xref: /freebsd/sys/geom/linux_lvm/g_linux_lvm.h (revision 95ee2897e98f5d444f26ed2334cc7c439f9c16c6)
113328753SAndrew Thompson /*-
2*4d846d26SWarner Losh  * SPDX-License-Identifier: BSD-2-Clause
33728855aSPedro F. Giffuni  *
413328753SAndrew Thompson  * Copyright (c) 2008 Andrew Thompson <thompsa@FreeBSD.org>
513328753SAndrew Thompson  * All rights reserved.
613328753SAndrew Thompson  *
713328753SAndrew Thompson  * Redistribution and use in source and binary forms, with or without
813328753SAndrew Thompson  * modification, are permitted provided that the following conditions
913328753SAndrew Thompson  * are met:
1013328753SAndrew Thompson  * 1. Redistributions of source code must retain the above copyright
1113328753SAndrew Thompson  *    notice, this list of conditions and the following disclaimer.
1213328753SAndrew Thompson  * 2. Redistributions in binary form must reproduce the above copyright
1313328753SAndrew Thompson  *    notice, this list of conditions and the following disclaimer in the
1413328753SAndrew Thompson  *    documentation and/or other materials provided with the distribution.
1513328753SAndrew Thompson  *
1613328753SAndrew Thompson  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
1713328753SAndrew Thompson  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1813328753SAndrew Thompson  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1913328753SAndrew Thompson  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
2013328753SAndrew Thompson  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
2113328753SAndrew Thompson  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2213328753SAndrew Thompson  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2313328753SAndrew Thompson  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2413328753SAndrew Thompson  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2513328753SAndrew Thompson  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
2613328753SAndrew Thompson  * SUCH DAMAGE.
2713328753SAndrew Thompson  */
2813328753SAndrew Thompson 
29ac03832eSConrad Meyer #define	G_LLVM_DEBUG(lvl, ...) \
30ac03832eSConrad Meyer     _GEOM_DEBUG("GEOM_LINUX_LVM", g_llvm_debug, (lvl), NULL, __VA_ARGS__)
3113328753SAndrew Thompson 
3213328753SAndrew Thompson #define	G_LLVM_CLASS_NAME	"LINUX_LVM"
3313328753SAndrew Thompson #define	G_LLVM_NAMELEN		128
3413328753SAndrew Thompson #define	G_LLVM_UUIDLEN		40
3513328753SAndrew Thompson #define	G_LLVM_MAGIC		"\040\114\126\115\062\040\170\133" \
3613328753SAndrew Thompson 				"\065\101\045\162\060\116\052\076"
3713328753SAndrew Thompson 
3813328753SAndrew Thompson struct g_llvm_label {
3913328753SAndrew Thompson 	uint64_t	ll_sector;
4013328753SAndrew Thompson 	uint32_t	ll_crc;
4113328753SAndrew Thompson 	uint32_t	ll_offset;
4213328753SAndrew Thompson 	char		ll_uuid[G_LLVM_UUIDLEN];
4313328753SAndrew Thompson 	uint64_t	ll_size;
4413328753SAndrew Thompson 	uint64_t	ll_pestart;
4513328753SAndrew Thompson 	uint64_t	ll_md_offset;
4613328753SAndrew Thompson 	uint64_t	ll_md_size;
4713328753SAndrew Thompson };
4813328753SAndrew Thompson 
4913328753SAndrew Thompson struct g_llvm_metadata {
5013328753SAndrew Thompson 	uint32_t		md_csum;
5113328753SAndrew Thompson 	uint32_t		md_version;
5213328753SAndrew Thompson 	uint64_t		md_start;
5313328753SAndrew Thompson 	uint64_t		md_size;
5413328753SAndrew Thompson 	uint64_t		md_reloffset;
5513328753SAndrew Thompson 	uint64_t		md_relsize;
5613328753SAndrew Thompson 	struct g_llvm_vg	*md_vg;
5713328753SAndrew Thompson };
5813328753SAndrew Thompson 
5913328753SAndrew Thompson struct g_llvm_lv {
6013328753SAndrew Thompson 	LIST_ENTRY(g_llvm_lv)	lv_next;
6113328753SAndrew Thompson 	struct g_llvm_vg	*lv_vg;
6213328753SAndrew Thompson 	char			lv_name[G_LLVM_NAMELEN];
6313328753SAndrew Thompson 	char			lv_uuid[G_LLVM_UUIDLEN];
6413328753SAndrew Thompson 	int			lv_sgcount;
6513328753SAndrew Thompson 	int			lv_sgactive;
6613328753SAndrew Thompson 	struct g_provider	*lv_gprov;
6713328753SAndrew Thompson 	int			lv_extentcount;
6813328753SAndrew Thompson 	LIST_HEAD(, g_llvm_segment) lv_segs;
6913328753SAndrew Thompson 	int			lv_numsegs;
7013328753SAndrew Thompson 	struct g_llvm_segment	*lv_firstsg;
7113328753SAndrew Thompson };
7213328753SAndrew Thompson 
7313328753SAndrew Thompson struct g_llvm_pv {
7413328753SAndrew Thompson 	LIST_ENTRY(g_llvm_pv)	pv_next;
7513328753SAndrew Thompson 	struct g_llvm_vg	*pv_vg;
7613328753SAndrew Thompson 	char			pv_name[G_LLVM_NAMELEN];
7713328753SAndrew Thompson 	char			pv_uuid[G_LLVM_UUIDLEN];
7813328753SAndrew Thompson 	size_t			pv_size;
7913328753SAndrew Thompson 	off_t			pv_start;
8013328753SAndrew Thompson 	int			pv_count;
8113328753SAndrew Thompson 	struct g_provider	*pv_gprov;
8213328753SAndrew Thompson 	struct g_consumer	*pv_gcons;
8313328753SAndrew Thompson };
8413328753SAndrew Thompson 
8513328753SAndrew Thompson struct g_llvm_segment {
8613328753SAndrew Thompson 	LIST_ENTRY(g_llvm_segment)	sg_next;
8713328753SAndrew Thompson 	int			sg_start;
8813328753SAndrew Thompson 	int			sg_end;
8913328753SAndrew Thompson 	int			sg_count;
9013328753SAndrew Thompson 	char			sg_pvname[G_LLVM_NAMELEN];
9113328753SAndrew Thompson 	struct g_llvm_pv	*sg_pv;
9213328753SAndrew Thompson 	int			sg_pvstart;
9313328753SAndrew Thompson 	off_t			sg_pvoffset;
9413328753SAndrew Thompson };
9513328753SAndrew Thompson 
9613328753SAndrew Thompson struct g_llvm_vg {
9713328753SAndrew Thompson 	LIST_ENTRY(g_llvm_vg)	vg_next;
9813328753SAndrew Thompson 	char			vg_name[G_LLVM_NAMELEN];
9913328753SAndrew Thompson 	char			vg_uuid[G_LLVM_UUIDLEN];
10013328753SAndrew Thompson 	size_t			vg_extentsize;
10113328753SAndrew Thompson 	int			vg_sectorsize;
10213328753SAndrew Thompson 	struct g_geom		*vg_geom;
10313328753SAndrew Thompson 	LIST_HEAD(, g_llvm_pv)	vg_pvs;
10413328753SAndrew Thompson 	LIST_HEAD(, g_llvm_lv)	vg_lvs;
10513328753SAndrew Thompson };
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