From: Jijiang Liu <jijiang.liu@intel.com>
To: dev@dpdk.org
Subject: [dpdk-dev] [PATCH v5 00/10] Add a VXLAN sample
Date: Tue, 23 Jun 2015 00:40:55 +0800 [thread overview]
Message-ID: <1434991265-20384-1-git-send-email-jijiang.liu@intel.com> (raw)
This VXLAN sample simulates a VXLAN Tunnel Endpoint (VTEP) termination in DPDK,
which is used to demonstrate the offload and filtering capabilities of i40 NIC for VXLAN packet.
And this sample uses the basic virtio devices management function from vHost example,
and the US-vHost interface and tunnel filtering mechanism to direct the traffic to/from a specific VM.
In addition, this sample is also designed to show how tunneling protocols can be handled.
For the vHost interface, we do not need to support zero copy/inter VM packet transfer, etc.
The approaches we took would be of benefit to you because we put a pluggable structure in place so that the application could be easily extended to support a new tunneling protocol.
The software framework is as follows:
|-------------------| |-------------------|
| VM-1(VNI:100) | | VM-2(VNI:200) |
| |------| |------| | | |------| |------| |
| |vport0| |vport1| | | |vport0| |vport1| |
|-|------|-|------|-| |-|------|-|------|-| Guests
\ /
|-------------\-------/--------|
| us-vHost interface |
| |-|----|--| |
| decap| | TEP| | encap | DPDK App
| |-|----|--| |
| | | |
|------------|----|------------|
| |
|-------------|----|---------------|
|tunnel filter| | IP/L4 Tx csum |
|IP/L4 csum | | TSO |
|packet type | | | NIC
|packet recogn| | |
|-------------|----|---------------|
| |
| |
| |
/-------\
VXLAN Tunnel
The sample will support the followings:
1> Tunneling packet recognition.
2> The port of UDP tunneling is configurable
3> Directing incoming traffic to the correct queue based on the tunnel filter type such as inner MAC address and VNI.
The VNI will be assigned from a static internal table based on the us-vHost device ID. Each device will receive a unique device ID. The inner MAC will be learned by the first packet transmitted from a device.
4> Decapsulation of Rx VXLAN traffic. This is a software only operation.
5> Encapsulation of Tx VXLAN traffic. This is a software only operation.
6> Tx outer IP, inner IP and L4 checksum offload
7> TSO support for tunneling packet
The limitations:
1. No ARP support.
2. There are some duplicated source codes because I used the basic virtio device management function from VHOST sample. Considering that the current VHOST sample is quite complicated and huge enough, I think we shall have a separate sample for tunneling packet processing.
3. Currently, only the i40e NIC is tested in the sample, but other types of NICs will also be supported if they are able to support tunneling packet filter.
v2 changes:
Fix an issue about the 'nb_ports' duplication in check_ports_num().
Remove the inaccurate comment in main.c
Fix an issue about TSO offload.
v3 changes:
Change some viriable name that don't follow coding rules.
Remove the limitation of VXLAN packet size due to TSO support.
Remove useless 'll_root_used' variable in vxlan_setup.c file.
Remove defination and use of '_htons'.
v4 changes:
Fix most of warnings detected by the checkpatch.pl in the main.c and the main.h file, and
there are still some wairnings(line over 80 characters) in the main.c file.
Fix all of warnings detected by the checkpatch.pl in other files.
v5 changes:
Fix a typo in examples/tep_termination/Makefile.
Wrap commit message to about 72 characters.
Fix 2 compilation errors using gcc 4.9.2.
Jijiang Liu (10):
create VXLAN sample framework using virtio device management function
add basic VXLAN structures
addthe pluggable structures
implement VXLAN packet processing
add udp port configuration
add filter type configuration
add tx checksum offload configuration
add TSO offload configuration
add Rx checksum statistics
add encapsulation and decapsulation flags
examples/Makefile | 1 +
examples/tep_termination/Makefile | 55 ++
examples/tep_termination/main.c | 1277 ++++++++++++++++++++++++++++++++
examples/tep_termination/main.h | 129 ++++
examples/tep_termination/vxlan.c | 260 +++++++
examples/tep_termination/vxlan.h | 86 +++
examples/tep_termination/vxlan_setup.c | 457 ++++++++++++
examples/tep_termination/vxlan_setup.h | 87 +++
8 files changed, 2352 insertions(+), 0 deletions(-)
create mode 100644 examples/tep_termination/Makefile
create mode 100644 examples/tep_termination/main.c
create mode 100644 examples/tep_termination/main.h
create mode 100644 examples/tep_termination/vxlan.c
create mode 100644 examples/tep_termination/vxlan.h
create mode 100644 examples/tep_termination/vxlan_setup.c
create mode 100644 examples/tep_termination/vxlan_setup.h
--
1.7.7.6
next reply other threads:[~2015-06-22 16:41 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-22 16:40 Jijiang Liu [this message]
2015-06-22 16:40 ` [dpdk-dev] [PATCH v5 01/10] examples/tep_termination:initialize the " Jijiang Liu
2015-06-23 9:05 ` Thomas Monjalon
2015-06-22 16:40 ` [dpdk-dev] [PATCH v5 02/10] examples/tep_termination:define the basic VXLAN port information Jijiang Liu
2015-06-22 16:40 ` [dpdk-dev] [PATCH v5 03/10] examples/tep_termination:add the pluggable structures for VXLAN packet processing Jijiang Liu
2015-06-22 16:40 ` [dpdk-dev] [PATCH v5 04/10] examples/tep_termination:implement " Jijiang Liu
2015-06-22 16:41 ` [dpdk-dev] [PATCH v5 05/10] examples/tep_termination:add UDP port configuration for UDP tunneling packet Jijiang Liu
2015-06-22 16:41 ` [dpdk-dev] [PATCH v5 06/10] examples/tep_termination:add tunnel filter type configuration Jijiang Liu
2015-06-22 16:41 ` [dpdk-dev] [PATCH v5 07/10] examples/tep_termination:add Tx checksum offload configuration for inner header Jijiang Liu
2015-06-22 16:41 ` [dpdk-dev] [PATCH v5 08/10] examples/tep_termination:add TSO offload configuration Jijiang Liu
2015-06-22 16:41 ` [dpdk-dev] [PATCH v5 09/10] examples/tep_termination:add bad Rx checksum statistics of inner IP and L4 Jijiang Liu
2015-06-22 16:41 ` [dpdk-dev] [PATCH v5 10/10] examples/tep_termination:add the configuration for encapsulation and the decapsulation Jijiang Liu
2015-06-23 9:40 ` [dpdk-dev] [PATCH v5 00/10] Add a VXLAN sample Thomas Monjalon
2015-06-23 11:36 ` Liu, Jijiang
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