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Date: Tue, 07 May 2019 12:29:55 +0000
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Subject: [dpdk-dev] [Bug 277] eventdev sw rx adapter enqueue buffer may
 store packets indefinitely
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https://bugs.dpdk.org/show_bug.cgi?id=3D277

            Bug ID: 277
           Summary: eventdev sw rx adapter enqueue buffer may store
                    packets indefinitely
           Product: DPDK
           Version: 19.05
          Hardware: All
                OS: All
            Status: CONFIRMED
          Severity: normal
          Priority: Normal
         Component: eventdev
          Assignee: dev@dpdk.org
          Reporter: matias.elo@nokia.com
  Target Milestone: ---

The sw eventdev rx adapter has an internal enqueue buffer
'rx_adapter->event_enqueue_buffer', which stores packets received from the =
NIC
until at least BATCH_SIZE (=3D32) packets have been received before enqueue=
ing
them to eventdev. If not enough packets (BATCH_SIZE) are received or the sy=
stem
stops receiving new packets, existing packets stored in the enqueue buffer =
are
never passed to eventdev.

Situation like this occurs easily for example when performing validation
testing with predefined test packets. Additionally, if packet receive rate =
is
slow, this adds a considerable amount of extra delay.

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