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authorManish Chopra <manish.chopra@qlogic.com>2013-10-01 10:23:48 +0400
committerDavid S. Miller <davem@davemloft.net>2013-10-01 20:34:59 +0400
commit1ed98ed55d6bf47d5a21b1e2db35ceb8b9a4c91c (patch)
treeb6d074c041165a1f8df097c2417d69ee1fdc8f01 /drivers
parent7167cf0e8cd10287b7912b9ffcccd9616f382922 (diff)
downloadlinux-1ed98ed55d6bf47d5a21b1e2db35ceb8b9a4c91c.tar.xz
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
index 330d9a8774ad..686f460b1502 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
@@ -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;
}