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/types.h> |
17 | |
18 | /* |
19 | * Physical location of iSCSI Boot Format Table. |
20 | * If the value is 0 there is no iBFT on the machine. |
21 | */ |
22 | extern phys_addr_t ibft_phys_addr; |
23 | |
24 | #ifdef CONFIG_ISCSI_IBFT_FIND |
25 | |
26 | /* |
27 | * Routine used to find and reserve the iSCSI Boot Format Table. The |
28 | * physical address is set in the ibft_phys_addr variable. |
29 | */ |
30 | void reserve_ibft_region(void); |
31 | |
32 | /* |
33 | * Physical bounds to search for the iSCSI Boot Format Table. |
34 | */ |
35 | #define IBFT_START 0x80000 /* 512kB */ |
36 | #define IBFT_END 0x100000 /* 1MB */ |
37 | |
38 | #else |
39 | static inline void reserve_ibft_region(void) {} |
40 | #endif |
41 | |
42 | #endif /* ISCSI_IBFT_H */ |
43 | |