netdev - Re: [PATCH net-next v2 00/12] virtnet

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Date: Sat, 1 Jun 2024 09:01:29 +0800
From: Xuan Zhuo <xuanzhuo@...ux.alibaba.com>
To: "Michael S. Tsirkin" <mst@...hat.com>
Cc: netdev@...r.kernel.org,
 "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>,
 Eugenio Pérez <eperezma@...hat.com>,
 Alexei Starovoitov <ast@...nel.org>,
 Daniel Borkmann <daniel@...earbox.net>,
 Jesper Dangaard Brouer <hawk@...nel.org>,
 John Fastabend <john.fastabend@...il.com>,
 virtualization@...ts.linux.dev,
 bpf@...r.kernel.org
Subject: Re: [PATCH net-next v2 00/12] virtnet_net: prepare for af-xdp

On Thu, 30 May 2024 07:53:17 -0400, "Michael S. Tsirkin" <mst@...hat.com> wrote:
> On Thu, May 30, 2024 at 07:23:54PM +0800, Xuan Zhuo wrote:
> > This patch set prepares for supporting af-xdp zerocopy.
> > There is no feature change in this patch set.
> > I just want to reduce the patch num of the final patch set,
> > so I split the patch set.
> >
> > Thanks.
> >
> > v2:
> >     1. Add five commits. That provides some helper for sq to support premapped
> >        mode. And the last one refactors distinguishing xmit types.
> >
> > v1:
> >     1. resend for the new net-next merge window
> >
>
>
> It's great that you are working on this but
> I'd like to see the actual use of this first.

I want to finish this work quickly. I don't have a particular preference for
whether to use a separate directory; as an engineer, I think it makes sense. I
don't want to keep dwelling on this issue. I also hope that as a maintainer, you
can help me complete this work as soon as possible. You should know that I have
been working on this for about three years now.

I can completely follow your suggestion regarding splitting the directory.
However, there will still be many patches, so I hope that these patches in this
patch set can be merged first.

   virtio_net: separate virtnet_rx_resize()
   virtio_net: separate virtnet_tx_resize()
   virtio_net: separate receive_mergeable
   virtio_net: separate receive_buf
   virtio_net: refactor the xmit type

I will try to compress the subsequent patch sets, hoping to reduce them to about 15.

Thanks.

>
> >
> > Xuan Zhuo (12):
> >   virtio_net: independent directory
> >   virtio_net: move core structures to virtio_net.h
> >   virtio_net: add prefix virtnet to all struct inside virtio_net.h
> >   virtio_net: separate virtnet_rx_resize()
> >   virtio_net: separate virtnet_tx_resize()
> >   virtio_net: separate receive_mergeable
> >   virtio_net: separate receive_buf
> >   virtio_ring: introduce vring_need_unmap_buffer
> >   virtio_ring: introduce dma map api for page
> >   virtio_ring: introduce virtqueue_dma_map_sg_attrs
> >   virtio_ring: virtqueue_set_dma_premapped() support to disable
> >   virtio_net: refactor the xmit type
> >
> >  MAINTAINERS                                   |   2 +-
> >  drivers/net/Kconfig                           |   9 +-
> >  drivers/net/Makefile                          |   2 +-
> >  drivers/net/virtio/Kconfig                    |  12 +
> >  drivers/net/virtio/Makefile                   |   8 +
> >  drivers/net/virtio/virtnet.h                  | 248 ++++++++
> >  .../{virtio_net.c => virtio/virtnet_main.c}   | 596 +++++++-----------
> >  drivers/virtio/virtio_ring.c                  | 118 +++-
> >  include/linux/virtio.h                        |  12 +-
> >  9 files changed, 606 insertions(+), 401 deletions(-)
> >  create mode 100644 drivers/net/virtio/Kconfig
> >  create mode 100644 drivers/net/virtio/Makefile
> >  create mode 100644 drivers/net/virtio/virtnet.h
> >  rename drivers/net/{virtio_net.c => virtio/virtnet_main.c} (93%)
> >
> > --
> > 2.32.0.3.g01195cf9f
>