linux-kernel - Re: [PATCH net v1 3/6] net: dsa: microchip: ksz8: fix offset for the timestamp filed

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Message-ID: <47e5a49ed1d09a529945e4c39be5da2c6cee86ed.camel@microchip.com>
Date:   Fri, 24 Mar 2023 03:58:20 +0000
From:   <Arun.Ramadoss@...rochip.com>
To:     <olteanv@...il.com>, <andrew@...n.ch>, <f.fainelli@...il.com>,
        <kuba@...nel.org>, <edumazet@...gle.com>, <pabeni@...hat.com>,
        <o.rempel@...gutronix.de>, <Woojung.Huh@...rochip.com>,
        <davem@...emloft.net>
CC:     <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>,
        <UNGLinuxDriver@...rochip.com>, <kernel@...gutronix.de>
Subject: Re: [PATCH net v1 3/6] net: dsa: microchip: ksz8: fix offset for the
 timestamp filed

Hi Oleksij,

On Wed, 2023-03-22 at 15:31 +0100, Oleksij Rempel wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you
> know the content is safe
> 
> We are using wrong offset, so we will get not a timestamp.
> 
> Fixes: d23a5e18606c ("net: dsa: microchip: move ksz8->masks to
> ksz_common")
> Signed-off-by: Oleksij Rempel <o.rempel@...gutronix.de>
> ---
>  drivers/net/dsa/microchip/ksz_common.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/dsa/microchip/ksz_common.c
> b/drivers/net/dsa/microchip/ksz_common.c
> index 3a1afc9f4621..c914449645ca 100644
> --- a/drivers/net/dsa/microchip/ksz_common.c
> +++ b/drivers/net/dsa/microchip/ksz_common.c
> @@ -423,7 +423,7 @@ static u8 ksz8863_shifts[] = {
>         [DYNAMIC_MAC_ENTRIES_H]         = 8,
>         [DYNAMIC_MAC_ENTRIES]           = 24,
>         [DYNAMIC_MAC_FID]               = 16,
> -       [DYNAMIC_MAC_TIMESTAMP]         = 24,
> +       [DYNAMIC_MAC_TIMESTAMP]         = 22,

Cross verified the bit mask with datasheet. 
Patch looks good to me.

Acked-by: Arun Ramadoss <arun.ramadoss@...rochip.com>

>         [DYNAMIC_MAC_SRC_PORT]          = 20,
>  };
> 
> --
> 2.30.2
>