Re: Correct method for initializing Pause and Asymmetrical Pause support in phy drivers

On Thu, Jan 12, 2017 at 10:21:29AM -0500, Marc Bertola wrote:

Hello netdev list,

I am currently investigating a problem related to Ethernet
auto-negotiation of Pause and Asymmetrical Pause capabilities.

Hi Marc

Have you read:

commit 2fa3e25b454e267d8f55ee19c27be540495463e7
Author: Florian Fainelli [off-list ref]
Date:   Sun Nov 27 18:45:13 2016 -0800

    Documentation: net: phy: Add a paragraph about pause frames/flow control
    
    Describe that the Ethernet MAC controller is ultimately responsible for
    dealing with proper pause frames/flow control advertisement and
    enabling, and that it is therefore allowed to have it change
    phydev->supported/advertising with SUPPORTED_Pause and
    SUPPORTED_AsymPause.
    
    Reviewed-by: Martin Blumenstingl [off-list ref]
    Signed-off-by: Florian Fainelli [off-list ref]
    Signed-off-by: David S. Miller [off-list ref]

    Andrew