Re: [Intel-wired-lan] [PATCH iwl-next] igc: enable HW vlan tag insertion/stripping by default

From: Rui Salvaterra
Date: Fri Mar 28 2025 - 11:01:35 EST


Hi again, everyone,

Just a quick question: this is scheduled for 6.16, it's too late for
6.15, correct?

Kind regards,
Rui Salvaterra


On Thu, 27 Mar 2025 at 12:54, Mor Bar-Gabay <morx.bar.gabay@xxxxxxxxx> wrote:
>
> On 13/03/2025 11:35, Rui Salvaterra wrote:
> > This is enabled by default in other Intel drivers I've checked (e1000, e1000e,
> > iavf, igb and ice). Fixes an out-of-the-box performance issue when running
> > OpenWrt on typical mini-PCs with igc-supported Ethernet controllers and 802.1Q
> > VLAN configurations, as ethtool isn't part of the default packages and sane
> > defaults are expected.
> >
> > In my specific case, with an Intel N100-based machine with four I226-V Ethernet
> > controllers, my upload performance increased from under 30 Mb/s to the expected
> > ~1 Gb/s.
> >
> > Signed-off-by: Rui Salvaterra <rsalvaterra@xxxxxxxxx>
> > Reviewed-by: Simon Horman <horms@xxxxxxxxxx>
> > Reviewed-by: Vitaly Lifshits <vitaly.lifshits@xxxxxxxxx>
> > Reviewed-by: Kurt Kanzenbach <kurt@xxxxxxxxxxxxx>
> > ---
> > drivers/net/ethernet/intel/igc/igc_main.c | 3 +++
> > 1 file changed, 3 insertions(+)
> >
> Tested-by: Mor Bar-Gabay <morx.bar.gabay@xxxxxxxxx>