ixgbe: always enable vlan strip/insert when DCB is enabled

when DCB mode is on, we want the HW VLAN stripping to be always enabled.

Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index a9e091c..f0f7329 100644 (file)
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -2845,7 +2845,11 @@ static void ixgbe_vlan_filter_disable(struct ixgbe_adapter *adapter)
 
        switch (hw->mac.type) {
        case ixgbe_mac_82598EB:
-               vlnctrl &= ~(IXGBE_VLNCTRL_VME | IXGBE_VLNCTRL_VFE);
+               vlnctrl &= ~IXGBE_VLNCTRL_VFE;
+#ifdef CONFIG_IXGBE_DCB
+               if (!(adapter->flags & IXGBE_FLAG_DCB_ENABLED))
+                       vlnctrl &= ~IXGBE_VLNCTRL_VME;
+#endif
                vlnctrl &= ~IXGBE_VLNCTRL_CFIEN;
                IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl);
                break;
@@ -2853,6 +2857,10 @@ static void ixgbe_vlan_filter_disable(struct ixgbe_adapter *adapter)
                vlnctrl &= ~IXGBE_VLNCTRL_VFE;
                vlnctrl &= ~IXGBE_VLNCTRL_CFIEN;
                IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl);
+#ifdef CONFIG_IXGBE_DCB
+               if (adapter->flags & IXGBE_FLAG_DCB_ENABLED)
+                       break;
+#endif
                for (i = 0; i < adapter->num_rx_queues; i++) {
                        j = adapter->rx_ring[i]->reg_idx;
                        vlnctrl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(j));