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authorSebastian Ott <sebott@linux.vnet.ibm.com>2012-08-28 16:48:16 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2012-09-26 15:45:00 +0200
commiteadb86ab80545d04a0ee576e92ba4447621cdb02 (patch)
treefa9903cd696ea67d244dab55a1fdb71658208cfa /arch
parent40ff4cc06697e8ba3f8ce93b0592ddbcf70cd444 (diff)
downloadlinux-eadb86ab80545d04a0ee576e92ba4447621cdb02.tar.bz2
s390/cio: add eadm subchannel driver
This driver allows usage of EADM subchannels. EADM subchannels act as a communication vehicle for SCM increments. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/s390/Kconfig11
-rw-r--r--arch/s390/include/asm/isc.h1
2 files changed, 12 insertions, 0 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 3781db22f427..3f42161d6bc6 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -440,6 +440,17 @@ config SCM_BUS
help
Bus driver for Storage Class Memory.
+config EADM_SCH
+ def_tristate m
+ prompt "Support for EADM subchannels"
+ depends on SCM_BUS
+ help
+ This driver allows usage of EADM subchannels. EADM subchannels act
+ as a communication vehicle for SCM increments.
+
+ To compile this driver as a module, choose M here: the
+ module will be called eadm_sch.
+
endmenu
menu "Dump support"
diff --git a/arch/s390/include/asm/isc.h b/arch/s390/include/asm/isc.h
index 1420a1115948..5ae606456b0a 100644
--- a/arch/s390/include/asm/isc.h
+++ b/arch/s390/include/asm/isc.h
@@ -14,6 +14,7 @@
/* Regular I/O interrupts. */
#define IO_SCH_ISC 3 /* regular I/O subchannels */
#define CONSOLE_ISC 1 /* console I/O subchannel */
+#define EADM_SCH_ISC 4 /* EADM subchannels */
#define CHSC_SCH_ISC 7 /* CHSC subchannels */
/* Adapter interrupts. */
#define QDIO_AIRQ_ISC IO_SCH_ISC /* I/O subchannel in qdio mode */