When you choose Reporting Services as the data source, the next step of the wizard displays as illustrated in the following figure.
To connect to a Reporting Services report:
1. Enter the Server Path and click Connect.
2. In SharePoint Site, select the SharePoint site where the report is located.
3. In Reports, select a report.
4. In Report Snapshots,select a snapshot. If you want the snapshot to refresh every set amount of time, specify the number of minutes in Invalidate Data Cache After.
5. In the parameters area, enter the parameters and values you want to pass to the view.