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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* 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.
*/
#ifndef ISCSI_IBFT_H
#define ISCSI_IBFT_H
#include <linux/types.h>
/*
* Physical location of iSCSI Boot Format Table.
* If the value is 0 there is no iBFT on the machine.
*/
extern phys_addr_t ibft_phys_addr;
#ifdef CONFIG_ISCSI_IBFT_FIND
/*
* Routine used to find and reserve the iSCSI Boot Format Table. The
* physical address is set in the ibft_phys_addr variable.
*/
void reserve_ibft_region(void);
/*
* Physical bounds to search for the iSCSI Boot Format Table.
*/
#define IBFT_START 0x80000 /* 512kB */
#define IBFT_END 0x100000 /* 1MB */
#else
static inline void reserve_ibft_region(void) {}
#endif
#endif /* ISCSI_IBFT_H */