[3320] | 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 |
|
---|
| 23 | struct 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 |
|
---|
| 32 | int 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 | }
|
---|