From: "Michael S. Tsirkin" <mst@redhat.com>
To: Yuri Benditovich <yuri.benditovich@daynix.com>
Cc: Yuri Benditovich <ybendito@redhat.com>,
virtio-comment@lists.oasis-open.org
Subject: Re: [virtio-comment] Re: [PATCH] virtio-net: define feature of per-packet RSS hash delivery
Date: Fri, 13 Dec 2019 03:38:11 -0500 [thread overview]
Message-ID: <20191213033744-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <CAOEp5OekYCJt6=2=AordSpx5ZhM-nAe_f_KRgLjaj_T4LNDNXA@mail.gmail.com>
On Fri, Dec 13, 2019 at 10:21:53AM +0200, Yuri Benditovich wrote:
> On Fri, Dec 13, 2019 at 9:16 AM Michael S. Tsirkin <mst@redhat.com> wrote:
> >
> > On Fri, Dec 13, 2019 at 06:34:39AM +0200, Yuri Benditovich wrote:
> > >
> > > So there are 2 possible profiles of devices that 'do not have RSS' but
> > > deliver hash:
> > > 1. The device is in general can do RSS, but has only one pair of
> > > queues and does only hash calculation
> > > 2. The device has multiple queues but is configured to do auto
> > > steering and we want also hash from it.
> > >
> > > My impression is that case 2 is rather academic one (at least looking forward).
> > > Do you agree?
> >
> > I am not sure I agree. auto mq is much easier to configure than RSS
> > so I image it's useful even if one wants hash.
>
> With RSS and hash delivery we're mainly targeting virtio-net in hardware.
> Auto mq is much more complicated, correct?
Hardware implementing it exists, it's not too hard, just some tables
to maintain.
> >
> > --
> > MST
> >
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next prev parent reply other threads:[~2019-12-13 8:38 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-03 18:32 [virtio-comment] [PATCH] virtio-net: define feature of per-packet RSS hash delivery Yuri Benditovich
2019-12-03 20:25 ` [virtio-comment] " Michael S. Tsirkin
2019-12-04 5:20 ` Yuri Benditovich
2019-12-11 16:34 ` Michael S. Tsirkin
2019-12-11 17:41 ` Yuri Benditovich
2019-12-11 18:20 ` Michael S. Tsirkin
2019-12-12 3:48 ` Yuri Benditovich
2019-12-12 7:43 ` Michael S. Tsirkin
2019-12-13 4:34 ` Yuri Benditovich
2019-12-13 7:15 ` Michael S. Tsirkin
2019-12-13 8:21 ` Yuri Benditovich
2019-12-13 8:38 ` Michael S. Tsirkin [this message]
2020-01-20 16:14 ` Michael S. Tsirkin
2020-01-20 16:27 ` Yuri Benditovich
2020-01-20 22:00 ` Michael S. Tsirkin
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