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Commit 33c66bd1 authored by John Fastabend's avatar John Fastabend Committed by David S. Miller
Browse files

ixgbe: dcb, do not tag tc_prio_control frames 



The network stack indicate packets should not be DCB
tagged by setting the priority to TC_PRIO_CONTROL. One
usage for this is lldp frames which are not suppossed
to be tagged.

Signed-off-by: default avatarJohn Fastabend <john.r.fastabend@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 7483d9dd

drivers/net/ixgbe/ixgbe_main.c

+2 −1
Original line number Diff line number Diff line
@@ -6075,7 +6075,8 @@ static netdev_tx_t ixgbe_xmit_frame(struct sk_buff *skb, 
		}

		tx_flags <<= IXGBE_TX_FLAGS_VLAN_SHIFT;

		tx_flags |= IXGBE_TX_FLAGS_VLAN;

	} else if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {

	} else if (adapter->flags & IXGBE_FLAG_DCB_ENABLED &&

		   skb->priority != TC_PRIO_CONTROL) {

		tx_flags |= ((skb->queue_mapping & 0x7) << 13);

		tx_flags <<= IXGBE_TX_FLAGS_VLAN_SHIFT;

		tx_flags |= IXGBE_TX_FLAGS_VLAN;