ixgbe: fix flags relating to perfect filters to support coexistence

[pandora-kernel.git] / drivers / net / ixgbe / ixgbe_dcb_nl.c

diff --git a/drivers/net/ixgbe/ixgbe_dcb_nl.c b/drivers/net/ixgbe/ixgbe_dcb_nl.c
index 08c7aeb..bd2d752 100644 (file)
--- a/drivers/net/ixgbe/ixgbe_dcb_nl.c
+++ b/drivers/net/ixgbe/ixgbe_dcb_nl.c
@@ -114,11 +114,12 @@ static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state)
        u8 err = 0;
        struct ixgbe_adapter *adapter = netdev_priv(netdev);
 
+       /* verify there is something to do, if not then exit */
+       if (!!state != !(adapter->flags & IXGBE_FLAG_DCB_ENABLED))
+               return err;
+
        if (state > 0) {
                /* Turn on DCB */
-               if (adapter->flags & IXGBE_FLAG_DCB_ENABLED)
-                       goto out;
-
                if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) {
                        e_err(drv, "Enable failed, needs MSI-X\n");
                        err = 1;
@@ -143,9 +144,6 @@ static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state)
                ixgbe_setup_tc(netdev, MAX_TRAFFIC_CLASS);
        } else {
                /* Turn off DCB */
-               if (!(adapter->flags & IXGBE_FLAG_DCB_ENABLED))
-                       goto out;
-
                adapter->hw.fc.requested_mode = adapter->last_lfc_mode;
                adapter->temp_dcb_cfg.pfc_mode_enable = false;
                adapter->dcb_cfg.pfc_mode_enable = false;
@@ -153,7 +151,8 @@ static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state)
                switch (adapter->hw.mac.type) {
                case ixgbe_mac_82599EB:
                case ixgbe_mac_X540:
-                       adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE;
+                       if (!(adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE))
+                               adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE;
                        break;
                default:
                        break;