Current File : //lib/modules/3.10.0-957.21.3.el7.centos.plus.x86_64/source/drivers/s390/block/Kconfig
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.
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.
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