TUN_F_TSO_ECN 89 include/uapi/linux/if_tun.h #define TUN_F_TSO_ECN 0x08 /* I can handle TSO with ECN bits. */ TUN_F_TSO_ECN 89 tools/include/uapi/linux/if_tun.h #define TUN_F_TSO_ECN 0x08 /* I can handle TSO with ECN bits. */