net/i40e: handle QinQ strip

Qinq strip is not supported by i40e. When user tries to turn on
QinQ strip, the driver gives unsupported return value and log.

Signed-off-by: Tao Zhu <taox.zhu@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
Reviewed-by: Xiaolong Ye <xiaolong.ye@intel.com>

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 91d529b..5abf60e 100644 (file)
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -3847,6 +3847,11 @@ i40e_vlan_offload_set(struct rte_eth_dev *dev, int mask)
        struct i40e_vsi *vsi = pf->main_vsi;
        struct rte_eth_rxmode *rxmode;
 
+       if (mask & ETH_QINQ_STRIP_MASK) {
+               PMD_DRV_LOG(ERR, "Strip qinq is not supported.");
+               return -ENOTSUP;
+       }
+
        rxmode = &dev->data->dev_conf.rxmode;
        if (mask & ETH_VLAN_FILTER_MASK) {
                if (rxmode->offloads & DEV_RX_OFFLOAD_VLAN_FILTER)