netdev - Re: [PATCH V8 6/6] docs: sample driver to demonstrate how to implement virtio-mdev framework

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Message-ID: <20191105193518.5c1179d7.cohuck@redhat.com>
Date:   Tue, 5 Nov 2019 19:35:18 +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 6/6] docs: sample driver to demonstrate how to
 implement virtio-mdev framework

On Tue,  5 Nov 2019 17:32:40 +0800
Jason Wang <jasowang@...hat.com> wrote:

> This sample driver creates mdev device that simulate virtio net device
> over virtio mdev transport. The device is implemented through vringh
> and workqueue. A device specific dma ops is to make sure HVA is used
> directly as the IOVA. This should be sufficient for kernel virtio
> driver to work.
> 
> Only 'virtio' type is supported right now. I plan to add 'vhost' type
> on top which requires some virtual IOMMU implemented in this sample
> driver.
> 
> Signed-off-by: Jason Wang <jasowang@...hat.com>
> ---
>  MAINTAINERS                |   1 +
>  samples/Kconfig            |   7 +
>  samples/vfio-mdev/Makefile |   1 +
>  samples/vfio-mdev/mvnet.c  | 685 +++++++++++++++++++++++++++++++++++++
>  4 files changed, 694 insertions(+)
>  create mode 100644 samples/vfio-mdev/mvnet.c

Have not really reviewed this, but looks sane at a glance.

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