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Diffstat (limited to 'drivers/s390/block/dasd_int.h')
-rw-r--r--drivers/s390/block/dasd_int.h13
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h
index f97ceb79507..fd63b2f2bda 100644
--- a/drivers/s390/block/dasd_int.h
+++ b/drivers/s390/block/dasd_int.h
@@ -4,8 +4,7 @@
* Horst Hummel <Horst.Hummel@de.ibm.com>
* Martin Schwidefsky <schwidefsky@de.ibm.com>
* Bugreports.to..: <Linux390@de.ibm.com>
- * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000
- *
+ * Copyright IBM Corp. 1999, 2009
*/
#ifndef DASD_INT_H
@@ -295,6 +294,10 @@ struct dasd_discipline {
int (*fill_geometry) (struct dasd_block *, struct hd_geometry *);
int (*fill_info) (struct dasd_device *, struct dasd_information2_t *);
int (*ioctl) (struct dasd_block *, unsigned int, void __user *);
+
+ /* suspend/resume functions */
+ int (*freeze) (struct dasd_device *);
+ int (*restore) (struct dasd_device *);
};
extern struct dasd_discipline *dasd_diag_discipline_pointer;
@@ -367,6 +370,7 @@ struct dasd_device {
atomic_t tasklet_scheduled;
struct tasklet_struct tasklet;
struct work_struct kick_work;
+ struct work_struct restore_device;
struct timer_list timer;
debug_info_t *debug_area;
@@ -410,6 +414,8 @@ struct dasd_block {
#define DASD_STOPPED_PENDING 4 /* long busy */
#define DASD_STOPPED_DC_WAIT 8 /* disconnected, wait */
#define DASD_STOPPED_SU 16 /* summary unit check handling */
+#define DASD_STOPPED_PM 32 /* pm state transition */
+#define DASD_UNRESUMED_PM 64 /* pm resume failed state */
/* per device flags */
#define DASD_FLAG_OFFLINE 3 /* device is in offline processing */
@@ -556,6 +562,7 @@ void dasd_free_block(struct dasd_block *);
void dasd_enable_device(struct dasd_device *);
void dasd_set_target_state(struct dasd_device *, int);
void dasd_kick_device(struct dasd_device *);
+void dasd_restore_device(struct dasd_device *);
void dasd_add_request_head(struct dasd_ccw_req *);
void dasd_add_request_tail(struct dasd_ccw_req *);
@@ -578,6 +585,8 @@ int dasd_generic_set_online(struct ccw_device *, struct dasd_discipline *);
int dasd_generic_set_offline (struct ccw_device *cdev);
int dasd_generic_notify(struct ccw_device *, int);
void dasd_generic_handle_state_change(struct dasd_device *);
+int dasd_generic_pm_freeze(struct ccw_device *);
+int dasd_generic_restore_device(struct ccw_device *);
int dasd_generic_read_dev_chars(struct dasd_device *, char *, void *, int);
char *dasd_get_sense(struct irb *);