[V3] net/qede: reduce the optimization level for gcc > 11

David Marchand david.marchand at redhat.com
Tue Sep 16 10:59:00 CEST 2025


On Wed, 10 Sept 2025 at 18:42, Stephen Hemminger
<stephen at networkplumber.org> wrote:
> On Wed, 10 Sep 2025 08:49:38 +0200
> Thierry Herbelot <thierry.herbelot at 6wind.com> wrote:
> > The error chain is:
> >
> > RX-nombufs
> >   => (testpmd) stats.rx_nombuf
> >    => (qede) p_stats->common.no_buff_discards
> >     => (qede/base) HILO_64_REGPAIR(mstats.no_buff_discard)
> >           (internal to the NIC)
> >
>
> Thanks, lets root cause this (rather than paper it over) because

+1

> other drivers may have same issue. Since no mbufs are present
> looks like rx discriptor never made it to NIC

I would add that if the descs do make it to the nic, maybe the (IOVA)
addresses are incorrect.
We changed the default IOVA not so long ago.. so maybe play with
--iova-mode to continue investigations.


-- 
David Marchand



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