linux-kernel - RE: [PATCH 00/20] ethernet: ucc_geth: assorted fixes and simplifications

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Date:   Tue, 8 Dec 2020 03:07:02 +0000
From:   Qiang Zhao <qiang.zhao@....com>
To:     Rasmus Villemoes <rasmus.villemoes@...vas.dk>,
        Jakub Kicinski <kuba@...nel.org>
CC:     Leo Li <leoyang.li@....com>,
        "David S. Miller" <davem@...emloft.net>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        Vladimir Oltean <vladimir.oltean@....com>
Subject: RE: [PATCH 00/20] ethernet: ucc_geth: assorted fixes and
 simplifications

On 06/12/2020 05:12, Rasmus Villemoes <rasmus.villemoes@...vas.dk> wrote:


> -----Original Message-----
> From: Rasmus Villemoes <rasmus.villemoes@...vas.dk>
> Sent: 2020年12月6日 5:12
> To: Jakub Kicinski <kuba@...nel.org>
> Cc: Leo Li <leoyang.li@....com>; David S. Miller <davem@...emloft.net>;
> Qiang Zhao <qiang.zhao@....com>; netdev@...r.kernel.org;
> linuxppc-dev@...ts.ozlabs.org; linux-kernel@...r.kernel.org;
> linux-arm-kernel@...ts.infradead.org; Vladimir Oltean
> <vladimir.oltean@....com>
> Subject: Re: [PATCH 00/20] ethernet: ucc_geth: assorted fixes and
> simplifications
> 
> On 05/12/2020 21.53, Jakub Kicinski wrote:
> > On Sat,  5 Dec 2020 20:17:23 +0100 Rasmus Villemoes wrote:
> >> While trying to figure out how to allow bumping the MTU with the
> >> ucc_geth driver, I fell into a rabbit hole and stumbled on a whole
> >> bunch of issues of varying importance - some are outright bug fixes,
> >> while most are a matter of simplifying the code to make it more
> >> accessible.
> >>
> >> At the end of digging around the code and data sheet to figure out
> >> how it all works, I think the MTU issue might be fixed by a
> >> one-liner, but I'm not sure it can be that simple. It does seem to
> >> work (ping -s X works for larger values of X, and wireshark confirms
> >> that the packets are not fragmented).
> >>
> >> Re patch 2, someone in NXP should check how the hardware actually
> >> works and make an updated reference manual available.
> >
> > Looks like a nice clean up on a quick look.
> >
> > Please separate patches 1 and 11 (which are the two bug fixes I see)
> 
> I think patch 2 is a bug fix as well, but I'd like someone from NXP to comment.

It 's ok for me.


Best Regards,
Qiang Zhao