This article explains how to install SQL Server 2012 Reporting Services Add-in for SharePoint 2010 and Sharepoint 2013.
Reporting Service Add-in for SharePoint needs to be installed on all web front end servers and application servers in a SharePoint farm. This installation will deploy the necessary reporting service feature components in the server to support the following:
You could take two approaches to install Reporting Service Add-In for SharePoint. The reporting service Add-In is part of the SQL Server installation package so you could use SQL Server installation package to install the Add-In or you could download the Reporting Service Add-In for SharePoint as a separate package and install it.If you are installing in a Windows 2008 Server R2 then ensure Service Pack 1 is installed.Approach 1: Download Reporting Service Add-In for SharePoint and Install itAs a first step of installation, download the Reporting Service add-in from Reporting Service Add-In for SharePoint . Once the download is complete, copy the installation package to the necessary servers in the SharePoint Farm.
Approach 2: Install Reporting Service Add-in using SQL Server Installation Package
SharePoint Online And Office 365 Administration