dev/raidframe/rf_decluster.c

74 	RF_RaidLayout_t *layoutPtr = &(raidPtr->Layout);
95 	layoutPtr->layoutSpecificInfo = (void *) info;
99 	if (layoutPtr->map->flags & RF_DISTRIBUTE_SPARE) {
120 	if ((layoutPtr->map->flags & RF_DISTRIBUTE_SPARE) && raidPtr->noRotate) {
131 	info->SUsPerTable = b * (k - 1) * layoutPtr->SUsPerPU;	/* b blks, k-1 SUs each */
134 	info->SUsPerBlock = info->PUsPerBlock * layoutPtr->SUsPerPU;
141 	info->SpareSpaceDepthPerRegionInSUs = (r * info->TablesPerSpareRegion / (v - 1)) * layoutPtr->SUsPerPU;
145 		if (info->FullTableDepthInPUs * layoutPtr->SUsPerPU + info->SpareSpaceDepthPerRegionInSUs > layoutPtr->stripeUnitsPerDisk) {
149 			    (int) layoutPtr->stripeUnitsPerDisk);
153 		if (info->TableDepthInPUs * layoutPtr->SUsPerPU > layoutPtr->stripeUnitsPerDisk) {
155 			    (int) (info->TableDepthInPUs * layoutPtr->SUsPerPU), \
156 			    (int) layoutPtr->stripeUnitsPerDisk);
166 		PUsPerDisk = layoutPtr->stripeUnitsPerDisk / layoutPtr->SUsPerPU;
169 		info->SpareRegionDepthInSUs = spareRegionDepthInPUs * layoutPtr->SUsPerPU;
180 		extraPUsPerDisk -= (info->SpareSpaceDepthPerRegionInSUs / layoutPtr->SUsPerPU);
192 		totSparePUsPerDisk = (numCompleteSpareRegionsPerDisk + 1) * (info->SpareSpaceDepthPerRegionInSUs / layoutPtr->SUsPerPU);
195 		layoutPtr->stripeUnitsPerDisk =
199 		    ) * layoutPtr->SUsPerPU;
200 		layoutPtr->dataStripeUnitsPerDisk =
202 		    * layoutPtr->SUsPerPU * (k - 1) / k;
207 		layoutPtr->stripeUnitsPerDisk /= (info->TableDepthInPUs * layoutPtr->SUsPerPU);
208 		layoutPtr->stripeUnitsPerDisk *= (info->TableDepthInPUs * layoutPtr->SUsPerPU);
213 		    ((layoutPtr->stripeUnitsPerDisk / layoutPtr->SUsPerPU) / info->FullTableDepthInPUs);
217 		    ((layoutPtr->stripeUnitsPerDisk / layoutPtr->SUsPerPU) / info->TableDepthInPUs) % k;
220 	raidPtr->sectorsPerDisk = layoutPtr->stripeUnitsPerDisk * layoutPtr->sectorsPerStripeUnit;
225 	diskOffsetOfLastFullTableInSUs = numCompleteFullTablesPerDisk * info->FullTableDepthInPUs * layoutPtr->SUsPerPU;
230 		    diskOffsetOfLastFullTableInSUs + info->ExtraTablesPerDisk * info->TableDepthInPUs * layoutPtr->SUsPerPU;
242 	info->BlockTable = rf_make_2d_array(info->TableDepthInPUs * layoutPtr->SUsPerPU, raidPtr->numCol, raidPtr->cleanupList);
262 	for (SUID = l = 0; l < layoutPtr->SUsPerPU; l++) {
265 				info->BlockTable[(info->OffsetTable[i][j] * layoutPtr->SUsPerPU) + l]
277 	    info->SUsPerTable * layoutPtr->sectorsPerStripeUnit;
278 	layoutPtr->numStripe = (raidPtr->totalSectors / layoutPtr->sectorsPerStripeUnit) / (k - 1);
283 	layoutPtr->dataSectorsPerStripe = (k - 1) * layoutPtr->sectorsPerStripeUnit;
284 	layoutPtr->numDataCol = k - 1;
285 	layoutPtr->numParityCol = 1;
322 	RF_RaidLayout_t *layoutPtr = &(raidPtr->Layout);
323 	RF_DeclusteredConfigInfo_t *info = (RF_DeclusteredConfigInfo_t *) layoutPtr->layoutSpecificInfo;
324 	RF_StripeNum_t SUID = raidSector / layoutPtr->sectorsPerStripeUnit;
328 	RF_StripeCount_t fulltable_depth = info->FullTableDepthInPUs * layoutPtr->SUsPerPU;
331 	rf_decluster_adjust_params(layoutPtr, &SUID, &sus_per_fulltable, &fulltable_depth, &base_suid);
