linux-kernel - RE: [EXT] Re: [PATCH net-next v1] octeon_ep: control net API framework to support offloads

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Message-ID: <PH0PR18MB4734DF93FA905F7160AAE23EC786A@PH0PR18MB4734.namprd18.prod.outlook.com>
Date:   Mon, 4 Dec 2023 06:39:14 +0000
From:   Shinas Rasheed <srasheed@...vell.com>
To:     Jakub Kicinski <kuba@...nel.org>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Haseeb Gani <hgani@...vell.com>,
        Vimlesh Kumar <vimleshk@...vell.com>,
        "egallen@...hat.com" <egallen@...hat.com>,
        "mschmidt@...hat.com" <mschmidt@...hat.com>,
        "pabeni@...hat.com" <pabeni@...hat.com>,
        "horms@...nel.org" <horms@...nel.org>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "wizhao@...hat.com" <wizhao@...hat.com>,
        "konguyen@...hat.com" <konguyen@...hat.com>,
        Veerasenareddy Burru <vburru@...vell.com>,
        Sathesh B Edara <sedara@...vell.com>,
        Eric Dumazet <edumazet@...gle.com>
Subject: RE: [EXT] Re: [PATCH net-next v1] octeon_ep: control net API
 framework to support offloads



> -----Original Message-----
> From: Jakub Kicinski <kuba@...nel.org>
> Sent: Saturday, December 2, 2023 9:29 AM
> To: Shinas Rasheed <srasheed@...vell.com>
> > +static netdev_features_t octep_fix_features(struct net_device *dev,
> > +					    netdev_features_t features)
> > +{
> > +	return (dev->hw_features & features);
> > +}
> 
> Why is this needed? The core kernel should already make sure
> unsupported features aren't requested.

Yes that is correct. I also don't see an interdependency between features to decide anything in this function currently, so I think perhaps fix features can be implemented later on or even just return the obtained features itself I guess. I'll submit an updated patch set. Any other nits to update in the next version?