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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2003 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _LAYOUT_SLICE_H
#define _LAYOUT_SLICE_H
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef __cplusplus
extern "C" {
#endif
#include "libdiskmgt.h"
#include "volume_devconfig.h"
#include "volume_dlist.h"
/*
* struct to track which slices need to be explicitly "removed" from
* the system before applying any metassist updates/changes.
*/
typedef struct {
char *slice_name;
uint32_t slice_index;
} rmvdslice_t;
extern void release_slices_to_remove();
extern dlist_t *get_slices_to_remove();
extern int add_slice_to_remove(char *name, uint32_t index);
/*
* struct to track which slices have been explicitly modified
* during the layout process...
*
* src_slice_desc is the dm_descriptor_t of the slice which provided the
* space (this is only relevant to slices that have been created by
* taking space from some other "source" slice).
* slice_devconfig is the devconfig_t struct with the modified slice properties.
* times_modified is the number of times the slice has been modified
* (this is only relevant to slices that have been resized to
* provide space for new slices)
* volume_component is used to control when the slice_devcfg is freed.
* if volume_component is B_TRUE, the devconfig is returned as part
* of the result of layout and so cannot be freed by
* release_modified_slices.
*/
typedef struct {
dm_descriptor_t src_slice_desc;
devconfig_t *slice_devcfg;
int times_modified;
boolean_t volume_component;
} modslice_t;
extern dlist_t *get_modified_slices();
extern int release_modified_slices();
extern int make_slicename_for_diskname_and_index(
char *diskname,
uint16_t index,
char **slicename);
extern int assemble_modified_slice(
dm_descriptor_t src_slice_desc,
char *mod_name,
uint32_t mod_index,
uint64_t mod_stblk,
uint64_t mod_nblks,
uint64_t mod_size,
devconfig_t **mod_slice);
extern int choose_slice(
uint64_t nbytes,
uint16_t npaths,
dlist_t *slices,
dlist_t *used,
dlist_t *used_hbas,
dlist_t *used_disks,
boolean_t unused_disk,
boolean_t nbytes_is_min,
boolean_t add_extra_cyl,
devconfig_t **chosen);
extern int create_devconfig_for_slice(
dm_descriptor_t slice,
devconfig_t **newslice);
extern int destroy_new_slice(
devconfig_t *vol);
/*
* accessors for the list of used slice names for named diskset.
*/
extern int is_used_slice(dm_descriptor_t slice, boolean_t *is_used);
extern int add_used_slice_by_name(char *slicename);
extern int remove_used_slice_by_name(char *slicename);
extern int add_used_slice(dm_descriptor_t slice);
extern void release_used_slices();
extern int disk_has_used_slice(dm_descriptor_t disk, boolean_t *inuse);
/*
* accessors to track slices reserved for use in explicit
* volume requests
*/
extern int add_reserved_slice(dm_descriptor_t slice);
extern int is_reserved_slice(dm_descriptor_t slice, boolean_t *is_rsvd);
extern int get_reserved_slices(dlist_t **list);
extern void release_reserved_slices();
#ifdef __cplusplus
}
#endif
#endif /* _LAYOUT_SLICE_H */
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