL)
+ return (ENOMEM);
+
+ /* last region may not be full capacity */
+ lastRegionCapacity = raidPtr->regionLogCapacity;
+ while ((rf_numParityRegions - 1) * raidPtr->regionLogCapacity + lastRegionCapacity > totalLogCapacity)
+ lastRegionCapacity = lastRegionCapacity - raidPtr->numSectorsPerLog;
+
+ raidPtr->regionParityRange = raidPtr->sectorsPerDisk / rf_numParityRegions;
+ maxRegionParityRange = raidPtr->regionParityRange;
/* i can't remember why this line is in the code -wvcii 6/30/95 */
/* if (raidPtr->sectorsPerDisk % rf_numParityRegions > 0)
regionParityRange++; */
- /* build pool of unused parity logs */
- RF_Malloc(raidPtr->parityLogBufferHeap, raidPtr->numParityLogs * raidPtr->numSectorsPerLog * raidPtr->bytesPerSector, (caddr_t));
- if (raidPtr->parityLogBufferHeap == NULL)
- return(ENOMEM);
- lHeapPtr = raidPtr->parityLogBufferHeap;
- rc = rf_mutex_init(&raidPtr->parityLogPool.mutex);
- if (rc) {
- RF_ERRORMSG3("Unable to init mutex file %s line %d rc=%d\n", __FILE__,
- __LINE__, rc);
- RF_Free(raidPtr->parityLogBufferHeap, raidPtr->numParityLogs * raidPtr->numSectorsPerLog * raidPtr->bytesPerSector);
- return(ENOMEM);
- }
- for (i = 0; i < raidPtr->numParityLogs; i++)
- {
- if (i == 0)
- {
- RF_Calloc(raidPtr->parityLogPool.parityLogs, 1, sizeof(RF_ParityLog_t), (RF_ParityLog_t *));
- if (raidPtr->parityLogPool.parityLogs == NULL) {
- RF_Free(raidPtr->parityLogBufferHeap, raidPtr->numParityLogs * raidPtr->numSectorsPerLog * raidPtr->bytesPerSector);
- return(ENOMEM);
- }
- l = raidPtr->parityLogPool.parityLogs;
+ /* build pool of unused parity logs */
+ RF_Malloc(raidPtr->parityLogBufferHeap, raidPtr->numParityLogs * raidPtr->numSectorsPerLog * raidPtr->bytesPerSector, (caddr_t));
+ if (raidPtr->parityLogBufferHeap == NULL)
+ return (ENOMEM);
+ lHeapPtr = raidPtr->parityLogBufferHeap;
+ rc = rf_mutex_init(&raidPtr->parityLogPool.mutex);
+ if (rc) {
+ RF_ERRORMSG3("Unable to init mutex file %s line %d rc=%d\n", __FILE__,
+ __LINE__, rc);
+ RF_Free(raidPtr->parityLogBufferHeap, raidPtr->numParityLogs * raidPtr->numSectorsPerLog * raidPtr->bytesPerSector);
+ return (ENOMEM);
+ }
+ for (i = 0; i < raidPtr->numParityLogs; i++) {
+ if (i == 0) {
+ RF_Calloc(raidPtr->parityLogPool.parityLogs, 1, sizeof(RF_ParityLog_t), (RF_ParityLog_t *));
+ if (raidPtr->parityLogPool.parityLogs == NULL) {
+ RF_Free(raidPtr->parityLogBufferHeap, raidPtr->numParityLogs * raidPtr->numSectorsPerLog * raidPtr->bytesPerSector);
+ return (ENOMEM);
+ }
+ l = raidPtr->parityLogPool.parityLogs;
+ } else {
+ RF_Calloc(l->next, 1, sizeof(RF_ParityLog_t), (RF_ParityLog_t *));
+ if (l->next == NULL) {
+ RF_Free(raidPtr->parityLogBufferHeap, raidPtr->numParityLogs * raidPtr->numSectorsPerLog * raidPtr->bytesPerSector);
+ for (l = raidPtr->parityLogPool.parityLogs; l; l = next) {
+ next = l->next;
+ if (l->records)
+ RF_Free(l->records, (raidPtr->numSectorsPerLog * sizeof(RF_ParityLogRecord_t)));
+ RF_Free(l, sizeof(RF_ParityLog_t));
+ }
+ return (ENOMEM);
+ }
+ l = l->next;
+ }
+ l->bufPtr = lHeapPtr;
+ lHeapPtr += raidPtr->numSectorsPerLog * raidPtr->bytesPerSector;
+ RF_Malloc(l->records, (raidPtr->numSectorsPerLog * sizeof(RF_ParityLogRecord_t)), (RF_ParityLogRecord_t *));
+ if (l->records == NULL) {
+ RF_Free(raidPtr->parityLogBufferHeap, raidPtr->numParityLogs * raidPtr->numSectorsPerLog * raidPtr->bytesPerSector);
+ for (l = raidPtr->parityLogPool.parityLogs; l; l = next) {
+ next = l->next;
+ if (l->records)
+ RF_Free(l->records, (raidPtr->numSectorsPerLog * sizeof(RF_ParityLogRecord_t)));
+ RF_Free(l, sizeof(RF_ParityLog_t));
+ }
+ return (ENOMEM);
+ }
}
- else
- {
- RF_Calloc(l->next, 1, sizeof(RF_ParityLog_t), (RF_ParityLog_t *));
- if (l->next == NULL) {
- RF_Free(raidPtr->parityLogBufferHeap, raidPtr->numParityLogs * raidPtr->numSectorsPerLog * raidPtr->bytesPerSector);
- for(l=raidPtr->parityLogPool.parityLogs;l;l=next) {
- next = l->next;
- if (l->records)
- RF_Free(l->records, (raidPtr->numSectorsPerLog * sizeof(RF_ParityLogRecord_t)));
- RF_Free(l, sizeof(RF_ParityLog_t));
- }
- return(ENOMEM);
- }
- l = l->next;
+ rc = rf_ShutdownCreate(listp, rf_ShutdownParityLoggingPool, raidPtr);
+ if (rc) {
+ RF_ERRORMSG3("Unable to create shutdown entry file %s line %d rc=%d\n", __FILE__,
+ __LINE__, rc);
+ rf_ShutdownParityLoggingPool(raidPtr);
+ return (rc);
}
- l->bufPtr = lHeapPtr;
- lHeapPtr += raidPtr->numSectorsPerLog * raidPtr->bytesPerSector;
- RF_Malloc(l->records, (raidPtr->numSectorsPerLog * sizeof(RF_ParityLogRecord_t)), (RF_ParityLogRecord_t *));
- if (l->records == NULL) {
- RF_Free(raidPtr->parityLogBufferHeap, raidPtr->numParityLogs * raidPtr->numSectorsPerLog * raidPtr->bytesPerSector);
- for(l=raidPtr->parityLogPool.parityLogs;l;l=next) {
- next = l->next;
- if (l->records)
- RF_Free(l->records, (raidPtr->numSectorsPerLog * sizeof(RF_ParityLogRecord_t)));
- RF_Free(l, sizeof(RF_ParityLog_t));
- }
- return(ENOMEM);
- }
- }
- rc = rf_ShutdownCreate(listp, rf_ShutdownParityLoggingPool, raidPtr);
- if (rc) {
- RF_ERRORMSG3("Unable to create shutdown entry file %s line %d rc=%d\n", __FILE__,
- __LINE__, rc);
- rf_ShutdownParityLoggingPool(raidPtr);
- return(rc);
- }
-
- /* build pool of region buffers */
- rc = rf_mutex_init(&raidPtr->regionBufferPool.mutex);
- if (rc) {
- RF_ERRORMSG3("Unable to init mutex file %s line %d rc=%d\n", __FILE__,
- __LINE__, rc);
- return(ENOMEM);
- }
- rc = rf_cond_init(&raidPtr->regionBufferPool.cond);
- if (rc) {
- RF_ERRORMSG3("Unable to init cond file %s line %d rc=%d\n", __FILE__,
- __LINE__, rc);
- rf_mutex_destroy(&raidPtr->regionBufferPool.mutex);
- return(ENOMEM);
- }
- raidPtr->regionBufferPool.bufferSize = raidPtr->regionLogCapacity * raidPtr->bytesPerSector;
- printf("regionBufferPool.bufferSize %d\n",raidPtr->regionBufferPool.bufferSize);
- raidPtr->regionBufferPool.totalBuffers = 1; /* for now, only one region at a time may be reintegrated */
- raidPtr->regionBufferPool.availableBuffers = raidPtr->regionBufferPool.totalBuffers;
- raidPtr->regionBufferPool.availBuffersIndex = 0;
- raidPtr->regionBufferPool.emptyBuffersIndex = 0;
- RF_Malloc(raidPtr->regionBufferPool.buffers, raidPtr->regionBufferPool.totalBuffers * sizeof(caddr_t), (caddr_t *));
- if (raidPtr->regionBufferPool.buffers == NULL) {
