This patch has fixes for link related issues with axgbe driver
Intermittently, some link issues observed with axgbe driver. By default,
axgbe driver does a receiver reset after predefined number of retries for the
link to come up. But intermittently, this receiver reset doesn't suffice.
In that case, as a workaround we need to reset the phy completely.
This patch introduces a sysctl where which can be set to reset the phy
completely, rather than just doing receiver reset.
This patch also has the necessary fixes for handling the direct attach cables