[dpdk-users] KNI multi-queue example?
Andriy Berestovskyy
aber at semihalf.com
Mon Apr 4 18:11:56 CEST 2016
Hi Jason,
On Fri, Mar 25, 2016 at 1:00 AM, Jason Kwon <m43kwon at 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
More information about the users
mailing list