freebsd-skq/sys/dev/raidframe/rf_raidframe.h

/*	$FreeBSD$ */
/*	$NetBSD: rf_raidframe.h,v 1.11 2000/05/28 00:48:31 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 <dev/raidframe/rf_types.h>
#include <dev/raidframe/rf_configure.h>
#include <dev/raidframe/rf_disks.h>
#include <dev/raidframe/rf_raid.h>

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;

typedef struct RF_ProgressInfo_s {
	RF_uint64 remaining;
	RF_uint64 completed;
	RF_uint64 total;
} RF_ProgressInfo_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 *)	/* config an array */
#if defined(__NetBSD__)
#define RAIDFRAME_SHUTDOWN	_IO  ('r',  2)		/* shutdown the array */
#elif defined(__FreeBSD__)
#define RAIDFRAME_SHUTDOWN	_IOW ('r',  2, int)	/* shutdown the array */
#endif
#define RAIDFRAME_TUR		_IOW ('r',  3, dev_t)	/* debug only: test
							 * 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_CHECK_RECON_STATUS _IOR('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)
#define RAIDFRAME_CHECK_PARITY		_IOWR ('r', 25, int)
#define RAIDFRAME_CHECK_PARITYREWRITE_STATUS _IOR ('r', 26, int)
#define RAIDFRAME_CHECK_COPYBACK_STATUS	_IOR ('r', 27, int)
#define RAIDFRAME_SET_AUTOCONFIG	_IOWR ('r', 28, int)
#define RAIDFRAME_SET_ROOT		_IOWR ('r', 29, int)
#define RAIDFRAME_DELETE_COMPONENT	_IOW  ('r', 30, RF_SingleComponent_t)
#define RAIDFRAME_INCORPORATE_HOT_SPARE _IOW ('r', 31, RF_SingleComponent_t)

/* 'Extended' status versions */
#define RAIDFRAME_CHECK_RECON_STATUS_EXT _IOR('r',  32, RF_ProgressInfo_t)
#define RAIDFRAME_CHECK_PARITYREWRITE_STATUS_EXT _IOR ('r', 33, \
							RF_ProgressInfo_t)
#define RAIDFRAME_CHECK_COPYBACK_STATUS_EXT _IOR ('r', 34, RF_ProgressInfo_t)
#define	RAIDFRAME_GET_UNIT		_IOWR ('r', 35, int)

#endif				/* !_RF__RF_RAIDFRAME_H_ */