*
*/
-#include <linux/config.h>
#include <linux/kmod.h>
#include <linux/init.h>
#include <linux/interrupt.h>
spin_lock_init(&device->mem_lock);
spin_lock_init(&device->request_queue_lock);
atomic_set (&device->tasklet_scheduled, 0);
- tasklet_init(&device->tasklet,
+ tasklet_init(&device->tasklet,
(void (*)(unsigned long)) dasd_tasklet,
(unsigned long) device);
INIT_LIST_HEAD(&device->ccw_queue);
int rc;
/*
- * As long as the device is not in state DASD_STATE_NEW we want to
+ * As long as the device is not in state DASD_STATE_NEW we want to
* keep the reference count > 0.
*/
dasd_get_device(device);
device->target >= DASD_STATE_READY)
rc = dasd_state_basic_to_ready(device);
+ if (!rc &&
+ device->state == DASD_STATE_UNFMT &&
+ device->target > DASD_STATE_UNFMT)
+ rc = -EPERM;
+
if (!rc &&
device->state == DASD_STATE_READY &&
device->target >= DASD_STATE_ONLINE)
if (device->state == DASD_STATE_ONLINE &&
device->target <= DASD_STATE_READY)
dasd_state_online_to_ready(device);
-
+
if (device->state == DASD_STATE_READY &&
device->target <= DASD_STATE_BASIC)
dasd_state_ready_to_basic(device);
if (device->state == DASD_STATE_BASIC &&
device->target <= DASD_STATE_KNOWN)
dasd_state_basic_to_known(device);
-
+
if (device->state == DASD_STATE_KNOWN &&
device->target <= DASD_STATE_NEW)
dasd_state_known_to_new(device);
((irb->scsw.cstat << 8) | irb->scsw.dstat), cqr);
/* Find out the appropriate era_action. */
- if (irb->scsw.fctl & SCSW_FCTL_HALT_FUNC)
+ if (irb->scsw.fctl & SCSW_FCTL_HALT_FUNC)
era = dasd_era_fatal;
else if (irb->scsw.dstat == (DEV_STAT_CHN_END | DEV_STAT_DEV_END) &&
irb->scsw.cstat == 0 &&
era = dasd_era_fatal; /* don't recover this request */
else if (irb->esw.esw0.erw.cons)
era = device->discipline->examine_error(cqr, irb);
- else
+ else
era = dasd_era_recover;
DBF_DEV_EVENT(DBF_DEBUG, device, "era_code %d", era);
}
/*
- * Remove requests from the ccw queue.
+ * Remove requests from the ccw queue.
*/
static void
dasd_flush_ccw_queue(struct dasd_device * device, int all)
wait_queue_head_t wait_q;
struct dasd_device *device;
int rc;
-
+
device = cqr->device;
spin_lock_irq(get_ccwdev_lock(device->cdev));
-
+
init_waitqueue_head (&wait_q);
cqr->callback = dasd_wakeup_cb;
cqr->callback_data = (void *) &wait_q;
cqr->status = DASD_CQR_QUEUED;
list_add_tail(&cqr->list, &device->ccw_queue);
-
+
/* let the bh start the request to keep them in order */
dasd_schedule_bh(device);
-
+
spin_unlock_irq(get_ccwdev_lock(device->cdev));
wait_event(wait_q, _wait_for_wakeup(cqr));
-
+
/* Request status is either done or failed. */
rc = (cqr->status == DASD_CQR_FAILED) ? -EIO : 0;
return rc;
wait_queue_head_t wait_q;
struct dasd_device *device;
int rc;
-
+
device = cqr->device;
spin_lock_irq(get_ccwdev_lock(device->cdev));
rc = _dasd_term_running_cqr(device);
spin_unlock_irq(get_ccwdev_lock(device->cdev));
return rc;
}
-
+
init_waitqueue_head (&wait_q);
cqr->callback = dasd_wakeup_cb;
cqr->callback_data = (void *) &wait_q;
cqr->status = DASD_CQR_QUEUED;
list_add(&cqr->list, &device->ccw_queue);
-
+
/* let the bh start the request to keep them in order */
dasd_schedule_bh(device);
-
+
spin_unlock_irq(get_ccwdev_lock(device->cdev));
