diff options
Diffstat (limited to 'drivers/s390/cio/device_fsm.c')
| -rw-r--r-- | drivers/s390/cio/device_fsm.c | 51 |
1 files changed, 31 insertions, 20 deletions
diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c index a845695ac31..0bc902b3cd8 100644 --- a/drivers/s390/cio/device_fsm.c +++ b/drivers/s390/cio/device_fsm.c @@ -1,8 +1,7 @@ /* - * drivers/s390/cio/device_fsm.c * finite state machine for device handling * - * Copyright IBM Corp. 2002,2008 + * Copyright IBM Corp. 2002, 2008 * Author(s): Cornelia Huck (cornelia.huck@de.ibm.com) * Martin Schwidefsky (schwidefsky@de.ibm.com) */ @@ -48,7 +47,7 @@ static void ccw_timeout_log(struct ccw_device *cdev) cc = stsch_err(sch->schid, &schib); printk(KERN_WARNING "cio: ccw device timeout occurred at %llx, " - "device information:\n", get_clock()); + "device information:\n", get_tod_clock()); printk(KERN_WARNING "cio: orb:\n"); print_hex_dump(KERN_WARNING, "cio: ", DUMP_PREFIX_NONE, 16, 1, orb, sizeof(*orb), 0); @@ -318,7 +317,7 @@ ccw_device_sense_id_done(struct ccw_device *cdev, int err) /** * ccw_device_notify() - inform the device's driver about an event - * @cdev: device for which an event occured + * @cdev: device for which an event occurred * @event: event that occurred * * Returns: @@ -408,9 +407,10 @@ ccw_device_done(struct ccw_device *cdev, int state) CIO_MSG_EVENT(0, "Disconnected device %04x on subchannel " "%04x\n", cdev->private->dev_id.devno, sch->schid.sch_no); - if (ccw_device_notify(cdev, CIO_NO_PATH) != NOTIFY_OK) + if (ccw_device_notify(cdev, CIO_NO_PATH) != NOTIFY_OK) { + cdev->private->state = DEV_STATE_NOT_OPER; ccw_device_sched_todo(cdev, CDEV_TODO_UNREG); - else + } else ccw_device_set_disconnected(cdev); cdev->private->flags.donotify = 0; break; @@ -495,8 +495,26 @@ static void ccw_device_reset_path_events(struct ccw_device *cdev) cdev->private->pgid_reset_mask = 0; } -void -ccw_device_verify_done(struct ccw_device *cdev, int err) +static void create_fake_irb(struct irb *irb, int type) +{ + memset(irb, 0, sizeof(*irb)); + if (type == FAKE_CMD_IRB) { + struct cmd_scsw *scsw = &irb->scsw.cmd; + scsw->cc = 1; + scsw->fctl = SCSW_FCTL_START_FUNC; + scsw->actl = SCSW_ACTL_START_PEND; + scsw->stctl = SCSW_STCTL_STATUS_PEND; + } else if (type == FAKE_TM_IRB) { + struct tm_scsw *scsw = &irb->scsw.tm; + scsw->x = 1; + scsw->cc = 1; + scsw->fctl = SCSW_FCTL_START_FUNC; + scsw->actl = SCSW_ACTL_START_PEND; + scsw->stctl = SCSW_STCTL_STATUS_PEND; + } +} + +void ccw_device_verify_done(struct ccw_device *cdev, int err) { struct subchannel *sch; @@ -519,12 +537,8 @@ callback: ccw_device_done(cdev, DEV_STATE_ONLINE); /* Deliver fake irb to device driver, if needed. */ if (cdev->private->flags.fake_irb) { - memset(&cdev->private->irb, 0, sizeof(struct irb)); - cdev->private->irb.scsw.cmd.cc = 1; - cdev->private->irb.scsw.cmd.fctl = SCSW_FCTL_START_FUNC; - cdev->private->irb.scsw.cmd.actl = SCSW_ACTL_START_PEND; - cdev->private->irb.scsw.cmd.stctl = - SCSW_STCTL_STATUS_PEND; + create_fake_irb(&cdev->private->irb, + cdev->private->flags.fake_irb); cdev->private->flags.fake_irb = 0; if (cdev->handler) cdev->handler(cdev, cdev->private->intparm, @@ -688,7 +702,7 @@ ccw_device_online_verify(struct ccw_device *cdev, enum dev_event dev_event) (scsw_stctl(&cdev->private->irb.scsw) & SCSW_STCTL_STATUS_PEND)) { /* * No final status yet or final status not yet delivered - * to the device driver. Can't do path verfication now, + * to the device driver. Can't do path verification now, * delay until final status was delivered. */ cdev->private->flags.doverify = 1; @@ -725,7 +739,7 @@ ccw_device_irq(struct ccw_device *cdev, enum dev_event dev_event) struct irb *irb; int is_cmd; - irb = (struct irb *)&S390_lowcore.irb; + irb = &__get_cpu_var(cio_irb); is_cmd = !scsw_is_tm(&irb->scsw); /* Check for unsolicited interrupt. */ if (!scsw_is_solicited(&irb->scsw)) { @@ -791,7 +805,7 @@ ccw_device_w4sense(struct ccw_device *cdev, enum dev_event dev_event) { struct irb *irb; - irb = (struct irb *)&S390_lowcore.irb; + irb = &__get_cpu_var(cio_irb); /* Check for unsolicited interrupt. */ if (scsw_stctl(&irb->scsw) == (SCSW_STCTL_STATUS_PEND | SCSW_STCTL_ALERT_STATUS)) { @@ -840,9 +854,6 @@ call_handler: static void ccw_device_killing_irq(struct ccw_device *cdev, enum dev_event dev_event) { - struct subchannel *sch; - - sch = to_subchannel(cdev->dev.parent); ccw_device_set_timeout(cdev, 0); /* Start delayed path verification. */ ccw_device_online_verify(cdev, 0); |