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Diffstat (limited to 'kernel/include/linux/iscsi_ibft.h')
| -rw-r--r-- | kernel/include/linux/iscsi_ibft.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/kernel/include/linux/iscsi_ibft.h b/kernel/include/linux/iscsi_ibft.h new file mode 100644 index 000000000..605cc5c33 --- /dev/null +++ b/kernel/include/linux/iscsi_ibft.h @@ -0,0 +1,46 @@ +/* + * 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 + +#include <linux/acpi.h> + +/* + * Logical location of iSCSI Boot Format Table. + * If the value is NULL there is no iBFT on the machine. + */ +extern struct acpi_table_ibft *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 */ |