[dpdk-dev] [PATCH v2 0/3] ethdev: add generic L2/L3 tunnel encapsulation actions

Ori Kam orika at mellanox.com
Wed Sep 26 23:00:43 CEST 2018


This series implement the generic L2/L3 tunnel encapsulation actions
and is based on rfc [1] "add generic L2/L3 tunnel encapsulation actions"

Currenlty the encap/decap actions only support encapsulation
of VXLAN and NVGRE L2 packets (L2 encapsulation is where
the inner packet has a valid Ethernet header, while L3 encapsulation
is where the inner packet doesn't have the Ethernet header).
In addtion the parameter to to the encap action is a list of rte items,
this results in 2 extra translation, between the application to the action
and from the action to the NIC. This results in negetive impact on the
insertion performance.
    
Looking forward there are going to be a need to support many more tunnel
encapsulations. For example MPLSoGRE, MPLSoUDP.
Adding the new encapsulation will result in duplication of code.
For example the code for handling NVGRE and VXLAN are exactly the same,
and each new tunnel will have the same exact structure.
    
This series introduce a generic encapsulation for L2 tunnel types, and
generic encapsulation for L3 tunnel types. In addtion the new
encapsulations commands are using raw buffer inorder to save the
converstion time, both for the application and the PMD.

[1]https://mails.dpdk.org/archives/dev/2018-August/109944.html

Changes in v2:

* add missing decap_l3 structure.
* fix typo.



Ori Kam (3):
  ethdev: add generic L2/L3 tunnel encapsulation actions
  app/testpmd: convert testpmd encap commands to new API
  ethdev: remove vxlan and nvgre encapsulation commands

 app/test-pmd/cmdline_flow.c        | 294 +++++++++++++++++--------------------
 app/test-pmd/config.c              |   3 +
 doc/guides/prog_guide/rte_flow.rst | 115 ++++++---------
 lib/librte_ethdev/rte_flow.h       | 108 ++++++--------
 4 files changed, 227 insertions(+), 293 deletions(-)

-- 
1.8.3.1



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