[S390] cio: Allow adapter interrupt handlers per isc.

Enhance the adapter interruption API so that device drivers can
register a handler for a specific interruption subclass. This
will allow different device drivers to move to differently
prioritized subclasses in order to avoid congestion.

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>

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/s390/cio/qdio.c b/drivers/s390/cio/qdio.c
index f9be265e7e8f..8476f8c35c2d 100644
--- a/drivers/s390/cio/qdio.c
+++ b/drivers/s390/cio/qdio.c
@@ -3713,7 +3713,8 @@ tiqdio_register_thinints(void)
         char dbf_text[20];
 
         tiqdio_ind =
-                s390_register_adapter_interrupt(&tiqdio_thinint_handler, NULL);
+                s390_register_adapter_interrupt(&tiqdio_thinint_handler, NULL,
+                                                TIQDIO_THININT_ISC);
         if (IS_ERR(tiqdio_ind)) {
                 sprintf(dbf_text, "regthn%lx", PTR_ERR(tiqdio_ind));
                 QDIO_DBF_TEXT0(0,setup,dbf_text);
@@ -3729,7 +3730,8 @@ static void
 tiqdio_unregister_thinints(void)
 {
         if (tiqdio_ind)
-                s390_unregister_adapter_interrupt(tiqdio_ind);
+                s390_unregister_adapter_interrupt(tiqdio_ind,
+                                                  TIQDIO_THININT_ISC);
 }
 
 static int