1 /*
2 * volume_id - reads filesystem label and uuid
3 *
4 * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20 //config:### config FEATURE_VOLUMEID_HIGHPOINTRAID
21 //config:### bool "highpoint raid"
22 //config:### default y
23 //config:### depends on VOLUMEID
24
25 //kbuild:### lib-$(CONFIG_FEATURE_VOLUMEID_HIGHPOINTRAID) += highpoint.o
26
27 #include "volume_id_internal.h"
28
29 struct hpt37x_meta {
30 uint8_t filler1[32];
31 uint32_t magic;
32 } PACKED;
33
34 struct hpt45x_meta {
35 uint32_t magic;
36 } PACKED;
37
38 #define HPT37X_CONFIG_OFF 0x1200
39 #define HPT37X_MAGIC_OK 0x5a7816f0
40 #define HPT37X_MAGIC_BAD 0x5a7816fd
41
42 #define HPT45X_MAGIC_OK 0x5a7816f3
43 #define HPT45X_MAGIC_BAD 0x5a7816fd
44
45
volume_id_probe_highpoint_37x_raid(struct volume_id * id,uint64_t off)46 int FAST_FUNC volume_id_probe_highpoint_37x_raid(struct volume_id *id, uint64_t off)
47 {
48 struct hpt37x_meta *hpt;
49 uint32_t magic;
50
51 dbg("probing at offset 0x%llx", (unsigned long long) off);
52
53 hpt = volume_id_get_buffer(id, off + HPT37X_CONFIG_OFF, 0x200);
54 if (hpt == NULL)
55 return -1;
56
57 magic = hpt->magic;
58 if (magic != cpu_to_le32(HPT37X_MAGIC_OK) && magic != cpu_to_le32(HPT37X_MAGIC_BAD))
59 return -1;
60
61 // volume_id_set_usage(id, VOLUME_ID_RAID);
62 // id->type = "highpoint_raid_member";
63
64 return 0;
65 }
66
volume_id_probe_highpoint_45x_raid(struct volume_id * id,uint64_t off,uint64_t size)67 int FAST_FUNC volume_id_probe_highpoint_45x_raid(struct volume_id *id, uint64_t off, uint64_t size)
68 {
69 struct hpt45x_meta *hpt;
70 uint64_t meta_off;
71 uint32_t magic;
72
73 dbg("probing at offset 0x%llx, size 0x%llx",
74 (unsigned long long) off, (unsigned long long) size);
75
76 if (size < 0x10000)
77 return -1;
78
79 meta_off = ((size / 0x200)-11) * 0x200;
80 hpt = volume_id_get_buffer(id, off + meta_off, 0x200);
81 if (hpt == NULL)
82 return -1;
83
84 magic = hpt->magic;
85 if (magic != cpu_to_le32(HPT45X_MAGIC_OK) && magic != cpu_to_le32(HPT45X_MAGIC_BAD))
86 return -1;
87
88 // volume_id_set_usage(id, VOLUME_ID_RAID);
89 // id->type = "highpoint_raid_member";
90
91 return 0;
92 }
93