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From: David Liu <dliu@iol.unh.edu>
To: Thomas Monjalon <thomas@monjalon.net>
Cc: dpdk-dev <dev@dpdk.org>,
	dts@dpdk.org, Lincoln Lavoie <lylavoie@iol.unh.edu>,
	 David Marchand <david.marchand@redhat.com>,
	Ferruh Yigit <ferruh.yigit@intel.com>,
	 Andrew Rybchenko <arybchenko@solarflare.com>,
	Ori Kam <orika@mellanox.com>,
	 Ciara Power <ciara.power@intel.com>,
	Ivan Ilchenko <ivan.ilchenko@oktetlabs.ru>,
	Hemant Agrawal <hemant.agrawal@nxp.com>,
	Stephen Hemminger <stephen@networkplumber.org>,
	 Raslan Darawsheh <rasland@mellanox.com>
Subject: Re: [dts] RSS Key Update Feature
Date: Tue, 30 Jun 2020 09:01:02 -0400
Message-ID: <CAAuqQpT4jnWo+P3JA2iePK_fmU=S_0-OtSUnOVAwJXdiHHFKBw@mail.gmail.com> (raw)
In-Reply-To: <2250034.MpDbe8kn2E@thomas>

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Thank you for the clarification.

On Mon, Jun 29, 2020 at 7:48 PM Thomas Monjalon <thomas@monjalon.net> wrote:

> 29/06/2020 23:07, David Liu:
> > Hello all,
> >
> > I will be implementing a test in DTS for RSS Key Update.
> > http://doc.dpdk.org/guides/nics/features.html#rss-key-update
> >
> > To my understanding, this feature will test the ability to configure the
> > hash key of the ports. If that is incorrect, please let me know.
> >
> > Configure the port RSS hash key in testpmd and check if the new key will
> be
> > kept. Test configure the hash key that is longer than the max length and
> > shorter than the max length.
> >
> > Then start sending in packets with different source and destination IP
> > addresses. Ensure the ports are still able to calculate the hash value
> from
> > the incoming packets.
>
> Updating the key should change the destination queue of the packets.
> By setting up multi-queue Rx and choosing IP addresses accordingly,
> you can see packets arriving on the expected queue.
>
> > Please let me know if there is anything else need to be tested,
>
> A related test could be to read the computed hash in the mbuf metadata.
>
>
>

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<div dir="ltr"><div dir="ltr">Thank you for the clarification.</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Jun 29, 2020 at 7:48 PM Thomas Monjalon &lt;<a href="mailto:thomas@monjalon.net">thomas@monjalon.net</a>&gt; wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">29/06/2020 23:07, David Liu:<br>
&gt; Hello all,<br>
&gt; <br>
&gt; I will be implementing a test in DTS for RSS Key Update.<br>
&gt; <a href="http://doc.dpdk.org/guides/nics/features.html#rss-key-update" rel="noreferrer" target="_blank">http://doc.dpdk.org/guides/nics/features.html#rss-key-update</a><br>
&gt; <br>
&gt; To my understanding, this feature will test the ability to configure the<br>
&gt; hash key of the ports. If that is incorrect, please let me know.<br>
&gt; <br>
&gt; Configure the port RSS hash key in testpmd and check if the new key will be<br>
&gt; kept. Test configure the hash key that is longer than the max length and<br>
&gt; shorter than the max length.<br>
&gt; <br>
&gt; Then start sending in packets with different source and destination IP<br>
&gt; addresses. Ensure the ports are still able to calculate the hash value from<br>
&gt; the incoming packets.<br>
<br>
Updating the key should change the destination queue of the packets.<br>
By setting up multi-queue Rx and choosing IP addresses accordingly,<br>
you can see packets arriving on the expected queue.<br>
<br>
&gt; Please let me know if there is anything else need to be tested,<br>
<br>
A related test could be to read the computed hash in the mbuf metadata.<br>
<br>
<br>
</blockquote></div></div>

      reply index

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-29 21:07 David Liu
2020-06-29 23:48 ` Thomas Monjalon
2020-06-30 13:01   ` David Liu [this message]

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