2 * volume_id - reads filesystem label and uuid
4 * Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 2 of the License, or
9 * (at your option) any later version.
11 * This program 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
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
31 #include "libvolume_id.h"
32 #include "libvolume_id-private.h"
38 #define PDC_CONFIG_OFF 0x1200
39 #define PDC_SIGNATURE "Promise Technology, Inc."
41 int volume_id_probe_promise_fasttrack_raid(struct volume_id *id, uint64_t off, uint64_t size)
44 struct promise_meta *pdc;
46 static unsigned int sectors[] = {
47 63, 255, 256, 16, 399, 0
50 info("probing at offset 0x%llx, size 0x%llx\n",
51 (unsigned long long) off, (unsigned long long) size);
56 for (i = 0; sectors[i] != 0; i++) {
59 meta_off = ((size / 0x200) - sectors[i]) * 0x200;
60 buf = volume_id_get_buffer(id, off + meta_off, 0x200);
64 pdc = (struct promise_meta *) buf;
65 if (memcmp(pdc->sig, PDC_SIGNATURE, sizeof(PDC_SIGNATURE)-1) == 0)
71 volume_id_set_usage(id, VOLUME_ID_RAID);
72 id->type = "promise_fasttrack_raid_member";