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| author | Cornelia Huck <cornelia.huck@de.ibm.com> | 2008-07-14 11:59:05 +0400 |
|---|---|---|
| committer | Heiko Carstens <heiko.carstens@de.ibm.com> | 2008-07-14 12:02:12 +0400 |
| commit | 9d92a7e1b0d095c8be96ce5e592c6c5541684631 (patch) | |
| tree | 22cfca810de07a7d7f87f17a89de0ae10d462038 /arch/s390 | |
| parent | 683c5418e6ac9f40f925dab6f547a5b0a4ad43c6 (diff) | |
| download | linux-9d92a7e1b0d095c8be96ce5e592c6c5541684631.tar.xz | |
[S390] cio: Add chsc subchannel driver.
This patch adds a driver for subchannels of type chsc.
A device /dev/chsc is created which may be used to issue ioctls to:
- obtain information about the machine's I/O configuration
- dynamically change the machine's I/O configuration via
asynchronous chsc commands
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/Kconfig | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index a79820c3ab08..6d0d31651f05 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -345,6 +345,22 @@ config QDIO_DEBUG If unsure, say N. +config CHSC_SCH + tristate "Support for CHSC subchannels" + help + This driver allows usage of CHSC subchannels. A CHSC subchannel + is usually present on LPAR only. + The driver creates a device /dev/chsc, which may be used to + obtain I/O configuration information about the machine and + to issue asynchronous chsc commands (DANGEROUS). + You will usually only want to use this interface on a special + LPAR designated for system management. + + To compile this driver as a module, choose M here: the + module will be called chsc_sch. + + If unsure, say N. + comment "Misc" config IPL |