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Diffstat (limited to 'sys/dev/raidframe/rf_raidframe.h')
| -rw-r--r-- | sys/dev/raidframe/rf_raidframe.h | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/sys/dev/raidframe/rf_raidframe.h b/sys/dev/raidframe/rf_raidframe.h new file mode 100644 index 00000000000..e316dd09eb4 --- /dev/null +++ b/sys/dev/raidframe/rf_raidframe.h @@ -0,0 +1,165 @@ +/* $OpenBSD: rf_raidframe.h,v 1.1 1999/01/11 14:29:44 niklas Exp $ */ +/* $NetBSD: rf_raidframe.h,v 1.1 1998/11/13 04:20:33 oster Exp $ */ +/* + * Copyright (c) 1995 Carnegie-Mellon University. + * All rights reserved. + * + * Author: Mark Holland + * + * Permission to use, copy, modify and distribute this software and + * its documentation is hereby granted, provided that both the copyright + * notice and this permission notice appear in all copies of the + * software, derivative works or modified versions, and any portions + * thereof, and that both notices appear in supporting documentation. + * + * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" + * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND + * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * Carnegie Mellon requests users of this software to return to + * + * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU + * School of Computer Science + * Carnegie Mellon University + * Pittsburgh PA 15213-3890 + * + * any improvements or extensions that they make and grant Carnegie the + * rights to redistribute these changes. + */ + +/***************************************************** + * + * rf_raidframe.h + * + * main header file for using raidframe in the kernel. + * + *****************************************************/ + +/* + * : + * + * Log: rf_raidframe.h,v + * Revision 1.21 1996/06/17 03:00:15 jimz + * Change RAIDFRAME_GET_INFO interface to work around ioctl + * size limitation problem. This operation now takes a pointer + * to a pointer, and does its own copyout() (so it can transfer + * more than 8k at a time). + * + * Revision 1.20 1996/06/07 21:33:04 jimz + * begin using consistent types for sector numbers, + * stripe numbers, row+col numbers, recon unit numbers + * + * Revision 1.19 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 1.18 1996/05/24 22:17:04 jimz + * continue code + namespace cleanup + * typed a bunch of flags + * + * Revision 1.17 1996/05/23 21:46:35 jimz + * checkpoint in code cleanup (release prep) + * lots of types, function names have been fixed + * + * Revision 1.16 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 1.15 1996/05/02 22:09:48 jimz + * change devs and spares in device_config to RF_RaidDisk_t + * + * Revision 1.14 1995/12/06 15:03:33 root + * added copyright info + * + * Revision 1.13 1995/09/30 20:39:54 jimz + * added new ioctls: + * RAIDFRAME_RESET_ACCTOTALS + * RAIDFRAME_GET_ACCTOTALS + * RAIDFRAME_KEEP_ACCTOTALS + * + * Revision 1.12 1995/09/25 20:11:51 wvcii + * Added #include "rf_raid.h" + * + * + */ + +#ifndef _RF__RF_RAIDFRAME_H_ +#define _RF__RF_RAIDFRAME_H_ + +#include "rf_types.h" +#include "rf_configure.h" +#include "rf_disks.h" +#include "rf_raid.h" + +struct rf_test_acc { /* used by RAIDFRAME_TEST_ACC ioctl */ + RF_SectorNum_t startSector; /* raidAddress */ + RF_SectorCount_t numSector; /* number of sectors to xfer */ + char *buf; /* data buffer */ + void *returnBufs[10]; /* for async accs only, completed I/Os returned */ + struct rf_test_acc *next; /* for making lists */ + RF_IoType_t type; /* (see rf_types.h for RF_IO_TYPE_*) */ + struct rf_test_acc *myaddr; /* user-address of this struct */ + void *bp; /* used in-kernel: need not be set by user */ +}; + +typedef RF_uint32 RF_ReconReqFlags_t; + +struct rf_recon_req { /* used to tell the kernel to fail a disk */ + RF_RowCol_t row, col; + RF_ReconReqFlags_t flags; + void *raidPtr; /* used internally; need not be set at ioctl time */ + struct rf_recon_req *next; /* used internally; need not be set at ioctl time */ +}; + +struct RF_SparetWait_s { + int C, G, fcol; /* C = # disks in row, G = # units in stripe, fcol = which disk has failed */ + + RF_StripeCount_t SUsPerPU; /* this stuff is the info required to create a spare table */ + int TablesPerSpareRegion; + int BlocksPerTable; + RF_StripeCount_t TableDepthInPUs; + RF_StripeCount_t SpareSpaceDepthPerRegionInSUs; + + RF_SparetWait_t *next; /* used internally; need not be set at ioctl time */ +}; + +typedef struct RF_DeviceConfig_s { + u_int rows; + u_int cols; + u_int maxqdepth; + int ndevs; + RF_RaidDisk_t devs[RF_MAX_DISKS]; + int nspares; + RF_RaidDisk_t spares[RF_MAX_DISKS]; +} RF_DeviceConfig_t; + + +/* flags that can be put in the rf_recon_req structure */ +#define RF_FDFLAGS_NONE 0x0 /* just fail the disk */ +#define RF_FDFLAGS_RECON 0x1 /* fail and initiate recon */ + +#define RF_SCSI_DISK_MAJOR 8 /* the device major number for disks in the system */ + +#define RAIDFRAME_CONFIGURE _IOW ('r', 1, void *) /* configure the driver */ +#define RAIDFRAME_SHUTDOWN _IO ('r', 2) /* shutdown the driver */ +#define RAIDFRAME_TUR _IOW ('r', 3, dev_t) /* debug only: test unit ready */ +#define RAIDFRAME_TEST_ACC _IOWR('r', 4, struct rf_test_acc) /* run a test access */ +#define RAIDFRAME_FAIL_DISK _IOW ('r', 5, struct rf_recon_req) /* fail a disk & optionally start recon */ +#define RAIDFRAME_CHECKRECON _IOWR('r', 6, int) /* get reconstruction % complete on indicated row */ +#define RAIDFRAME_REWRITEPARITY _IO ('r', 7) /* rewrite (initialize) all parity */ +#define RAIDFRAME_COPYBACK _IO ('r', 8) /* copy reconstructed data back to replaced disk */ +#define RAIDFRAME_SPARET_WAIT _IOR ('r', 9, RF_SparetWait_t) /* does not return until kernel needs a spare table */ +#define RAIDFRAME_SEND_SPARET _IOW ('r', 10, void *) /* used to send a spare table down into the kernel */ +#define RAIDFRAME_ABORT_SPARET_WAIT _IO ('r', 11) /* used to wake up the sparemap daemon & tell it to exit */ +#define RAIDFRAME_START_ATRACE _IO ('r', 12) /* start tracing accesses */ +#define RAIDFRAME_STOP_ATRACE _IO ('r', 13) /* stop tracing accesses */ +#define RAIDFRAME_GET_SIZE _IOR ('r', 14, int) /* get size (# sectors) in raid device */ +#define RAIDFRAME_GET_INFO _IOWR('r', 15, RF_DeviceConfig_t *) /* get configuration */ +#define RAIDFRAME_RESET_ACCTOTALS _IO ('r', 16) /* reset AccTotals for device */ +#define RAIDFRAME_GET_ACCTOTALS _IOR ('r', 17, RF_AccTotals_t) /* retrieve AccTotals for device */ +#define RAIDFRAME_KEEP_ACCTOTALS _IOW ('r', 18, int) /* turn AccTotals on or off for device */ + +#endif /* !_RF__RF_RAIDFRAME_H_ */ |