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Date:   Tue, 14 May 2019 12:34:44 -0400
From: (Lennart Sorensen)
To:     Alexander Duyck <>
Cc:     Jeff Kirsher <>,
        LKML <>,
        Netdev <>,
        intel-wired-lan <>
Subject: Re: [Intel-wired-lan] i40e X722 RSS problem with NAT-Traversal IPsec

On Mon, May 13, 2019 at 12:04:00PM -0700, Alexander Duyck wrote:
> So I recreated the first packet you listed via text2pcap, replayed it
> on my test system via tcpreplay, updated my configuration to 12
> queues, and used the 2 hash keys you listed. I ended up seeing the
> traffic bounce between queues 4 and 8 with an X710 I had to test with
> when I was changing the key value.
> Unfortunately I don't have an X722 to test with. I'm suspecting that
> there may be some difference in the RSS setup, specifically it seems
> like values in the PFQF_HENA register were changed for the X722 part
> that may be causing the issues we are seeing.
> I will see if I can get someone from the networking division to take a
> look at this since I don't have access to the part in question nor a
> datasheet for it so I am not sure if I can help much more.

Great.  I hope someone can figure this out because it is working very
badly so far.

Len Sorensen

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