- rf_mutex_destroy(&raidPtr->regionBufferPool.mutex);
- rf_cond_destroy(&raidPtr->regionBufferPool.cond);
- return(ENOMEM);
- }
- for (i = 0; i < raidPtr->regionBufferPool.totalBuffers; i++) {
- RF_Malloc(raidPtr->regionBufferPool.buffers[i], raidPtr->regionBufferPool.bufferSize * sizeof(char), (caddr_t));
- if (raidPtr->regionBufferPool.buffers == NULL) {
- rf_mutex_destroy(&raidPtr->regionBufferPool.mutex);
- rf_cond_destroy(&raidPtr->regionBufferPool.cond);
- for(j=0;j<i;j++) {
- RF_Free(raidPtr->regionBufferPool.buffers[i], raidPtr->regionBufferPool.bufferSize * sizeof(char));
- }
- RF_Free(raidPtr->regionBufferPool.buffers, raidPtr->regionBufferPool.totalBuffers * sizeof(caddr_t));
- return(ENOMEM);
- }
- printf("raidPtr->regionBufferPool.buffers[%d] = %lx\n", i,
- (long)raidPtr->regionBufferPool.buffers[i]);
- }
- rc = rf_ShutdownCreate(listp, rf_ShutdownParityLoggingRegionBufferPool, raidPtr);
- if (rc) {
- RF_ERRORMSG3("Unable to create shutdown entry file %s line %d rc=%d\n", __FILE__,
- __LINE__, rc);
- rf_ShutdownParityLoggingRegionBufferPool(raidPtr);
- return(rc);
- }
-
- /* build pool of parity buffers */
- parityBufferCapacity = maxRegionParityRange;
- rc = rf_mutex_init(&raidPtr->parityBufferPool.mutex);
- if (rc) {
- RF_ERRORMSG3("Unable to init mutex file %s line %d rc=%d\n", __FILE__,
- __LINE__, rc);
- return(rc);
- }
- rc = rf_cond_init(&raidPtr->parityBufferPool.cond);
- if (rc) {
- RF_ERRORMSG3("Unable to init cond file %s line %d rc=%d\n", __FILE__,
- __LINE__, rc);
- rf_mutex_destroy(&raidPtr->parityBufferPool.mutex);
- return(ENOMEM);
- }
- raidPtr->parityBufferPool.bufferSize = parityBufferCapacity * raidPtr->bytesPerSector;
- printf("parityBufferPool.bufferSize %d\n",raidPtr->parityBufferPool.bufferSize);
- raidPtr->parityBufferPool.totalBuffers = 1; /* for now, only one region at a time may be reintegrated */
- raidPtr->parityBufferPool.availableBuffers = raidPtr->parityBufferPool.totalBuffers;
- raidPtr->parityBufferPool.availBuffersIndex = 0;
- raidPtr->parityBufferPool.emptyBuffersIndex = 0;
- RF_Malloc(raidPtr->parityBufferPool.buffers, raidPtr->parityBufferPool.totalBuffers * sizeof(caddr_t), (caddr_t *));
- if (raidPtr->parityBufferPool.buffers == NULL) {
- rf_mutex_destroy(&raidPtr->parityBufferPool.mutex);
- rf_cond_destroy(&raidPtr->parityBufferPool.cond);
- return(ENOMEM);
- }
- for (i = 0; i < raidPtr->parityBufferPool.totalBuffers; i++) {
- RF_Malloc(raidPtr->parityBufferPool.buffers[i], raidPtr->parityBufferPool.bufferSize * sizeof(char), (caddr_t));
- if (raidPtr->parityBufferPool.buffers == NULL) {
- rf_mutex_destroy(&raidPtr->parityBufferPool.mutex);
- rf_cond_destroy(&raidPtr->parityBufferPool.cond);
- for(j=0;j<i;j++) {
- RF_Free(raidPtr->parityBufferPool.buffers[i], raidPtr->regionBufferPool.bufferSize * sizeof(char));
- }
- RF_Free(raidPtr->parityBufferPool.buffers, raidPtr->regionBufferPool.totalBuffers * sizeof(caddr_t));
- return(ENOMEM);
- }
- printf("parityBufferPool.buffers[%d] = %lx\n", i,
- (long)raidPtr->parityBufferPool.buffers[i]);
- }
- rc = rf_ShutdownCreate(listp, rf_ShutdownParityLoggingParityBufferPool, raidPtr);
- if (rc) {
- RF_ERRORMSG3("Unable to create shutdown entry file %s line %d rc=%d\n", __FILE__,
- __LINE__, rc);
- rf_ShutdownParityLoggingParityBufferPool(raidPtr);
- return(rc);
- }
-
- /* initialize parityLogDiskQueue */
- rc = rf_create_managed_mutex(listp, &raidPtr->parityLogDiskQueue.mutex);
- if (rc) {
- RF_ERRORMSG3("Unable to init mutex file %s line %d rc=%d\n", __FILE__,
- __LINE__, rc);
- return(rc);
- }
- rc = rf_create_managed_cond(listp, &raidPtr->parityLogDiskQueue.cond);
- if (rc) {
- RF_ERRORMSG3("Unable to init cond file %s line %d rc=%d\n", __FILE__,
- __LINE__, rc);
- return(rc);
- }
- raidPtr->parityLogDiskQueue.flushQueue = NULL;
- raidPtr->parityLogDiskQueue.reintQueue = NULL;
- raidPtr->parityLogDiskQueue.bufHead = NULL;
- raidPtr->parityLogDiskQueue.bufTail = NULL;
- raidPtr->parityLogDiskQueue.reintHead = NULL;
- raidPtr->parityLogDiskQueue.reintTail = NULL;
- raidPtr->parityLogDiskQueue.logBlockHead = NULL;
- raidPtr->parityLogDiskQueue.logBlockTail = NULL;
- raidPtr->parityLogDiskQueue.reintBlockHead = NULL;
- raidPtr->parityLogDiskQueue.reintBlockTail = NULL;
- raidPtr->parityLogDiskQueue.freeDataList = NULL;
- raidPtr->parityLogDiskQueue.freeCommonList = NULL;
-
- rc = rf_ShutdownCreate(listp, rf_ShutdownParityLoggingDiskQueue, raidPtr);
- if (rc) {
- RF_ERRORMSG3("Unable to create shutdown entry file %s line %d rc=%d\n", __FILE__,
- __LINE__, rc);
- return(rc);
- }
-
- for (i = 0; i < rf_numParityRegions; i++)
- {
- rc = rf_mutex_init(&raidPtr->regionInfo[i].mutex);
- if (rc) {
- RF_ERRORMSG3("Unable to init mutex file %s line %d rc=%d\n", __FILE__,
- __LINE__, rc);
- for(j=0;j<i;j++)
- FreeRegionInfo(raidPtr, j);
- RF_Free(raidPtr->regionInfo, (rf_numParityRegions * sizeof(RF_RegionInfo_t)));
- return(ENOMEM);
- }
- rc = rf_mutex_init(&raidPtr->regionInfo[i].reintMutex);
- if (rc) {
- RF_ERRORMSG3("Unable to init mutex file %s line %d rc=%d\n", __FILE__,
- __LINE__, rc);
- rf_mutex_destroy(&raidPtr->regionInfo[i].mutex);
- for(j=0;j<i;j++)
- FreeRegionInfo(raidPtr, j);
- RF_Free(raidPtr->regionInfo, (rf_numParityRegions * sizeof(RF_RegionInfo_t)));
- return(ENOMEM);
- }
- raidPtr->regionInfo[i].reintInProgress = RF_FALSE;
- raidPtr->regionInfo[i].regionStartAddr = raidPtr->regionLogCapacity * i;
- raidPtr->regionInfo[i].parityStartAddr = raidPtr->regionParityRange * i;
- if (i < rf_numParityRegions - 1)
- {
- raidPtr->regionInfo[i].capacity = raidPtr->regionLogCapacity;
- raidPtr->regionInfo[i].numSectorsParity = raidPtr->regionParityRange;
+ /* build pool of region buffers */
+ rc = rf_mutex_init(&raidPtr->regionBufferPool.mutex);
+ if (rc) {
+ RF_ERRORMSG3("Unable to init mutex file %s line %d rc=%d\n", __FILE__,
+ __LINE__, rc);
+ return (ENOMEM);
}
- else
- {
- raidPtr->regionInfo[i].capacity = lastRegionCapacity;
- raidPtr->regionInfo[i].numSectorsParity = raidPtr->sectorsPerDisk - raidPtr->regionParityRange * i;
- if (raidPtr->regionInfo[i].numSectorsParity > maxRegionParityRange)
- maxRegionParityRange = raidPtr->regionInfo[i].numSectorsParity;
+ rc = rf_cond_init(&raidPtr->regionBufferPool.cond);
