xref: /openbmc/linux/drivers/s390/block/Kconfig (revision a701d28e)
1# SPDX-License-Identifier: GPL-2.0
2comment "S/390 block device drivers"
3	depends on S390 && BLOCK
4
5config 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
16config 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
25config 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
34config 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
42config 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
50config 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
58config 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
67config 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
76config 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.
86