netdev - Re: [PATCH v2] net: ocelot: fix wrong time

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Message-ID: <20220526204225.03b7804c@kernel.org>
Date:   Thu, 26 May 2022 20:42:25 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Clément Léger <clement.leger@...tlin.com>
Cc:     Vladimir Oltean <vladimir.oltean@....com>,
        Andrew Lunn <andrew@...n.ch>,
        Pavel Skripkin <paskripkin@...il.com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        "alexandre.belloni@...tlin.com" <alexandre.belloni@...tlin.com>,
        "UNGLinuxDriver@...rochip.com" <UNGLinuxDriver@...rochip.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] net: ocelot: fix wrong time_after usage

On Mon, 23 May 2022 16:00:04 +0200 Clément Léger wrote:
> > If you're looking at me, I don't have the hardware to test, sorry.
> > Frame DMA is one of the components NXP removed when building their DSA
> > variants of these switches. But the function is called once or twice per
> > NAPI poll cycle, so it's worth optimizing as much as possible.
> > 
> > Clement, could you please do some testing? The patch that Andrew is
> > talking about is 35da1dfd9484 ("net: dsa: mv88e6xxx: Improve performance
> > of busy bit polling").  
> 
> Ok, I'll have to wake up that ocelot board but I'll try to do that.

We can't hold it in PW for much longer, please repost once tested.