diff options
Diffstat (limited to 'drivers/s390/cio/device_fsm.c')
| -rw-r--r-- | drivers/s390/cio/device_fsm.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c index de3d0857db9f..09c7672eb3f3 100644 --- a/drivers/s390/cio/device_fsm.c +++ b/drivers/s390/cio/device_fsm.c @@ -59,6 +59,27 @@ 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; + + cdev = sch->dev.driver_data; + if (!cdev || !cdev->online) + return -EINVAL; + dev_fsm_event(cdev, DEV_EVENT_VERIFY); + return 0; +} + /* * Timeout function. It just triggers a DEV_EVENT_TIMEOUT. */ @@ -893,6 +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); |