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From: bugzilla@dpdk.org
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Subject: [Bug 1110] i40e: runtime Rx/Tx queue setup is unusable
Date: Wed, 19 Oct 2022 08:54:20 +0000
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https://bugs.dpdk.org/show_bug.cgi?id=3D1110

            Bug ID: 1110
           Summary: i40e: runtime Rx/Tx queue setup is unusable
           Product: DPDK
           Version: unspecified
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: ethdev
          Assignee: dev@dpdk.org
          Reporter: ivan.malov@oktetlabs.ru
  Target Milestone: ---

Created attachment 225
  --> https://bugs.dpdk.org/attachment.cgi?id=3D225&action=3Dedit
probable-fix

Results that have been collected by an ethdev testing tool, [1], which is
opensource, suggest that i40e PMD might have a bug in runtime queue setup.

According to log [2], if a Tx queue has not been set up, starting the device
will
fail. Apparently, the driver does not take the runtime setup feature into
account
when queues are started in a loop. The proposed fix shows the gist of the
problem.

The said bug also manifests itself with regard to Rx queues.

[1] http://mails.dpdk.org/archives/dev/2022-October/251663.html
[2] https://ts-factory.io/bublik/v2/log/123183?focusId=3D123948&mode=3Dtree=
Andlog

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