c3fb605491
This patch uses the shared Management Data Input/output (MDIO) functions ixgbe_read_phy_reg_x550a and ixgbe_write_phy_reg_x550a for X550em_a 10G PHY which supports flow control auto-negotiation. Signed-off-by: Xiao Wang <xiao.w.wang@intel.com> Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>