> > > > +struct tc_prio_qopt_offload_params {
> > > > + int bands;
> > > > + u8 priomap[TC_PRIO_MAX + 1];
> > > > + /* In case that a prio qdisc is offloaded and now is changed to
> > > > a
> > > > + * non-offloadedable config, it needs to update the backlog
> > > > value
> > > > + * to negate the HW backlog value.
> > > > + */
> > > > + u32 *backlog;
> > > > +};
> > >
> > > Could we please pass the full qstats on replace and destroy. This
> > > simplifies the driver code and allows handling the qlen as well as
> > > backlog. Please see the 2 patch series I sent earlier yesterday.
> >
> > That might give the false impression that offloading driver is expected
> > to correct all the qstats fields during destruction, whereas for most of
> > them it doesn't seem appropriate.
>
> The driver is supposed to return the momentary stats to their
> original/SW-only value. And the driver knows exactly which stats
> those are, just look at your patch 5, you handle backlog completely
> differently than other stats already.
*we* surely understand that now. I'm just mentioning it might
confuse future offloaders; No strong objection here.
And I agree the alternative [passing pointers to each momentary stat]
is quite ugly.