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

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Date:   Fri, 25 Aug 2023 18:54:18 +0000
From:   "Hawkins, Nick" <nick.hawkins@....com>
To:     Andrew Lunn <andrew@...n.ch>
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

Hi Andrew,

Thank you for pointing me at the correct repo to use. I was using the
incorrect one.

> Nope, not required at all. The FEC driver was first converted to page
> pool, and then XDP support added. The conversion to page pool made the
> driver faster, it could handle more packets per second. That is why i
> suggested using it, plus it means less driver code, which means less
> bugs.

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
TODO: for a future enhancement?

Thank you for the assistance,

-Nick Hawkins