On Fri, Sep 16, 2016 at 01:39:15AM +0300, Michael S. Tsirkin wrote:
> The idea is to have a r/w descriptor in a ring structure,
> replacing the used and available ring, index and descriptor
> buffer.
This is probably obvious but:
Why is the desc.index field needed?
The index field would be needed if the driver had to jump over a DESC_HW
descriptor when adding descriptors, but that doesn't seem necessary
since the device is supposed to overwrite descriptors in ascending ring
order when they complete out-of-order.
Stefan
