linux-kernel - RE: [PATCH v2 1/3] crypto: permit users to specify numa node of acomp hardware

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Date:   Fri, 3 Jul 2020 04:36:40 +0000
From:   "Song Bao Hua (Barry Song)" <song.bao.hua@...ilicon.com>
To:     Herbert Xu <herbert@...dor.apana.org.au>
CC:     "davem@...emloft.net" <davem@...emloft.net>,
        "Wangzhou (B)" <wangzhou1@...ilicon.com>,
        Jonathan Cameron <jonathan.cameron@...wei.com>,
        "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
        "linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Linuxarm <linuxarm@...wei.com>,
        Seth Jennings <sjenning@...hat.com>,
        Dan Streetman <ddstreet@...e.org>,
        Vitaly Wool <vitaly.wool@...sulko.com>
Subject: RE: [PATCH v2 1/3] crypto: permit users to specify numa node of
 acomp hardware



> -----Original Message-----
> From: Herbert Xu [mailto:herbert@...dor.apana.org.au]
> Sent: Friday, July 3, 2020 4:11 PM
> To: Song Bao Hua (Barry Song) <song.bao.hua@...ilicon.com>
> Cc: davem@...emloft.net; Wangzhou (B) <wangzhou1@...ilicon.com>;
> Jonathan Cameron <jonathan.cameron@...wei.com>;
> akpm@...ux-foundation.org; linux-crypto@...r.kernel.org;
> linux-mm@...ck.org; linux-kernel@...r.kernel.org; Linuxarm
> <linuxarm@...wei.com>; Seth Jennings <sjenning@...hat.com>; Dan
> Streetman <ddstreet@...e.org>; Vitaly Wool <vitaly.wool@...sulko.com>
> Subject: Re: [PATCH v2 1/3] crypto: permit users to specify numa node of
> acomp hardware
> 
> On Tue, Jun 23, 2020 at 04:16:08PM +1200, Barry Song wrote:
> >
> > -void *crypto_create_tfm(struct crypto_alg *alg,
> > -			const struct crypto_type *frontend)
> > +void *crypto_create_tfm_node(struct crypto_alg *alg,
> > +			const struct crypto_type *frontend,
> > +			int node)
> >  {
> >  	char *mem;
> >  	struct crypto_tfm *tfm = NULL;
> > @@ -451,6 +452,7 @@ void *crypto_create_tfm(struct crypto_alg *alg,
> >
> >  	tfm = (struct crypto_tfm *)(mem + tfmsize);
> >  	tfm->__crt_alg = alg;
> > +	tfm->node = node;
> 
> Should the kzalloc also use node?

Yes, it would be nice since the tfm will mainly be accessed by CPU on the specific node.

> 
> Thanks,
> --
> Email: Herbert Xu <herbert@...dor.apana.org.au>
> Home Page: http://gondor.apana.org.au/~herbert/
> PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt

Thanks
Barry