linux-kernel - Re: [PATCH net-next v1] net: phy: tja11xx: execute cable test on link up

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Message-Id: <20200515.110327.618691695451535144.davem@davemloft.net>
Date:   Fri, 15 May 2020 11:03:27 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     o.rempel@...gutronix.de
Cc:     andrew@...n.ch, f.fainelli@...il.com, hkallweit1@...il.com,
        kernel@...gutronix.de, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, marex@...x.de, david@...tonic.nl
Subject: Re: [PATCH net-next v1] net: phy: tja11xx: execute cable test on
 link up

From: Oleksij Rempel <o.rempel@...gutronix.de>
Date: Thu, 14 May 2020 21:42:18 +0200

> A typical 100Base-T1 link should be always connected. If the link is in
> a shot or open state, it is a failure. In most cases, we won't be able
> to automatically handle this issue, but we need to log it or notify user
> (if possible).
> 
> With this patch, the cable will be tested on "ip l s dev .. up" attempt
> and send ethnl notification to the user space.
> 
> This patch was tested with TJA1102 PHY and "ethtool --monitor" command.
> 
> Signed-off-by: Oleksij Rempel <o.rempel@...gutronix.de>

Applied, thanks.