FreeBSD/Linux Kernel Cross Reference
sys/dev/hptrr/array.h
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 * $FreeBSD$
27 */
28 #include <dev/hptrr/hptrr_config.h>
29 /*
30 * $Id: array.h,v 1.40 2007/03/12 10:05:44 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 40
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
125
126 HPT_MMASK outdated_members;
127 HPT_MMASK offline_members;
128
129 PVDEV member[MAX_MEMBERS];
130
131 RAID_FLAGS flags;
132
133 HPT_U64 rebuilt_sectors;
134
135
136 HPT_U8 name[MAX_ARRAY_NAME];
137 PHPT_TRANSFORM transform;
138
139 TIME_RECORD create_time;
140 HPT_U8 description[64];
141 HPT_U8 create_manager[16];
142
143 #ifdef OS_SUPPORT_TASK
144 int floating_priority;
145 OSM_TASK ioctl_task;
146 IOCTL_ARG ioctl_arg;
147
148 char ioctl_inbuf[sizeof(PVDEV)+sizeof(HPT_U64)+sizeof(HPT_U16)];
149 char ioctl_outbuf[sizeof(HPT_UINT)];
150 #endif
151
152 } HPT_ARRAY, *PHPT_ARRAY;
153
154 #ifdef OS_SUPPORT_TASK
155 void ldm_start_rebuild(struct _VDEV *pArray);
156 #else
157 #define ldm_start_rebuild(pArray)
158 #endif
159
160 typedef struct _raw_partition{
161 struct _raw_partition * next;
162 HPT_RAW_LBA start;
163 HPT_RAW_LBA capacity;
164 PVDEV vd_part;
165 } RAW_PARTITION, *PRAW_PARTITION;
166
167 typedef struct hpt_partiton
168 {
169 PVDEV raw_disk;
170 HPT_RAW_LBA des_location;
171 PRAW_PARTITION raw_part;
172 HPT_U8 del_mbr;
173 HPT_U8 reserved[3];
174 } HPT_PARTITION, *PHPT_PARTITION;
175
176 HPT_U16 get_strip_size(PVDEV vd);
177
178 void ldm_check_array_online(PVDEV pArray);
179 void ldm_generic_member_failed(PVDEV member);
180 void ldm_sync_array_info(PVDEV pArray);
181 void ldm_sync_array_stamp(PVDEV pArray);
182 void ldm_add_spare_to_array(PVDEV pArray, PVDEV spare_partition);
183
184 #if defined(__cplusplus)
185 }
186 #endif
187 #endif
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