+ if (rc) {
+ RF_ERRORMSG3("Unable to init cond file %s line %d rc=%d\n", __FILE__,
+ __LINE__, rc);
+ rf_mutex_destroy(&raidPtr->regionBufferPool.mutex);
+ return (ENOMEM);
}
- raidPtr->regionInfo[i].diskCount = 0;
- RF_ASSERT(raidPtr->regionInfo[i].capacity + raidPtr->regionInfo[i].regionStartAddr <= totalLogCapacity);
- RF_ASSERT(raidPtr->regionInfo[i].parityStartAddr + raidPtr->regionInfo[i].numSectorsParity <= raidPtr->sectorsPerDisk);
- RF_Malloc(raidPtr->regionInfo[i].diskMap, (raidPtr->regionInfo[i].capacity * sizeof(RF_DiskMap_t)), (RF_DiskMap_t *));
- if (raidPtr->regionInfo[i].diskMap == NULL) {
- rf_mutex_destroy(&raidPtr->regionInfo[i].mutex);
- rf_mutex_destroy(&raidPtr->regionInfo[i].reintMutex);
- for(j=0;j<i;j++)
- FreeRegionInfo(raidPtr, j);
- RF_Free(raidPtr->regionInfo, (rf_numParityRegions * sizeof(RF_RegionInfo_t)));
- return(ENOMEM);
- }
- raidPtr->regionInfo[i].loggingEnabled = RF_FALSE;
- raidPtr->regionInfo[i].coreLog = NULL;
- }
- rc = rf_ShutdownCreate(listp, rf_ShutdownParityLoggingRegionInfo, raidPtr);
- if (rc) {
- RF_ERRORMSG3("Unable to create shutdown entry file %s line %d rc=%d\n", __FILE__,
- __LINE__, rc);
- rf_ShutdownParityLoggingRegionInfo(raidPtr);
- return(rc);
- }
-
- RF_ASSERT(raidPtr->parityLogDiskQueue.threadState == 0);
- raidPtr->parityLogDiskQueue.threadState = RF_PLOG_CREATED;
- rc = RF_CREATE_THREAD(raidPtr->pLogDiskThreadHandle, rf_ParityLoggingDiskManager, raidPtr);
- if (rc) {
- raidPtr->parityLogDiskQueue.threadState = 0;
- RF_ERRORMSG3("Unable to create parity logging disk thread file %s line %d rc=%d\n",
- __FILE__, __LINE__, rc);
- return(ENOMEM);
- }
- /* wait for thread to start */
- RF_LOCK_MUTEX(raidPtr->parityLogDiskQueue.mutex);
- while(!(raidPtr->parityLogDiskQueue.threadState&RF_PLOG_RUNNING)) {
- RF_WAIT_COND(raidPtr->parityLogDiskQueue.cond, raidPtr->parityLogDiskQueue.mutex);
- }
- RF_UNLOCK_MUTEX(raidPtr->parityLogDiskQueue.mutex);
-
- rc = rf_ShutdownCreate(listp, rf_ShutdownParityLogging, raidPtr);
- if (rc) {
- RF_ERRORMSG1("Got rc=%d adding parity logging shutdown event\n", rc);
- rf_ShutdownParityLogging(raidPtr);
- return(rc);
- }
-
- if (rf_parityLogDebug)
- {
- printf(" size of disk log in sectors: %d\n",
- (int)totalLogCapacity);
- printf(" total number of parity regions is %d\n", (int)rf_numParityRegions);
- printf(" nominal sectors of log per parity region is %d\n", (int)raidPtr->regionLogCapacity);
- printf(" nominal region fragmentation is %d sectors\n",(int)fragmentation);
- printf(" total number of parity logs is %d\n", raidPtr->numParityLogs);
- printf(" parity log size is %d sectors\n", raidPtr->numSectorsPerLog);
- printf(" total in-core log space is %d bytes\n", (int) rf_totalInCoreLogCapacity);
- }
-
- rf_EnableParityLogging(raidPtr);
-
- return(0);
+ raidPtr->regionBufferPool.bufferSize = raidPtr->regionLogCapacity * raidPtr->bytesPerSector;
+ printf("regionBufferPool.bufferSize %d\n", raidPtr->regionBufferPool.bufferSize);
+ raidPtr->regionBufferPool.totalBuffers = 1; /* for now, only one
+ * region at a time may
+ * be reintegrated */
+ raidPtr->regionBufferPool.availableBuffers = raidPtr->regionBufferPool.totalBuffers;
+ raidPtr->regionBufferPool.availBuffersIndex = 0;
+ raidPtr->regionBufferPool.emptyBuffersIndex = 0;
+ RF_Malloc(raidPtr->regionBufferPool.buffers, raidPtr->regionBufferPool.totalBuffers * sizeof(caddr_t), (caddr_t *));
+ if (raidPtr->regionBufferPool.buffers == NULL) {
+ rf_mutex_destroy(&raidPtr->regionBufferPool.mutex);
+ rf_cond_destroy(&raidPtr->regionBufferPool.cond);
+ return (ENOMEM);
+ }
+ for (i = 0; i < raidPtr->regionBufferPool.totalBuffers; i++) {
+ RF_Malloc(raidPtr->regionBufferPool.buffers[i], raidPtr->regionBufferPool.bufferSize * sizeof(char), (caddr_t));
+ if (raidPtr->regionBufferPool.buffers == NULL) {
+ rf_mutex_destroy(&raidPtr->regionBufferPool.mutex);
+ rf_cond_destroy(&raidPtr->regionBufferPool.cond);
+ for (j = 0; j < i; j++) {
+ RF_Free(raidPtr->regionBufferPool.buffers[i], raidPtr->regionBufferPool.bufferSize * sizeof(char));
+ }
+ RF_Free(raidPtr->regionBufferPool.buffers, raidPtr->regionBufferPool.totalBuffers * sizeof(caddr_t));
+ return (ENOMEM);
+ }
+ printf("raidPtr->regionBufferPool.buffers[%d] = %lx\n", i,
+ (long) raidPtr->regionBufferPool.buffers[i]);
+ }
+ rc = rf_ShutdownCreate(listp, rf_ShutdownParityLoggingRegionBufferPool, raidPtr);
+ if (rc) {
+ RF_ERRORMSG3("Unable to create shutdown entry file %s line %d rc=%d\n", __FILE__,
+ __LINE__, rc);
+ rf_ShutdownParityLoggingRegionBufferPool(raidPtr);
+ return (rc);
+ }
+ /* build pool of parity buffers */
+ parityBufferCapacity = maxRegionParityRange;
+ rc = rf_mutex_init(&raidPtr->parityBufferPool.mutex);
+ if (rc) {
+ RF_ERRORMSG3("Unable to init mutex file %s line %d rc=%d\n", __FILE__,
+ __LINE__, rc);
+ return (rc);
+ }
+ rc = rf_cond_init(&raidPtr->parityBufferPool.cond);
+ if (rc) {
+ RF_ERRORMSG3("Unable to init cond file %s line %d rc=%d\n", __FILE__,
+ __LINE__, rc);
+ rf_mutex_destroy(&raidPtr->parityBufferPool.mutex);
+ return (ENOMEM);
+ }
+ raidPtr->parityBufferPool.bufferSize = parityBufferCapacity * raidPtr->bytesPerSector;
+ printf("parityBufferPool.bufferSize %d\n", raidPtr->parityBufferPool.bufferSize);
+ raidPtr->parityBufferPool.totalBuffers = 1; /* for now, only one
+ * region at a time may
+ * be reintegrated */
+ raidPtr->parityBufferPool.availableBuffers = raidPtr->parityBufferPool.totalBuffers;
+ raidPtr->parityBufferPool.availBuffersIndex = 0;
+ raidPtr->parityBufferPool.emptyBuffersIndex = 0;
+ RF_Malloc(raidPtr->parityBufferPool.buffers, raidPtr->parityBufferPool.totalBuffers * sizeof(caddr_t), (caddr_t *));
+ if (raidPtr->parityBufferPool.buffers == NULL) {
+ rf_mutex_destroy(&raidPtr->parityBufferPool.mutex);
+ rf_cond_destroy(&raidPtr->parityBufferPool.cond);
+ return (ENOMEM);
+ }
+ for (i = 0; i < raidPtr->parityBufferPool.totalBuffers; i++) {
+ RF_Malloc(raidPtr->parityBufferPool.buffers[i], raidPtr->parityBufferPool.bufferSize * sizeof(char), (caddr_t));
+ if (raidPtr->parityBufferPool.buffers == NULL) {
+ rf_mutex_destroy(&raidPtr->parityBufferPool.mutex);
+ rf_cond_destroy(&raidPtr->parityBufferPool.cond);
+ for (j = 0; j < i; j++) {
