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 it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation version 2 of the License.
26 #include "volume_id.h"
29 #include "promise_raid.h"
33 } __attribute__((packed));
35 #define PDC_CONFIG_OFF 0x1200
36 #define PDC_SIGNATURE "Promise Technology, Inc."
38 int volume_id_probe_promise_fasttrack_raid(struct volume_id *id, uint64_t off, uint64_t size)
41 struct promise_meta *pdc;
43 static unsigned int sectors[] = {
44 63, 255, 256, 16, 399, 0
47 dbg("probing at offset 0x%llx, size 0x%llx",
48 (unsigned long long) off, (unsigned long long) size);
53 for (i = 0; sectors[i] != 0; i++) {
56 meta_off = ((size / 0x200) - sectors[i]) * 0x200;
57 buf = volume_id_get_buffer(id, off + meta_off, 0x200);
61 pdc = (struct promise_meta *) buf;
62 if (memcmp(pdc->sig, PDC_SIGNATURE, sizeof(PDC_SIGNATURE)-1) == 0)
68 volume_id_set_usage(id, VOLUME_ID_RAID);
69 id->type = "promise_fasttrack_raid_member";