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qlcnic: Fix SR-IOV configuration
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>
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@ -397,6 +397,7 @@ static int qlcnic_pci_sriov_disable(struct qlcnic_adapter *adapter)
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{
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struct net_device *netdev = adapter->netdev;
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rtnl_lock();
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if (netif_running(netdev))
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__qlcnic_down(adapter, netdev);
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@ -407,12 +408,15 @@ static int qlcnic_pci_sriov_disable(struct qlcnic_adapter *adapter)
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/* After disabling SRIOV re-init the driver in default mode
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configure opmode based on op_mode of function
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*/
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if (qlcnic_83xx_configure_opmode(adapter))
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if (qlcnic_83xx_configure_opmode(adapter)) {
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rtnl_unlock();
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return -EIO;
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}
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if (netif_running(netdev))
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__qlcnic_up(adapter, netdev);
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rtnl_unlock();
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return 0;
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}
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@ -533,6 +537,7 @@ static int qlcnic_pci_sriov_enable(struct qlcnic_adapter *adapter, int num_vfs)
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return -EIO;
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}
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rtnl_lock();
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if (netif_running(netdev))
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__qlcnic_down(adapter, netdev);
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@ -555,6 +560,7 @@ static int qlcnic_pci_sriov_enable(struct qlcnic_adapter *adapter, int num_vfs)
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__qlcnic_up(adapter, netdev);
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error:
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rtnl_unlock();
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return err;
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}
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