+ RF_Free(raidPtr->parityBufferPool.buffers[i], raidPtr->regionBufferPool.bufferSize * sizeof(char));
+ }
+ RF_Free(raidPtr->parityBufferPool.buffers, raidPtr->regionBufferPool.totalBuffers * sizeof(caddr_t));
+ return (ENOMEM);
+ }
+ printf("parityBufferPool.buffers[%d] = %lx\n", i,
+ (long) raidPtr->parityBufferPool.buffers[i]);
+ }
+ rc = rf_ShutdownCreate(listp, rf_ShutdownParityLoggingParityBufferPool, raidPtr);
+ if (rc) {
+ RF_ERRORMSG3("Unable to create shutdown entry file %s line %d rc=%d\n", __FILE__,
+ __LINE__, rc);
+ rf_ShutdownParityLoggingParityBufferPool(raidPtr);
+ return (rc);
+ }
+ /* initialize parityLogDiskQueue */
+ rc = rf_create_managed_mutex(listp, &raidPtr->parityLogDiskQueue.mutex);
+ if (rc) {
+ RF_ERRORMSG3("Unable to init mutex file %s line %d rc=%d\n", __FILE__,
+ __LINE__, rc);
+ return (rc);
+ }
+ rc = rf_create_managed_cond(listp, &raidPtr->parityLogDiskQueue.cond);
+ if (rc) {
+ RF_ERRORMSG3("Unable to init cond file %s line %d rc=%d\n", __FILE__,
+ __LINE__, rc);
+ return (rc);
+ }
+ raidPtr->parityLogDiskQueue.flushQueue = NULL;
+ raidPtr->parityLogDiskQueue.reintQueue = NULL;
+ raidPtr->parityLogDiskQueue.bufHead = NULL;
+ raidPtr->parityLogDiskQueue.bufTail = NULL;
+ raidPtr->parityLogDiskQueue.reintHead = NULL;
+ raidPtr->parityLogDiskQueue.reintTail = NULL;
+ raidPtr->parityLogDiskQueue.logBlockHead = NULL;
+ raidPtr->parityLogDiskQueue.logBlockTail = NULL;
+ raidPtr->parityLogDiskQueue.reintBlockHead = NULL;
+ raidPtr->parityLogDiskQueue.reintBlockTail = NULL;
+ raidPtr->parityLogDiskQueue.freeDataList = NULL;
+ raidPtr->parityLogDiskQueue.freeCommonList = NULL;
+
+ rc = rf_ShutdownCreate(listp, rf_ShutdownParityLoggingDiskQueue, raidPtr);
+ if (rc) {
+ RF_ERRORMSG3("Unable to create shutdown entry file %s line %d rc=%d\n", __FILE__,
+ __LINE__, rc);
+ return (rc);
+ }
+ for (i = 0; i < rf_numParityRegions; i++) {
+ rc = rf_mutex_init(&raidPtr->regionInfo[i].mutex);
+ if (rc) {
+ RF_ERRORMSG3("Unable to init mutex file %s line %d rc=%d\n", __FILE__,
+ __LINE__, rc);
+ for (j = 0; j < i; j++)
+ FreeRegionInfo(raidPtr, j);
+ RF_Free(raidPtr->regionInfo, (rf_numParityRegions * sizeof(RF_RegionInfo_t)));
+ return (ENOMEM);
+ }
+ rc = rf_mutex_init(&raidPtr->regionInfo[i].reintMutex);
+ if (rc) {
+ RF_ERRORMSG3("Unable to init mutex file %s line %d rc=%d\n", __FILE__,
+ __LINE__, rc);
+ rf_mutex_destroy(&raidPtr->regionInfo[i].mutex);
+ for (j = 0; j < i; j++)
+ FreeRegionInfo(raidPtr, j);
+ RF_Free(raidPtr->regionInfo, (rf_numParityRegions * sizeof(RF_RegionInfo_t)));
+ return (ENOMEM);
+ }
+ raidPtr->regionInfo[i].reintInProgress = RF_FALSE;
+ raidPtr->regionInfo[i].regionStartAddr = raidPtr->regionLogCapacity * i;
+ raidPtr->regionInfo[i].parityStartAddr = raidPtr->regionParityRange * i;
+ if (i < rf_numParityRegions - 1) {
+ raidPtr->regionInfo[i].capacity = raidPtr->regionLogCapacity;
+ raidPtr->regionInfo[i].numSectorsParity = raidPtr->regionParityRange;
+ } else {
+ raidPtr->regionInfo[i].capacity = lastRegionCapacity;
+ raidPtr->regionInfo[i].numSectorsParity = raidPtr->sectorsPerDisk - raidPtr->regionParityRange * i;
+ if (raidPtr->regionInfo[i].numSectorsParity > maxRegionParityRange)
+ maxRegionParityRange = raidPtr->regionInfo[i].numSectorsParity;
+ }
+ raidPtr->regionInfo[i].diskCount = 0;
+ RF_ASSERT(raidPtr->regionInfo[i].capacity + raidPtr->regionInfo[i].regionStartAddr <= totalLogCapacity);
+ RF_ASSERT(raidPtr->regionInfo[i].parityStartAddr + raidPtr->regionInfo[i].numSectorsParity <= raidPtr->sectorsPerDisk);
+ RF_Malloc(raidPtr->regionInfo[i].diskMap, (raidPtr->regionInfo[i].capacity * sizeof(RF_DiskMap_t)), (RF_DiskMap_t *));
+ if (raidPtr->regionInfo[i].diskMap == NULL) {
+ rf_mutex_destroy(&raidPtr->regionInfo[i].mutex);
+ rf_mutex_destroy(&raidPtr->regionInfo[i].reintMutex);
+ for (j = 0; j < i; j++)
+ FreeRegionInfo(raidPtr, j);
+ RF_Free(raidPtr->regionInfo, (rf_numParityRegions * sizeof(RF_RegionInfo_t)));
+ return (ENOMEM);
+ }
+ raidPtr->regionInfo[i].loggingEnabled = RF_FALSE;
+ raidPtr->regionInfo[i].coreLog = NULL;
+ }
+ rc = rf_ShutdownCreate(listp, rf_ShutdownParityLoggingRegionInfo, raidPtr);
+ if (rc) {
+ RF_ERRORMSG3("Unable to create shutdown entry file %s line %d rc=%d\n", __FILE__,
+ __LINE__, rc);
+ rf_ShutdownParityLoggingRegionInfo(raidPtr);
+ return (rc);
+ }
+ RF_ASSERT(raidPtr->parityLogDiskQueue.threadState == 0);
+ raidPtr->parityLogDiskQueue.threadState = RF_PLOG_CREATED;
+ rc = RF_CREATE_THREAD(raidPtr->pLogDiskThreadHandle, rf_ParityLoggingDiskManager, raidPtr);
+ if (rc) {
+ raidPtr->parityLogDiskQueue.threadState = 0;
+ RF_ERRORMSG3("Unable to create parity logging disk thread file %s line %d rc=%d\n",
+ __FILE__, __LINE__, rc);
+ return (ENOMEM);
+ }
+ /* wait for thread to start */
+ RF_LOCK_MUTEX(raidPtr->parityLogDiskQueue.mutex);
+ while (!(raidPtr->parityLogDiskQueue.threadState & RF_PLOG_RUNNING)) {
+ RF_WAIT_COND(raidPtr->parityLogDiskQueue.cond, raidPtr->parityLogDiskQueue.mutex);
+ }
+ RF_UNLOCK_MUTEX(raidPtr->parityLogDiskQueue.mutex);
+
+ rc = rf_ShutdownCreate(listp, rf_ShutdownParityLogging, raidPtr);
+ if (rc) {
+ RF_ERRORMSG1("Got rc=%d adding parity logging shutdown event\n", rc);
+ rf_ShutdownParityLogging(raidPtr);
+ return (rc);
+ }
+ if (rf_parityLogDebug) {
+ printf(" size of disk log in sectors: %d\n",
+ (int) totalLogCapacity);
+ printf(" total number of parity regions is %d\n", (int) rf_numParityRegions);
+ printf(" nominal sectors of log per parity region is %d\n", (int) raidPtr->regionLogCapacity);
+ printf(" nominal region fragmentation is %d sectors\n", (int) fragmentation);
+ printf(" total number of parity logs is %d\n", raidPtr->numParityLogs);
+ printf(" parity log size is %d sectors\n", raidPtr->numSectorsPerLog);
+ printf(" total in-core log space is %d bytes\n", (int) rf_totalInCoreLogCapacity);
+ }
+ rf_EnableParityLogging(raidPtr);
+
+ return (0);
}
-static void FreeRegionInfo(
- RF_Raid_t *raidPtr,
- RF_RegionId_t regionID)
+static void
+FreeRegionInfo(
+ RF_Raid_t * raidPtr,
+ RF_RegionId_t regionID)
{
- RF_LOCK_MUTEX(raidPtr->regionInfo[regionID].mutex);
- RF_Free(raidPtr->regionInfo[regionID].diskMap, (raidPtr->regionInfo[regionID].capacity * sizeof(RF_DiskMap_t)));
- if (!rf_forceParityLogReint && raidPtr->regionInfo[regionID].coreLog) {
