]>
git.ipfire.org Git - thirdparty/systemd.git/blob - extras/volume_id/lib/nvidia_raid.c
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"
41 #define NVIDIA_SIGNATURE "NVIDIA"
43 int volume_id_probe_nvidia_raid(struct volume_id
*id
, uint64_t off
, uint64_t size
)
47 struct nvidia_meta
*nv
;
49 info("probing at offset 0x%llx, size 0x%llx\n",
50 (unsigned long long) off
, (unsigned long long) size
);
55 meta_off
= ((size
/ 0x200)-2) * 0x200;
56 buf
= volume_id_get_buffer(id
, off
+ meta_off
, 0x200);
60 nv
= (struct nvidia_meta
*) buf
;
61 if (memcmp(nv
->vendor
, NVIDIA_SIGNATURE
, sizeof(NVIDIA_SIGNATURE
)-1) != 0)
64 volume_id_set_usage(id
, VOLUME_ID_RAID
);
65 snprintf(id
->type_version
, sizeof(id
->type_version
)-1, "%u", le16_to_cpu(nv
->version
));
66 id
->type
= "nvidia_raid_member";