drivers/s390/block/Kconfig

   1 # SPDX-License-Identifier: GPL-2.0
   2 comment "S/390 block device drivers"
   3         depends on S390 && BLOCK
   4
   5 config BLK_DEV_XPRAM
   6         def_tristate m
   7         prompt "XPRAM disk support"
   8         depends on S390 && BLOCK
   9         help
  10           Select this option if you want to use your expanded storage on S/390
  11           or zSeries as a disk.  This is useful as a _fast_ swap device if you
  12           want to access more than 2G of memory when running in 31 bit mode.
  13           This option is also available as a module which will be called
  14           xpram.  If unsure, say "N".
  15
  16 config DCSSBLK
  17         def_tristate m
  18         select FS_DAX_LIMITED
  19         select DAX_DRIVER
  20         prompt "DCSSBLK support"
  21         depends on S390 && BLOCK
  22         help
  23           Support for dcss block device
  24
  25 config DASD
  26         def_tristate y
  27         prompt "Support for DASD devices"
  28         depends on CCW && BLOCK
  29         select IOSCHED_DEADLINE
  30         help
  31           Enable this option if you want to access DASDs directly utilizing
  32           S/390s channel subsystem commands. This is necessary for running
  33           natively on a single image or an LPAR.
  34
  35 config DASD_PROFILE
  36         def_bool y
  37         prompt "Profiling support for dasd devices"
  38         depends on DASD
  39         help
  40           Enable this option if you want to see profiling information
  41           in /proc/dasd/statistics.
  42
  43 config DASD_ECKD
  44         def_tristate y
  45         prompt "Support for ECKD Disks"
  46         depends on DASD
  47         help
  48           ECKD devices are the most commonly used devices. You should enable
  49           this option unless you are very sure to have no ECKD device.
  50
  51 config DASD_FBA
  52         def_tristate y
  53         prompt "Support for FBA  Disks"
  54         depends on DASD
  55         help
  56           Select this option to be able to access FBA devices. It is safe to
  57           say "Y".
  58
  59 config DASD_DIAG
  60         def_tristate y
  61         prompt "Support for DIAG access to Disks"
  62         depends on DASD
  63         help
  64           Select this option if you want to use Diagnose250 command to access
  65           Disks under VM.  If you are not running under VM or unsure what it is,
  66           say "N".
  67
  68 config DASD_EER
  69         def_bool y
  70         prompt "Extended error reporting (EER)"
  71         depends on DASD
  72         help
  73           This driver provides a character device interface to the
  74           DASD extended error reporting. This is only needed if you want to
  75           use applications written for the EER facility.
  76
  77 config SCM_BLOCK
  78         def_tristate m
  79         prompt "Support for Storage Class Memory"
  80         depends on S390 && BLOCK && EADM_SCH && SCM_BUS
  81         help
  82           Block device driver for Storage Class Memory (SCM). This driver
  83           provides a block device interface for each available SCM increment.
  84
  85           To compile this driver as a module, choose M here: the
  86           module will be called scm_block.