netdev - Re: [PATCH v5 12/13] net: phy: adin: add ethtool get

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Message-ID: <20190816132434.GB307@lunn.ch>
Date:   Fri, 16 Aug 2019 15:24:34 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Alexandru Ardelean <alexandru.ardelean@...log.com>
Cc:     netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, davem@...emloft.net,
        robh+dt@...nel.org, mark.rutland@....com, f.fainelli@...il.com,
        hkallweit1@...il.com
Subject: Re: [PATCH v5 12/13] net: phy: adin: add ethtool get_stats support

On Fri, Aug 16, 2019 at 04:10:10PM +0300, Alexandru Ardelean wrote:
> This change implements retrieving all the error counters from the PHY.
> 
> The counters require that the RxErrCnt register (0x0014) be read first,
> after which copies of the counters are latched into the registers. This
> ensures that all registers read after RxErrCnt are synchronized at the
> moment that they are read.
> 
> The counter values need to be accumulated by the driver, as each time that
> RxErrCnt is read, the values that are latched are the ones that have
> incremented from the last read.
> 
> Signed-off-by: Alexandru Ardelean <alexandru.ardelean@...log.com>
 
Reviewed-by: Andrew Lunn <andrew@...n.ch>

    Andrew