1*1da177e4SLinus Torvaldsif ARCH_S390 2*1da177e4SLinus Torvalds 3*1da177e4SLinus Torvaldscomment "S/390 block device drivers" 4*1da177e4SLinus Torvalds depends on ARCH_S390 5*1da177e4SLinus Torvalds 6*1da177e4SLinus Torvaldsconfig BLK_DEV_XPRAM 7*1da177e4SLinus Torvalds tristate "XPRAM disk support" 8*1da177e4SLinus Torvalds depends on ARCH_S390 9*1da177e4SLinus Torvalds help 10*1da177e4SLinus Torvalds Select this option if you want to use your expanded storage on S/390 11*1da177e4SLinus Torvalds or zSeries as a disk. This is useful as a _fast_ swap device if you 12*1da177e4SLinus Torvalds want to access more than 2G of memory when running in 31 bit mode. 13*1da177e4SLinus Torvalds This option is also available as a module which will be called 14*1da177e4SLinus Torvalds xpram. If unsure, say "N". 15*1da177e4SLinus Torvalds 16*1da177e4SLinus Torvaldsconfig DCSSBLK 17*1da177e4SLinus Torvalds tristate "DCSSBLK support" 18*1da177e4SLinus Torvalds help 19*1da177e4SLinus Torvalds Support for dcss block device 20*1da177e4SLinus Torvalds 21*1da177e4SLinus Torvaldsconfig DASD 22*1da177e4SLinus Torvalds tristate "Support for DASD devices" 23*1da177e4SLinus Torvalds depends on CCW 24*1da177e4SLinus Torvalds help 25*1da177e4SLinus Torvalds Enable this option if you want to access DASDs directly utilizing 26*1da177e4SLinus Torvalds S/390s channel subsystem commands. This is necessary for running 27*1da177e4SLinus Torvalds natively on a single image or an LPAR. 28*1da177e4SLinus Torvalds 29*1da177e4SLinus Torvaldsconfig DASD_PROFILE 30*1da177e4SLinus Torvalds bool "Profiling support for dasd devices" 31*1da177e4SLinus Torvalds depends on DASD 32*1da177e4SLinus Torvalds help 33*1da177e4SLinus Torvalds Enable this option if you want to see profiling information 34*1da177e4SLinus Torvalds in /proc/dasd/statistics. 35*1da177e4SLinus Torvalds 36*1da177e4SLinus Torvaldsconfig DASD_ECKD 37*1da177e4SLinus Torvalds tristate "Support for ECKD Disks" 38*1da177e4SLinus Torvalds depends on DASD 39*1da177e4SLinus Torvalds help 40*1da177e4SLinus Torvalds ECKD devices are the most commonly used devices. You should enable 41*1da177e4SLinus Torvalds this option unless you are very sure to have no ECKD device. 42*1da177e4SLinus Torvalds 43*1da177e4SLinus Torvaldsconfig DASD_FBA 44*1da177e4SLinus Torvalds tristate "Support for FBA Disks" 45*1da177e4SLinus Torvalds depends on DASD 46*1da177e4SLinus Torvalds help 47*1da177e4SLinus Torvalds Select this option to be able to access FBA devices. It is safe to 48*1da177e4SLinus Torvalds say "Y". 49*1da177e4SLinus Torvalds 50*1da177e4SLinus Torvaldsconfig DASD_DIAG 51*1da177e4SLinus Torvalds tristate "Support for DIAG access to Disks" 52*1da177e4SLinus Torvalds depends on DASD && ARCH_S390X = 'n' 53*1da177e4SLinus Torvalds help 54*1da177e4SLinus Torvalds Select this option if you want to use Diagnose250 command to access 55*1da177e4SLinus Torvalds Disks under VM. If you are not running under VM or unsure what it is, 56*1da177e4SLinus Torvalds say "N". 57*1da177e4SLinus Torvalds 58*1da177e4SLinus Torvaldsconfig DASD_CMB 59*1da177e4SLinus Torvalds tristate "Compatibility interface for DASD channel measurement blocks" 60*1da177e4SLinus Torvalds depends on DASD 61*1da177e4SLinus Torvalds help 62*1da177e4SLinus Torvalds This driver provides an additional interface to the channel measurement 63*1da177e4SLinus Torvalds facility, which is normally accessed though sysfs, with a set of 64*1da177e4SLinus Torvalds ioctl functions specific to the dasd driver. 65*1da177e4SLinus Torvalds This is only needed if you want to use applications written for 66*1da177e4SLinus Torvalds linux-2.4 dasd channel measurement facility interface. 67*1da177e4SLinus Torvalds 68*1da177e4SLinus Torvaldsendif 69