if ARCH_S390 comment "S/390 block device drivers" depends on ARCH_S390 config BLK_DEV_XPRAM tristate "XPRAM disk support" depends on ARCH_S390 help Select this option if you want to use your expanded storage on S/390 or zSeries as a disk. This is useful as a _fast_ swap device if you want to access more than 2G of memory when running in 31 bit mode. This option is also available as a module which will be called xpram. If unsure, say "N". config DCSSBLK tristate "DCSSBLK support" help Support for dcss block device config DASD tristate "Support for DASD devices" depends on CCW help Enable this option if you want to access DASDs directly utilizing S/390s channel subsystem commands. This is necessary for running natively on a single image or an LPAR. config DASD_PROFILE bool "Profiling support for dasd devices" depends on DASD help Enable this option if you want to see profiling information in /proc/dasd/statistics. config DASD_ECKD tristate "Support for ECKD Disks" depends on DASD help ECKD devices are the most commonly used devices. You should enable this option unless you are very sure to have no ECKD device. config DASD_FBA tristate "Support for FBA Disks" depends on DASD help Select this option to be able to access FBA devices. It is safe to say "Y". config DASD_DIAG tristate "Support for DIAG access to Disks" depends on DASD && ARCH_S390X = 'n' help Select this option if you want to use Diagnose250 command to access Disks under VM. If you are not running under VM or unsure what it is, say "N". config DASD_CMB tristate "Compatibility interface for DASD channel measurement blocks" depends on DASD help This driver provides an additional interface to the channel measurement facility, which is normally accessed though sysfs, with a set of ioctl functions specific to the dasd driver. This is only needed if you want to use applications written for linux-2.4 dasd channel measurement facility interface. endif