127 lines
5.1 KiB
C
127 lines
5.1 KiB
C
/* $NetBSD: rf_configure.h,v 1.1 1998/11/13 04:20:26 oster 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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* rf_configure.h
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*
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* header file for raidframe configuration in the kernel version only.
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* configuration is invoked via ioctl rather than at boot time
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*
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*******************************/
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/* :
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* Log: rf_configure.h,v
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* Revision 1.16 1996/06/19 14:57:53 jimz
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* move layout-specific config parsing hooks into RF_LayoutSW_t
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* table in rf_layout.c
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*
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* Revision 1.15 1996/06/07 21:33:04 jimz
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* begin using consistent types for sector numbers,
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* stripe numbers, row+col numbers, recon unit numbers
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*
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* Revision 1.14 1996/05/31 22:26:54 jimz
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* fix a lot of mapping problems, memory allocation problems
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* found some weird lock issues, fixed 'em
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* more code cleanup
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*
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* Revision 1.13 1996/05/30 11:29:41 jimz
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* Numerous bug fixes. Stripe lock release code disagreed with the taking code
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* about when stripes should be locked (I made it consistent: no parity, no lock)
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* There was a lot of extra serialization of I/Os which I've removed- a lot of
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* it was to calculate values for the cache code, which is no longer with us.
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* More types, function, macro cleanup. Added code to properly quiesce the array
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* on shutdown. Made a lot of stuff array-specific which was (bogusly) general
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* before. Fixed memory allocation, freeing bugs.
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*
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* Revision 1.12 1996/05/27 18:56:37 jimz
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* more code cleanup
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* better typing
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* compiles in all 3 environments
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*
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* Revision 1.11 1996/05/24 01:59:45 jimz
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* another checkpoint in code cleanup for release
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* time to sync kernel tree
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*
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* Revision 1.10 1996/05/23 00:33:23 jimz
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* code cleanup: move all debug decls to rf_options.c, all extern
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* debug decls to rf_options.h, all debug vars preceded by rf_
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*
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* Revision 1.9 1996/05/18 20:09:51 jimz
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* bit of cleanup to compile cleanly in kernel, once again
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*
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* Revision 1.8 1996/05/18 19:51:34 jimz
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* major code cleanup- fix syntax, make some types consistent,
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* add prototypes, clean out dead code, et cetera
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*
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* Revision 1.7 1995/12/01 15:16:26 root
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* added copyright info
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*
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*/
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#ifndef _RF__RF_CONFIGURE_H_
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#define _RF__RF_CONFIGURE_H_
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#include "rf_archs.h"
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#include "rf_types.h"
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#include <sys/param.h>
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#include <sys/proc.h>
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#include <sys/ioctl.h>
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/* the raidframe configuration, passed down through an ioctl.
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* the driver can be reconfigured (with total loss of data) at any time,
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* but it must be shut down first.
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*/
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struct RF_Config_s {
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RF_RowCol_t numRow, numCol, numSpare; /* number of rows, columns, and spare disks */
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dev_t devs[RF_MAXROW][RF_MAXCOL]; /* device numbers for disks comprising array */
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char devnames[RF_MAXROW][RF_MAXCOL][50]; /* device names */
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dev_t spare_devs[RF_MAXSPARE]; /* device numbers for spare disks */
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char spare_names[RF_MAXSPARE][50]; /* device names */
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RF_SectorNum_t sectPerSU; /* sectors per stripe unit */
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RF_StripeNum_t SUsPerPU; /* stripe units per parity unit */
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RF_StripeNum_t SUsPerRU; /* stripe units per reconstruction unit */
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RF_ParityConfig_t parityConfig; /* identifies the RAID architecture to be used */
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RF_DiskQueueType_t diskQueueType; /* 'f' = fifo, 'c' = cvscan, not used in kernel */
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char maxOutstandingDiskReqs; /* # concurrent reqs to be sent to a disk. not used in kernel. */
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char debugVars[RF_MAXDBGV][50]; /* space for specifying debug variables & their values */
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unsigned int layoutSpecificSize; /* size in bytes of layout-specific info */
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void *layoutSpecific; /* a pointer to a layout-specific structure to be copied in */
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};
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#ifndef KERNEL
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int rf_MakeConfig(char *configname, RF_Config_t *cfgPtr);
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int rf_MakeLayoutSpecificNULL(FILE *fp, RF_Config_t *cfgPtr, void *arg);
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int rf_MakeLayoutSpecificDeclustered(FILE *configfp, RF_Config_t *cfgPtr, void *arg);
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void *rf_ReadSpareTable(RF_SparetWait_t *req, char *fname);
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#endif /* !KERNEL */
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#endif /* !_RF__RF_CONFIGURE_H_ */
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