I40E_GLGEN_MSRWD
command = rd32(hw, I40E_GLGEN_MSRWD(port_num));
wr32(hw, I40E_GLGEN_MSRWD(port_num), command);
command = rd32(hw, I40E_GLGEN_MSRWD(port_num));
wr32(hw, I40E_GLGEN_MSRWD(port_num), command);