s390: add scm notification
Detect an scm change notification in store event information.
Update affected scm devices and notify their drivers.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c
index 1218653..4d51a7c 100644
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -398,6 +398,20 @@
}
}
+static void chsc_process_sei_scm_change(struct chsc_sei_area *sei_area)
+{
+ int ret;
+
+ CIO_CRW_EVENT(4, "chsc: scm change notification\n");
+ if (sei_area->rs != 7)
+ return;
+
+ ret = scm_update_information();
+ if (ret)
+ CIO_CRW_EVENT(0, "chsc: updating change notification"
+ " failed (rc=%d).\n", ret);
+}
+
static void chsc_process_sei(struct chsc_sei_area *sei_area)
{
/* Check if we might have lost some information. */
@@ -419,6 +433,9 @@
case 8: /* channel-path-configuration notification */
chsc_process_sei_chp_config(sei_area);
break;
+ case 12: /* scm change notification */
+ chsc_process_sei_scm_change(sei_area);
+ break;
default: /* other stuff */
CIO_CRW_EVENT(4, "chsc: unhandled sei content code %d\n",
sei_area->cc);
