Virtualization - Jul 2023 - [PATCH v1 0/2] vduse: add support for networking devices

On Sun, Jul 2, 2023 at 9:37?PM Michael S. Tsirkin <mst at redhat.com>
wrote:
>
> On Tue, Jun 27, 2023 at 01:36:50PM +0200, Maxime Coquelin wrote:
> > This small series enables virtio-net device type in VDUSE.
> > With it, basic operation have been tested, both with
> > virtio-vdpa and vhost-vdpa using DPDK Vhost library series
> > adding VDUSE support using split rings layout (merged in
> > DPDK v23.07-rc1).
> >
> > Control queue support (and so multiqueue) has also been
> > tested, but requires a Kernel series from Jason Wang
> > relaxing control queue polling [1] to function reliably.
> >
> > [1]:
https://lore.kernel.org/lkml/CACGkMEtgrxN3PPwsDo4oOsnsSLJfEmBEZ0WvjGRr3whU+QasUg
at mail.gmail.com/T/
>
> Jason promised to post a new version of that patch.
> Right Jason?
Yes.
> For now let's make sure CVQ feature flag is off?
We can do that and relax on top of my patch.

Thanks
>
> > RFC -> v1 changes:
> > =================> > - Fail device init if it does not support
VERSION_1 (Jason)
> >
> > Maxime Coquelin (2):
> >   vduse: validate block features only with block devices
> >   vduse: enable Virtio-net device type
> >
> >  drivers/vdpa/vdpa_user/vduse_dev.c | 15 +++++++++++----
> >  1 file changed, 11 insertions(+), 4 deletions(-)
> >
> > --
> > 2.41.0
>

On 7/3/23 08:44, Jason Wang wrote:
> On Sun, Jul 2, 2023 at 9:37?PM Michael S. Tsirkin <mst at redhat.com>
wrote:
>>
>> On Tue, Jun 27, 2023 at 01:36:50PM +0200, Maxime Coquelin wrote:
>>> This small series enables virtio-net device type in VDUSE.
>>> With it, basic operation have been tested, both with
>>> virtio-vdpa and vhost-vdpa using DPDK Vhost library series
>>> adding VDUSE support using split rings layout (merged in
>>> DPDK v23.07-rc1).
>>>
>>> Control queue support (and so multiqueue) has also been
>>> tested, but requires a Kernel series from Jason Wang
>>> relaxing control queue polling [1] to function reliably.
>>>
>>> [1]:
https://lore.kernel.org/lkml/CACGkMEtgrxN3PPwsDo4oOsnsSLJfEmBEZ0WvjGRr3whU+QasUg
at mail.gmail.com/T/
>>
>> Jason promised to post a new version of that patch.
>> Right Jason?
> 
> Yes.
> 
>> For now let's make sure CVQ feature flag is off?
> 
> We can do that and relax on top of my patch.
I agree? Do you prefer a features negotiation, or failing init (like
done for VERSION_1) if the VDUSE application advertises CVQ?

Thanks,
Maxime
> Thanks
> 
>>
>>> RFC -> v1 changes:
>>> =================>>> - Fail device init if it does not
support VERSION_1 (Jason)
>>>
>>> Maxime Coquelin (2):
>>>    vduse: validate block features only with block devices
>>>    vduse: enable Virtio-net device type
>>>
>>>   drivers/vdpa/vdpa_user/vduse_dev.c | 15 +++++++++++----
>>>   1 file changed, 11 insertions(+), 4 deletions(-)
>>>
>>> --
>>> 2.41.0
>>
>