wait_event(wait_q, _wait_for_wakeup(cqr));
-
+
/* Request status is either done or failed. */
rc = (cqr->status == DASD_CQR_FAILED) ? -EIO : 0;
return rc;
if (!device->request_queue)
return;
-
+
spin_lock_irq(&device->request_queue_lock);
while (!list_empty(&device->request_queue->queue_head)) {
req = elv_next_request(device->request_queue);
if (req == NULL)
break;
- dasd_end_request(req, 0);
blkdev_dequeue_request(req);
+ dasd_end_request(req, 0);
}
spin_unlock_irq(&device->request_queue_lock);
}
}
dasd_gendisk_exit();
dasd_devmap_exit();
- devfs_remove("dasd");
if (dasd_debug_area != NULL) {
debug_unregister(dasd_debug_area);
dasd_debug_area = NULL;
{
int ret;
+ ret = ccw_device_set_options(cdev, CCWDEV_DO_PATHGROUP);
+ if (ret) {
+ printk(KERN_WARNING
+ "dasd_generic_probe: could not set ccw-device options "
+ "for %s\n", cdev->dev.bus_id);
+ return ret;
+ }
ret = dasd_add_sysfs_files(cdev);
if (ret) {
printk(KERN_WARNING
"dasd_generic_probe: could not add sysfs entries "
"for %s\n", cdev->dev.bus_id);
- } else {
- cdev->handler = &dasd_int_handler;
+ return ret;
}
+ cdev->handler = &dasd_int_handler;
+ /*
+ * Automatically online either all dasd devices (dasd_autodetect)
+ * or all devices specified with dasd= parameters during
+ * initial probe.
+ */
+ if ((dasd_get_feature(cdev, DASD_FEATURE_INITIAL_ONLINE) > 0 ) ||
+ (dasd_autodetect && dasd_busid_known(cdev->dev.bus_id) != 0))
+ ret = ccw_device_set_online(cdev);
+ if (ret)
+ printk(KERN_WARNING
+ "dasd_generic_probe: could not initially online "
+ "ccw-device %s\n", cdev->dev.bus_id);
return ret;
}
struct dasd_device *device;
int rc;
+ /* first online clears initial online feature flag */
+ dasd_set_feature(cdev, DASD_FEATURE_INITIAL_ONLINE, 0);
device = dasd_create_device(cdev);
if (IS_ERR(device))
return PTR_ERR(device);
return ret;
}
-/*
- * Automatically online either all dasd devices (dasd_autodetect) or
- * all devices specified with dasd= parameters.
- */
-static int
-__dasd_auto_online(struct device *dev, void *data)
-{
- struct ccw_device *cdev;
-
- cdev = to_ccwdev(dev);
- if (dasd_autodetect || dasd_busid_known(cdev->dev.bus_id) == 0)
- ccw_device_set_online(cdev);
- return 0;
-}
-
-void
-dasd_generic_auto_online (struct ccw_driver *dasd_discipline_driver)
-{
- struct device_driver *drv;
-
- drv = get_driver(&dasd_discipline_driver->driver);
- driver_for_each_device(drv, NULL, NULL, __dasd_auto_online);
- put_driver(drv);
-}
-
static int __init
dasd_init(void)
dasd_diag_discipline_pointer = NULL;
- rc = devfs_mk_dir("dasd");
- if (rc)
- goto failed;
rc = dasd_devmap_init();
if (rc)
goto failed;
EXPORT_SYMBOL_GPL(dasd_generic_notify);
EXPORT_SYMBOL_GPL(dasd_generic_set_online);
EXPORT_SYMBOL_GPL(dasd_generic_set_offline);
-EXPORT_SYMBOL_GPL(dasd_generic_auto_online);
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only. This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-indent-level: 4
- * c-brace-imaginary-offset: 0
- * c-brace-offset: -4
- * c-argdecl-indent: 4
- * c-label-offset: -4
- * c-continued-statement-offset: 4
- * c-continued-brace-offset: 0
- * indent-tabs-mode: 1
- * tab-width: 8
- * End:
- */
git.openpandora.org / pandora-kernel.git / blobdiff