Discussion of the VIRTIO specification
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From: "Michael S. Tsirkin" <mst@redhat.com>
To: Jason Wang <jasowang@redhat.com>
Cc: Heng Qi <hengqi@linux.alibaba.com>,
	virtio-comment@lists.oasis-open.org,
	Parav Pandit <parav@nvidia.com>,
	Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Subject: Re: [virtio-comment] [PATCH v2] virtio-net: support distinguishing between partial and full checksum
Date: Thu, 9 Nov 2023 03:01:53 -0500	[thread overview]
Message-ID: <20231109030057-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <CACGkMEvXBjHUmHAjBvn8UE47Ca26vx0+J22=nAygB96nakXPcw@mail.gmail.com>

On Thu, Nov 09, 2023 at 11:55:01AM +0800, Jason Wang wrote:
> > > Most userspace doesn't care about the checksum though.
> > >
> > > > Maybe we need a flag
> > > > to say which offloads are expensive?
> > > >
> > >
> > > That exposes some device details which seem not good (e.g we may want
> > > to do migration among hardware and software).
> > >
> > > Thanks
> >
> > If you do then things will be less well tuned on one of the migration
> > ends but then that is by design, isn't it?
> 
> Ok, so I'm fine to enable it by default.
> 
> Thanks

I was really asking a question. Is it true that full is more expensive
than partial for the device? So it should only be enabled if
strictly required?

> >
> > --
> > MST
> >


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  reply	other threads:[~2023-11-09  8:02 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-19  6:17 [virtio-comment] [PATCH v2] virtio-net: support distinguishing between partial and full checksum Heng Qi
2023-10-27  2:35 ` Heng Qi
2023-10-27  7:39 ` Michael S. Tsirkin
2023-10-28  1:53   ` Xuan Zhuo
2023-10-28  2:36   ` Heng Qi
2023-11-01  4:16     ` Jason Wang
2023-11-01  4:59       ` Heng Qi
2023-11-02  5:30         ` Jason Wang
2023-11-02  6:59           ` Michael S. Tsirkin
2023-11-06  6:51             ` Heng Qi
2023-11-01  5:37       ` Michael S. Tsirkin
2023-11-01  6:46         ` Heng Qi
2023-11-02  4:40         ` Jason Wang
2023-11-02  6:50           ` Michael S. Tsirkin
2023-11-09  3:55             ` Jason Wang
2023-11-09  8:01               ` Michael S. Tsirkin [this message]
2023-11-09  8:42                 ` Heng Qi

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