1347a8dc3SMartin Schwidefskyif S390 21da177e4SLinus Torvalds 31da177e4SLinus Torvaldscomment "S/390 block device drivers" 4347a8dc3SMartin Schwidefsky depends on S390 51da177e4SLinus Torvalds 61da177e4SLinus Torvaldsconfig BLK_DEV_XPRAM 71da177e4SLinus Torvalds tristate "XPRAM disk support" 8347a8dc3SMartin Schwidefsky depends on S390 91da177e4SLinus Torvalds help 101da177e4SLinus Torvalds Select this option if you want to use your expanded storage on S/390 111da177e4SLinus Torvalds or zSeries as a disk. This is useful as a _fast_ swap device if you 121da177e4SLinus Torvalds want to access more than 2G of memory when running in 31 bit mode. 131da177e4SLinus Torvalds This option is also available as a module which will be called 141da177e4SLinus Torvalds xpram. If unsure, say "N". 151da177e4SLinus Torvalds 161da177e4SLinus Torvaldsconfig DCSSBLK 171da177e4SLinus Torvalds tristate "DCSSBLK support" 181da177e4SLinus Torvalds help 191da177e4SLinus Torvalds Support for dcss block device 201da177e4SLinus Torvalds 211da177e4SLinus Torvaldsconfig DASD 221da177e4SLinus Torvalds tristate "Support for DASD devices" 231da177e4SLinus Torvalds depends on CCW 241da177e4SLinus Torvalds help 251da177e4SLinus Torvalds Enable this option if you want to access DASDs directly utilizing 261da177e4SLinus Torvalds S/390s channel subsystem commands. This is necessary for running 271da177e4SLinus Torvalds natively on a single image or an LPAR. 281da177e4SLinus Torvalds 291da177e4SLinus Torvaldsconfig DASD_PROFILE 301da177e4SLinus Torvalds bool "Profiling support for dasd devices" 311da177e4SLinus Torvalds depends on DASD 321da177e4SLinus Torvalds help 331da177e4SLinus Torvalds Enable this option if you want to see profiling information 341da177e4SLinus Torvalds in /proc/dasd/statistics. 351da177e4SLinus Torvalds 361da177e4SLinus Torvaldsconfig DASD_ECKD 371da177e4SLinus Torvalds tristate "Support for ECKD Disks" 381da177e4SLinus Torvalds depends on DASD 391da177e4SLinus Torvalds help 401da177e4SLinus Torvalds ECKD devices are the most commonly used devices. You should enable 411da177e4SLinus Torvalds this option unless you are very sure to have no ECKD device. 421da177e4SLinus Torvalds 431da177e4SLinus Torvaldsconfig DASD_FBA 441da177e4SLinus Torvalds tristate "Support for FBA Disks" 451da177e4SLinus Torvalds depends on DASD 461da177e4SLinus Torvalds help 471da177e4SLinus Torvalds Select this option to be able to access FBA devices. It is safe to 481da177e4SLinus Torvalds say "Y". 491da177e4SLinus Torvalds 501da177e4SLinus Torvaldsconfig DASD_DIAG 511da177e4SLinus Torvalds tristate "Support for DIAG access to Disks" 52d0b2eaa3SPeter Oberparleiter depends on DASD 531da177e4SLinus Torvalds help 541da177e4SLinus Torvalds Select this option if you want to use Diagnose250 command to access 551da177e4SLinus Torvalds Disks under VM. If you are not running under VM or unsure what it is, 561da177e4SLinus Torvalds say "N". 571da177e4SLinus Torvalds 581da177e4SLinus Torvaldsendif 59