263                 .map_err(NetError::DescriptorChain)?;  in process_ctrl()
265                 Writer::new(self.mem.clone(), desc_chain).map_err(NetError::DescriptorChain)?;  in process_ctrl()
267                 reader.read_obj().map_err(NetError::ReadCtrlHeader)?;  in process_ctrl()
277                         writer.write_all(&[ack]).map_err(NetError::WriteAck)?;  in process_ctrl()
281                     let offloads: Le64 = reader.read_obj().map_err(NetError::ReadCtrlData)?;  in process_ctrl()
285                         .map_err(NetError::TapSetOffload)?;  in process_ctrl()
287                     writer.write_all(&[ack]).map_err(NetError::WriteAck)?;  in process_ctrl()
291                         let pairs: Le16 = reader.read_obj().map_err(NetError::ReadCtrlData)?;  in process_ctrl()
299                             writer.write_all(&[ack]).map_err(NetError::WriteAck)?;  in process_ctrl()
304                         writer.write_all(&[ack]).map_err(NetError::WriteAck)?;  in process_ctrl()
348         .map_err(NetError::CreateWaitContext)?;  in run()
353                 .map_err(NetError::CreateWaitContext)?;  in run()
358                     .map_err(NetError::CreateWaitContext)?;  in run()
364             let events = wait_ctx.wait().map_err(NetError::WaitError)?;  in run()
372                                 .map_err(NetError::WaitContextDisableTap)?;  in run()
385                                 .map_err(NetError::WaitContextEnableTap)?;  in run()
448         let tap: T = T::new(true, multi_queue).map_err(NetError::TapOpen)?;  in new()
449         tap.set_ip_addr(ip_addr).map_err(NetError::TapSetIp)?;  in new()
450         tap.set_netmask(netmask).map_err(NetError::TapSetNetmask)?;  in new()
452             .map_err(NetError::TapSetMacAddress)?;  in new()
454         tap.enable().map_err(NetError::TapEnable)?;  in new()
462         let taps = tap.into_mq_taps(vq_pairs).map_err(NetError::TapOpen)?;  in from()
488             let kill_evt = Event::new().map_err(NetError::CreateKillEvent)?;  in from()
489             let worker_kill_evt = kill_evt.try_clone().map_err(NetError::CloneKillEvent)?;  in from()
552         .map_err(NetError::TapSetVnetHdrSize)?;  in validate_and_configure_tap()