Re: [RFC PATCH net-next v2 2/2] selftests: net: add XDP socket tests for virtio-net

[Bui Quang Minh <minhquangbui99@gmail.com>]

On 5/30/25 18:45, Maciej Fijalkowski wrote:
> On Thu, May 29, 2025 at 09:29:14PM +0700, Bui Quang Minh wrote:
>> On 5/29/25 18:18, Maciej Fijalkowski wrote:
>>> On Tue, May 27, 2025 at 11:19:04PM +0700, Bui Quang Minh wrote:
>>>> This adds a test to test the virtio-net rx when there is a XDP socket
>>>> bound to it. There are tests for both copy mode and zerocopy mode, both
>>>> cases when XDP program returns XDP_PASS and XDP_REDIRECT to a XDP socket.
>>>>
>>>> Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com>
>>> Hi Bui,
>>>
>>> have you considered adjusting xskxceiver for your needs? If yes and you
>>> decided to go with another test app then what were the issues around it?
>>>
>>> This is yet another approach for xsk testing where we already have a
>>> test framework.
>> Hi,
>>
>> I haven't tried much hard to adapt xskxceiver. I did have a look at
>> xskxceiver but I felt the supported topology is not suitable for my need. To
>> test the receiving side in virtio-net, I use Qemu to set up virtio-net in
>> the guest and vhost-net in the host side. The sending side is in the host
>> and the receiving is in the guest so I can't figure out how to do that with
>> xskxceiver.
> I see - couldn't the python side be executing xdpsock then instead of your
> own app?

I'm not aware of xdpsock. Could you give the path to that file?

> I wouldn't like to end up with several xsk tools for testing data path on
> different environments.