1 /* 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 24 #include <linux/acpi.h> 25 26 /* 27 * Logical location of iSCSI Boot Format Table. 28 * If the value is NULL there is no iBFT on the machine. 29 */ 30 extern struct acpi_table_ibft *ibft_addr; 31 32 /* 33 * Routine used to find and reserve the iSCSI Boot Format Table. The 34 * mapped address is set in the ibft_addr variable. 35 */ 36 #ifdef CONFIG_ISCSI_IBFT_FIND 37 unsigned long find_ibft_region(unsigned long *sizep); 38 #else 39 static inline unsigned long find_ibft_region(unsigned long *sizep) 40 { 41 *sizep = 0; 42 return 0; 43 } 44 #endif 45 46 #endif /* ISCSI_IBFT_H */ 47