netdev - RE: [PATCH net-next] nfp: ethtool: supplement nfp link modes supported

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Message-ID: <DM6PR13MB3705C4BB6A45461E6569C33CFCDD9@DM6PR13MB3705.namprd13.prod.outlook.com>
Date:   Mon, 13 Feb 2023 01:23:00 +0000
From:   Yinjun Zhang <yinjun.zhang@...igine.com>
To:     Leon Romanovsky <leon@...nel.org>,
        Simon Horman <simon.horman@...igine.com>
CC:     David Miller <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        oss-drivers <oss-drivers@...igine.com>,
        Macris Xiao <yu.xiao@...igine.com>
Subject: RE: [PATCH net-next] nfp: ethtool: supplement nfp link modes
 supported

On Sun, 12 Feb 2023 20:30:09 +0200, Leon Romanovsky wrote:
> On Fri, Feb 10, 2023 at 10:53:19AM +0100, Simon Horman wrote:
> > From: Yu Xiao <yu.xiao@...igine.com>
> >
> > Add support for the following modes to the nfp driver:
> >
> > 	NFP_MEDIA_10GBASE_LR
> > 	NFP_MEDIA_25GBASE_LR
> > 	NFP_MEDIA_25GBASE_ER
> >
> > These modes are supported by the hardware and,
> > support for them was recently added to firmware.
> 
> Is it backward compatible? Will it work if I run old FW?

Yes. The new ones are appended, not inserted.

> 
> Thanks