diff options
Diffstat (limited to 'arch/s390/include/asm/ccwdev.h')
| -rw-r--r-- | arch/s390/include/asm/ccwdev.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/s390/include/asm/ccwdev.h b/arch/s390/include/asm/ccwdev.h index f4bd346a52d3..1c0030f9b890 100644 --- a/arch/s390/include/asm/ccwdev.h +++ b/arch/s390/include/asm/ccwdev.h @@ -91,6 +91,14 @@ struct ccw_device { void (*handler) (struct ccw_device *, unsigned long, struct irb *); }; +/* + * Possible CIO actions triggered by the unit check handler. + */ +enum uc_todo { + UC_TODO_RETRY, + UC_TODO_RETRY_ON_NEW_PATH, + UC_TODO_STOP +}; /** * struct ccw driver - device driver for channel attached devices @@ -107,6 +115,7 @@ struct ccw_device { * @freeze: callback for freezing during hibernation snapshotting * @thaw: undo work done in @freeze * @restore: callback for restoring after hibernation + * @uc_handler: callback for unit check handler * @driver: embedded device driver structure * @name: device driver name */ @@ -124,6 +133,7 @@ struct ccw_driver { int (*freeze)(struct ccw_device *); int (*thaw) (struct ccw_device *); int (*restore)(struct ccw_device *); + enum uc_todo (*uc_handler) (struct ccw_device *, struct irb *); struct device_driver driver; char *name; }; |