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>

1 files changed, 11 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"