ixgbe: use known user priority for FCoE when DCB is enabled

Store the user priority for FCoE and use it directly for outgoing
FCoE traffic when DCB is enabled.

Signed-off-by: Yi Zou <yi.zou@intel.com>
Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 9ba506f6ef29..09990ed105f6 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -3958,8 +3958,10 @@ static int __devinit ixgbe_sw_init(struct ixgbe_adapter *adapter)
                 adapter->flags |= IXGBE_FLAG_FCOE_CAPABLE;
                 adapter->flags &= ~IXGBE_FLAG_FCOE_ENABLED;
                 adapter->ring_feature[RING_F_FCOE].indices = 0;
+#ifdef CONFIG_IXGBE_DCB
                 /* Default traffic class to use for FCoE */
                 adapter->fcoe.tc = IXGBE_FCOE_DEFTC;
+#endif
 #endif /* IXGBE_FCOE */
         }
 
@@ -5332,6 +5334,12 @@ static netdev_tx_t ixgbe_xmit_frame(struct sk_buff *skb,
             (skb->protocol == htons(ETH_P_FCOE))) {
                 tx_flags |= IXGBE_TX_FLAGS_FCOE;
 #ifdef IXGBE_FCOE
+#ifdef CONFIG_IXGBE_DCB
+                tx_flags &= ~(IXGBE_TX_FLAGS_VLAN_PRIO_MASK
+                              << IXGBE_TX_FLAGS_VLAN_SHIFT);
+                tx_flags |= ((adapter->fcoe.up << 13)
+                              << IXGBE_TX_FLAGS_VLAN_SHIFT);
+#endif
                 r_idx = smp_processor_id();
                 r_idx &= (adapter->ring_feature[RING_F_FCOE].indices - 1);
                 r_idx += adapter->ring_feature[RING_F_FCOE].mask;