netdev - Re: [PATCH v3 net-next 10/17] net: dsa: sja1105: Build a minimal understanding of meta frames

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Message-ID: <12eaf60b-83e9-dd93-dd93-56a19158d307@gmail.com>
Date:   Tue, 4 Jun 2019 14:00:04 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Vladimir Oltean <olteanv@...il.com>, vivien.didelot@...il.com,
        andrew@...n.ch, davem@...emloft.net, richardcochran@...il.com,
        john.stultz@...aro.org, tglx@...utronix.de, sboyd@...nel.org
Cc:     linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH v3 net-next 10/17] net: dsa: sja1105: Build a minimal
 understanding of meta frames



On 6/4/2019 10:07 AM, Vladimir Oltean wrote:
> Meta frames are sent on the CPU port by the switch if RX timestamping is
> enabled. They contain a partial timestamp of the previous frame.
> 
> They are Ethernet frames with the Ethernet header constructed out of:
> 
> - SJA1105_META_DMAC
> - SJA1105_META_SMAC
> - ETH_P_SJA1105_META
> 
> The Ethernet payload will be decoded in a follow-up patch.
> 
> Signed-off-by: Vladimir Oltean <olteanv@...il.com>

Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
-- 
Florian