RE: [EXT] Re: [PATCH net] net: phylink: fix link state on phy-connect

[Yan Markman]

The phylink_stop is called before phylink_disconnect_phy
You could see in mvpp2.c:

mvpp2_stop_dev() {
	phylink_stop(port->phylink); 
}

mvpp2_stop()       { 
	mvpp2_stop_dev(port);
	phylink_disconnect_phy(port->phylink);
}

.ndo_stop = mvpp2_stop,

-----Original Message-----
From: Russell King - ARM Linux [mailto:linux@xxxxxxxxxxxxxxx] 
Sent: Wednesday, November 29, 2017 11:21 PM
To: Yan Markman <ymarkman@xxxxxxxxxxx>
Cc: Antoine Tenart <antoine.tenart@xxxxxxxxxxxxxxxxxx>; andrew@xxxxxxx; f.fainelli@xxxxxxxxx; davem@xxxxxxxxxxxxx; gregory.clement@xxxxxxxxxxxxxxxxxx; thomas.petazzoni@xxxxxxxxxxxxxxxxxx; miquel.raynal@xxxxxxxxxxxxxxxxxx; Nadav Haklai <nadavh@xxxxxxxxxxx>; mw@xxxxxxxxxxxx; Stefan Chulski <stefanc@xxxxxxxxxxx>; netdev@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx
Subject: Re: [EXT] Re: [PATCH net] net: phylink: fix link state on phy-connect

On Wed, Nov 29, 2017 at 09:06:56PM +0000, Yan Markman wrote:
> The attached p21 patch doesn't change anything.
> But another one from the mail-text is good
> 	void phylink_disconnect_phy(struct phylink *pl)
> 	+		pl->phy_state.link = false;
> 
> There still (not for my MRVL-PP2) problem:
> 	It is expected that on  ifconfig-down the callback
> 		pl->ops->mac_link_down(ndev, pl->link_an_mode); would be called, but 
> it isn't

Are you calling phylink_stop() or are you just calling phylink_disconnect() ?

You must call phylink_stop() prior to phylink_disconnect().  This probably explains why the p21 patch did nothing.

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