f2b04ca083
convert several raidframe ioctls to be bitsize idempotent so that
they work the same in 32 and 64 bit worlds, allowing netbsd32 to
configure and query raid properly. remove useless 'row' in a few
places. add COMPAT_80 and put the old ioctls there.
raidframeio.h:
RAIDFRAME_TEST_ACC
- remove, unused
RAIDFRAME_GET_COMPONENT_LABEL
- convert to label not pointer to label
RAIDFRAME_CHECK_RECON_STATUS_EXT
RAIDFRAME_CHECK_PARITYREWRITE_STATUS_EXT
RAIDFRAME_CHECK_COPYBACK_STATUS_EXT
- convert to progress info not pointer to info
RAIDFRAME_GET_INFO
- version entirely.
raidframevar.h:
- rf_recon_req{} has row, flags and raidPtr removed (they're
not a useful part of this interface.)
- RF_Config_s{} and RF_DeviceConfig_s{} have numRow/rows removed.
- RF_RaidDisk_s{} is re-ordered slightly to fix alignment
padding - the actual data was already OK.
- InstallSpareTable() loses row argument
rf_compat32.c has code for RF_Config_s{} in 32 bit mode, used
by RAIDFRAME_CONFIGURE and RAIDFRAME_GET_INFO32.
rf_compat80.c has code for rf_recon_req{}, RF_RaidDisk_s{} and
RF_DeviceConfig_s{} to handle RAIDFRAME_FAIL_DISK,
RAIDFRAME_GET_COMPONENT_LABEL, RAIDFRAME_CHECK_RECON_STATUS_EXT,
RAIDFRAME_CHECK_PARITYREWRITE_STATUS_EXT,
RAIDFRAME_CHECK_COPYBACK_STATUS_EXT, RAIDFRAME_GET_INFO.
move several of the per-ioctl code blocks into separate functions.
add rf_recon_req_internal{} to replace old usage of global
rf_recon_req{} that had unused void * in the structure, ruining
it's 32/64 bit ABI.
add missing case for RAIDFRAME_GET_INFO50.
adjust raid tests to use the new .conf format, and add a case to
test the old method as well.
raidctl:
deal with lack of 'row' members in a couple of places.
fail request no longer takes row.
handle "START array" sections with just "numCol numSpare", ie
no "numRow" specified. for now, generate old-style configuration
but update raidctl.8 to specify the new style (keeping reference
to the old style.)
note that: RF_ComponentLabel_s::{row,num_rows} and
RF_SingleComponent_s::row are obsolete but not removed yet.
135 lines
5.3 KiB
C
135 lines
5.3 KiB
C
/* $NetBSD: rf_decluster.h,v 1.8 2018/01/18 00:32:49 mrg Exp $ */
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/*
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* Copyright (c) 1995 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Mark Holland
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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/*----------------------------------------------------------------------
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*
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* decluster.h -- header file for declustered layout code
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*
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* Adapted from raidSim version July 1994
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* Created 10-21-92 (MCH)
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*
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*--------------------------------------------------------------------*/
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#ifndef _RF__RF_DECLUSTER_H_
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#define _RF__RF_DECLUSTER_H_
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#include <dev/raidframe/raidframevar.h>
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/*
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* These structures define the tables used to locate the spare unit
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* associated with a particular data or parity unit, and to perform
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* the associated inverse mapping.
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*/
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/* this is the layout-specific info structure for the declustered layout.
