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# SPDX-License-Identifier: GPL-2.0
comment "S/390 block device drivers"
	depends on CONFIG_S390 && CONFIG_BLOCK

config CONFIG_BLK_DEV_XPRAM
	def_tristate m
	prompt "XPRAM disk support"
	depends on CONFIG_S390 && CONFIG_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 CONFIG_DCSSBLK
	def_tristate m
	select CONFIG_FS_DAX_LIMITED
	select CONFIG_DAX_DRIVER
	prompt "DCSSBLK support"
	depends on CONFIG_S390 && CONFIG_BLOCK
	help
	  Support for dcss block device

config CONFIG_DASD
	def_tristate y
	prompt "Support for DASD devices"
	depends on CONFIG_CCW && CONFIG_BLOCK
	select CONFIG_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 CONFIG_DASD_PROFILE
	def_bool y
	prompt "Profiling support for dasd devices"
	depends on CONFIG_DASD
	help
	  Enable this option if you want to see profiling information
	  in /proc/dasd/statistics.

config CONFIG_DASD_ECKD
	def_tristate y
	prompt "Support for ECKD Disks"
	depends on CONFIG_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 CONFIG_DASD_FBA
	def_tristate y
	prompt "Support for FBA  Disks"
	depends on CONFIG_DASD
	help
	  Select this option to be able to access FBA devices. It is safe to
	  say "Y".

config CONFIG_DASD_DIAG
	def_tristate y
	prompt "Support for DIAG access to Disks"
	depends on CONFIG_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 CONFIG_DASD_EER
	def_bool y
	prompt "Extended error reporting (EER)"
	depends on CONFIG_DASD
	help
	  This driver provides a character device interface to the
	  CONFIG_DASD extended error reporting. This is only needed if you want to
	  use applications written for the EER facility.

config CONFIG_SCM_BLOCK
	def_tristate m
	prompt "Support for Storage Class Memory"
	depends on CONFIG_S390 && CONFIG_BLOCK && CONFIG_EADM_SCH && CONFIG_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 CONFIG_M here: the
	  module will be called scm_block.