https://bugs.linaro.org/show_bug.cgi?id=1383
Bug ID: 1383
Summary: validation: pktio check for poll queue type
Product: OpenDataPlane
Version: unspecified
Hardware: Other
OS: Linux
Status: UNCONFIRMED
Severity: enhancement
Priority: ---
Component: General ODP
Assignee: [email protected]
Reporter: [email protected]
In the odp_pktio validation â a pktio is created and it is configured with a
PKTIN queue.
Packets are then enqueued to the out queue of the device.
In the function wait_for_packet I think is an issue when an event is received.
There is the following condition :
if (queue != ODP_QUEUE_INVALID)
ev = queue_deq_wait_time(queue, ns);
else
ev = odp_schedule(NULL, ns);
The queue that comes as input param, is the PKTIN queue which is a scheduled
queue.
As it can be noticed the queue_deq_wait_time will be called (PKTN queue is
valid) and there,an explicit dequeue operation will be performed on a scheduled
queue which is not OK.
So a schedule would be proper instead of explicit dequeue.
A possible fix is to check for queue type instead of validity, and if the queue
is POLL then take the corresponding branch:
if (odp_queue_type(queue) == ODP_QUEUE_TYPE_POLL)
ev = queue_deq_wait_time(queue, ns);
else
ev = odp_schedule(NULL, ns);
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