fd49f41aa0
Add support for diag 250 access to dasd devices for 64 bit kernels. In addition fix detach/attach for diag disks. The VM control block needs to get recreated by a call to mdsk_init_io. Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
69 lines
2.0 KiB
Plaintext
69 lines
2.0 KiB
Plaintext
if ARCH_S390
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comment "S/390 block device drivers"
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depends on ARCH_S390
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config BLK_DEV_XPRAM
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tristate "XPRAM disk support"
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depends on ARCH_S390
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help
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Select this option if you want to use your expanded storage on S/390
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or zSeries as a disk. This is useful as a _fast_ swap device if you
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want to access more than 2G of memory when running in 31 bit mode.
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This option is also available as a module which will be called
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xpram. If unsure, say "N".
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config DCSSBLK
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tristate "DCSSBLK support"
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help
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Support for dcss block device
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config DASD
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tristate "Support for DASD devices"
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depends on CCW
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help
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Enable this option if you want to access DASDs directly utilizing
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S/390s channel subsystem commands. This is necessary for running
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natively on a single image or an LPAR.
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config DASD_PROFILE
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bool "Profiling support for dasd devices"
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depends on DASD
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help
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Enable this option if you want to see profiling information
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in /proc/dasd/statistics.
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config DASD_ECKD
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tristate "Support for ECKD Disks"
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depends on DASD
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help
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ECKD devices are the most commonly used devices. You should enable
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this option unless you are very sure to have no ECKD device.
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config DASD_FBA
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tristate "Support for FBA Disks"
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depends on DASD
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help
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Select this option to be able to access FBA devices. It is safe to
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say "Y".
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config DASD_DIAG
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tristate "Support for DIAG access to Disks"
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depends on DASD && ( ARCH_S390X = 'n' || EXPERIMENTAL)
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help
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Select this option if you want to use Diagnose250 command to access
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Disks under VM. If you are not running under VM or unsure what it is,
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say "N".
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config DASD_CMB
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tristate "Compatibility interface for DASD channel measurement blocks"
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depends on DASD
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help
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This driver provides an additional interface to the channel measurement
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facility, which is normally accessed though sysfs, with a set of
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ioctl functions specific to the dasd driver.
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This is only needed if you want to use applications written for
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linux-2.4 dasd channel measurement facility interface.
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endif
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