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