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*/
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struct RF_DeclusteredConfigInfo_s {
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RF_StripeCount_t groupSize; /* no. of stripe units per parity
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* stripe */
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RF_RowCol_t **LayoutTable; /* the block design table */
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RF_RowCol_t **OffsetTable; /* the sector offset table */
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RF_RowCol_t **BlockTable; /* the block membership table */
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RF_StripeCount_t SUsPerFullTable; /* stripe units per full table */
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RF_StripeCount_t SUsPerTable; /* stripe units per table */
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RF_StripeCount_t PUsPerBlock; /* parity units per block */
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RF_StripeCount_t SUsPerBlock; /* stripe units per block */
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RF_StripeCount_t BlocksPerTable; /* block design tuples per
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* table */
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RF_StripeCount_t NumParityReps; /* tables per full table */
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RF_StripeCount_t TableDepthInPUs; /* PUs on one disk in 1 table */
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RF_StripeCount_t FullTableDepthInPUs; /* PUs on one disk in 1
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* fulltable */
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RF_StripeCount_t FullTableLimitSUID; /* SU where partial fulltables
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* start */
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RF_StripeCount_t ExtraTablesPerDisk; /* # of tables in last
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* fulltable */
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RF_SectorNum_t DiskOffsetOfLastFullTableInSUs; /* disk offs of partial
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* ft, if any */
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RF_StripeCount_t numCompleteFullTablesPerDisk; /* ft identifier of
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* partial ft, if any */
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u_int Lambda; /* the pair count in the block design */
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/* these are used only in the distributed-sparing case */
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RF_StripeCount_t FullTablesPerSpareRegion; /* # of ft's comprising
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* 1 spare region */
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RF_StripeCount_t TablesPerSpareRegion; /* # of tables */
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RF_SectorCount_t SpareSpaceDepthPerRegionInSUs; /* spare
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* space/disk/region */
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RF_SectorCount_t SpareRegionDepthInSUs; /* # of units/disk/region */
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RF_SectorNum_t DiskOffsetOfLastSpareSpaceChunkInSUs; /* locates sp space
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* after partial ft */
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RF_StripeCount_t TotSparePUsPerDisk; /* total number of spare PUs
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* per disk */
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RF_StripeCount_t NumCompleteSRs;
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RF_SpareTableEntry_t **SpareTable; /* remap table for spare space */
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char sparemap_fname[RF_SPAREMAP_NAME_LEN]; /* where to find
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* sparemap. not used in
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* kernel */
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};
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int
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rf_ConfigureDeclustered(RF_ShutdownList_t ** listp, RF_Raid_t * raidPtr,
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RF_Config_t * cfgPtr);
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int
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rf_ConfigureDeclusteredDS(RF_ShutdownList_t ** listp, RF_Raid_t * raidPtr,
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RF_Config_t * cfgPtr);
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void
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rf_MapSectorDeclustered(RF_Raid_t * raidPtr, RF_RaidAddr_t raidSector,
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RF_RowCol_t * col, RF_SectorNum_t * diskSector, int remap);
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void
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rf_MapParityDeclustered(RF_Raid_t * raidPtr, RF_RaidAddr_t raidSector,
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RF_RowCol_t * col, RF_SectorNum_t * diskSector, int remap);
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void
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rf_IdentifyStripeDeclustered(RF_Raid_t * raidPtr, RF_RaidAddr_t addr,
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RF_RowCol_t ** diskids);
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void
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rf_MapSIDToPSIDDeclustered(RF_RaidLayout_t * layoutPtr,
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RF_StripeNum_t stripeID, RF_StripeNum_t * psID,
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RF_ReconUnitNum_t * which_ru);
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int rf_InstallSpareTable(RF_Raid_t * raidPtr, RF_RowCol_t fcol);
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void rf_FreeSpareTable(RF_Raid_t * raidPtr);
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RF_HeadSepLimit_t rf_GetDefaultHeadSepLimitDeclustered(RF_Raid_t * raidPtr);
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int rf_GetDefaultNumFloatingReconBuffersDeclustered(RF_Raid_t * raidPtr);
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void
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rf_decluster_adjust_params(RF_RaidLayout_t * layoutPtr,
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RF_StripeNum_t * SUID, RF_StripeCount_t * sus_per_fulltable,
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RF_StripeCount_t * fulltable_depth, RF_StripeNum_t * base_suid);
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void
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rf_remap_to_spare_space(
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RF_RaidLayout_t * layoutPtr,
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RF_DeclusteredConfigInfo_t * info, RF_StripeNum_t FullTableID,
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RF_StripeNum_t TableID, RF_SectorNum_t BlockID, RF_StripeNum_t base_suid,
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RF_StripeNum_t SpareRegion, RF_RowCol_t * outCol, RF_StripeNum_t * outSU);
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int rf_SetSpareTable(RF_Raid_t * raidPtr, void *data);
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RF_ReconUnitCount_t rf_GetNumSpareRUsDeclustered(RF_Raid_t * raidPtr);
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#endif /* !_RF__RF_DECLUSTER_H_ */
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