[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID:
<TYCPR01MB112693D3BB55CB8CC91437B87864B2@TYCPR01MB11269.jpnprd01.prod.outlook.com>
Date: Fri, 9 Feb 2024 20:41:05 +0000
From: Biju Das <biju.das.jz@...renesas.com>
To: Sergey Shtylyov <s.shtylyov@....ru>, Claudiu.Beznea
<claudiu.beznea@...on.dev>, "davem@...emloft.net" <davem@...emloft.net>,
"edumazet@...gle.com" <edumazet@...gle.com>, "kuba@...nel.org"
<kuba@...nel.org>, "pabeni@...hat.com" <pabeni@...hat.com>
CC: "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
"linux-renesas-soc@...r.kernel.org" <linux-renesas-soc@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Claudiu Beznea
<claudiu.beznea.uj@...renesas.com>
Subject: RE: [PATCH net-next v2 4/5] net: ravb: Do not apply RX checksum
settings to hardware if the interface is down
Hi Sergey,
> -----Original Message-----
> From: Sergey Shtylyov <s.shtylyov@....ru>
> Sent: Friday, February 9, 2024 8:27 PM
> Subject: Re: [PATCH net-next v2 4/5] net: ravb: Do not apply RX checksum
> settings to hardware if the interface is down
>
> On 2/9/24 8:04 PM, Claudiu wrote:
>
> > From: Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
> >
> > Do not apply the RX checksum settings to hardware if the interface is
> down.
> > In case runtime PM is enabled, and while the interface is down, the IP
> > will be in reset mode (as for some platforms disabling the clocks will
> > switch the IP to reset mode, which will lead to losing register
> > contents) and applying settings in reset mode is not an option.
> > Instead, cache the RX checksum settings and apply them in ravb_open()
> through ravb_emac_init().
> > This has been solved by introducing pm_runtime_active() check. The
> > device runtime PM usage counter has been incremented to avoid
> > disabling the device clocks while the check is in progress (if any).
> >
> > Commit prepares for the addition of runtime PM.
> >
> > Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
>
> Reviewed-by: Sergey Shtylyov <s.shtylyov@....ru>
This will do the same job, without code duplication right?
static int ravb_set_features(struct net_device *ndev,
netdev_features_t features)
{
struct ravb_private *priv = netdev_priv(ndev);
struct device *dev = &priv->pdev->dev;
const struct ravb_hw_info *info = priv->info;
pm_runtime_get_noresume(dev);
if (!pm_runtime_active(dev)) {
pm_runtime_put_noidle(dev);
ndev->features = features;
return 0;
}
return info->set_feature(ndev, features);
}
Cheers,
Biju
Powered by blists - more mailing lists