Re: [dpdk-dev] Problem in multi-queue receiving

[Kai Zhang <zhang.4522@osu.edu>]

Thanks, Stephen. That's the problem.


On Sun, Aug 10, 2014 at 2:11 PM, Stephen Hemminger <
stephen@networkplumber.org> wrote:

> On Sat, 9 Aug 2014 11:59:24 -0400
> Kai Zhang <zhang.4522@osu.edu> wrote:
>
> > Hi there,
> >
> > I have a problem for multi-queue receiving.
> >
> > For a specific application, I am not using the lcore abstractions in
> DPDK.
> > I launch rx and tx threads seperately. For one port with N queues, I
> > launched N rx threads and N tx threads, with each thread in charge of
> > receiving or sending only one queue.
> >
> > The tx threads work on their own queues well. However, all received
> packets
> > only go to queue 0 rx thread, and other rx threads receive nothing.
> >
> > My code is at :
> > https://github.com/kay21s/dpdk/blob/master/examples/pthread/main.c
> > It has a default NUM_QUEUE=2, which means port 0 is configured with 2
> > queues, and 2 rx threads and 2 tx threads are launched.
> > Is there any problem in my implementation? or DPDK does not support it?
> >
> > Thanks a lot!
> > Kai
>
> You aren't rxmode.mq_mode therefore you are getting the default value
> of 0 == ETH_MQ_RX_NONE. You should set it to ETH_MQ_RX_RSS to enable
> RSS mode.
>