ixgbe: remove residual code left over from earlier combining of TXDCTL

Missed some code that was left floating around in the DCB configuration
for the TXDCTL register.  As a result the register was being messed with in
two different spots when we only needed to do the change once.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index cbb3570..dd73ebc 100644 (file)
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -3328,8 +3328,6 @@ static void ixgbe_configure_dcb(struct ixgbe_adapter *adapter)
 {
        struct ixgbe_hw *hw = &adapter->hw;
        int max_frame = adapter->netdev->mtu + ETH_HLEN + ETH_FCS_LEN;
-       u32 txdctl;
-       int i, j;
 
        if (!(adapter->flags & IXGBE_FLAG_DCB_ENABLED)) {
                if (hw->mac.type == ixgbe_mac_82598EB)
@@ -3350,20 +3348,13 @@ static void ixgbe_configure_dcb(struct ixgbe_adapter *adapter)
        ixgbe_dcb_calculate_tc_credits(hw, &adapter->dcb_cfg, max_frame,
                                        DCB_RX_CONFIG);
 
-       /* reconfigure the hardware */
-       ixgbe_dcb_hw_config(&adapter->hw, &adapter->dcb_cfg);
-
-       for (i = 0; i < adapter->num_tx_queues; i++) {
-               j = adapter->tx_ring[i]->reg_idx;
-               txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(j));
-               /* PThresh workaround for Tx hang with DFP enabled. */
-               txdctl |= 32;
-               IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(j), txdctl);
-       }
        /* Enable VLAN tag insert/strip */
        adapter->netdev->features |= NETIF_F_HW_VLAN_RX;
 
        hw->mac.ops.set_vfta(&adapter->hw, 0, 0, true);
+
+       /* reconfigure the hardware */
+       ixgbe_dcb_hw_config(hw, &adapter->dcb_cfg);
 }
 
 #endif