netdev - RE: [RFC/PATCH 04/18] ravb: Enable aligned_tx and tx

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Date:   Sun, 26 Sep 2021 13:40:51 +0000
From:   Biju Das <biju.das.jz@...renesas.com>
To:     Biju Das <biju.das.jz@...renesas.com>,
        Sergey Shtylyov <s.shtylyov@....ru>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
CC:     Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@...renesas.com>,
        Andrew Lunn <andrew@...n.ch>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Adam Ford <aford173@...il.com>,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-renesas-soc@...r.kernel.org" 
        <linux-renesas-soc@...r.kernel.org>,
        Chris Paterson <Chris.Paterson2@...esas.com>,
        Biju Das <biju.das@...renesas.com>
Subject: RE: [RFC/PATCH 04/18] ravb: Enable aligned_tx and tx_counters for
 RZ/G2L

Hi Sergei,

> Subject: RE: [RFC/PATCH 04/18] ravb: Enable aligned_tx and tx_counters for
> RZ/G2L
> 
> Hi Sergei,
> 
> Thanks for the review.
> 
> > Subject: Re: [RFC/PATCH 04/18] ravb: Enable aligned_tx and tx_counters
> > for RZ/G2L
> >
> > On 9/23/21 5:07 PM, Biju Das wrote:
> >
> >    Somehow this patch haven't reached my OMP email -- I got it only
> > thru the linux-renesas-soc list... :-/
> >
> > > RZ/G2L need 4byte address alignment like R-Car Gen2 and it has
> > > tx_counters like R-Car Gen3. This patch enable these features for
> > > RZ/G2L.
> > >
> > > Signed-off-by: Biju Das <biju.das.jz@...renesas.com>
> > > ---
> > >  drivers/net/ethernet/renesas/ravb.h      | 2 +-
> > >  drivers/net/ethernet/renesas/ravb_main.c | 2 ++
> > >  2 files changed, 3 insertions(+), 1 deletion(-)
> > >
> > > diff --git a/drivers/net/ethernet/renesas/ravb.h
> > > b/drivers/net/ethernet/renesas/ravb.h
> > > index bee05e6fb815..bb92469d770e 100644
> > > --- a/drivers/net/ethernet/renesas/ravb.h
> > > +++ b/drivers/net/ethernet/renesas/ravb.h
> > > @@ -195,7 +195,7 @@ enum ravb_reg {
> > >  	GECMR	= 0x05b0,
> > >  	MAHR	= 0x05c0,
> > >  	MALR	= 0x05c8,
> > > -	TROCR	= 0x0700,	/* R-Car Gen3 only */
> > > +	TROCR	= 0x0700,	/* R-Car Gen3 and RZ/G2L only */
> > >  	CEFCR	= 0x0740,
> > >  	FRECR	= 0x0748,
> > >  	TSFRCR	= 0x0750,
> > > diff --git a/drivers/net/ethernet/renesas/ravb_main.c
> > > b/drivers/net/ethernet/renesas/ravb_main.c
> > > index 54c4d31a6950..d38fc33a8e93 100644
> > > --- a/drivers/net/ethernet/renesas/ravb_main.c
> > > +++ b/drivers/net/ethernet/renesas/ravb_main.c
> > > @@ -2114,6 +2114,8 @@ static const struct ravb_hw_info rgeth_hw_info =
> {
> > >  	.set_feature = ravb_set_features_rgeth,
> > >  	.dmac_init = ravb_dmac_init_rgeth,
> > >  	.emac_init = ravb_rgeth_emac_init,
> > > +	.aligned_tx = 1,
> > > +	.tx_counters = 1,
> >
> >    Mhm, I don't see a connection between those 2 (other than they're
> > both for RX). And anyway, this prolly should be a part of the previous
> patch...
> 
> There was a discussion to make smaller patches. If there is no objection,
> on the next revision I will add this as part of previous patch.
> 

Thanks, As discussed, I have merged this with previous patch, as it is trivial change.

Regards,
Biju