i40e: runtime Rx/Tx queue setup is unusable

https://bugs.dpdk.org/show_bug.cgi?id=1110

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: [email protected]
Reporter: [email protected]
Target Milestone: ---

Created attachment 225
--> https://bugs.dpdk.org/attachment.cgi?id=225&action=edit
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=123948&mode=treeAndlog

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