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qlcnic: Fix SR-IOV configuration

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o Interface needs to be brought down and up while configuring SR-IOV.
  Protect interface up/down using rtnl_lock()/rtnl_unlock()

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Manish Chopra 2013-10-01 02:23:48 -04:00 committed by David S. Miller
parent 7167cf0e8c
commit 1ed98ed55d
1 changed files with 7 additions and 1 deletions
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8
drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
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@ -397,6 +397,7 @@ static int qlcnic_pci_sriov_disable(struct qlcnic_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
rtnl_lock();
if (netif_running(netdev))
__qlcnic_down(adapter, netdev);
@ -407,12 +408,15 @@ static int qlcnic_pci_sriov_disable(struct qlcnic_adapter *adapter)
/* After disabling SRIOV re-init the driver in default mode
configure opmode based on op_mode of function
*/
if (qlcnic_83xx_configure_opmode(adapter))
if (qlcnic_83xx_configure_opmode(adapter)) {
rtnl_unlock();
return -EIO;
}
if (netif_running(netdev))
__qlcnic_up(adapter, netdev);
rtnl_unlock();
return 0;
}
@ -533,6 +537,7 @@ static int qlcnic_pci_sriov_enable(struct qlcnic_adapter *adapter, int num_vfs)
return -EIO;
}
rtnl_lock();
if (netif_running(netdev))
__qlcnic_down(adapter, netdev);
@ -555,6 +560,7 @@ static int qlcnic_pci_sriov_enable(struct qlcnic_adapter *adapter, int num_vfs)
__qlcnic_up(adapter, netdev);
error:
rtnl_unlock();
return err;
}