1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * Copyright 2007 Red Hat, Inc.
4 * by Peter Jones <pjones@redhat.com>
5 * Copyright 2007 IBM, Inc.
6 * by Konrad Rzeszutek <konradr@linux.vnet.ibm.com>
7 * Copyright 2008
8 * by Konrad Rzeszutek <ketuzsezr@darnok.org>
9 *
10 * This code exposes the iSCSI Boot Format Table to userland via sysfs.
11 */
12
13 #ifndef ISCSI_IBFT_H
14 #define ISCSI_IBFT_H
15
16 #include <linux/acpi.h>
17
18 /*
19 * Logical location of iSCSI Boot Format Table.
20 * If the value is NULL there is no iBFT on the machine.
21 */
22 extern struct acpi_table_ibft *ibft_addr;
23
24 /*
25 * Routine used to find and reserve the iSCSI Boot Format Table. The
26 * mapped address is set in the ibft_addr variable.
27 */
28 #ifdef CONFIG_ISCSI_IBFT_FIND
29 unsigned long find_ibft_region(unsigned long *sizep);
30 #else
31 static inline unsigned long find_ibft_region(unsigned long *sizep)
32 {
33 *sizep = 0;
34 return 0;
35 }
36 #endif
37
38 #endif /* ISCSI_IBFT_H */