[dpdk-dev] [PATCH] [v2 1/1] examples/l2fwd: add cmdline option for forwarding port info

[Andrzej Ostruszka [C]]

On 4/5/20 5:52 AM, vattunuru at marvell.com wrote:
> From: Vamsi Attunuru <vattunuru at marvell.com>
> 
> Current l2fwd application configures adjacent ports as destination
> ports for forwarding the traffic which is a kind of static mapping
> that can not be altered by the command line options.
> 
> Patch adds a config option to pass the forwarding port pair mapping
> as a command line parameter which allows the user to pass required
> forwarding port mapping.
> 
> If no config argument is specified, destination port map is not
> changed and traffic gets forwarded with existing mapping.
> 
> When port pair mapping is passed in config option, destination port map
> is configured and traffic gets forwarded accordingly.
> 
> Ex: ./l2fwd -c 0xff -- -p 0x3f --config="(0,3)(1,4)(2,5)"
> 
> With above config option, traffic received from portid = 0 gets forwarded
> to port = 3 and vice versa, similarly traffic gets forwarded on other port
> pairs (1,4) and (2,5).
> 
> Signed-off-by: Vamsi Attunuru <vattunuru at marvell.com>
> ---
> V2 Changes:
> 
> * Fix command option format in docs.
> * Use memcpy instead of snprintf.
> * Rephrase if-else condition.
> 
>  doc/guides/rel_notes/release_20_05.rst             |   6 +
>  .../sample_app_ug/l2_forward_real_virtual.rst      |  18 ++-
>  examples/l2fwd/main.c                              | 169 ++++++++++++++++++---
>  3 files changed, 172 insertions(+), 21 deletions(-)

Acked-by: Andrzej Ostruszka <aostruszka at marvell.com>