linux-kernel - Re: [PATCH net-next v3 18/19] net: ravb: Do not apply RX CSUM settings to hardware if the interface is down

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Message-ID: <16361de1-5f90-01e6-7a4a-8faacc0fa056@omp.ru>
Date: Mon, 8 Jan 2024 23:49:29 +0300
From: Sergey Shtylyov <s.shtylyov@....ru>
To: Claudiu <claudiu.beznea@...on.dev>, <davem@...emloft.net>,
	<edumazet@...gle.com>, <kuba@...nel.org>, <pabeni@...hat.com>,
	<richardcochran@...il.com>, <p.zabel@...gutronix.de>,
	<yoshihiro.shimoda.uh@...esas.com>, <wsa+renesas@...g-engineering.com>
CC: <netdev@...r.kernel.org>, <linux-renesas-soc@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <geert+renesas@...der.be>, Claudiu Beznea
	<claudiu.beznea.uj@...renesas.com>
Subject: Re: [PATCH net-next v3 18/19] net: ravb: Do not apply RX CSUM
 settings to hardware if the interface is down

On 1/5/24 11:23 AM, Claudiu wrote:

> From: Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
> 
> Do not apply the RX CSUM settings to hardware if the interface is down. In

   s/CSUM/checksum/?

> 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 registers content) and applying
> settings in reset mode is not an option. Instead, cache the RX CSUM

   Same here...

> settings and apply them in ravb_open() though ravb_emac_init().

   Through?

> Commit prepares for the addition of runtime PM.
> 
> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
[...]

MBR, Sergey