From: Cornelia Huck <cohuck@redhat•com>
To: Jason Wang <jasowang@redhat•com>
Cc: kvm@vger•kernel.org, linux-s390@vger•kernel.org,
linux-kernel@vger•kernel.org, dri-devel@lists•freedesktop.org,
intel-gfx@lists•freedesktop.org,
intel-gvt-dev@lists•freedesktop.org, kwankhede@nvidia•com,
alex.williamson@redhat•com, mst@redhat•com, tiwei.bie@intel•com,
virtualization@lists•linux-foundation.org,
netdev@vger•kernel.org, maxime.coquelin@redhat•com,
cunming.liang@intel•com, zhihong.wang@intel•com,
rob.miller@broadcom•com, xiao.w.wang@intel•com,
haotian.wang@sifive•com, zhenyuw@linux•intel.com,
zhi.a.wang@intel•com, jani.nikula@linux•intel.com,
joonas.lahtinen@linux•intel.com, rodrigo.vivi@intel•com,
airlied@linux•ie, daniel@ffwll•ch, farman@linux•ibm.com,
pasic@linux•ibm.com, sebott@linux•ibm.com, oberpar@linux•ibm.com,
heiko.carstens@de•ibm.com, gor@linux•ibm.com,
borntraeger@de•ibm.com, akrowiak@linux•ibm.com,
freude@linux•ibm.com, lingshan.zhu@intel•com, idos@mellanox•com,
eperezma@redhat•com, lulu@redhat•com, parav@mellanox•com,
christophe.de.dinechin@gmail•com, kevin.tian@intel•com,
stefanha@redhat•com
Subject: Re: [PATCH V10 0/6] mdev based hardware virtio offloading support
Date: Wed, 6 Nov 2019 15:16:35 +0100 [thread overview]
Message-ID: <20191106151635.0d1cb3bc.cohuck@redhat.com> (raw)
In-Reply-To: <20191106133531.693-1-jasowang@redhat.com>
On Wed, 6 Nov 2019 21:35:25 +0800
Jason Wang <jasowang@redhat•com> wrote:
> Hi all:
>
> There are hardwares that can do virtio datapath offloading while
> having its own control path. This path tries to implement a mdev based
> unified API to support using kernel virtio driver to drive those
> devices. This is done by introducing a new mdev transport for virtio
> (virtio_mdev) and register itself as a new kind of mdev driver. Then
> it provides a unified way for kernel virtio driver to talk with mdev
> device implementation.
>
> Though the series only contains kernel driver support, the goal is to
> make the transport generic enough to support userspace drivers. This
> means vhost-mdev[1] could be built on top as well by resuing the
> transport.
>
> A sample driver is also implemented which simulate a virito-net
> loopback ethernet device on top of vringh + workqueue. This could be
> used as a reference implementation for real hardware driver.
>
> Also a real IFC VF driver was also posted here[2] which is a good
> reference for vendors who is interested in their own virtio datapath
> offloading product.
>
> Consider mdev framework only support VFIO device and driver right now,
> this series also extend it to support other types. This is done
> through introducing class id to the device and pairing it with
> id_talbe claimed by the driver. On top, this seris also decouple
> device specific ops out of the common ones for implementing class
> specific operations over mdev bus.
>
> Pktgen test was done with virito-net + mvnet loop back device.
>
> Please review.
All looking good to me now.
>
> [1] https://lkml.org/lkml/2019/11/5/424
> [2] https://lkml.org/lkml/2019/11/5/227
next prev parent reply other threads:[~2019-11-06 14:17 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-06 13:35 [PATCH V10 0/6] mdev based hardware virtio offloading support Jason Wang
2019-11-06 13:35 ` [PATCH V10 1/6] mdev: class id support Jason Wang
2019-11-06 13:35 ` [PATCH V10 2/6] modpost: add support for mdev class id Jason Wang
2019-11-06 13:35 ` [PATCH V10 3/6] mdev: introduce device specific ops Jason Wang
2019-11-06 13:35 ` [PATCH V10 4/6] mdev: introduce virtio device and its device ops Jason Wang
2019-11-06 13:35 ` [PATCH V10 5/6] virtio: introduce a mdev based transport Jason Wang
2019-11-06 13:35 ` [PATCH V10 6/6] docs: sample driver to demonstrate how to implement virtio-mdev framework Jason Wang
2019-11-07 9:08 ` Michael S. Tsirkin
2019-11-07 10:18 ` Jason Wang
2019-11-07 11:21 ` Michael S. Tsirkin
2019-11-07 12:43 ` Jason Wang
2019-11-07 12:47 ` Jason Wang
2019-11-07 13:08 ` Michael S. Tsirkin
2019-11-07 13:40 ` Jason Wang
2019-11-07 13:51 ` Michael S. Tsirkin
2019-11-07 13:08 ` Michael S. Tsirkin
2019-11-07 13:32 ` Jason Wang
2019-11-07 13:50 ` Michael S. Tsirkin
2019-11-07 14:20 ` Jason Wang
2019-11-06 14:16 ` Cornelia Huck [this message]
2019-11-07 9:09 ` [PATCH V10 0/6] mdev based hardware virtio offloading support Michael S. Tsirkin
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