+static void
+hns3_update_port_base_vlan_info(struct hns3_hw *hw,
+ struct hns3_mbx_pf_to_vf_cmd *req)
+{
+#define PVID_STATE_OFFSET 1
+ uint16_t new_pvid_state = req->msg[PVID_STATE_OFFSET] ?
+ HNS3_PORT_BASE_VLAN_ENABLE : HNS3_PORT_BASE_VLAN_DISABLE;
+ /*
+ * Currently, hardware doesn't support more than two layers VLAN offload
+ * based on hns3 network engine, which would cause packets loss or wrong
+ * packets for these types of packets. If the hns3 PF kernel ethdev
+ * driver sets the PVID for VF device after initialization of the
+ * related VF device, the PF driver will notify VF driver to update the
+ * PVID configuration state. The VF driver will update the PVID
+ * configuration state immediately to ensure that the VLAN process in Tx
+ * and Rx is correct. But in the window period of this state transition,
+ * packets loss or packets with wrong VLAN may occur.
+ */
+ if (hw->port_base_vlan_cfg.state != new_pvid_state) {
+ hw->port_base_vlan_cfg.state = new_pvid_state;
+ hns3_update_all_queues_pvid_proc_en(hw);
+ }
+}
+