diff options
| author | Cornelia Huck <cornelia.huck@de.ibm.com> | 2006-12-04 15:41:04 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2006-12-04 15:41:04 +0100 |
| commit | d23861ff1a4da1f4a5255eb4582f620191c6e1c0 (patch) | |
| tree | fcf5cd0ce14600f2ace203bc71ae940db7fe6497 /drivers/s390/cio/device_fsm.c | |
| parent | 24cb5b4846ebae5543869b5c596c2650f380df53 (diff) | |
[S390] cio: Retry internal operations after vary off.
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>
Diffstat (limited to 'drivers/s390/cio/device_fsm.c')
| -rw-r--r-- | drivers/s390/cio/device_fsm.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c index 7665000e8dfe..09c7672eb3f3 100644 --- a/drivers/s390/cio/device_fsm.c +++ b/drivers/s390/cio/device_fsm.c @@ -59,6 +59,16 @@ device_set_disconnected(struct subchannel *sch) cdev->private->state = DEV_STATE_DISCONNECTED; } +void device_set_intretry(struct subchannel *sch) +{ + struct ccw_device *cdev; + + cdev = sch->dev.driver_data; + if (!cdev) + return; + cdev->private->flags.intretry = 1; +} + int device_trigger_verify(struct subchannel *sch) { struct ccw_device *cdev; @@ -904,6 +914,12 @@ ccw_device_w4sense(struct ccw_device *cdev, enum dev_event dev_event) * had killed the original request. */ if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC | SCSW_FCTL_HALT_FUNC)) { + /* Retry Basic Sense if requested. */ + if (cdev->private->flags.intretry) { + cdev->private->flags.intretry = 0; + ccw_device_do_sense(cdev, irb); + return; + } cdev->private->flags.dosense = 0; memset(&cdev->private->irb, 0, sizeof(struct irb)); ccw_device_accumulate_irb(cdev, irb); |