2 * volume_id - reads filesystem label and uuid
4 * Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
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.
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.
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
35 #include <asm/types.h>
37 #include "volume_id.h"
40 #include "promise_raid.h"
44 } __attribute__((packed));
46 #define PDC_CONFIG_OFF 0x1200
47 #define PDC_SIGNATURE "Promise Technology, Inc."
49 int volume_id_probe_promise_fasttrack_raid(struct volume_id *id, __u64 off, __u64 size)
52 struct promise_meta *pdc;
54 static unsigned int sectors[] = {
55 63, 255, 256, 16, 399, 0
58 dbg("probing at offset 0x%llx, size 0x%llx",
59 (unsigned long long) off, (unsigned long long) size);
64 for (i = 0; sectors[i] != 0; i++) {
67 meta_off = ((size / 0x200) - sectors[i]) * 0x200;
68 buf = volume_id_get_buffer(id, off + meta_off, 0x200);
72 pdc = (struct promise_meta *) buf;
73 if (memcmp(pdc->sig, PDC_SIGNATURE, sizeof(PDC_SIGNATURE)-1) == 0)
79 volume_id_set_usage(id, VOLUME_ID_RAID);
80 id->type = "promise_fasttrack_raid_member";