The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/hptrr/array.h

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    1 /*
    2  * Copyright (c) HighPoint Technologies, Inc.
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  *
   26  * $FreeBSD: releng/8.4/sys/dev/hptrr/array.h 176018 2008-02-06 01:02:20Z scottl $
   27  */
   28 #include <dev/hptrr/hptrr_config.h>
   29 /*
   30  * $Id: array.h,v 1.44 2007/11/01 03:05:27 gmm Exp $
   31  * Copyright (C) 2004-2005 HighPoint Technologies, Inc. All rights reserved.
   32  */
   33 #ifndef _HPT_ARRAY_H_
   34 #define _HPT_ARRAY_H_
   35 
   36 #define VERMAGIC_ARRAY 43
   37 
   38 #if defined(__cplusplus)
   39 extern "C" {
   40 #endif
   41 
   42 #define MAX_ARRAY_NAME 16
   43 
   44 #ifndef MAX_MEMBERS
   45 #define MAX_MEMBERS    16
   46 #endif
   47 
   48 #if MAX_MEMBERS<=16
   49 typedef HPT_U16 HPT_MMASK;
   50 #elif MAX_MEMBERS<=32
   51 typedef HPT_U32 HPT_MMASK;
   52 #elif MAX_MEMBERS<=64
   53 typedef HPT_U64 HPT_MMASK;
   54 #else 
   55 #error "MAX_MEMBERS too large"
   56 #endif
   57 
   58 #define HPT_MMASK_VALUE(x) (HPT_MMASK)((HPT_MMASK)1<<(x))
   59 
   60 #if MAX_MEMBERS<32
   61 #define HPT_MMASK_VALUE_SAFE(x) HPT_MMASK_VALUE(x)
   62 #else 
   63 #define HPT_MMASK_VALUE_SAFE(x) ((x)>=MAX_MEMBERS? (HPT_MMASK)0 : HPT_MMASK_VALUE(x))
   64 #endif
   65 
   66 #define MAX_REBUILD_SECTORS 128
   67 
   68 typedef struct _RAID_FLAGS {
   69         HPT_UINT rf_need_initialize : 1;    
   70         HPT_UINT rf_need_rebuild: 1;        
   71         HPT_UINT rf_need_sync: 1;           
   72         /* ioctl flags */
   73         HPT_UINT rf_auto_rebuild: 1;
   74         HPT_UINT rf_rebuilding: 1;          
   75         HPT_UINT rf_verifying: 1;
   76         HPT_UINT rf_initializing: 1;        
   77         HPT_UINT rf_abort_verifying: 1;
   78         HPT_UINT rf_raid15: 1;
   79         HPT_UINT rf_v3_format : 1;
   80         HPT_UINT rf_need_transform : 1;
   81         HPT_UINT rf_transforming : 1;
   82         HPT_UINT rf_abort_transform : 1;
   83         HPT_UINT rf_log_write: 1;           
   84 } RAID_FLAGS;
   85 
   86 typedef struct transform_cmd_ext
   87 {
   88         HPT_LBA lba;
   89         HPT_U16 total_sectors;
   90         HPT_U16 finished_sectors;
   91 } TRANSFORM_CMD_EXT , *PTRANSFORM_CMD_EXT;
   92 
   93 
   94 #define TO_MOVE_DATA        0
   95 #define TO_INITIALIZE       1
   96 #define TO_INITIALIZE_ONLY  2
   97 #define TO_MOVE_DATA_ONLY   3
   98 typedef struct hpt_transform
   99 {
  100         HPT_U32 stamp;
  101         PVDEV source;
  102         PVDEV target;
  103         struct list_head link;
  104         HPT_U8 transform_from_tail;
  105         struct tq_item task;
  106         
  107         struct lock_request lock;
  108         TRANSFORM_CMD_EXT cmdext;
  109 
  110         HPT_U64 transform_point;
  111         HPT_U16 transform_sectors_per_step;
  112         HPT_U8  operation;
  113         HPT_U8  disabled; 
  114 } HPT_TRANSFORM, *PHPT_TRANSFORM;
  115 
  116 typedef struct hpt_array
  117 {
  118         HPT_U32 array_stamp;
  119         HPT_U32 data_stamp;  
  120 
  121         HPT_U8  ndisk;
  122         HPT_U8  block_size_shift;
  123         HPT_U16 strip_width;
  124         HPT_U8  sector_size_shift; /*sector size = 512B<<sector_size_shift*/
  125         HPT_U8  jid; 
  126         HPT_U8  reserved[2];
  127 
  128         
  129         HPT_MMASK outdated_members;
  130         HPT_MMASK offline_members;
  131 
  132         PVDEV member[MAX_MEMBERS];
  133 
  134         RAID_FLAGS flags;
  135 
  136         HPT_U64 rebuilt_sectors;
  137 
  138         
  139         HPT_U8 name[MAX_ARRAY_NAME];
  140         PHPT_TRANSFORM transform;
  141 
  142         TIME_RECORD create_time;        
  143         HPT_U8  description[64];        
  144         HPT_U8  create_manager[16];     
  145 
  146 #ifdef OS_SUPPORT_TASK
  147         int floating_priority;
  148         OSM_TASK ioctl_task;
  149         IOCTL_ARG ioctl_arg;
  150         
  151         char ioctl_inbuf[sizeof(PVDEV)+sizeof(HPT_U64)+sizeof(HPT_U16)];
  152         char ioctl_outbuf[sizeof(HPT_UINT)];
  153 #endif
  154 
  155 } HPT_ARRAY, *PHPT_ARRAY;
  156 
  157 #ifdef OS_SUPPORT_TASK
  158 void ldm_start_rebuild(struct _VDEV *pArray);
  159 #else 
  160 #define ldm_start_rebuild(pArray)
  161 #endif
  162 
  163 typedef struct _raw_partition{
  164         struct _raw_partition * next;
  165         __HPT_RAW_LBA start;
  166         __HPT_RAW_LBA capacity;
  167         PVDEV   vd_part;
  168 } RAW_PARTITION, *PRAW_PARTITION;
  169 
  170 typedef struct hpt_partiton
  171 {
  172         PVDEV raw_disk;
  173         __HPT_RAW_LBA des_location;
  174         PRAW_PARTITION raw_part;
  175         HPT_U8  del_mbr;
  176         HPT_U8  reserved[3];
  177 } HPT_PARTITION, *PHPT_PARTITION;
  178 
  179 HPT_U16 get_strip_size(PVDEV vd);
  180 
  181 void ldm_check_array_online(PVDEV pArray);
  182 void ldm_generic_member_failed(PVDEV member);
  183 void ldm_sync_array_info(PVDEV pArray);
  184 void ldm_sync_array_stamp(PVDEV pArray);
  185 void ldm_add_spare_to_array(PVDEV pArray, PVDEV spare_partition);
  186 
  187 #if defined(__cplusplus)
  188 }
  189 #endif
  190 #endif

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