[dpdk-dev] [PATCH v2 6/6] app/testpmd: add mempool flags parameter

[Jerin Jacob Kollanukkaran]

On Tue, 2019-03-19 at 15:12 +0800, Xiaolong Ye wrote:
> When create rte_mempool, flags can be parsed from command line.
> Now, it is possible for testpmd to create a af_xdp friendly
> mempool (which enable zero copy).
> 
> Signed-off-by: Qi Zhang <qi.z.zhang at intel.com>
> Signed-off-by: Xiaolong Ye <xiaolong.ye at intel.com>
> ---
>  app/test-pmd/parameters.c             | 12 ++++++++++++
>  app/test-pmd/testpmd.c                | 17 ++++++++++-------
>  app/test-pmd/testpmd.h                |  1 +
>  doc/guides/testpmd_app_ug/run_app.rst |  4 ++++

If I understand it correctly, The user needs to change all the
application in order to avail zero copy feature of XDP.

If so,

How about creating wrapper mempool driver for xdp at drivers/mempool/?
and mempool's best mempool feature to select the required mempool
driver for XDP at runtime without changing the apps.

see rte_mbuf_best_mempool_ops()
see struct eth_dev_ops::pool_ops_supported

/Jerin