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- # SPDX-License-Identifier: GPL-2.0
- 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
- select FS_DAX_LIMITED
- select DAX_DRIVER
- 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.
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