tree 7ced19dfa3174b7476d3cb719c9583df650bc7ee
parent 4c042a80c1776477d8f13d0b214809a2eaedf01d
author Paul Greenwalt <paul.greenwalt@intel.com> 1489398476 -0400
committer Jeff Kirsher <jeffrey.t.kirsher@intel.com> 1493431351 -0700

ixgbe: Acquire PHY semaphore before device reset

A recent firmware change fixed an issue to acquire the PHY semaphore before
accessing PHY registers. This led to a case where  SW can issue a device
reset clearing the MDIO registers. This patch makes SW acquire the PHY
semaphore before issuing a device reset.

Signed-off-by: Paul Greenwalt <paul.greenwalt@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>