- rf_ReleaseParityLogs(raidPtr, raidPtr->regionInfo[regionID].coreLog);
- raidPtr->regionInfo[regionID].coreLog = NULL;
- }
- else {
- RF_ASSERT(raidPtr->regionInfo[regionID].coreLog == NULL);
- RF_ASSERT(raidPtr->regionInfo[regionID].diskCount == 0);
- }
- RF_UNLOCK_MUTEX(raidPtr->regionInfo[regionID].mutex);
- rf_mutex_destroy(&raidPtr->regionInfo[regionID].mutex);
- rf_mutex_destroy(&raidPtr->regionInfo[regionID].reintMutex);
+ RF_LOCK_MUTEX(raidPtr->regionInfo[regionID].mutex);
+ RF_Free(raidPtr->regionInfo[regionID].diskMap, (raidPtr->regionInfo[regionID].capacity * sizeof(RF_DiskMap_t)));
+ if (!rf_forceParityLogReint && raidPtr->regionInfo[regionID].coreLog) {
+ rf_ReleaseParityLogs(raidPtr, raidPtr->regionInfo[regionID].coreLog);
+ raidPtr->regionInfo[regionID].coreLog = NULL;
+ } else {
+ RF_ASSERT(raidPtr->regionInfo[regionID].coreLog == NULL);
+ RF_ASSERT(raidPtr->regionInfo[regionID].diskCount == 0);
+ }
+ RF_UNLOCK_MUTEX(raidPtr->regionInfo[regionID].mutex);
+ rf_mutex_destroy(&raidPtr->regionInfo[regionID].mutex);
+ rf_mutex_destroy(&raidPtr->regionInfo[regionID].reintMutex);
}
-static void FreeParityLogQueue(
- RF_Raid_t *raidPtr,
- RF_ParityLogQueue_t *queue)
+static void
+FreeParityLogQueue(
+ RF_Raid_t * raidPtr,
+ RF_ParityLogQueue_t * queue)
{
- RF_ParityLog_t *l1, *l2;
-
- RF_LOCK_MUTEX(queue->mutex);
- l1 = queue->parityLogs;
- while (l1)
- {
- l2 = l1;
- l1 = l2->next;
- RF_Free(l2->records, (raidPtr->numSectorsPerLog * sizeof(RF_ParityLogRecord_t)));
- RF_Free(l2, sizeof(RF_ParityLog_t));
- }
- RF_UNLOCK_MUTEX(queue->mutex);
- rf_mutex_destroy(&queue->mutex);
+ RF_ParityLog_t *l1, *l2;
+
+ RF_LOCK_MUTEX(queue->mutex);
+ l1 = queue->parityLogs;
+ while (l1) {
+ l2 = l1;
+ l1 = l2->next;
+ RF_Free(l2->records, (raidPtr->numSectorsPerLog * sizeof(RF_ParityLogRecord_t)));
+ RF_Free(l2, sizeof(RF_ParityLog_t));
+ }
+ RF_UNLOCK_MUTEX(queue->mutex);
+ rf_mutex_destroy(&queue->mutex);
}
-static void FreeRegionBufferQueue(RF_RegionBufferQueue_t *queue)
+static void
+FreeRegionBufferQueue(RF_RegionBufferQueue_t * queue)
{
- int i;
-
- RF_LOCK_MUTEX(queue->mutex);
- if (queue->availableBuffers != queue->totalBuffers)
- {
- printf("Attempt to free region queue which is still in use!\n");
- RF_ASSERT(0);
- }
- for (i = 0; i < queue->totalBuffers; i++)
- RF_Free(queue->buffers[i], queue->bufferSize);
- RF_Free(queue->buffers, queue->totalBuffers * sizeof(caddr_t));
- RF_UNLOCK_MUTEX(queue->mutex);
- rf_mutex_destroy(&queue->mutex);
+ int i;
+
+ RF_LOCK_MUTEX(queue->mutex);
+ if (queue->availableBuffers != queue->totalBuffers) {
+ printf("Attempt to free region queue which is still in use!\n");
+ RF_ASSERT(0);
+ }
+ for (i = 0; i < queue->totalBuffers; i++)
+ RF_Free(queue->buffers[i], queue->bufferSize);
+ RF_Free(queue->buffers, queue->totalBuffers * sizeof(caddr_t));
+ RF_UNLOCK_MUTEX(queue->mutex);
+ rf_mutex_destroy(&queue->mutex);
}
-static void rf_ShutdownParityLoggingRegionInfo(RF_ThreadArg_t arg)
+static void
+rf_ShutdownParityLoggingRegionInfo(RF_ThreadArg_t arg)
{
- RF_Raid_t *raidPtr;
- RF_RegionId_t i;
-
- raidPtr = (RF_Raid_t *)arg;
- if (rf_parityLogDebug) {
- int tid;
- rf_get_threadid(tid);
- printf("[%d] ShutdownParityLoggingRegionInfo\n", tid);
- }
- /* free region information structs */
- for (i = 0; i < rf_numParityRegions; i++)
- FreeRegionInfo(raidPtr, i);
- RF_Free(raidPtr->regionInfo, (rf_numParityRegions * sizeof(raidPtr->regionInfo)));
- raidPtr->regionInfo = NULL;
+ RF_Raid_t *raidPtr;
+ RF_RegionId_t i;
+
+ raidPtr = (RF_Raid_t *) arg;
+ if (rf_parityLogDebug) {
+ int tid;
+ rf_get_threadid(tid);
+ printf("[%d] ShutdownParityLoggingRegionInfo\n", tid);
+ }
+ /* free region information structs */
+ for (i = 0; i < rf_numParityRegions; i++)
+ FreeRegionInfo(raidPtr, i);
+ RF_Free(raidPtr->regionInfo, (rf_numParityRegions * sizeof(raidPtr->regionInfo)));
+ raidPtr->regionInfo = NULL;
}
-static void rf_ShutdownParityLoggingPool(RF_ThreadArg_t arg)
+static void
+rf_ShutdownParityLoggingPool(RF_ThreadArg_t arg)
{
- RF_Raid_t *raidPtr;
-
- raidPtr = (RF_Raid_t *)arg;
- if (rf_parityLogDebug) {
- int tid;
- rf_get_threadid(tid);
- printf("[%d] ShutdownParityLoggingPool\n", tid);
- }
- /* free contents of parityLogPool */
- FreeParityLogQueue(raidPtr, &raidPtr->parityLogPool);
- RF_Free(raidPtr->parityLogBufferHeap, raidPtr->numParityLogs * raidPtr->numSectorsPerLog * raidPtr->bytesPerSector);
+ RF_Raid_t *raidPtr;
+
+ raidPtr = (RF_Raid_t *) arg;
+ if (rf_parityLogDebug) {
+ int tid;
+ rf_get_threadid(tid);
+ printf("[%d] ShutdownParityLoggingPool\n", tid);
+ }
+ /* free contents of parityLogPool */
+ FreeParityLogQueue(raidPtr, &raidPtr->parityLogPool);
+ RF_Free(raidPtr->parityLogBufferHeap, raidPtr->numParityLogs * raidPtr->numSectorsPerLog * raidPtr->bytesPerSector);
}
-static void rf_ShutdownParityLoggingRegionBufferPool(RF_ThreadArg_t arg)
+static void
+rf_ShutdownParityLoggingRegionBufferPool(RF_ThreadArg_t arg)
{
- RF_Raid_t *raidPtr;
-
- raidPtr = (RF_Raid_t *)arg;
- if (rf_parityLogDebug) {
- int tid;
- rf_get_threadid(tid);
- printf("[%d] ShutdownParityLoggingRegionBufferPool\n", tid);
- }
- FreeRegionBufferQueue(&raidPtr->regionBufferPool);
+ RF_Raid_t *raidPtr;
+
+ raidPtr = (RF_Raid_t *) arg;
+ if (rf_parityLogDebug) {
+ int tid;
+ rf_get_threadid(tid);
+ printf("[%d] ShutdownParityLoggingRegionBufferPool\n", tid);
+ }
+ FreeRegionBufferQueue(&raidPtr->regionBufferPool);
}
-static void rf_ShutdownParityLoggingParityBufferPool(RF_ThreadArg_t arg)
+static void
+rf_ShutdownParityLoggingParityBufferPool(RF_ThreadArg_t arg)
{
- RF_Raid_t *raidPtr;
-
- raidPtr = (RF_Raid_t *)arg;
- if (rf_parityLogDebug) {
- int tid;
- rf_get_threadid(tid);
- printf("[%d] ShutdownParityLoggingParityBufferPool\n", tid);
- }
- FreeRegionBufferQueue(&raidPtr->parityBufferPool);
+ RF_Raid_t *raidPtr;
+
+ raidPtr = (RF_Raid_t *) arg;
+ if (rf_parityLogDebug) {
+ int tid;
+ rf_get_threadid(tid);
+ printf("[%d] ShutdownParityLoggingParityBufferPool\n", tid);
+ }
+ FreeRegionBufferQueue(&raidPtr->parityBufferPool);
}
-static void rf_ShutdownParityLoggingDiskQueue(RF_ThreadArg_t arg)
+static void
+rf_ShutdownParityLoggingDiskQueue(RF_ThreadArg_t arg)
{
- RF_ParityLogData_t *d;
- RF_CommonLogData_t *c;
