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Commit | Line | Data |
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9fa1db4c | 1 | # SPDX-License-Identifier: GPL-2.0 |
1da177e4 | 2 | comment "S/390 block device drivers" |
61d48c2c | 3 | depends on S390 && BLOCK |
1da177e4 LT |
4 | |
5 | config BLK_DEV_XPRAM | |
6f9a3c33 MS |
6 | def_tristate m |
7 | prompt "XPRAM disk support" | |
61d48c2c | 8 | depends on S390 && BLOCK |
1da177e4 LT |
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 | |
6f9a3c33 | 17 | def_tristate m |
7a2765f6 | 18 | select DAX |
6f9a3c33 | 19 | prompt "DCSSBLK support" |
61d48c2c | 20 | depends on S390 && BLOCK |
1da177e4 LT |
21 | help |
22 | Support for dcss block device | |
23 | ||
24 | config DASD | |
6f9a3c33 MS |
25 | def_tristate y |
26 | prompt "Support for DASD devices" | |
61d48c2c | 27 | depends on CCW && BLOCK |
08a8a0c5 | 28 | select IOSCHED_DEADLINE |
1da177e4 LT |
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 | |
6f9a3c33 MS |
35 | def_bool y |
36 | prompt "Profiling support for dasd devices" | |
1da177e4 LT |
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 | |
6f9a3c33 MS |
43 | def_tristate y |
44 | prompt "Support for ECKD Disks" | |
1da177e4 LT |
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 | |
6f9a3c33 MS |
51 | def_tristate y |
52 | prompt "Support for FBA Disks" | |
1da177e4 LT |
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 | |
6f9a3c33 MS |
59 | def_tristate y |
60 | prompt "Support for DIAG access to Disks" | |
d0b2eaa3 | 61 | depends on DASD |
1da177e4 LT |
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 | ||
20c64468 | 67 | config DASD_EER |
6f9a3c33 MS |
68 | def_bool y |
69 | prompt "Extended error reporting (EER)" | |
20c64468 SW |
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. | |
f30664e2 SO |
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. |