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[S390] cio: Retry internal operations after vary off.

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If I/O was running on a just varied off chpid, it will be terminated.
If this was a common I/O layer internal I/O, it needs to be retried.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Cornelia Huck
2006-12-04 15:41:04 +01:00
committed by Martin Schwidefsky
parent 24cb5b4846
commit d23861ff1a
7 changed files with 90 additions and 11 deletions
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2
drivers/s390/cio/css.h
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@@ -94,6 +94,7 @@ struct ccw_device_private {
unsigned int donotify:1; /* call notify function */
unsigned int recog_done:1; /* dev. recog. complete */
unsigned int fake_irb:1; /* deliver faked irb */
unsigned int intretry:1; /* retry internal operation */
} __attribute__((packed)) flags;
unsigned long intparm; /* user interruption parameter */
struct qdio_irq *qdio_data;
@@ -171,6 +172,7 @@ void device_trigger_reprobe(struct subchannel *);
/* Helper functions for vary on/off. */
int device_is_online(struct subchannel *);
void device_kill_io(struct subchannel *);
void device_set_intretry(struct subchannel *sch);
int device_trigger_verify(struct subchannel *sch);
/* Machine check helper function. */