linux-kernel - Re: [RFC PATCH 0/4] Add support for QMC HDLC and PHY

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Message-ID: <277bcf23-146a-4fb0-b57d-5545770b5db2@lunn.ch>
Date:   Thu, 20 Apr 2023 22:41:27 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Herve Codina <herve.codina@...tlin.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, Vinod Koul <vkoul@...nel.org>,
        Kishon Vijay Abraham I <kishon@...nel.org>,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        linux-phy@...ts.infradead.org,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: Re: [RFC PATCH 0/4] Add support for QMC HDLC and PHY

> I can move to a basic framer abstraction as you suggested. At least:
> - devm_of_framer_optional_get()
> - devm_framer_create()
> - framer_notifier_register() or something similar.
> 
> Where do you expect to see this framer abstraction and the pef2256
> framer part ?
> driver/net/wan/framer/, other place ?

That seems like a good location.

> I think driver/net/wan/framer/ can be a good place to start as only HDLC
> will use this abstraction.

> I can use the framer abstraction from the QMC HDLC driver itself or try
> to move it to the HDLC core. Do you think it will be interesting to have
> it move to the HDLC core ?

Having it in the core would be nice. But i don't know that code, so i
cannot say how easy/hard it will be do to. hdlc.c already seems to
have some code for carrier. So you need to be careful not to break
that.

	Andrew