[net-next-2.6.git] / include / linux / iscsi_ibft.h

/*
 *  Copyright 2007 Red Hat, Inc.
 *  by Peter Jones <pjones@redhat.com>
 *  Copyright 2007 IBM, Inc.
 *  by Konrad Rzeszutek <konradr@linux.vnet.ibm.com>
 *  Copyright 2008
 *  by Konrad Rzeszutek <ketuzsezr@darnok.org>
 *
 * This code exposes the iSCSI Boot Format Table to userland via sysfs.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License v2.0 as published by
 * the Free Software Foundation
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#ifndef ISCSI_IBFT_H
#define ISCSI_IBFT_H

struct ibft_table_header {
	char signature[4];
	u32 length;
	u8 revision;
	u8 checksum;
	char oem_id[6];
	char oem_table_id[8];
	char reserved[24];
} __attribute__((__packed__));

/*
 * Logical location of iSCSI Boot Format Table.
 * If the value is NULL there is no iBFT on the machine.
 */
extern struct ibft_table_header *ibft_addr;

/*
 * Routine used to find and reserve the iSCSI Boot Format Table. The
 * mapped address is set in the ibft_addr variable.
 */
#ifdef CONFIG_ISCSI_IBFT_FIND
unsigned long find_ibft_region(unsigned long *sizep);
#else
static inline unsigned long find_ibft_region(unsigned long *sizep)
{
	*sizep = 0;
	return 0;
}
#endif

#endif /* ISCSI_IBFT_H */
Commit	Line	Data
138fe4e0 KR	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	struct ibft_table_header {
	25	char signature[4];
	26	u32 length;
	27	u8 revision;
	28	u8 checksum;
	29	char oem_id[6];
	30	char oem_table_id[8];
	31	char reserved[24];
	32	} __attribute__((__packed__));
	33
	34	/*
	35	* Logical location of iSCSI Boot Format Table.
	36	* If the value is NULL there is no iBFT on the machine.
	37	*/
	38	extern struct ibft_table_header *ibft_addr;
	39
	40	/*
	41	* Routine used to find and reserve the iSCSI Boot Format Table. The
	42	* mapped address is set in the ibft_addr variable.
	43	*/
	44	#ifdef CONFIG_ISCSI_IBFT_FIND
042be38e	45	unsigned long find_ibft_region(unsigned long *sizep);
138fe4e0	46	#else
042be38e YL	47	static inline unsigned long find_ibft_region(unsigned long *sizep)
	48	{
	49	*sizep = 0;
	50	return 0;
	51	}
138fe4e0 KR	52	#endif
	53
	54	#endif /* ISCSI_IBFT_H */