linux-kernel - Re: [PATCH v2 0/2] Add MHI Endpoint network driver

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Message-ID: <20231127084639.6be47207@kernel.org>
Date:   Mon, 27 Nov 2023 08:46:39 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Cc:     davem@...emloft.net, edumazet@...gle.com, pabeni@...hat.com,
        mhi@...ts.linux.dev, linux-arm-msm@...r.kernel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        loic.poulain@...aro.org
Subject: Re: [PATCH v2 0/2] Add MHI Endpoint network driver

On Mon, 27 Nov 2023 11:34:39 +0530 Manivannan Sadhasivam wrote:
> I think you made up your mind that this driver is exposing the network interface
> to the firmware on the device. I ought to clearify that the device running this
> driver doesn't necessarily be a modem but a PCIe endpoint instance that uses the
> netdev exposed by this driver to share data connectivity with another device.

Doesn't matter how many legit use cases you can come up with.
Using netdev as a device comm channel is something I am
fundamentally opposed to.

> This concept is not new and being supported by other protocols such as Virtio
> etc...

Yes. Use virtio, please.