Re: [PATCH net-next 2/4] net: dsa: remove phy arg from port enable/disable

Hi Florian,

Florian Fainelli [off-list ref] writes:

On 09/22/2017 09:17 AM, Vivien Didelot wrote:

quoted

The .port_enable and .port_disable functions are meant to deal with the
switch ports only, and no driver is using the phy argument anyway.
Remove it.

I don't think this makes sense, there are perfectly legit reasons why a
switch driver may have something to do with the PHY device attached to
its per-port network interface, we should definitively keep that around,
unless you think we should be accessing the PHY within the switch
drivers by doing:

struct phy_device *phydev = ds->ports[port].netdev->phydev?

bcm_sf2 is the only user for this phy argument right now. The reason I'm
doing this is because I prefer to discourage switch drivers to dig into
the phy device themselves while as you said there must be a cleaner
solution. This must be handled somehow elsewhere in the stack.

In the meantime, moving the PHY device up to the dsa_port structure is a
good solution, in order not to expose it in switch ops, but still make
it available to more complex drivers.

Do you know if netdev->phydev is usable? Why do DSA has its own copy in
dsa_slave_priv then?


I'll respin, thanks.

    Vivien