Re: [PATCH RFC net-next v5 10/14] virtio/vsock: add VIRTIO_VSOCK_F_DGRAM feature bit

Stefano Garzarella
2023-07-27T07:48:34Z

On Wed, Jul 26, 2023 at 02:38:08PM -0400, Michael S. Tsirkin wrote:
>On Wed, Jul 19, 2023 at 12:50:14AM +0000, Bobby Eshleman wrote:
>> This commit adds a feature bit for virtio vsock to support datagrams.
>>
>> Signed-off-by: Jiang Wang <jiang.wang@bytedance.com>
>> Signed-off-by: Bobby Eshleman <bobby.eshleman@bytedance.com>
>> ---
>> include/uapi/linux/virtio_vsock.h | 1 +
>> 1 file changed, 1 insertion(+)
>>
>> diff --git a/include/uapi/linux/virtio_vsock.h b/include/uapi/linux/virtio_vsock.h
>> index 331be28b1d30..27b4b2b8bf13 100644
>> --- a/include/uapi/linux/virtio_vsock.h
>> +++ b/include/uapi/linux/virtio_vsock.h
>> @@ -40,6 +40,7 @@
>>
>> /* The feature bitmap for virtio vsock */
>> #define VIRTIO_VSOCK_F_SEQPACKET 1 /* SOCK_SEQPACKET supported */
>> +#define VIRTIO_VSOCK_F_DGRAM 3 /* SOCK_DGRAM supported */
>>
>> struct virtio_vsock_config {
>> __le64 guest_cid;
>
>pls do not add interface without first getting it accepted in the
>virtio spec.

Yep, fortunatelly this series is still RFC.
I think by now we've seen that the implementation is doable, so we
should discuss the changes to the specification ASAP. Then we can
merge the series.

@Bobby can you start the discussion about spec changes?

Thanks,
Stefano