Re: [PATCH 2/2] vDPA: conditionally read fields in virtio-net dev

On 8/17/2022 4:55 PM, Michael S. Tsirkin wrote:

On Wed, Aug 17, 2022 at 10:14:26AM +0800, Zhu, Lingshan wrote:

quoted

Yes it is a little messy, and we can not check _F_VERSION_1 because of
transitional devices, so maybe this is the best we can do for now

I think vhost generally needs an API to declare config space endian-ness
to kernel. vdpa can reuse that too then.

Yes, I remember you have mentioned some IOCTL to set the endian-ness,
for vDPA, I think only the vendor driver knows the endian,
so we may need a new function vdpa_ops->get_endian().

In the last thread, we say maybe it's better to add a comment for now.
But if you think we should add a vdpa_ops->get_endian(), I can work
on it for sure!

Thanks
Zhu Lingshan