linux-kernel - Re: [EXTERNAL] Re: [PATCH net] net: ti: icssg-prueth: Fix r30 CMDs bitmasks

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Message-ID: <345f6891-0898-0bba-1d28-84b5aaaaeb08@ti.com>
Date:   Mon, 16 Oct 2023 10:18:55 +0530
From:   "Anwar, Md Danish" <a0501179@...com>
To:     Andrew Lunn <andrew@...n.ch>, MD Danish Anwar <danishanwar@...com>
CC:     Grygorii Strashko <grygorii.strashko@...com>,
        Roger Quadros <rogerq@...nel.org>,
        Simon Horman <horms@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        "David S. Miller" <davem@...emloft.net>,
        <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>,
        <srk@...com>, Vignesh Raghavendra <vigneshr@...com>,
        <r-gunasekaran@...com>
Subject: Re: [EXTERNAL] Re: [PATCH net] net: ti: icssg-prueth: Fix r30 CMDs
 bitmasks

Hi Andrew

On 10/13/2023 9:30 PM, Andrew Lunn wrote:
> On Fri, Oct 13, 2023 at 04:47:58PM +0530, MD Danish Anwar wrote:
>> The bitmask for EMAC_PORT_DISABLE and EMAC_PORT_FORWARD has been changed
>> in the latest ICSSG firmware.
>>
>> The current bitmasks are wrong and as a result EMAC_PORT_DISABLE and
>> EMAC_PORT_FORWARD commands do not work.
>> Update r30 commands to use the same bitmask as used by the latest ICSSG
>> firmware.
> 
> Please indicate in the commit message this is backwards compatible
> with old firmware. I assume it is actually backwards compatible.
> 

The bitmasks that are used in driver currently is not used in firmware
anymore. The latest ICSSG firmware is using different bitmasks and the
older bitmasks are no longer compatible with the latets ICSSG firmware.
So it is not backwards compatible. I'll mention this in commit message
once I post next revision.

>     Andrew
> 
> ---
> pw-bot: cr

-- 
Thanks and Regards,
Md Danish Anwar