usip             6104 drivers/net/ethernet/mellanox/mlxsw/reg.h 			    u16 uvr_id, u16 underlay_rif, u32 usip, u32 gre_key)
usip             6110 drivers/net/ethernet/mellanox/mlxsw/reg.h 	mlxsw_reg_ritr_loopback_ipip_usip4_set(payload, usip);