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be2net: Issue shutdown event to ocrdma driver 

In the shutdown path, when be2net calls pci_disable_msix(), it
complains (BUG_ON) that irqs requested by ocrdma driver are still in
use.  This patch fixes this problem by issuing shutdown event to
ocrdma from be2net shutdown path.  As part of shutdown event
processing, ocrdma driver will free up all the resources and free
irqs.  Once this completes be2net completes pci_disable_msix
successfully.

Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com>
Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
This commit is contained in:
Devesh Sharma 2014-06-10 19:32:15 +05:30 committed by Roland Dreier
parent 4808b184fd
commit d114f99a29
4 changed files with 20 additions and 3 deletions
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1
drivers/net/ethernet/emulex/benet/be.h
View File

@ -890,5 +890,6 @@ void be_roce_dev_remove(struct be_adapter *);
*/
void be_roce_dev_open(struct be_adapter *);
void be_roce_dev_close(struct be_adapter *);
void be_roce_dev_shutdown(struct be_adapter *);
#endif /* BE_H */

1
drivers/net/ethernet/emulex/benet/be_main.c
View File

@ -4958,6 +4958,7 @@ static void be_shutdown(struct pci_dev *pdev)
if (!adapter)
return;
be_roce_dev_shutdown(adapter);
cancel_delayed_work_sync(&adapter->work);
cancel_delayed_work_sync(&adapter->func_recovery_work);

18
drivers/net/ethernet/emulex/benet/be_roce.c
View File

@ -120,7 +120,8 @@ static void _be_roce_dev_open(struct be_adapter *adapter)
{
if (ocrdma_drv && adapter->ocrdma_dev &&
ocrdma_drv->state_change_handler)
ocrdma_drv->state_change_handler(adapter->ocrdma_dev, 0);
ocrdma_drv->state_change_handler(adapter->ocrdma_dev,
BE_DEV_UP);
}
void be_roce_dev_open(struct be_adapter *adapter)
@ -136,7 +137,8 @@ static void _be_roce_dev_close(struct be_adapter *adapter)
{
if (ocrdma_drv && adapter->ocrdma_dev &&
ocrdma_drv->state_change_handler)
ocrdma_drv->state_change_handler(adapter->ocrdma_dev, 1);
ocrdma_drv->state_change_handler(adapter->ocrdma_dev,
BE_DEV_DOWN);
}
void be_roce_dev_close(struct be_adapter *adapter)
@ -148,6 +150,18 @@ void be_roce_dev_close(struct be_adapter *adapter)
}
}
void be_roce_dev_shutdown(struct be_adapter *adapter)
{
if (be_roce_supported(adapter)) {
mutex_lock(&be_adapter_list_lock);
if (ocrdma_drv && adapter->ocrdma_dev &&
ocrdma_drv->state_change_handler)
ocrdma_drv->state_change_handler(adapter->ocrdma_dev,
BE_DEV_SHUTDOWN);
mutex_unlock(&be_adapter_list_lock);
}
}
int be_roce_register_driver(struct ocrdma_driver *drv)
{
struct be_adapter *dev;

3
drivers/net/ethernet/emulex/benet/be_roce.h
View File

@ -62,7 +62,8 @@ struct ocrdma_driver {
enum {
BE_DEV_UP = 0,
BE_DEV_DOWN = 1
BE_DEV_DOWN = 1,
BE_DEV_SHUTDOWN = 2
};
/* APIs for RoCE driver to register callback handlers,