linux-kernel - Re: [PATCH V8 5/6] virtio: introduce a mdev based transport

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Message-ID: <20191105193336.570e8e3a.cohuck@redhat.com>
Date:   Tue, 5 Nov 2019 19:33:36 +0100
From:   Cornelia Huck <cohuck@...hat.com>
To:     Jason Wang <jasowang@...hat.com>
Cc:     kvm@...r.kernel.org, linux-s390@...r.kernel.org,
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Subject: Re: [PATCH V8 5/6] virtio: introduce a mdev based transport

On Tue,  5 Nov 2019 17:32:39 +0800
Jason Wang <jasowang@...hat.com> wrote:

> This patch introduces a new mdev transport for virtio. This is used to
> use kernel virtio driver to drive the mediated device that is capable
> of populating virtqueue directly.
> 
> A new virtio-mdev driver will be registered to the mdev bus, when a
> new virtio-mdev device is probed, it will register the device with
> mdev based config ops. This means it is a software transport between
> mdev driver and mdev device. The transport was implemented through
> device specific ops which is a part of mdev_parent_ops now.
> 
> Signed-off-by: Jason Wang <jasowang@...hat.com>
> ---
>  drivers/virtio/Kconfig       |   7 +
>  drivers/virtio/Makefile      |   1 +
>  drivers/virtio/virtio_mdev.c | 407 +++++++++++++++++++++++++++++++++++
>  3 files changed, 415 insertions(+)
>  create mode 100644 drivers/virtio/virtio_mdev.c

Reviewed-by: Cornelia Huck <cohuck@...hat.com>