REG_MB_RXD_RD_IDX
regs_buff[36] = ATL2_READ_REG(hw, REG_MB_RXD_RD_IDX);
ATL2_WRITE_REGW(hw, REG_MB_RXD_RD_IDX, (u16)adapter->rxd_read_ptr);
ATL2_WRITE_REGW(&adapter->hw, REG_MB_RXD_RD_IDX, adapter->rxd_read_ptr);