/*	$OpenBSD: rf_netbsd.h,v 1.6 2002/12/16 07:01:04 tdeval Exp $	*/
/*	$NetBSD: rf_netbsd.h,v 1.12 2000/05/28 22:53:49 oster Exp $	*/

/*
 * Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Greg Oster; Jason R. Thorpe.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the NetBSD
 *	Foundation, Inc. and its contributors.
 * 4. Neither the name of The NetBSD Foundation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef	_RF__RF_NETBSDSTUFF_H_
#define	_RF__RF_NETBSDSTUFF_H_

#ifdef	_KERNEL
#include <sys/fcntl.h>
#include <sys/systm.h>
#include <sys/namei.h>
#include <sys/vnode.h>
#endif	/* _KERNEL */

/* The per-component label information that the user can set. */
typedef struct RF_ComponentInfo_s {
	int	row;		/* The row number of this component. */
	int	column;		/* The column number of this component. */
	int	serial_number;	/*
				 * A user-specified serial number for this
				 * RAID set.
				 */
} RF_ComponentInfo_t;

/* The per-component label information */
typedef struct RF_ComponentLabel_s {
	int	version;	/* The version of this label. */
	int	serial_number;	/*
				 * A user-specified serial number for this
				 * RAID set.
				 */
	int	mod_counter;	/*
				 * Modification counter. Changed (usually
				 * by incrementing) every time the label
				 * is changed.
				 */
	int	row;		/* The row number of this component. */
	int	column;		/* The column number of this component. */
	int	num_rows;	/* Number of rows in this RAID set. */
	int	num_columns;	/* Number of columns in this RAID set. */
	int	clean;		/* 1 when clean, 0 when dirty. */
	int	status;		/*
				 * rf_ds_optimal, rf_ds_dist_spared, whatever.
				 */
	/* Stuff that will be in version 2 of the label. */
	int	sectPerSU;	/* Sectors per Stripe Unit. */
	int	SUsPerPU;	/* Stripe Units per Parity Units. */
	int	SUsPerRU;	/* Stripe Units per Reconstruction Units. */
	int	parityConfig;	/* '0' == RAID0, '1' == RAID1, etc. */
	int	maxOutstanding;	/* maxOutstanding disk requests. */
	int	blockSize;	/*
				 * Size of component block.
				 * (disklabel->d_secsize)
				 */
	int	numBlocks;	/*
				 * Number of blocks on this component.
				 * May be smaller than the partition size.
				 */
	int	partitionSize;	/*
				 * Number of blocks on this *partition*.
				 * Must exactly match the partition size
				 * from the disklabel.
				 */
	int	future_use[33];	/* Future expansion. */
	int	autoconfigure;	/*
				 * Automatically configure this RAID set.
				 * 0 == no, 1 == yes
				 */
	int	root_partition;	/*
				 * Use this set as :
				 * 0 == no, 1 == yes
				 */
	int	last_unit;	/*
				 * Last unit number (e.g. 0 for /dev/raid0)
				 * of this component. Used for autoconfigure
				 * only.
				 */
	int	config_order;	/*
				 * 0 .. n. The order in which the component
				 * should be auto-configured. E.g. 0 will be
				 * done first, (and would become raid0).
				 * This may be in conflict with last_unit !!?!
				 */
				/* Not currently used. */
	int	fut_use2[44];	/* More future expansion. */
} RF_ComponentLabel_t;

typedef struct RF_SingleComponent_s {
	int	row;
	int	column;
	char	component_name[50];	/* Name of the component. */
} RF_SingleComponent_t;

#ifdef	_KERNEL

struct raidcinfo {
	struct vnode	*ci_vp;		/* Component device's vnode. */
	dev_t		 ci_dev;	/* Component device's dev_t. */
	RF_ComponentLabel_t ci_label;	/* Components RAIDframe label. */
#if 0
	size_t		 ci_size;	/* Size. */
	char		*ci_path;	/* Path to component. */
	size_t		 ci_pathlen;	/* Length of component path. */
#endif
};


/* XXX Probably belongs in a different .h file. */
typedef struct RF_AutoConfig_s {
	char			 devname[56];	/*
						 * The name of this component.
						 */
	int			 flag;		/* A general-purpose flag. */
	dev_t			 dev;		/*
						 * The device for this
						 * component.
						 */
	struct vnode		*vp;		/* Master Vnode Pointer. */
	RF_ComponentLabel_t	*clabel;	/* The label. */
	struct RF_AutoConfig_s	*next;		/*
						 * The next autoconfig
						 * structure in this set.
						 */
} RF_AutoConfig_t;

typedef struct RF_ConfigSet_s {
	struct RF_AutoConfig_s	*ac;		/*
						 * All of the autoconfig
						 * structures for this
						 * config set.
						 */
	int			 rootable;	/*
						 * Set to 1 if this set can
						 * be root.
						 */
	struct RF_ConfigSet_s	*next;
} RF_ConfigSet_t;

#endif	/* _KERNEL */
#endif	/* _RF__RF_NETBSDSTUFF_H_ */