IAVF_VF_ARQBAL1
wr32(hw, IAVF_VF_ARQBAL1, lower_32_bits(hw->aq.arq.desc_buf.pa));
reg = rd32(hw, IAVF_VF_ARQBAL1);
wr32(hw, IAVF_VF_ARQBAL1, 0);