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Date:      Sat, 24 Sep 2011 16:55:27 -0400
From:      Arnaud Lacombe <lacombar@gmail.com>
To:        Rafael Ganascim <rganascim@gmail.com>
Cc:        freebsd-net@freebsd.org
Subject:   Re: em/igb multiqueue support
Message-ID:  <CACqU3MUGRvgtMVaBrVBGBour04sVyv=2jumC-R8ob72FunZ6MQ@mail.gmail.com>
In-Reply-To: <CAD4ZOMxBQeEafTjpGfSZfRyqQuTJj6t1=GGdwAi5y3nu_1F5=g@mail.gmail.com>
References:  <CAD4ZOMxBQeEafTjpGfSZfRyqQuTJj6t1=GGdwAi5y3nu_1F5=g@mail.gmail.com>

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Hi,

On Sat, Sep 24, 2011 at 4:09 PM, Rafael Ganascim <rganascim@gmail.com> wrote:
> Hi,
>
> I think that this is an old question....
>
> I think that Intel 82575 (and another models) hardware are capable of
> multiple queues both on the receive and the send side. Is it right?
> Currently the processing of packets is limited to one CPU per NIC.
>
> Can we have multiple taskq processes for one NIC in parallel? Is
> anyone working on this right now, and if not does this sound like
> something
> anyone is interested in doing? (yes, I know the Yandex driver).
>
igb(4) already supports multiqueue, with 1 task per queue, and you can
have at most 4 queue on the 82575. em(4) multiqueue is more
controversial.

 - Arnaud

> --
> Best regards,
>
> Rafael
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