sys/geom/linux_lvm/g_linux_lvm.h

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
   3  *
   4  * Copyright (c) 2008 Andrew Thompson <thompsa@FreeBSD.org>
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  *
  28  * $FreeBSD$
  29  */
  30
  31 #define G_LLVM_DEBUG(lvl, ...) \
  32     _GEOM_DEBUG("GEOM_LINUX_LVM", g_llvm_debug, (lvl), NULL, __VA_ARGS__)
  33
  34 #define G_LLVM_CLASS_NAME       "LINUX_LVM"
  35 #define G_LLVM_NAMELEN          128
  36 #define G_LLVM_UUIDLEN          40
  37 #define G_LLVM_MAGIC            "\040\114\126\115\062\040\170\133" \
  38                                 "\065\101\045\162\060\116\052\076"
  39
  40 struct g_llvm_label {
  41         uint64_t        ll_sector;
  42         uint32_t        ll_crc;
  43         uint32_t        ll_offset;
  44         char            ll_uuid[G_LLVM_UUIDLEN];
  45         uint64_t        ll_size;
  46         uint64_t        ll_pestart;
  47         uint64_t        ll_md_offset;
  48         uint64_t        ll_md_size;
  49 };
  50
  51 struct g_llvm_metadata {
  52         uint32_t                md_csum;
  53         uint32_t                md_version;
  54         uint64_t                md_start;
  55         uint64_t                md_size;
  56         uint64_t                md_reloffset;
  57         uint64_t                md_relsize;
  58         struct g_llvm_vg        *md_vg;
  59 };
  60
  61 struct g_llvm_lv {
  62         LIST_ENTRY(g_llvm_lv)   lv_next;
  63         struct g_llvm_vg        *lv_vg;
  64         char                    lv_name[G_LLVM_NAMELEN];
  65         char                    lv_uuid[G_LLVM_UUIDLEN];
  66         int                     lv_sgcount;
  67         int                     lv_sgactive;
  68         struct g_provider       *lv_gprov;
  69         int                     lv_extentcount;
  70         LIST_HEAD(, g_llvm_segment) lv_segs;
  71         int                     lv_numsegs;
  72         struct g_llvm_segment   *lv_firstsg;
  73 };
  74
  75 struct g_llvm_pv {
  76         LIST_ENTRY(g_llvm_pv)   pv_next;
  77         struct g_llvm_vg        *pv_vg;
  78         char                    pv_name[G_LLVM_NAMELEN];
  79         char                    pv_uuid[G_LLVM_UUIDLEN];
  80         size_t                  pv_size;
  81         off_t                   pv_start;
  82         int                     pv_count;
  83         struct g_provider       *pv_gprov;
  84         struct g_consumer       *pv_gcons;
  85 };
  86
  87 struct g_llvm_segment {
  88         LIST_ENTRY(g_llvm_segment)      sg_next;
  89         int                     sg_start;
  90         int                     sg_end;
  91         int                     sg_count;
  92         char                    sg_pvname[G_LLVM_NAMELEN];
  93         struct g_llvm_pv        *sg_pv;
  94         int                     sg_pvstart;
  95         off_t                   sg_pvoffset;
  96 };
  97
  98 struct g_llvm_vg {
  99         LIST_ENTRY(g_llvm_vg)   vg_next;
 100         char                    vg_name[G_LLVM_NAMELEN];
 101         char                    vg_uuid[G_LLVM_UUIDLEN];
 102         size_t                  vg_extentsize;
 103         int                     vg_sectorsize;
 104         struct g_geom           *vg_geom;
 105         LIST_HEAD(, g_llvm_pv)  vg_pvs;
 106         LIST_HEAD(, g_llvm_lv)  vg_lvs;
 107 };