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[S390] cio: Introduce ccw_bus_type.shutdown. 

Introduce a shutdown method for the ccw bus that calls the driver
specific shutdown method in struct ccw_driver.
Switch zfcp to the new ccw_driver shutdown method.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Cornelia Huck 2007-10-12 16:11:21 +02:00 committed by Martin Schwidefsky
parent a55360df40
commit 958974fb59
3 changed files with 16 additions and 6 deletions
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10
drivers/s390/cio/device.c
View File

@ -1433,12 +1433,22 @@ ccw_device_remove (struct device *dev)
return 0;
}
static void ccw_device_shutdown(struct device *dev)
{
struct ccw_device *cdev;
cdev = to_ccwdev(dev);
if (cdev->drv && cdev->drv->shutdown)
cdev->drv->shutdown(cdev);
}
struct bus_type ccw_bus_type = {
.name = "ccw",
.match = ccw_bus_match,
.uevent = ccw_uevent,
.probe = ccw_device_probe,
.remove = ccw_device_remove,
.shutdown = ccw_device_shutdown,
};
/**

8
drivers/s390/scsi/zfcp_ccw.c
View File

@ -28,7 +28,7 @@ static void zfcp_ccw_remove(struct ccw_device *);
static int zfcp_ccw_set_online(struct ccw_device *);
static int zfcp_ccw_set_offline(struct ccw_device *);
static int zfcp_ccw_notify(struct ccw_device *, int);
static void zfcp_ccw_shutdown(struct device *);
static void zfcp_ccw_shutdown(struct ccw_device *);
static struct ccw_device_id zfcp_ccw_device_id[] = {
{CCW_DEVICE_DEVTYPE(ZFCP_CONTROL_UNIT_TYPE,
@ -51,9 +51,7 @@ static struct ccw_driver zfcp_ccw_driver = {
.set_online = zfcp_ccw_set_online,
.set_offline = zfcp_ccw_set_offline,
.notify = zfcp_ccw_notify,
.driver = {
.shutdown = zfcp_ccw_shutdown,
},
};
MODULE_DEVICE_TABLE(ccw, zfcp_ccw_device_id);
@ -277,12 +275,12 @@ zfcp_ccw_register(void)
* Makes sure that QDIO queues are down when the system gets stopped.
*/
static void
zfcp_ccw_shutdown(struct device *dev)
zfcp_ccw_shutdown(struct ccw_device *cdev)
{
struct zfcp_adapter *adapter;
down(&zfcp_data.config_sema);
adapter = dev_get_drvdata(dev);
adapter = dev_get_drvdata(&cdev->dev);
zfcp_erp_adapter_shutdown(adapter, 0);
zfcp_erp_wait(adapter);
up(&zfcp_data.config_sema);

2
include/asm-s390/ccwdev.h
View File

@ -102,6 +102,7 @@ struct ccw_device {
* @set_online: called when setting device online
* @set_offline: called when setting device offline
* @notify: notify driver of device state changes
* @shutdown: called at device shutdown
* @driver: embedded device driver structure
* @name: device driver name
*/
@ -113,6 +114,7 @@ struct ccw_driver {
int (*set_online) (struct ccw_device *);
int (*set_offline) (struct ccw_device *);
int (*notify) (struct ccw_device *, int);
void (*shutdown) (struct ccw_device *);
struct device_driver driver;
char *name;
};