18c2ecf20Sopenharmony_ciWhat: /sys/class/net/<iface>/dsa/tagging 28c2ecf20Sopenharmony_ciDate: August 2018 38c2ecf20Sopenharmony_ciKernelVersion: 4.20 48c2ecf20Sopenharmony_ciContact: netdev@vger.kernel.org 58c2ecf20Sopenharmony_ciDescription: 68c2ecf20Sopenharmony_ci String indicating the type of tagging protocol used by the 78c2ecf20Sopenharmony_ci DSA slave network device. 8