diff options
| -rw-r--r-- | drivers/s390/cio/chsc.c | 22 | ||||
| -rw-r--r-- | drivers/s390/cio/css.h | 1 | ||||
| -rw-r--r-- | drivers/s390/cio/device_fsm.c | 11 |
3 files changed, 24 insertions, 10 deletions
diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c index 9d92540..11900de 100644 --- a/drivers/s390/cio/chsc.c +++ b/drivers/s390/cio/chsc.c @@ -744,20 +744,22 @@ __s390_subchannel_vary_chpid(struct subchannel *sch, __u8 chpid, int on) device_trigger_reprobe(sch); else if (sch->driver && sch->driver->verify) sch->driver->verify(&sch->dev); - } else { - sch->opm &= ~(0x80 >> chp); - sch->lpm &= ~(0x80 >> chp); - if (check_for_io_on_path(sch, chp)) - /* Path verification is done after killing. */ - device_kill_io(sch); - else if (!sch->lpm) { + break; + } + sch->opm &= ~(0x80 >> chp); + sch->lpm &= ~(0x80 >> chp); + if (check_for_io_on_path(sch, chp)) + /* Path verification is done after killing. */ + device_kill_io(sch); + else if (!sch->lpm) { + if (device_trigger_verify(sch) != 0) { if (css_enqueue_subchannel_slow(sch->schid)) { css_clear_subchannel_slow_list(); need_rescan = 1; } - } else if (sch->driver && sch->driver->verify) - sch->driver->verify(&sch->dev); - } + } + } else if (sch->driver && sch->driver->verify) + sch->driver->verify(&sch->dev); break; } spin_unlock_irqrestore(&sch->lock, flags); diff --git a/drivers/s390/cio/css.h b/drivers/s390/cio/css.h index 4c2ff83..da73453 100644 --- a/drivers/s390/cio/css.h +++ b/drivers/s390/cio/css.h @@ -171,6 +171,7 @@ void device_trigger_reprobe(struct subchannel *); /* Helper functions for vary on/off. */ int device_is_online(struct subchannel *); void device_kill_io(struct subchannel *); +int device_trigger_verify(struct subchannel *sch); /* Machine check helper function. */ void device_kill_pending_timer(struct subchannel *); diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c index de3d085..7665000 100644 --- a/drivers/s390/cio/device_fsm.c +++ b/drivers/s390/cio/device_fsm.c @@ -59,6 +59,17 @@ device_set_disconnected(struct subchannel *sch) cdev->private->state = DEV_STATE_DISCONNECTED; } +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. */ |