drivers/s390/block/Kconfig

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