s390/dasd: add support for control unit initiated reconfiguration
Add support for Control Unit Initiated Reconfiguration (CUIR) to
Linux, a storage server interface to reconcile concurrent hardware
changes between storage and host.
Reviewed-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h
index c201701..8b5d410 100644
--- a/drivers/s390/block/dasd_int.h
+++ b/drivers/s390/block/dasd_int.h
@@ -357,6 +357,7 @@
int (*get_uid) (struct dasd_device *, struct dasd_uid *);
void (*kick_validate) (struct dasd_device *);
+ int (*check_attention)(struct dasd_device *, __u8);
};
extern struct dasd_discipline *dasd_diag_discipline_pointer;
@@ -382,6 +383,10 @@
__u8 tbvpm;
__u8 ppm;
__u8 npm;
+ /* paths that are not used because of a special condition */
+ __u8 cablepm; /* miss-cabled */
+ __u8 hpfpm; /* the HPF requirements of the other paths are not met */
+ __u8 cuirpm; /* CUIR varied offline */
};
struct dasd_profile_info {
@@ -501,7 +506,10 @@
struct dasd_profile profile;
};
-
+struct dasd_attention_data {
+ struct dasd_device *device;
+ __u8 lpum;
+};
/* reasons why device (ccw_device_start) was stopped */
#define DASD_STOPPED_NOT_ACC 1 /* not accessible */