netdev - Re: [PATCH] gianfar: Add gfar_change

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Date:   Fri, 7 Dec 2018 18:26:31 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Joakim Tjernlund <Joakim.Tjernlund@...inera.com>
Cc:     "claudiu.manoil@....com" <claudiu.manoil@....com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: [PATCH] gianfar: Add gfar_change_carrier()

> Would you be happier if .ndo_change_carrier() only acted on Fixed PHYs?

I think it makes sense to allow a fixed phy carrier to be changed from
user space. However, i don't think you can easily plumb that to
.ndo_change_carrier(), since that is a MAC feature. You need to change
the fixed_phy_status to indicate the PHY has lost link, and then let
the usual mechanisms tell the MAC it is down and change the carrier
status.

	Andrew