netdev - Re: [PATCH net-next 4/4] net: dsa: sja1105: Rethink the PHYLINK callbacks

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Message-ID: <5d1efb1c-24f2-cbad-77d8-9bd76601a5b7@gmail.com>
Date:   Sat, 8 Jun 2019 19:55:47 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Vladimir Oltean <olteanv@...il.com>, vivien.didelot@...il.com,
        andrew@...n.ch, davem@...emloft.net
Cc:     netdev@...r.kernel.org
Subject: Re: [PATCH net-next 4/4] net: dsa: sja1105: Rethink the PHYLINK
 callbacks



On 6/8/2019 6:03 AM, Vladimir Oltean wrote:
> The first fact that needs to be stated is that the per-MAC settings in
> SJA1105 called EGRESS and INGRESS do *not* disable egress and ingress on
> the MAC. They only prevent non-link-local traffic from being
> sent/received on this port.
> 
> So instead of having .phylink_mac_config essentially mess with the STP
> state and force it to DISABLED/BLOCKING (which also brings useless
> complications in sja1105_static_config_reload), simply add the
> .phylink_mac_link_down and .phylink_mac_link_up callbacks which inhibit
> TX at the MAC level, while leaving RX essentially enabled.
> 
> Also stop from trying to put the link down in .phylink_mac_config, which
> is incorrect.
> 
> Signed-off-by: Vladimir Oltean <olteanv@...il.com>

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