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         help
  30           Enable this option if you want to access DASDs directly utilizing
  31           S/390s channel subsystem commands. This is necessary for running
  32           natively on a single image or an LPAR.
  33
  34 config DASD_PROFILE
  35         def_bool y
  36         prompt "Profiling support for dasd devices"
  37         depends on DASD
  38         help
  39           Enable this option if you want to see profiling information
  40           in /proc/dasd/statistics.
  41
  42 config DASD_ECKD
  43         def_tristate y
  44         prompt "Support for ECKD Disks"
  45         depends on DASD
  46         help
  47           ECKD devices are the most commonly used devices. You should enable
  48           this option unless you are very sure to have no ECKD device.
  49
  50 config DASD_FBA
  51         def_tristate y
  52         prompt "Support for FBA  Disks"
  53         depends on DASD
  54         help
  55           Select this option to be able to access FBA devices. It is safe to
  56           say "Y".
  57
  58 config DASD_DIAG
  59         def_tristate y
  60         prompt "Support for DIAG access to Disks"
  61         depends on DASD
  62         help
  63           Select this option if you want to use Diagnose250 command to access
  64           Disks under VM.  If you are not running under VM or unsure what it is,
  65           say "N".
  66
  67 config DASD_EER
  68         def_bool y
  69         prompt "Extended error reporting (EER)"
  70         depends on DASD
  71         help
  72           This driver provides a character device interface to the
  73           DASD extended error reporting. This is only needed if you want to
  74           use applications written for the EER facility.
  75
  76 config SCM_BLOCK
  77         def_tristate m
  78         prompt "Support for Storage Class Memory"
  79         depends on S390 && BLOCK && EADM_SCH && SCM_BUS
  80         help
  81           Block device driver for Storage Class Memory (SCM). This driver
  82           provides a block device interface for each available SCM increment.
  83
  84           To compile this driver as a module, choose M here: the
  85           module will be called scm_block.