qlcnic: Add VXLAN Rx offload support

This patch adds Rx checksum offload support for VXLAN.
Implements .ndo_{add|del}_vxlan_port netdev ops.
Adapter supports only one VXLAN port, so program adapter with
very first UDP port which VXLAN driver is listening to.

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
Simple merge

diff --cc drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
Simple merge

diff --cc drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
Simple merge

diff --cc drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
Simple merge

diff --cc drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
Simple merge

diff --cc drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h
Simple merge

diff --cc drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
Simple merge

diff --cc drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
Simple merge