comment "S/390 block device drivers" depends on S390 && BLOCK config BLK_DEV_XPRAM def_tristate m prompt "XPRAM disk support" depends on S390 && BLOCK 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 def_tristate m prompt "DCSSBLK support" depends on S390 && BLOCK help Support for dcss block device config DASD def_tristate y prompt "Support for DASD devices" depends on CCW && BLOCK select IOSCHED_DEADLINE 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 def_bool y prompt "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 def_tristate y prompt "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 def_tristate y prompt "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 def_tristate y prompt "Support for DIAG access to Disks" depends on DASD 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_EER def_bool y prompt "Extended error reporting (EER)" depends on DASD help This driver provides a character device interface to the DASD extended error reporting. This is only needed if you want to use applications written for the EER facility. config SCM_BLOCK def_tristate m prompt "Support for Storage Class Memory" depends on S390 && BLOCK && EADM_SCH && SCM_BUS help Block device driver for Storage Class Memory (SCM). This driver provides a block device interface for each available SCM increment. To compile this driver as a module, choose M here: the module will be called scm_block. config SCM_BLOCK_CLUSTER_WRITE def_bool y prompt "SCM force cluster writes" depends on SCM_BLOCK help Force writes to Storage Class Memory (SCM) to be in done in clusters.