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 */ 39