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Konrad Rzeszutek138fe4e2008-04-09 19:50:41 -07001/*
2 * Copyright 2007 Red Hat, Inc.
3 * by Peter Jones <pjones@redhat.com>
4 * Copyright 2007 IBM, Inc.
5 * by Konrad Rzeszutek <konradr@linux.vnet.ibm.com>
6 * Copyright 2008
7 * by Konrad Rzeszutek <ketuzsezr@darnok.org>
8 *
9 * This code exposes the iSCSI Boot Format Table to userland via sysfs.
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License v2.0 as published by
13 * the Free Software Foundation
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 */
20
21#ifndef ISCSI_IBFT_H
22#define ISCSI_IBFT_H
23
24struct ibft_table_header {
25 char signature[4];
26 u32 length;
27 u8 revision;
28 u8 checksum;
29 char oem_id[6];
30 char oem_table_id[8];
31 char reserved[24];
32} __attribute__((__packed__));
33
34/*
35 * Logical location of iSCSI Boot Format Table.
36 * If the value is NULL there is no iBFT on the machine.
37 */
38extern struct ibft_table_header *ibft_addr;
39
40/*
41 * Routine used to find and reserve the iSCSI Boot Format Table. The
42 * mapped address is set in the ibft_addr variable.
43 */
44#ifdef CONFIG_ISCSI_IBFT_FIND
45extern void __init reserve_ibft_region(void);
46#else
47static inline void reserve_ibft_region(void) { }
48#endif
49
50#endif /* ISCSI_IBFT_H */