netdev - Re: [PATCH vhost 02/22] virtio_ring: introduce virtqueue_dma_[un]map_page

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Message-ID: <1697620622.3183842-4-xuanzhuo@linux.alibaba.com>
Date: Wed, 18 Oct 2023 17:17:02 +0800
From: Xuan Zhuo <xuanzhuo@...ux.alibaba.com>
To: "Michael S. Tsirkin" <mst@...hat.com>
Cc: "David S. Miller" <davem@...emloft.net>,
 Eric Dumazet <edumazet@...gle.com>,
 Jakub Kicinski <kuba@...nel.org>,
 Paolo Abeni <pabeni@...hat.com>,
 Jason Wang <jasowang@...hat.com>,
 Alexei Starovoitov <ast@...nel.org>,
 Daniel Borkmann <daniel@...earbox.net>,
 Jesper Dangaard Brouer <hawk@...nel.org>,
 John Fastabend <john.fastabend@...il.com>,
 netdev@...r.kernel.org,
 bpf@...r.kernel.org,
 virtualization@...ts.linux-foundation.org
Subject: Re: [PATCH vhost 02/22] virtio_ring: introduce virtqueue_dma_[un]map_page_attrs

On Wed, 18 Oct 2023 05:13:44 -0400, "Michael S. Tsirkin" <mst@...hat.com> wrote:
> On Wed, Oct 18, 2023 at 04:57:21PM +0800, Xuan Zhuo wrote:
> > On Wed, 18 Oct 2023 04:44:24 -0400, "Michael S. Tsirkin" <mst@...hat.com> wrote:
> > > On Wed, Oct 18, 2023 at 04:00:22PM +0800, Xuan Zhuo wrote:
> > > > On Wed, 18 Oct 2023 03:59:03 -0400, "Michael S. Tsirkin" <mst@...hat.com> wrote:
> > > > > On Wed, Oct 18, 2023 at 03:53:00PM +0800, Xuan Zhuo wrote:
> > > > > > Hi Michael,
> > > > > >
> > > > > > Do you think it's appropriate to push the first two patches of this patch set to
> > > > > > linux 6.6?
> > > > > >
> > > > > > Thanks.
> > > > >
> > > > > I generally treat patchsets as a whole unless someone asks me to do
> > > > > otherwise. Why do you want this?
> > > >
> > > > As we discussed, the patch set supporting AF_XDP will be push to net-next.
> > > > But the two patchs belong to the vhost.
> > > >
> > > > So, if you think that is appropriate, I will post a new patchset(include the two
> > > > patchs without virtio-net + AF_XDP) to vhost. I wish that can be merged to 6.6.
> > >
> > > Oh wait 6.6? Too late really, merge window has been closed for weeks.
> >
> > I mean as a fix. So I ask you do you think it is appropriate?
>
> Sure if there's a bugfix please post is separately - what issues do
> these two patches fix? this is the part I'm missing. Especially patch 2
> which just adds a new API.


No bugfix. That is the requirement of the supporting AF_XDP.

So please ignore my question. Sorry ^_^.

Thanks.


>
> > >
> > > > Then when the 6.7 net-next merge window is open, I can push this patch set to 6.7.
> > > > The v1 version use the virtqueue_dma_map_single_attrs to replace
> > > > virtqueue_dma_map_page_attrs. But I think we should use virtqueue_dma_map_page_attrs.
> > > >
> > > > Thanks.
> > > >
> > >
> > > Get a complete working patchset that causes no regressions posted first please
> > > then we will discuss merge strategy.
> > > I would maybe just put everything in one file for now, easier to merge,
> > > refactor later when it's all upstream. But up to you.
> >
> > OK. I will get a working patchset firstly.
> >
> > Thanks.
> >
> > >
> > >
> > > > >
> > > > > --
> > > > > MST
> > > > >
> > >
>