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doc: add missing loopback option in testpmd guide

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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.

Fixes: 3e2006d6186c ("app/testpmd: add loopback topology")
Cc: stable@dpdk.org

Signed-off-by: Rami Rosen <ramirose@gmail.com>
Acked-by: Bernard Iremonger <bernard.iremonger@intel.com>
This commit is contained in:
Rami Rosen 2019-01-17 13:39:26 +02:00 committed by Ferruh Yigit
parent d690d953a7
commit 48670ed6f7
1 changed files with 3 additions and 1 deletions
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4
doc/guides/testpmd_app_ug/run_app.rst
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@ -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::