- RF_Raid_t *raidPtr;
-
- raidPtr = (RF_Raid_t *)arg;
- if (rf_parityLogDebug) {
- int tid;
- rf_get_threadid(tid);
- printf("[%d] ShutdownParityLoggingDiskQueue\n", tid);
- }
- /* free disk manager stuff */
- RF_ASSERT(raidPtr->parityLogDiskQueue.bufHead == NULL);
- RF_ASSERT(raidPtr->parityLogDiskQueue.bufTail == NULL);
- RF_ASSERT(raidPtr->parityLogDiskQueue.reintHead == NULL);
- RF_ASSERT(raidPtr->parityLogDiskQueue.reintTail == NULL);
- while (raidPtr->parityLogDiskQueue.freeDataList)
- {
- d = raidPtr->parityLogDiskQueue.freeDataList;
- raidPtr->parityLogDiskQueue.freeDataList = raidPtr->parityLogDiskQueue.freeDataList->next;
- RF_Free(d, sizeof(RF_ParityLogData_t));
- }
- while (raidPtr->parityLogDiskQueue.freeCommonList)
- {
- c = raidPtr->parityLogDiskQueue.freeCommonList;
- rf_mutex_destroy(&c->mutex);
- raidPtr->parityLogDiskQueue.freeCommonList = raidPtr->parityLogDiskQueue.freeCommonList->next;
- RF_Free(c, sizeof(RF_CommonLogData_t));
- }
+ RF_ParityLogData_t *d;
+ RF_CommonLogData_t *c;
+ RF_Raid_t *raidPtr;
+
+ raidPtr = (RF_Raid_t *) arg;
+ if (rf_parityLogDebug) {
+ int tid;
+ rf_get_threadid(tid);
+ printf("[%d] ShutdownParityLoggingDiskQueue\n", tid);
+ }
+ /* free disk manager stuff */
+ RF_ASSERT(raidPtr->parityLogDiskQueue.bufHead == NULL);
+ RF_ASSERT(raidPtr->parityLogDiskQueue.bufTail == NULL);
+ RF_ASSERT(raidPtr->parityLogDiskQueue.reintHead == NULL);
+ RF_ASSERT(raidPtr->parityLogDiskQueue.reintTail == NULL);
+ while (raidPtr->parityLogDiskQueue.freeDataList) {
+ d = raidPtr->parityLogDiskQueue.freeDataList;
+ raidPtr->parityLogDiskQueue.freeDataList = raidPtr->parityLogDiskQueue.freeDataList->next;
+ RF_Free(d, sizeof(RF_ParityLogData_t));
+ }
+ while (raidPtr->parityLogDiskQueue.freeCommonList) {
+ c = raidPtr->parityLogDiskQueue.freeCommonList;
+ rf_mutex_destroy(&c->mutex);
+ raidPtr->parityLogDiskQueue.freeCommonList = raidPtr->parityLogDiskQueue.freeCommonList->next;
+ RF_Free(c, sizeof(RF_CommonLogData_t));
+ }
}
-static void rf_ShutdownParityLogging(RF_ThreadArg_t arg)
+static void
+rf_ShutdownParityLogging(RF_ThreadArg_t arg)
{
- RF_Raid_t *raidPtr;
-
- raidPtr = (RF_Raid_t *)arg;
- if (rf_parityLogDebug) {
- int tid;
- rf_get_threadid(tid);
- printf("[%d] ShutdownParityLogging\n", tid);
- }
-#ifndef SIMULATE
- /* shutdown disk thread */
- /* This has the desirable side-effect of forcing all regions to be
- reintegrated. This is necessary since all parity log maps are
- currently held in volatile memory. */
-
- RF_LOCK_MUTEX(raidPtr->parityLogDiskQueue.mutex);
- raidPtr->parityLogDiskQueue.threadState |= RF_PLOG_TERMINATE;
- RF_UNLOCK_MUTEX(raidPtr->parityLogDiskQueue.mutex);
- RF_SIGNAL_COND(raidPtr->parityLogDiskQueue.cond);
- /*
- * pLogDiskThread will now terminate when queues are cleared
- * now wait for it to be done
- */
- RF_LOCK_MUTEX(raidPtr->parityLogDiskQueue.mutex);
- while(!(raidPtr->parityLogDiskQueue.threadState&RF_PLOG_SHUTDOWN)) {
- RF_WAIT_COND(raidPtr->parityLogDiskQueue.cond, raidPtr->parityLogDiskQueue.mutex);
- }
- RF_UNLOCK_MUTEX(raidPtr->parityLogDiskQueue.mutex);
-#else /* !SIMULATE */
- /* explicitly call shutdown routines which force reintegration */
- rf_ShutdownLogging(raidPtr);
-#endif /* !SIMULATE */
- if (rf_parityLogDebug) {
- int tid;
- rf_get_threadid(tid);
- printf("[%d] ShutdownParityLogging done (thread completed)\n", tid);
- }
+ RF_Raid_t *raidPtr;
+
+ raidPtr = (RF_Raid_t *) arg;
+ if (rf_parityLogDebug) {
+ int tid;
+ rf_get_threadid(tid);
+ printf("[%d] ShutdownParityLogging\n", tid);
+ }
+ /* shutdown disk thread */
+ /* This has the desirable side-effect of forcing all regions to be
+ * reintegrated. This is necessary since all parity log maps are
+ * currently held in volatile memory. */
+
+ RF_LOCK_MUTEX(raidPtr->parityLogDiskQueue.mutex);
+ raidPtr->parityLogDiskQueue.threadState |= RF_PLOG_TERMINATE;
+ RF_UNLOCK_MUTEX(raidPtr->parityLogDiskQueue.mutex);
+ RF_SIGNAL_COND(raidPtr->parityLogDiskQueue.cond);
+ /*
+ * pLogDiskThread will now terminate when queues are cleared
+ * now wait for it to be done
+ */
+ RF_LOCK_MUTEX(raidPtr->parityLogDiskQueue.mutex);
+ while (!(raidPtr->parityLogDiskQueue.threadState & RF_PLOG_SHUTDOWN)) {
+ RF_WAIT_COND(raidPtr->parityLogDiskQueue.cond, raidPtr->parityLogDiskQueue.mutex);
+ }
+ RF_UNLOCK_MUTEX(raidPtr->parityLogDiskQueue.mutex);
+ if (rf_parityLogDebug) {
+ int tid;
+ rf_get_threadid(tid);
+ printf("[%d] ShutdownParityLogging done (thread completed)\n", tid);
+ }
}
-int rf_GetDefaultNumFloatingReconBuffersParityLogging(RF_Raid_t *raidPtr)
+int
+rf_GetDefaultNumFloatingReconBuffersParityLogging(RF_Raid_t * raidPtr)
{
- return(20);
+ return (20);
}
-RF_HeadSepLimit_t rf_GetDefaultHeadSepLimitParityLogging(RF_Raid_t *raidPtr)
+RF_HeadSepLimit_t
+rf_GetDefaultHeadSepLimitParityLogging(RF_Raid_t * raidPtr)
{
- return(10);
+ return (10);
}
-
/* return the region ID for a given RAID address */
-RF_RegionId_t rf_MapRegionIDParityLogging(
- RF_Raid_t *raidPtr,
- RF_SectorNum_t address)
+RF_RegionId_t
+rf_MapRegionIDParityLogging(
+ RF_Raid_t * raidPtr,
+ RF_SectorNum_t address)
{
- RF_RegionId_t regionID;
+ RF_RegionId_t regionID;
/* regionID = address / (raidPtr->regionParityRange * raidPtr->Layout.numDataCol); */
- regionID = address / raidPtr->regionParityRange;
- if (regionID == rf_numParityRegions)
- {
- /* last region may be larger than other regions */
- regionID--;
- }
- RF_ASSERT(address >= raidPtr->regionInfo[regionID].parityStartAddr);
- RF_ASSERT(address < raidPtr->regionInfo[regionID].parityStartAddr + raidPtr->regionInfo[regionID].numSectorsParity);
- RF_ASSERT(regionID < rf_numParityRegions);
- return(regionID);
+ regionID = address / raidPtr->regionParityRange;
+ if (regionID == rf_numParityRegions) {
+ /* last region may be larger than other regions */
+ regionID--;
+ }
+ RF_ASSERT(address >= raidPtr->regionInfo[regionID].parityStartAddr);
+ RF_ASSERT(address < raidPtr->regionInfo[regionID].parityStartAddr + raidPtr->regionInfo[regionID].numSectorsParity);
+ RF_ASSERT(regionID < rf_numParityRegions);
+ return (regionID);
}
/* given a logical RAID sector, determine physical disk address of data */
-void rf_MapSectorParityLogging(
- RF_Raid_t *raidPtr,
- RF_RaidAddr_t raidSector,
- RF_RowCol_t *row,
