From: Andriy Berestovskyy <aber@semihalf.com>
To: Jason Kwon <m43kwon@gmail.com>
Cc: users <users@dpdk.org>
Subject: Re: [dpdk-users] KNI multi-queue example?
Date: Mon, 4 Apr 2016 18:11:56 +0200 [thread overview]
Message-ID: <CAOysbxqKV1dWKbnUNE5Ns=FeK6pnV=DPS56D8yEm6pw6yBUfTA@mail.gmail.com> (raw)
In-Reply-To: <CAEo68aqsA-fxOP+Zrf9yxjFjpzOZQ6OfG1Muo2V1ku+4D6WUiA@mail.gmail.com>
Hi Jason,
On Fri, Mar 25, 2016 at 1:00 AM, Jason Kwon <m43kwon@gmail.com> wrote:
> Is there a KNI example for devices and
> drivers which support multiple queues per port?
I guess there is no such an example, please see below.
> Would such an implementation involve instantiating multiple KNI devices,
> each to be associated with a single RX/TX queue pair? Or would it be
> possible to associate multiple RX/TX queues of a single port to a single
> KNI device?
Since KNI has just 1 RX/TX pair, for the NIC->KNI path you need to
modify kni_ingress() to iterate all the NIC RX queues and send all of
those packets to the KNI.
For the KNI->NIC path you need to modify kni_egress() to distribute
the packets received from the KNI to multiple NIC TX queues (say,
based on a hash).
Having said the above, most likely it will not get you any performance
gain, since I guess the bottleneck is KNI, not the NIC queues.
Regards,
Andriy Berestovskyy
next prev parent reply other threads:[~2016-04-04 16:12 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-25 0:00 Jason Kwon
2016-04-04 16:11 ` Andriy Berestovskyy [this message]
2016-06-08 22:59 ` Cliff Burdick
2016-06-09 11:44 ` Andriy Berestovskyy
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