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From:   Mickey Rachamim <mickeyr@marvell.com>
To:     Jakub Kicinski <kuba@kernel.org>,
        Vadym Kochan <vadym.kochan@plvision.eu>
CC:     Andrew Lunn <andrew@lunn.ch>,
        Tobias Waldekranz <tobias@waldekranz.com>,
        "David S. Miller" <davem@davemloft.net>,
        "netdev@vger.kernel.org" <netdev@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Vladimir Oltean <vladimir.oltean@nxp.com>
Subject: RE: [EXT] Re: [PATCH net-next 5/7] net: marvell: prestera: add LAG
 support
Thread-Topic: [EXT] Re: [PATCH net-next 5/7] net: marvell: prestera: add LAG
 support
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Date:   Tue, 9 Feb 2021 20:31:32 +0000
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Hi Andrew, Jakub, Tobias,

On Tuesday, February 9, 2021 7:35 PM Jakub Kicinski wrote:
> Sounds like we have 3 people who don't like FW-heavy designs dominating t=
he kernel - this conversation can only go one way.=20
> Marvell, Plvision anything to share? AFAIU the values of Linux kernel are=
 open source, healthy community, empowering users. With the SDK on the embe=
dded CPU your driver does not seem to tick any of these boxes.

I'll try to share Marvell's insight and plans regarding our Prestera driver=
s;
=20
We do understand the importance and the vision behind the open-source commu=
nity - while being committed to quality, functionality and the developers/e=
nd-users.

We started working on the Prestera driver in Q2 2019. it took us more than =
a year to get the first approved driver into 5.10, and we just started.
Right at the beginning - we implemented PP function into the Kernel driver =
like the SDMA operation (This is the RX/TX DMA engine).=20
Yet, the FW itself - is an SW package that supports many Marvell Prestera S=
witching families of devices - this is a significant SW package that will t=
ake many working years to adapt to the Kernel environment.
We do plan to port more and more PP functions as Kernel drivers along the w=
ay.
=20
We also are working with the community to extend Kernel functionality with =
a new feature beneficial to all Kernel users (e.g. Devlink changes) and we =
will continue to do it.
By extending the Prestera driver to in-kernel implementation with more PP f=
eatures - we will simplify the FW logic and enables cost-effective solution=
s to the market/developers.

Regards,
Mickey.