aboutsummaryrefslogtreecommitdiff
path: root/arch/s390
diff options
context:
space:
mode:
authorCornelia Huck <cornelia.huck@de.ibm.com>2008-07-14 09:59:05 +0200
committerHeiko Carstens <heiko.carstens@de.ibm.com>2008-07-14 10:02:12 +0200
commit9d92a7e1b0d095c8be96ce5e592c6c5541684631 (patch)
tree22cfca810de07a7d7f87f17a89de0ae10d462038 /arch/s390
parent683c5418e6ac9f40f925dab6f547a5b0a4ad43c6 (diff)
[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/Kconfig16
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index a79820c3ab0..6d0d31651f0 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