Hi Grygorii et al,
On Thu, Oct 1, 2020 at 2:56 PM Grygorii Strashko
<grygorii.strashko@xxxxxx> wrote:
> On 01/10/2020 11:22, Laurent Pinchart wrote:
> > On Thu, Oct 01, 2020 at 11:17:48AM +0300, Tony Lindgren wrote:
> >>>> -rc7 spends most of it's time:
> >>>> [ 7.635530] Micrel KSZ9031 Gigabit PHY 48485000.mdio:01: attached PHY driver [Micrel KSZ9031 Gigabit PHY] (mii_bus:phy_addr=48485000.mdio:01, irq=POLL)
> >>>> [ 14.956671] cpsw 48484000.ethernet eth0: Link is Up - 1Gbps/Full - flow control off
> >>>> [ 15.005211] IP-Config: Complete:
1. Is irq=POLL normal behavior for your board?
2. As this is a Micrel PHY, perhaps you are affected by the changes in
the configuration defaults in commit bcf3440c6dd78bfe ("net: phy:
micrel: add phy-mode support for the KSZ9031 PHY")?
See also the performance drop figures in the description of quick fix
9b23203c32ee02cd ("ravb: Mask PHY mode to avoid inserting delays twice")
(and better solution
https://lore.kernel.org/linux-renesas-soc/20201001101008.14365-1-geert+renesas@xxxxxxxxx)
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
