linux-kernel - Re: [net-next PATCH v4 00/14] net: dsa: qca8k: code split for qca8k

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Date:   Tue, 26 Jul 2022 03:22:10 +0300
From:   Vladimir Oltean <olteanv@...il.com>
To:     Christian Marangi <ansuelsmth@...il.com>
Cc:     Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Tom Rix <trix@...hat.com>, Jens Axboe <axboe@...nel.dk>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        llvm@...ts.linux.dev
Subject: Re: [net-next PATCH v4 00/14] net: dsa: qca8k: code split for qca8k

On Sun, Jul 24, 2022 at 10:19:24PM +0200, Christian Marangi wrote:
> This is needed ad ipq4019 SoC have an internal switch that is
> based on qca8k with very minor changes. The general function is equal.
> 
> Because of this we split the driver to common and specific code.
> 
> As the common function needs to be moved to a different file to be
> reused, we had to convert every remaining user of qca8k_read/write/rmw
> to regmap variant.
> We had also to generilized the special handling for the ethtool_stats
> function that makes use of the autocast mib. (ipq4019 will have a
> different tagger and use mmio so it could be quicker to use mmio instead
> of automib feature)
> And we had to convert the regmap read/write to bulk implementation to
> drop the special function that makes use of it. This will be compatible
> with ipq4019 and at the same time permits normal switch to use the eth
> mgmt way to send the entire ATU table read/write in one go.

I'm done reviewing v4, from my side you can consider addressing the
style comments as well as the comment on patch 1 from v3 and you can
resend.