Wei Dai c70a162ad4 net/ixgbe/base: 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: Wei Dai <wei.dai@intel.com>
Tested-by: Yuan Peng <yuan.peng@intel.com>
2017-04-28 14:46:16 +02:00
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