linux-kernel - Re: [PATCH v3 4/5] net: hpe: Add GXP UMAC Driver

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Message-ID: <729dcda6-2d2c-4054-a570-17cdf6e4e57b@lunn.ch>
Date:   Mon, 4 Sep 2023 05:58:05 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     "Hawkins, Nick" <nick.hawkins@....com>
Cc:     "christophe.jaillet@...adoo.fr" <christophe.jaillet@...adoo.fr>,
        "simon.horman@...igine.com" <simon.horman@...igine.com>,
        "Verdun, Jean-Marie" <verdun@....com>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "edumazet@...gle.com" <edumazet@...gle.com>,
        "kuba@...nel.org" <kuba@...nel.org>,
        "pabeni@...hat.com" <pabeni@...hat.com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "krzysztof.kozlowski+dt@...aro.org" 
        <krzysztof.kozlowski+dt@...aro.org>,
        "conor+dt@...nel.org" <conor+dt@...nel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 4/5] net: hpe: Add GXP UMAC Driver

> I have been trying to figure out how exactly I can translate the current code
> over to using the page pool api over the past week. It seems like it is quiet
> a complex change. As the driver seems to be keeping up with our
> performance requirements would it be acceptable to mark this as a

Its not just performance. Using well debugged and shared core code
means less bugs in your driver. It makes maintenance simpler since
there are more people who understand the page pool code than what you
have in your driver and it makes your driver more like other drivers.

So overall you will end up with a better quality driver by adapting
the page pool code.

    Andrew