LXR linux/include/linux/iscsi

   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 */
  30extern 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
  37unsigned long find_ibft_region(unsigned long *sizep);
  38#else
  39static 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