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