ce3e971bab
The init of VIC/ENIC ports enable VLAN stripping of received packets by
default, which is different to all other devices. The VLAN stripping of
ENIC ports can be disabled by adding the per device DPDK config as
"vlan-strip-offload off" such as:
dpdk {... dev 0000:0c:00.0 {vlan-strip-offload off} ...}
The per device config "vlan-strip-offload on" can be used for enabling VLAN
stripping for other devices which support this function but is disabled
by default.
Change-Id: I9c81904a87c26868a07900b03677aeeb57f72372
Signed-off-by: John Lo <loj@cisco.com>
Vector Packet Processing
Introduction.
The VPP platform is an extensible framework that provides out-of-the-box production quality switch/router functionality. It is the open source version of Cisco's Vector Packet Processing (VPP) technology: a high performance, packet-processing stack that can run on commodity CPUs.
The benefits of this implementation of VPP are its high performance, proven technology, its modularity and flexibility, and rich feature set.
For more information on VPP and its features please visit the FD.io website and What is VPP? pages.
Directory layout.
| Directory name | Description |
|---|---|
| build-data | Build metadata |
| build-root | Build output directory |
| doxygen | Documentation generator configuration |
| dpdk | DPDK patches and build infrastructure |
| g2 | Event log visualization tool |
| gmod | perf related? |
| perftool | Performance tool |
| sample-plugin | A sample plugin |
| @ref svm | Shared virtual memory allocation library |
| test | Unit tests |
| @ref vlib | VPP application library source |
| @ref vlib-api | VPP API library source |
| @ref vnet | VPP networking source |
| @ref vpp | VPP application source |
| @ref vpp-api | VPP application API source |
| vppapigen | VPP API generator source |
| vpp-api-test | VPP API test program source |
| @ref vppinfra | VPP core library source |
(If the page you are viewing is not generated by Doxygen then ignore any @@ref labels in the above table.)
Getting started.
In general anyone interested in building, developing or running VPP should consult the VPP wiki for more complete documentation.
In particular, readers are recommended to take a look at [Pulling, Building, Running, Hacking, Pushing](https://wiki.fd.io/view/VPP/Pulling,_Building,_Run ning,_Hacking_and_Pushing_VPP_Code) which provides extensive step-by-step coverage of the topic.
For the impatient, some salient information is distilled below.
Quick-start: On an existing Linux host.
To install system dependencies, build VPP and then install it, simply run the
build script. This should be performed a non-privileged user with sudo
access from the project base directory:
./build-root/vagrant/build.sh
If you want a more fine-grained approach because you intend to do some
development work, the Makefile in the root directory of the source tree
provides several convenience shortcuts as make targets that may be of
interest. To see the available targets run:
make
Quick-start: Vagrant.
The directory build-root/vagrant contains a VagrantFile and supporting
scripts to bootstrap a working VPP inside a Vagrant-managed Virtual Machine.
This VM can then be used to test concepts with VPP or as a development
platform to extend VPP. Some obvious caveats apply when using a VM for VPP
since its performance will never match that of bare metal; if your work is
timing or performance sensitive, consider using bare metal in addition or
instead of the VM.
For this to work you will need a working installation of Vagrant. Instructions for this can be found [on the Setting up Vagrant wiki page] (https://wiki.fd.io/view/DEV/Setting_Up_Vagrant).
More information.
Visit the VPP wiki for details on more advanced building strategies and development notes.