netdev - Re: [PATCH RFC net-next 3/3] net: dsa: mv88e6xxx: setup SERDES irq also for CPU/DSA ports

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Message-ID: <20190817201552.06c39d3e@nic.cz>
Date:   Sat, 17 Aug 2019 20:15:52 +0200
From:   Marek Behun <marek.behun@....cz>
To:     Vivien Didelot <vivien.didelot@...il.com>
Cc:     netdev@...r.kernel.org, Andrew Lunn <andrew@...n.ch>,
        Vladimir Oltean <olteanv@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>
Subject: Re: [PATCH RFC net-next 3/3] net: dsa: mv88e6xxx: setup SERDES irq
 also for CPU/DSA ports

On Sat, 17 Aug 2019 20:03:42 +0200
Marek Behun <marek.behun@....cz> wrote:

> One way would be to rename the mv88e6xxx_setup_port function to
> mv88e6xxx_setup_port_regs, or mv88e6xxx_port_pre_setup, or something
> like that. Would the names mv88e6xxx_port_setup and
> mv88e6xxx_setup_port_regs still be very confusing and error prone?
> I think maybe yes...
> 
> Other solution would be to, instead of the .port_setup()
> and .port_teardown() DSA ops, create the .after_setup()
> and .before_teardown() ops I mentioned in the previous mail.
> 
> And yet another (in my opinion very improper) solution could be that
> the .setup() method could call dsa_port_setup() from within itself, to
> ensure that the needed structres exist.

I thought of another solution, one that does not need new DSA
operations. What if dsa_port_enable was called for CPU/DSA ports after
in dsa_port_setup_switches, after all ports are setup, and
dsa_port_disable called for CPU/DSA ports in dsa_port_teardown_switches?

This seems to me as cleaner solution.

Marek