- RF_RowCol_t *col,
- RF_SectorNum_t *diskSector,
- int remap)
+void
+rf_MapSectorParityLogging(
+ RF_Raid_t * raidPtr,
+ RF_RaidAddr_t raidSector,
+ RF_RowCol_t * row,
+ RF_RowCol_t * col,
+ RF_SectorNum_t * diskSector,
+ int remap)
{
- RF_StripeNum_t SUID = raidSector / raidPtr->Layout.sectorsPerStripeUnit;
- *row = 0;
- /* *col = (SUID % (raidPtr->numCol - raidPtr->Layout.numParityLogCol)); */
- *col = SUID % raidPtr->Layout.numDataCol;
- *diskSector = (SUID / (raidPtr->Layout.numDataCol)) * raidPtr->Layout.sectorsPerStripeUnit +
- (raidSector % raidPtr->Layout.sectorsPerStripeUnit);
+ RF_StripeNum_t SUID = raidSector / raidPtr->Layout.sectorsPerStripeUnit;
+ *row = 0;
+ /* *col = (SUID % (raidPtr->numCol -
+ * raidPtr->Layout.numParityLogCol)); */
+ *col = SUID % raidPtr->Layout.numDataCol;
+ *diskSector = (SUID / (raidPtr->Layout.numDataCol)) * raidPtr->Layout.sectorsPerStripeUnit +
+ (raidSector % raidPtr->Layout.sectorsPerStripeUnit);
}
/* given a logical RAID sector, determine physical disk address of parity */
-void rf_MapParityParityLogging(
- RF_Raid_t *raidPtr,
- RF_RaidAddr_t raidSector,
- RF_RowCol_t *row,
- RF_RowCol_t *col,
- RF_SectorNum_t *diskSector,
- int remap)
+void
+rf_MapParityParityLogging(
+ RF_Raid_t * raidPtr,
+ RF_RaidAddr_t raidSector,
+ RF_RowCol_t * row,
+ RF_RowCol_t * col,
+ RF_SectorNum_t * diskSector,
+ int remap)
{
- RF_StripeNum_t SUID = raidSector / raidPtr->Layout.sectorsPerStripeUnit;
-
- *row = 0;
- /* *col = raidPtr->Layout.numDataCol-(SUID/raidPtr->Layout.numDataCol)%(raidPtr->numCol - raidPtr->Layout.numParityLogCol); */
- *col = raidPtr->Layout.numDataCol;
- *diskSector =(SUID / (raidPtr->Layout.numDataCol)) * raidPtr->Layout.sectorsPerStripeUnit +
- (raidSector % raidPtr->Layout.sectorsPerStripeUnit);
+ RF_StripeNum_t SUID = raidSector / raidPtr->Layout.sectorsPerStripeUnit;
+
+ *row = 0;
+ /* *col =
+ * raidPtr->Layout.numDataCol-(SUID/raidPtr->Layout.numDataCol)%(raidPt
+ * r->numCol - raidPtr->Layout.numParityLogCol); */
+ *col = raidPtr->Layout.numDataCol;
+ *diskSector = (SUID / (raidPtr->Layout.numDataCol)) * raidPtr->Layout.sectorsPerStripeUnit +
+ (raidSector % raidPtr->Layout.sectorsPerStripeUnit);
}
/* given a regionID and sector offset, determine the physical disk address of the parity log */
-void rf_MapLogParityLogging(
- RF_Raid_t *raidPtr,
- RF_RegionId_t regionID,
- RF_SectorNum_t regionOffset,
- RF_RowCol_t *row,
- RF_RowCol_t *col,
- RF_SectorNum_t *startSector)
+void
+rf_MapLogParityLogging(
+ RF_Raid_t * raidPtr,
+ RF_RegionId_t regionID,
+ RF_SectorNum_t regionOffset,
+ RF_RowCol_t * row,
+ RF_RowCol_t * col,
+ RF_SectorNum_t * startSector)
{
- *row = 0;
- *col = raidPtr->numCol - 1;
- *startSector = raidPtr->regionInfo[regionID].regionStartAddr + regionOffset;
+ *row = 0;
+ *col = raidPtr->numCol - 1;
+ *startSector = raidPtr->regionInfo[regionID].regionStartAddr + regionOffset;
}
/* given a regionID, determine the physical disk address of the logged parity for that region */
-void rf_MapRegionParity(
- RF_Raid_t *raidPtr,
- RF_RegionId_t regionID,
- RF_RowCol_t *row,
- RF_RowCol_t *col,
- RF_SectorNum_t *startSector,
- RF_SectorCount_t *numSector)
+void
+rf_MapRegionParity(
+ RF_Raid_t * raidPtr,
+ RF_RegionId_t regionID,
+ RF_RowCol_t * row,
+ RF_RowCol_t * col,
+ RF_SectorNum_t * startSector,
+ RF_SectorCount_t * numSector)
{
- *row = 0;
- *col = raidPtr->numCol - 2;
- *startSector = raidPtr->regionInfo[regionID].parityStartAddr;
- *numSector = raidPtr->regionInfo[regionID].numSectorsParity;
+ *row = 0;
+ *col = raidPtr->numCol - 2;
+ *startSector = raidPtr->regionInfo[regionID].parityStartAddr;
+ *numSector = raidPtr->regionInfo[regionID].numSectorsParity;
}
/* given a logical RAID address, determine the participating disks in the stripe */
-void rf_IdentifyStripeParityLogging(
- RF_Raid_t *raidPtr,
- RF_RaidAddr_t addr,
- RF_RowCol_t **diskids,
- RF_RowCol_t *outRow)
+void
+rf_IdentifyStripeParityLogging(
+ RF_Raid_t * raidPtr,
+ RF_RaidAddr_t addr,
+ RF_RowCol_t ** diskids,
+ RF_RowCol_t * outRow)
{
- RF_StripeNum_t stripeID = rf_RaidAddressToStripeID(&raidPtr->Layout, addr);
- RF_ParityLoggingConfigInfo_t *info = (RF_ParityLoggingConfigInfo_t *) raidPtr->Layout.layoutSpecificInfo;
- *outRow = 0;
- *diskids = info->stripeIdentifier[ stripeID % raidPtr->numCol ];
+ RF_StripeNum_t stripeID = rf_RaidAddressToStripeID(&raidPtr->Layout, addr);
+ RF_ParityLoggingConfigInfo_t *info = (RF_ParityLoggingConfigInfo_t *) raidPtr->Layout.layoutSpecificInfo;
+ *outRow = 0;
+ *diskids = info->stripeIdentifier[stripeID % raidPtr->numCol];
}
-void rf_MapSIDToPSIDParityLogging(
- RF_RaidLayout_t *layoutPtr,
- RF_StripeNum_t stripeID,
- RF_StripeNum_t *psID,
- RF_ReconUnitNum_t *which_ru)
+void
+rf_MapSIDToPSIDParityLogging(
+ RF_RaidLayout_t * layoutPtr,
+ RF_StripeNum_t stripeID,
+ RF_StripeNum_t * psID,
+ RF_ReconUnitNum_t * which_ru)
{
- *which_ru = 0;
- *psID = stripeID;
+ *which_ru = 0;
+ *psID = stripeID;
}
@@ -956,133 +793,139 @@ void rf_MapSIDToPSIDParityLogging(
* one to a function that will return information about the DAG, and
* another to a function that will create the dag.
*/
-void rf_ParityLoggingDagSelect(
- RF_Raid_t *raidPtr,
- RF_IoType_t type,
- RF_AccessStripeMap_t *asmp,
- RF_VoidFuncPtr *createFunc)
+void
+rf_ParityLoggingDagSelect(
+ RF_Raid_t * raidPtr,
+ RF_IoType_t type,
+ RF_AccessStripeMap_t * asmp,
+ RF_VoidFuncPtr * createFunc)
{
- RF_RaidLayout_t *layoutPtr = &(raidPtr->Layout);
- RF_PhysDiskAddr_t *failedPDA=NULL;
- RF_RowCol_t frow, fcol;
- RF_RowStatus_t rstat;
- int prior_recon;
- int tid;
-
- RF_ASSERT(RF_IO_IS_R_OR_W(type));
-
- if (asmp->numDataFailed + asmp->numParityFailed > 1) {
- RF_ERRORMSG("Multiple disks failed in a single group! Aborting I/O operation.\n");
- /* *infoFunc = */ *createFunc = NULL;
- return;
- } else if (asmp->numDataFailed + asmp->numParityFailed == 1) {
-
- /* if under recon & already reconstructed, redirect the access to the spare drive
- * and eliminate the failure indication
- */
- failedPDA = asmp->failedPDAs[0];
- frow = failedPDA->row; fcol = failedPDA->col;
- rstat = raidPtr->status[failedPDA->row];
- prior_recon = (rstat == rf_rs_reconfigured) || (
- (rstat == rf_rs_reconstructing) ?
