144 lines
5.4 KiB
C
144 lines
5.4 KiB
C
/* $NetBSD: rf_raidframe.h,v 1.5 1999/03/02 03:18:48 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.
|
|
*
|
|
*****************************************************/
|
|
|
|
|
|
#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 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 */
|
|
#define RAIDFRAME_GET_COMPONENT_LABEL _IOWR ('r', 19, RF_ComponentLabel_t *)
|
|
#define RAIDFRAME_SET_COMPONENT_LABEL _IOW ('r', 20, RF_ComponentLabel_t)
|
|
|
|
#define RAIDFRAME_INIT_LABELS _IOW ('r', 21, RF_ComponentLabel_t)
|
|
#define RAIDFRAME_ADD_HOT_SPARE _IOW ('r', 22, RF_SingleComponent_t)
|
|
#define RAIDFRAME_REMOVE_HOT_SPARE _IOW ('r', 23, RF_SingleComponent_t)
|
|
#define RAIDFRAME_REBUILD_IN_PLACE _IOW ('r', 24, RF_SingleComponent_t)
|
|
|
|
#endif /* !_RF__RF_RAIDFRAME_H_ */
|