netdev - Re: [EXT] Re: [PATCH v2 2/3] drivers: crypto: add support for OCTEONTX2 CPT engine

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Message-ID: <20200904183834.GS3112546@lunn.ch>
Date:   Fri, 4 Sep 2020 20:38:34 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Sunil Kovvuri Goutham <sgoutham@...vell.com>
Cc:     Herbert Xu <herbert@...dor.apana.org.au>,
        Srujana Challa <schalla@...vell.com>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>,
        Suheil Chandran <schandran@...vell.com>,
        Narayana Prasad Raju Athreya <pathreya@...vell.com>,
        Linu Cherian <lcherian@...vell.com>,
        Geethasowjanya Akula <gakula@...vell.com>,
        Jerin Jacob Kollanukkaran <jerinj@...vell.com>,
        Ard Biesheuvel <ardb@...nel.org>
Subject: Re: [EXT] Re: [PATCH v2 2/3] drivers: crypto: add support for
 OCTEONTX2 CPT engine

On Fri, Sep 04, 2020 at 04:36:29PM +0000, Sunil Kovvuri Goutham wrote:
> 
> 
> > -----Original Message-----
> > From: Herbert Xu <herbert@...dor.apana.org.au>
> > Sent: Friday, September 4, 2020 7:48 PM
> > To: Srujana Challa <schalla@...vell.com>
> > Cc: davem@...emloft.net; netdev@...r.kernel.org; linux-
> > crypto@...r.kernel.org; Suheil Chandran <schandran@...vell.com>;
> > Narayana Prasad Raju Athreya <pathreya@...vell.com>; Sunil Kovvuri
> > Goutham <sgoutham@...vell.com>; Linu Cherian <lcherian@...vell.com>;
> > Geethasowjanya Akula <gakula@...vell.com>; Jerin Jacob Kollanukkaran
> > <jerinj@...vell.com>; Ard Biesheuvel <ardb@...nel.org>
> > Subject: Re: [EXT] Re: [PATCH v2 2/3] drivers: crypto: add support for
> > OCTEONTX2 CPT engine
> > 
> > On Fri, Sep 04, 2020 at 02:14:34PM +0000, Srujana Challa wrote:
> > >
> > > Since LMT store is our platform specific, it cannot be generalized to all
> > ARM64.
> > 
> > I'm not asking you to generalise it to all of ARM64.  I'm asking you to move
> > this into a header file under arch/arm64 that can then be shared by both your
> > crypto driver and your network driver so you don't duplicate this
> > everywhere.
> > 
> 
> For ARM64 , except erratas other platform or machine dependent stuff are not allowed inside arch/arm64.
> Also an earlier attempt by us to add few APIs addressing 128bit operations were not allowed by ARM folks
> as they don't work in a generic way and are SOC specific.
> http://lkml.iu.edu/hypermail/linux/kernel/1801.3/02211.html

Maybe put it in include/linux/soc/ ?

      Andrew