This patch adds a missing topology "loop" mode for port-topology option in testpmd guide. The testpmd "loop" option (PORT_TOPOLOGY_LOOP) was added to testpmd parameter port-topology back in 2014, but it seems that it was never added to the testpmd guide. This patch adds it in the testpmd guide.
v2: Change "loopback" to "loop" (following Bernard review) Fixes: 3e2006d6186c ("app/testpmd: add loopback topology") Cc: sta...@dpdk.org Signed-off-by: Rami Rosen <ramir...@gmail.com> --- doc/guides/testpmd_app_ug/run_app.rst | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/doc/guides/testpmd_app_ug/run_app.rst b/doc/guides/testpmd_app_ug/run_app.rst index f717bd3..ee51b1d 100644 --- a/doc/guides/testpmd_app_ug/run_app.rst +++ b/doc/guides/testpmd_app_ug/run_app.rst @@ -196,7 +196,7 @@ The commandline options are: * ``--port-topology=mode`` - Set port topology, where mode is ``paired`` (the default) or ``chained``. + Set port topology, where mode is ``paired`` (the default), ``chained`` or ``loop``. In ``paired`` mode, the forwarding is between pairs of ports, for example: (0,1), (2,3), (4,5). @@ -204,6 +204,8 @@ The commandline options are: The ordering of the ports can be changed using the portlist testpmd runtime function. + In ``loop`` mode, ingress traffic is simply transmitted back on the same interface. + * ``--forward-mode=mode`` Set the forwarding mode where ``mode`` is one of the following:: -- 1.8.3.1