- rf_CheckRUReconstructed(raidPtr->reconControl[frow]->reconMap, failedPDA->startSector) : 0
- );
- if (prior_recon) {
- RF_RowCol_t or = failedPDA->row,oc=failedPDA->col;
- RF_SectorNum_t oo=failedPDA->startSector;
- if (layoutPtr->map->flags & RF_DISTRIBUTE_SPARE) { /* redirect to dist spare space */
-
- if (failedPDA == asmp->parityInfo) {
-
- /* parity has failed */
- (layoutPtr->map->MapParity)(raidPtr, failedPDA->raidAddress, &failedPDA->row,
- &failedPDA->col, &failedPDA->startSector, RF_REMAP);
-
- if (asmp->parityInfo->next) { /* redir 2nd component, if any */
- RF_PhysDiskAddr_t *p = asmp->parityInfo->next;
- RF_SectorNum_t SUoffs = p->startSector % layoutPtr->sectorsPerStripeUnit;
- p->row = failedPDA->row;
- p->col = failedPDA->col;
- p->startSector = rf_RaidAddressOfPrevStripeUnitBoundary(layoutPtr, failedPDA->startSector) +
- SUoffs; /* cheating: startSector is not really a RAID address */
- }
-
- } else if (asmp->parityInfo->next && failedPDA == asmp->parityInfo->next) {
- RF_ASSERT(0); /* should not ever happen */
- } else {
-
- /* data has failed */
- (layoutPtr->map->MapSector)(raidPtr, failedPDA->raidAddress, &failedPDA->row,
- &failedPDA->col, &failedPDA->startSector, RF_REMAP);
-
- }
-
- } else { /* redirect to dedicated spare space */
-
- failedPDA->row = raidPtr->Disks[frow][fcol].spareRow;
- failedPDA->col = raidPtr->Disks[frow][fcol].spareCol;
-
- /* the parity may have two distinct components, both of which may need to be redirected */
- if (asmp->parityInfo->next) {
- if (failedPDA == asmp->parityInfo) {
- failedPDA->next->row = failedPDA->row;
- failedPDA->next->col = failedPDA->col;
- } else if (failedPDA == asmp->parityInfo->next) { /* paranoid: should never occur */
- asmp->parityInfo->row = failedPDA->row;
- asmp->parityInfo->col = failedPDA->col;
- }
- }
- }
-
- RF_ASSERT(failedPDA->col != -1);
-
- if (rf_dagDebug || rf_mapDebug) {
- rf_get_threadid(tid);
- printf("[%d] Redirected type '%c' r %d c %d o %ld -> r %d c %d o %ld\n",
- tid,type,or,oc,(long)oo,failedPDA->row,failedPDA->col,(long)failedPDA->startSector);
- }
-
- asmp->numDataFailed = asmp->numParityFailed = 0;
- }
-
- }
-
-
- if (type == RF_IO_TYPE_READ) {
-
- if (asmp->numDataFailed == 0)
- *createFunc = (RF_VoidFuncPtr)rf_CreateFaultFreeReadDAG;
- else
- *createFunc = (RF_VoidFuncPtr)rf_CreateRaidFiveDegradedReadDAG;
-
- }
- else {
-
-
- /* if mirroring, always use large writes. If the access requires two distinct parity updates,
- * always do a small write. If the stripe contains a failure but the access does not, do a
- * small write.
- * The first conditional (numStripeUnitsAccessed <= numDataCol/2) uses a less-than-or-equal
- * rather than just a less-than because when G is 3 or 4, numDataCol/2 is 1, and I want
- * single-stripe-unit updates to use just one disk.
- */
- if ( (asmp->numDataFailed + asmp->numParityFailed) == 0) {
- if (((asmp->numStripeUnitsAccessed <= (layoutPtr->numDataCol / 2)) && (layoutPtr->numDataCol!=1)) ||
- (asmp->parityInfo->next!=NULL) || rf_CheckStripeForFailures(raidPtr, asmp)) {
- *createFunc = (RF_VoidFuncPtr)rf_CreateParityLoggingSmallWriteDAG;
- }
- else
- *createFunc = (RF_VoidFuncPtr)rf_CreateParityLoggingLargeWriteDAG;
- }
- else
- if (asmp->numParityFailed == 1)
- *createFunc = (RF_VoidFuncPtr)rf_CreateNonRedundantWriteDAG;
- else
- if (asmp->numStripeUnitsAccessed != 1 && failedPDA->numSector != layoutPtr->sectorsPerStripeUnit)
- *createFunc = NULL;
- else
- *createFunc = (RF_VoidFuncPtr)rf_CreateDegradedWriteDAG;
- }
+ RF_RaidLayout_t *layoutPtr = &(raidPtr->Layout);
+ RF_PhysDiskAddr_t *failedPDA = NULL;
+ RF_RowCol_t frow, fcol;
+ RF_RowStatus_t rstat;
+ int prior_recon;
+ int tid;
+
+ RF_ASSERT(RF_IO_IS_R_OR_W(type));
+
+ if (asmp->numDataFailed + asmp->numParityFailed > 1) {
+ RF_ERRORMSG("Multiple disks failed in a single group! Aborting I/O operation.\n");
+ /* *infoFunc = */ *createFunc = NULL;
+ return;
+ } else
+ if (asmp->numDataFailed + asmp->numParityFailed == 1) {
+
+ /* if under recon & already reconstructed, redirect
+ * the access to the spare drive and eliminate the
+ * failure indication */
+ failedPDA = asmp->failedPDAs[0];
+ frow = failedPDA->row;
+ fcol = failedPDA->col;
+ rstat = raidPtr->status[failedPDA->row];
+ prior_recon = (rstat == rf_rs_reconfigured) || (
+ (rstat == rf_rs_reconstructing) ?
+ rf_CheckRUReconstructed(raidPtr->reconControl[frow]->reconMap, failedPDA->startSector) : 0
+ );
+ if (prior_recon) {
+ RF_RowCol_t or = failedPDA->row, oc = failedPDA->col;
+ RF_SectorNum_t oo = failedPDA->startSector;
+ if (layoutPtr->map->flags & RF_DISTRIBUTE_SPARE) { /* redirect to dist
+ * spare space */
+
+ if (failedPDA == asmp->parityInfo) {
+
+ /* parity has failed */
+ (layoutPtr->map->MapParity) (raidPtr, failedPDA->raidAddress, &failedPDA->row,
+ &failedPDA->col, &failedPDA->startSector, RF_REMAP);
+
+ if (asmp->parityInfo->next) { /* redir 2nd component,
+ * if any */
+ RF_PhysDiskAddr_t *p = asmp->parityInfo->next;
+ RF_SectorNum_t SUoffs = p->startSector % layoutPtr->sectorsPerStripeUnit;
+ p->row = failedPDA->row;
+ p->col = failedPDA->col;
+ p->startSector = rf_RaidAddressOfPrevStripeUnitBoundary(layoutPtr, failedPDA->startSector) +
+ SUoffs; /* cheating:
+ * startSector is not
+ * really a RAID address */
+ }
+ } else
+ if (asmp->parityInfo->next && failedPDA == asmp->parityInfo->next) {
+ RF_ASSERT(0); /* should not ever
+ * happen */
+ } else {
+
+ /* data has failed */
+ (layoutPtr->map->MapSector) (raidPtr, failedPDA->raidAddress, &failedPDA->row,
+ &failedPDA->col, &failedPDA->startSector, RF_REMAP);
+
+ }
+
+ } else { /* redirect to dedicated spare
+ * space */
+
+ failedPDA->row = raidPtr->Disks[frow][fcol].spareRow;
+ failedPDA->col = raidPtr->Disks[frow][fcol].spareCol;
+
+ /* the parity may have two distinct
+ * components, both of which may need
+ * to be redirected */
+ if (asmp->parityInfo->next) {
+ if (failedPDA == asmp->parityInfo) {
+ failedPDA->next->row = failedPDA->row;
+ failedPDA->next->col = failedPDA->col;
+ } else
+ if (failedPDA == asmp->parityInfo->next) { /* paranoid: should
+ * never occur */
+ asmp->parityInfo->row = failedPDA->row;
+ asmp->parityInfo->col = failedPDA->col;
+ }
+ }
+ }
+
+ RF_ASSERT(failedPDA->col != -1);
+
+ if (rf_dagDebug || rf_mapDebug) {
+ rf_get_threadid(tid);
+ printf("[%d] Redirected type '%c' r %d c %d o %ld -> r %d c %d o %ld\n",
+ tid, type, or, oc, (long) oo, failedPDA->row, failedPDA->col, (long) failedPDA->startSector);
+ }
+ asmp->numDataFailed = asmp->numParityFailed = 0;
+ }
+ }
+ if (type == RF_IO_TYPE_READ) {
+
+ if (asmp->numDataFailed == 0)
+ *createFunc = (RF_VoidFuncPtr) rf_CreateFaultFreeReadDAG;
+ else
+ *createFunc = (RF_VoidFuncPtr) rf_CreateRaidFiveDegradedReadDAG;
+
+ } else {
+
+
+ /* if mirroring, always use large writes. If the access
+ * requires two distinct parity updates, always do a small
+ * write. If the stripe contains a failure but the access
+ * does not, do a small write. The first conditional
+ * (numStripeUnitsAccessed <= numDataCol/2) uses a
+ * less-than-or-equal rather than just a less-than because
+ * when G is 3 or 4, numDataCol/2 is 1, and I want
+ * single-stripe-unit updates to use just one disk. */
+ if ((asmp->numDataFailed + asmp->numParityFailed) == 0) {
+ if (((asmp->numStripeUnitsAccessed <= (layoutPtr->numDataCol / 2)) && (layoutPtr->numDataCol != 1)) ||
+ (asmp->parityInfo->next != NULL) || rf_CheckStripeForFailures(raidPtr, asmp)) {
+ *createFunc = (RF_VoidFuncPtr) rf_CreateParityLoggingSmallWriteDAG;
+ } else
+ *createFunc = (RF_VoidFuncPtr) rf_CreateParityLoggingLargeWriteDAG;
+ } else
+ if (asmp->numParityFailed == 1)
+ *createFunc = (RF_VoidFuncPtr) rf_CreateNonRedundantWriteDAG;
+ else
+ if (asmp->numStripeUnitsAccessed != 1 && failedPDA->numSector != layoutPtr->sectorsPerStripeUnit)
+ *createFunc = NULL;
+ else
+ *createFunc = (RF_VoidFuncPtr) rf_CreateDegradedWriteDAG;
+ }
}
-
-#endif /* RF_INCLUDE_PARITYLOGGING > 0 */
+#endif /* RF_INCLUDE_PARITYLOGGING > 0 */