g_virstor_md.h

Version: - FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10

    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2005 Ivan Voras <ivoras@gmail.com>
    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 
   32 #ifndef _G_VIRSTOR_MD_H_
   33 #define _G_VIRSTOR_MD_H_
   34 
   35 /*
   36  * Metadata declaration
   37  */
   38 
   39 #define G_VIRSTOR_MAGIC         "GEOM::VIRSTOR"
   40 #define G_VIRSTOR_VERSION       1
   41 
   42 /* flag: provider is allocated */
   43 #define VIRSTOR_PROVIDER_ALLOCATED      1
   44 /* flag: provider is currently being filled (usually it's the last
   45  * provider with VIRSTOR_PROVIDER_ALLOCATED flag */
   46 #define VIRSTOR_PROVIDER_CURRENT        2
   47 
   48 struct g_virstor_metadata {
   49         /* Data global to the virstor device */
   50         char            md_magic[16];           /* Magic value. */
   51         uint32_t        md_version;             /* Version number. */
   52         char            md_name[16];            /* Device name (e.g. "mydata") */
   53         uint32_t        md_id;                  /* Unique ID. */
   54         uint64_t        md_virsize;             /* Virtual device's size */
   55         uint32_t        md_chunk_size;          /* Chunk size in bytes */
   56         uint16_t        md_count;               /* Total number of providers */
   57 
   58         /* Data local to this provider */
   59         char            provider[16];           /* Hardcoded provider name */
   60         uint16_t        no;                     /* Provider number/index */
   61         uint64_t        provsize;               /* Provider's size */
   62         uint32_t        chunk_count;            /* Number of chunks in this pr. */
   63         uint32_t        chunk_next;             /* Next chunk to allocate */
   64         uint16_t        chunk_reserved;         /* Count of "reserved" chunks */
   65         uint16_t        flags;                  /* Provider's flags */
   66 };
   67 
   68 void virstor_metadata_encode(struct g_virstor_metadata *md, unsigned char *data);
   69 void virstor_metadata_decode(unsigned char *data, struct g_virstor_metadata *md);
   70 
   71 #endif  /* !_G_VIRSTOR_H_ */

Cache object: c349cc632f424416063d838e943c0c66

[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.

FreeBSD/Linux Kernel Cross Reference sys/geom/virstor/g_virstor_md.h

FreeBSD/Linux Kernel Cross Reference
sys/geom/virstor/g_virstor_md.h