On 8/1/17 9:58 PM, Andrew Lunn wrote:
The PHY does not participate directly in flow control/pause frames except by
making sure that the SUPPORTED_Pause and SUPPORTED_AsymPause bits are set in
MII_ADVERTISE to indicate towards the link partner that the Ethernet MAC
controller supports such a thing. Since flow control/pause frames generation
involves the Ethernet MAC driver, it is recommended that this driver takes
care
of properly indicating advertisement and support for such features by setting
the SUPPORTED_Pause and SUPPORTED_AsymPause bits accordingly. This can be done
either before or after phy_connect() and/or as a result of implementing the
ethtool::set_pauseparam feature.
So just check if the MAC driver is setting SUPPORTED_Pause and
SUPPORTED_AsymPause.
I think this was covered in this thread:
http://www.spinics.net/lists/netdev/msg408978.html
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