355 		rf_remap_to_spare_space(layoutPtr, info, FullTableID, TableID, BlockID, (base_suid) ? 1 : 0, SpareRegion, col, &outSU);
361 		outSU += TableID * info->TableDepthInPUs * layoutPtr->SUsPerPU;	/* offs to strt of tble */
362 		outSU += info->OffsetTable[BlockID][BlockOffset] * layoutPtr->SUsPerPU;	/* offs to the PU */
369 	*diskSector = outSU * layoutPtr->sectorsPerStripeUnit + (raidSector % layoutPtr->sectorsPerStripeUnit);
381 	RF_RaidLayout_t *layoutPtr = &(raidPtr->Layout);
382 	RF_DeclusteredConfigInfo_t *info = (RF_DeclusteredConfigInfo_t *) layoutPtr->layoutSpecificInfo;
383 	RF_StripeNum_t SUID = raidSector / layoutPtr->sectorsPerStripeUnit;
387 	RF_StripeCount_t fulltable_depth = info->FullTableDepthInPUs * layoutPtr->SUsPerPU;
390 	rf_decluster_adjust_params(layoutPtr, &SUID, &sus_per_fulltable, &fulltable_depth, &base_suid);
418 		rf_remap_to_spare_space(layoutPtr, info, FullTableID, TableID, BlockID, (base_suid) ? 1 : 0, SpareRegion, col, &outSU);
426 		outSU += TableID * info->TableDepthInPUs * layoutPtr->SUsPerPU;
427 		outSU += info->OffsetTable[BlockID][RepIndex] * layoutPtr->SUsPerPU;
431 	*diskSector = outSU * layoutPtr->sectorsPerStripeUnit + (raidSector % layoutPtr->sectorsPerStripeUnit);
442 	RF_RaidLayout_t *layoutPtr = &(raidPtr->Layout);
443 	RF_DeclusteredConfigInfo_t *info = (RF_DeclusteredConfigInfo_t *) layoutPtr->layoutSpecificInfo;
445 	RF_StripeCount_t fulltable_depth = info->FullTableDepthInPUs * layoutPtr->SUsPerPU;
447 	RF_StripeNum_t SUID = rf_RaidAddressToStripeUnitID(layoutPtr, addr);
451 	rf_decluster_adjust_params(layoutPtr, &SUID, &sus_per_fulltable, &fulltable_depth, &base_suid);
454 	stripeID = rf_StripeUnitIDToStripeID(layoutPtr, SUID);	/* find stripe offset
517 rf_decluster_adjust_params(RF_RaidLayout_t *layoutPtr,
523 	RF_DeclusteredConfigInfo_t *info = (RF_DeclusteredConfigInfo_t *) layoutPtr->layoutSpecificInfo;
530 		*fulltable_depth = info->ExtraTablesPerDisk * info->TableDepthInPUs * layoutPtr->SUsPerPU;
545 rf_MapSIDToPSIDDeclustered(RF_RaidLayout_t *layoutPtr,
552 	info = (RF_DeclusteredConfigInfo_t *) layoutPtr->layoutSpecificInfo;
554 	*psID = (stripeID / (layoutPtr->SUsPerPU * info->BlocksPerTable))
556 	*which_ru = (stripeID % (info->BlocksPerTable * layoutPtr->SUsPerPU))
558 	RF_ASSERT((*which_ru) < layoutPtr->SUsPerPU / layoutPtr->SUsPerRU);
565 rf_remap_to_spare_space(RF_RaidLayout_t *layoutPtr,
591 		which_ft = (info->DiskOffsetOfLastFullTableInSUs - lastSROffset) / (info->FullTableDepthInPUs * layoutPtr->SUsPerPU);
594 		ftID = info->DiskOffsetOfLastFullTableInSUs / (info->FullTableDepthInPUs * layoutPtr->SUsPerPU) + which_ft;
603 	    info->DiskOffsetOfLastFullTableInSUs + info->ExtraTablesPerDisk * info->TableDepthInPUs * layoutPtr->SUsPerPU :
606 	if (*outSU >= layoutPtr->stripeUnitsPerDisk) {
681 	RF_RaidLayout_t *layoutPtr = &raidPtr->Layout;
683 	return (((RF_DeclusteredConfigInfo_t *) layoutPtr->layoutSpecificInfo)->TotSparePUsPerDisk);
691 	RF_RaidLayout_t *layoutPtr = &raidPtr->Layout;
692 	RF_DeclusteredConfigInfo_t *info = (RF_DeclusteredConfigInfo_t *) layoutPtr->layoutSpecificInfo;