| rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame^] | 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 | select DAX |
| 18 | prompt "DCSSBLK support" |
| 19 | depends on S390 && BLOCK |
| 20 | help |
| 21 | Support for dcss block device |
| 22 | |
| 23 | config DASD |
| 24 | def_tristate y |
| 25 | prompt "Support for DASD devices" |
| 26 | depends on CCW && BLOCK |
| 27 | select IOSCHED_DEADLINE |
| 28 | help |
| 29 | Enable this option if you want to access DASDs directly utilizing |
| 30 | S/390s channel subsystem commands. This is necessary for running |
| 31 | natively on a single image or an LPAR. |
| 32 | |
| 33 | config DASD_PROFILE |
| 34 | def_bool y |
| 35 | prompt "Profiling support for dasd devices" |
| 36 | depends on DASD |
| 37 | help |
| 38 | Enable this option if you want to see profiling information |
| 39 | in /proc/dasd/statistics. |
| 40 | |
| 41 | config DASD_ECKD |
| 42 | def_tristate y |
| 43 | prompt "Support for ECKD Disks" |
| 44 | depends on DASD |
| 45 | help |
| 46 | ECKD devices are the most commonly used devices. You should enable |
| 47 | this option unless you are very sure to have no ECKD device. |
| 48 | |
| 49 | config DASD_FBA |
| 50 | def_tristate y |
| 51 | prompt "Support for FBA Disks" |
| 52 | depends on DASD |
| 53 | help |
| 54 | Select this option to be able to access FBA devices. It is safe to |
| 55 | say "Y". |
| 56 | |
| 57 | config DASD_DIAG |
| 58 | def_tristate y |
| 59 | prompt "Support for DIAG access to Disks" |
| 60 | depends on DASD |
| 61 | help |
| 62 | Select this option if you want to use Diagnose250 command to access |
| 63 | Disks under VM. If you are not running under VM or unsure what it is, |
| 64 | say "N". |
| 65 | |
| 66 | config DASD_EER |
| 67 | def_bool y |
| 68 | prompt "Extended error reporting (EER)" |
| 69 | depends on DASD |
| 70 | help |
| 71 | This driver provides a character device interface to the |
| 72 | DASD extended error reporting. This is only needed if you want to |
| 73 | use applications written for the EER facility. |
| 74 | |
| 75 | config SCM_BLOCK |
| 76 | def_tristate m |
| 77 | prompt "Support for Storage Class Memory" |
| 78 | depends on S390 && BLOCK && EADM_SCH && SCM_BUS |
| 79 | help |
| 80 | Block device driver for Storage Class Memory (SCM). This driver |
| 81 | provides a block device interface for each available SCM increment. |
| 82 | |
| 83 | To compile this driver as a module, choose M here: the |
| 84 | module will be called scm_block. |