[S390] zcrypt: Use of Thin Interrupts

When the machine supports AP adapter interrupts polling will be
switched off at module initialization and the driver will work in
interrupt mode.

Signed-off-by: Felix Beck <felix.beck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/drivers/s390/crypto/ap_bus.h b/drivers/s390/crypto/ap_bus.h
index 446378b308fc..a35362241805 100644
--- a/drivers/s390/crypto/ap_bus.h
+++ b/drivers/s390/crypto/ap_bus.h
@@ -5,6 +5,7 @@
  * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
  *            Martin Schwidefsky <schwidefsky@de.ibm.com>
  *            Ralph Wuerthner <rwuerthn@de.ibm.com>
+ *            Felix Beck <felix.beck@de.ibm.com>
  *
  * Adjunct processor bus header file.
  *
@@ -67,7 +68,8 @@ struct ap_queue_status {
         unsigned int queue_empty        : 1;
         unsigned int replies_waiting    : 1;
         unsigned int queue_full         : 1;
-        unsigned int pad1               : 5;
+        unsigned int pad1               : 4;
+        unsigned int int_enabled        : 1;
         unsigned int response_code      : 8;
         unsigned int pad2               : 16;
 };
@@ -78,6 +80,8 @@ struct ap_queue_status {
 #define AP_RESPONSE_DECONFIGURED        0x03
 #define AP_RESPONSE_CHECKSTOPPED        0x04
 #define AP_RESPONSE_BUSY                0x05
+#define AP_RESPONSE_INVALID_ADDRESS     0x06
+#define AP_RESPONSE_OTHERWISE_CHANGED   0x07
 #define AP_RESPONSE_Q_FULL              0x10
 #define AP_RESPONSE_NO_PENDING_REPLY    0x10
 #define AP_RESPONSE_INDEX_TOO_BIG       0x11