virtio-devices: iommu: Remove trivial handling of 'EVENT_Q_EVENT'
@@ -47,7 +47,7 @@ const REQUEST_Q_EVENT: u16 = EPOLL_HELPER_EVENT_LAST + 1;
/// New descriptors are pending on the event queue.
/// "eventq" lets the device report any fault or other asynchronous event to
/// the guest driver.
-const EVENT_Q_EVENT: u16 = EPOLL_HELPER_EVENT_LAST + 2;
+const _EVENT_Q_EVENT: u16 = EPOLL_HELPER_EVENT_LAST + 2;
/// PROBE properties size.
/// This is the minimal size to provide at least one RESV_MEM property.
@@ -634,7 +634,7 @@ struct IommuEpollHandler {
_event_queue: Queue,
interrupt_cb: Arc<dyn VirtioInterrupt>,
request_queue_evt: EventFd,
- event_queue_evt: EventFd,
+ _event_queue_evt: EventFd,
kill_evt: EventFd,
pause_evt: EventFd,
mapping: Arc<IommuMapping>,
@@ -664,10 +664,6 @@ impl IommuEpollHandler {
Ok(used_descs)
}
- fn event_queue(&mut self) -> bool {
- false
- }
-
fn signal_used_queue(&self, queue_index: u16) -> result::Result<(), DeviceError> {
self.interrupt_cb
.trigger(VirtioInterruptType::Queue(queue_index))
@@ -684,7 +680,6 @@ impl IommuEpollHandler {
) -> result::Result<(), EpollHelperError> {
let mut helper = EpollHelper::new(&self.kill_evt, &self.pause_evt)?;
helper.add_event(self.request_queue_evt.as_raw_fd(), REQUEST_Q_EVENT)?;
- helper.add_event(self.event_queue_evt.as_raw_fd(), EVENT_Q_EVENT)?;
helper.run(paused, paused_sync, self)?;
Ok(())
@@ -719,20 +714,6 @@ impl EpollHelperHandler for IommuEpollHandler {
})?;
}
}
- EVENT_Q_EVENT => {
- self.event_queue_evt.read().map_err(|e| {
- EpollHelperError::HandleEvent(anyhow!("Failed to get queue event: {:?}", e))
- })?;
-
- if self.event_queue() {
- self.signal_used_queue(1).map_err(|e| {
- EpollHelperError::HandleEvent(anyhow!(
- "Failed to signal used queue: {:?}",
- e
- ))
- })?;
- }
- }
_ => {
return Err(EpollHelperError::HandleEvent(anyhow!(
"Unexpected event: {}",
@@ -1043,7 +1024,7 @@ impl VirtioDevice for Iommu {
let (kill_evt, pause_evt) = self.common.dup_eventfds();
let (_, request_queue, request_queue_evt) = queues.remove(0);
- let (_, _event_queue, event_queue_evt) = queues.remove(0);
+ let (_, _event_queue, _event_queue_evt) = queues.remove(0);
let mut handler = IommuEpollHandler {
mem,
@@ -1051,7 +1032,7 @@ impl VirtioDevice for Iommu {
_event_queue,
interrupt_cb,
request_queue_evt,
- event_queue_evt,
+ _event_queue_evt,
kill_evt,
pause_evt,
mapping: self.mapping.clone(),
