[dpdk-dev] [PATCH v4 6/8] virtio-user: add new virtual pci driver for virtio
Tan, Jianfeng
jianfeng.tan at intel.com
Fri May 13 04:00:55 CEST 2016
Hi Michael,
On 5/13/2016 1:02 AM, Michael S. Tsirkin wrote:
> On Thu, May 12, 2016 at 03:08:05PM +0800, Tan, Jianfeng wrote:
>> (2) It's more aligned to previous logic to hide the detail to differentiate
>> modern/legacy device.
> Why is there a need to support legacy interfaces at all? It's a container
> so if it's in use one can be reasonably sure you have a new kernel.
>
No, there's no need. The added device, virtio-user, is parallel to
legacy and modern device. But there's a feature bit inside vhost user
protocol for vhost user to decide the length of header, current
implementation by default set this feature bit.
Thanks,
Jianfeng
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