1/*
2 * volume_id - reads filesystem label and uuid
3 *
4 * Copyright (C) 2005 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
21#include "volume_id_internal.h"
22
23struct nvidia_meta {
24	uint8_t		vendor[8];
25	uint32_t	size;
26	uint32_t	chksum;
27	uint16_t	version;
28} PACKED;
29
30#define NVIDIA_SIGNATURE		"NVIDIA"
31
32int FAST_FUNC volume_id_probe_nvidia_raid(struct volume_id *id, uint64_t off, uint64_t size)
33{
34	uint64_t meta_off;
35	struct nvidia_meta *nv;
36
37	dbg("probing at offset 0x%llx, size 0x%llx",
38	    (unsigned long long) off, (unsigned long long) size);
39
40	if (size < 0x10000)
41		return -1;
42
43	meta_off = ((size / 0x200)-2) * 0x200;
44	nv = volume_id_get_buffer(id, off + meta_off, 0x200);
45	if (nv == NULL)
46		return -1;
47
48	if (memcmp(nv->vendor, NVIDIA_SIGNATURE, sizeof(NVIDIA_SIGNATURE)-1) != 0)
49		return -1;
50
51//	volume_id_set_usage(id, VOLUME_ID_RAID);
52//	snprintf(id->type_version, sizeof(id->type_version)-1, "%u", le16_to_cpu(nv->version));
53//	id->type = "nvidia_raid_member";
54
55	return 0;
56}
57