linux-kernel - Re: [PATCH net-next v9 0/4] vsock/virtio/vhost: MSG

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Message-ID: <hq67e2b3ljfjikvbaneczdve3fzg3dl5ziyc7xtujyqesp6dzm@fh5nqkptpb4n>
Date:   Tue, 19 Sep 2023 15:35:51 +0200
From:   Stefano Garzarella <sgarzare@...hat.com>
To:     Paolo Abeni <pabeni@...hat.com>,
        "Michael S. Tsirkin" <mst@...hat.com>
Cc:     Arseniy Krasnov <avkrasnov@...utedevices.com>,
        Stefan Hajnoczi <stefanha@...hat.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Jason Wang <jasowang@...hat.com>,
        Bobby Eshleman <bobby.eshleman@...edance.com>,
        kvm@...r.kernel.org, virtualization@...ts.linux-foundation.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel@...rdevices.ru, oxffffaa@...il.com
Subject: Re: [PATCH net-next v9 0/4] vsock/virtio/vhost: MSG_ZEROCOPY
 preparations

On Tue, Sep 19, 2023 at 03:19:54PM +0200, Paolo Abeni wrote:
>On Tue, 2023-09-19 at 09:54 +0200, Stefano Garzarella wrote:
>> On Mon, Sep 18, 2023 at 07:56:00PM +0300, Arseniy Krasnov wrote:
>> > Hi Stefano,
>> >
>> > thanks for review! So when this patchset will be merged to net-next,
>> > I'll start sending next part of MSG_ZEROCOPY patchset, e.g. AF_VSOCK +
>> > Documentation/ patches.
>>
>> Ack, if it is not a very big series, maybe better to include also the
>> tests so we can run them before merge the feature.
>
>I understand that at least 2 follow-up series are waiting for this, one
>of them targeting net-next and the bigger one targeting the virtio
>tree. Am I correct?

IIUC the next series will touch only the vsock core
(net/vmw_vsock/af_vsock.c), tests, and documentation.

The virtio part should be fully covered by this series.

@Arseniy feel free to correct me!

>
>DaveM suggests this should go via the virtio tree, too. Any different
>opinion?

For this series should be fine, I'm not sure about the next series.
Merging this with the virtio tree, then it forces us to do it for
followup as well right?

In theory followup is more on the core, so better with net-next, but
it's also true that for now only virtio transports support it, so it
might be okay to continue with virtio.

@Michael WDYT?

Thanks,
Stefano