linux-kernel - Re: [RFC PATCH net-next 1/6] net: ethernet: implement OPEN Alliance control transaction interface

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Date:   Wed, 20 Sep 2023 15:37:05 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Parthiban.Veerasooran@...rochip.com
Cc:     davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        corbet@....net, Steen.Hegelund@...rochip.com,
        rdunlap@...radead.org, horms@...nel.org, casper.casan@...il.com,
        netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
        Horatiu.Vultur@...rochip.com, Woojung.Huh@...rochip.com,
        Nicolas.Ferre@...rochip.com, UNGLinuxDriver@...rochip.com,
        Thorsten.Kummermehr@...rochip.com, Ciprian.Regus@...log.com,
        jtm@...ingdog.com
Subject: Re: [RFC PATCH net-next 1/6] net: ethernet: implement OPEN Alliance
 control transaction interface

> Ah ok, I think there is a misunderstanding here. This is related to OPEN 
> Alliance protocol. Control transactions consist of one or more control 
> commands. Control commands are used by the SPI host to read and write 
> registers within the MAC-PHY. Each control commands are composed of a 
> 32-bit control command header followed by register data. WNR (write not 
> read) bit in the control command header indicates if data is to be 
> written to registers (when set) or read from registers (when clear). so 
> basically it indicates the type of the control command on the registers.

OK, so this clearly indicates the names are bad and documentation is
missing if i got this completely wrong. Adding kerneldoc to these
functions should help.

	Andrew