
Introduction
============

 OpenOnload(R) is a high performance user-level network stack, which
 delivers absolutely the best performance to applications using the BSD
 sockets API.  Please see www.openonload.org for more information.

 EnterpriseOnload is a version of OpenOnload that includes an extended test
 cycle, guaranteed support from Xilinx, bug fixes and a defined service
 level agreement.

 OpenOnload and EnterpriseOnload are licensed under the GNU General Public
 License (Version 2, June 1991).  See the LICENSE and LICENSES-ALL files in
 this distribution for details.


Status of this file
===================

 This documentation and other files in this directory relate to released
 versions of Onload, have no validity when not provided as part of an Onload
 release and cannot be assumed to be up to date.

 Please see README.md at the top level of the repository for documentation
 relevant to the community-supported public work in progress.


Supported platforms
===================

 Linux kernels from 5.11.

 The following processor architecture is supported:
 - amd64/em64t (also known as x86_64)

 This release of Onload supports models of the following AMD server adapter
 series that are in current support:
 - AMD Solarflare(TM) X4 Series Ethernet Adapter
 - AMD Alveo(TM) X3 Series Low Latency Ethernet Adapter
 - AMD Solarflare(TM) X2 Series Low Latency Ethernet Adapter
 - AMD Solarflare(TM) 8000 Series Ethernet Adapter (with Plus license)

 If you are interested in trying or buying AMD Solarflare network adapters,
 please contact <nic-sales@amd.com>.


Documentation
=============

 The Onload User Guide is available from:

   https://docs.amd.com/r/en-US/ug1586-onload-user

 Other documentation for supported network cards including the Server Adapter
 User Guide are available from:

   https://www.xilinx.com/support/download/onload


Quick start
===========

 If deploying Onload from a tarball, then the following command will
 build and install the Onload drivers into system directories (as root).
 For instructions on other Onload installation packages (e.g. source RPM),
 please refer to the Onload user guide.

   <top>/scripts/onload_install

 To load the drivers, replacing any that may already be loaded:

   onload_tool reload

 You may need to configure your ethernet interface with an IP address using
 the standard tools.  Please see the documentation that comes with your
 Linux distribution for details.

 To accelerate an application with the Onload user-level transport, simply
 invoke the application on the command line as normal, prepended with
 "onload".

 ie. Instead of:

   netperf -t TCP_RR -H myserver

 do this:

   onload netperf -t TCP_RR -H myserver

 and tuned for best latency:

   onload -p latency netperf -t TCP_RR -H myserver


Configuration and tuning
========================

 Onload takes many configuration settings directly from the kernel stack.
 In addition, there are a number of configuration and tuning options that
 can be set via environment variables.  See the Onload User Guide for
 details.

 You can get detailed descriptions of the configuration options in the
 version of Onload that you are using by running the following command:

   onload_stackdump doc


Any questions?
==============

 For support please e-mail:

   support-nic@amd.com

 or visit:

   https://adaptivesupport.amd.com/s/case/Case/Default


(c) Copyright 2010-2025 Advanced Micro Devices, Inc.

==========
 version: onload-9.2.0.43
revision: 9b5835d
    date: Fri May  8 16:52:31 BST 2026
