[dpdk-dev] Move flow parsing from test-pmd to librte_cmdline

[george.dit at gmail.com]

Hi Gaetan,

Thanks for your quick and positive reply, I will submit a patch today.

Best regards,
Georgios

On Fri, Jan 12, 2018 at 11:38 AM, Gaëtan Rivet <gaetan.rivet at 6wind.com>
wrote:

> Hi George,
>
> On Fri, Jan 12, 2018 at 10:21:41AM +0100, george.dit at gmail.com wrote:
> > Dear DPDK developers,
> >
> > In an attempt to integrate the Flow API into a third party application
> and
> > allow the e.g., insertion/deletion of NIC classification rules from that
> > application, I noticed that flow command parsing as per the most recent
> > DPDK versions (i.e., 17.08 or 17.11) might benefit from some useful
> > modifications.
> >
> > Specifically, librte_cmdline provides libraries for parsing a flow
> command
> > into tokens, but then the library for e.g., creating/deleting a flow rule
> > for a DPDK NIC resides in test-pmd (app/test-pmd/cmdline_flow.c).
> >
> > My proposal is to move the app/test-pmd/cmdline_flow.c library into
> > librte_cmdline, thus facilitate flow parsing for third party DPDK
> > applications.
> > I have a working prototype for both DPDK 17.08 and 17.11. This prototype
> > extends librte_cmdline with 2 additional files (cmdline_flow.h and .c)
> and
> > removes this functionality from test-pmd.
> > The benefit is that the functions in cmdline_flow.h can now be re-used by
> > any DPDK applications, which was not the case before.
> >
> > Do you think that the DPDK community will benefit from my patch? If so, I
> > am happy to send you the patch for review and get your feedback to
> further
> > improve it.
> > In case I missed some other way to achieve my goal (without the need to
> > patch DPDK), please let me know.
> >
> > Best regards,
>
> My opinion would that it might be interesting to have parsing helpers
> available for complex APIs such as this one, ready to be dropped into
> applications.
>
> There were contentions not too long ago about the status of rte_cmdline,
> but in any case I think it could be interesting to have your input on
> this.
>
> So don't hesitate to send it.
>
> Cheers,
> --
> Gaėtan Rivet
> 6WIND
>



-- 
Georgios Katsikas
Industrial Ph.D. Student
Network Intelligence Group
Decision, Networks, and Analytics (DNA) Lab
RISE SICS
E-Mail:  georgios.katsikas at ri.se