RE: [PATCH] doc: deprecation notice to add callback data to rte_event_fp_ops

["Tummala, Sivaprasad" <Sivaprasad.Tummala@amd.com>]

[AMD Official Use Only - General]

Hi Jerin,

> -----Original Message-----
> From: Jerin Jacob <jerinjacobk@gmail.com>
> Sent: Thursday, July 13, 2023 2:22 PM
> To: Tummala, Sivaprasad <Sivaprasad.Tummala@amd.com>
> Cc: dev@dpdk.org; Yigit, Ferruh <Ferruh.Yigit@amd.com>;
> bruce.richardson@intel.com; david.marchand@redhat.com; thomas@monjalon.net
> Subject: Re: [PATCH] doc: deprecation notice to add callback data to
> rte_event_fp_ops
>
> Caution: This message originated from an External Source. Use proper caution
> when opening attachments, clicking links, or responding.
>
>
> On Wed, Jul 12, 2023 at 11:01 PM Sivaprasad Tummala
> <sivaprasad.tummala@amd.com> wrote:
> >
> > Deprecation notice to add "rte_eventdev_port_data" field to
>
> Could you share the rational for why rte_eventdev_port_data needs to be added?

"rte_eventdev_port_data" is used to hold callbacks registered optionally per event device port and associated callback data.
By adding "rte_eventdev_port_data" to "rte_event_fp_ops", allows to fetch this data for fastpath eventdev inline functions in advance.

>
>
> > ``rte_event_fp_ops`` for callback support.
> >
> > Signed-off-by: Sivaprasad Tummala <sivaprasad.tummala@amd.com>
> > ---
> >  doc/guides/rel_notes/deprecation.rst | 4 ++++
> >  1 file changed, 4 insertions(+)
> >
> > diff --git a/doc/guides/rel_notes/deprecation.rst
> > b/doc/guides/rel_notes/deprecation.rst
> > index 8e1cdd677a..2c69338818 100644
> > --- a/doc/guides/rel_notes/deprecation.rst
> > +++ b/doc/guides/rel_notes/deprecation.rst
> > @@ -133,6 +133,10 @@ Deprecation Notices
> >    ``rte_cryptodev_get_auth_algo_string``,
> ``rte_cryptodev_get_aead_algo_string`` and
> >    ``rte_cryptodev_asym_get_xform_string`` respectively.
> >
> > +* eventdev: The struct rte_event_fp_ops will be updated with a new
> > +element
> > +  rte_eventdev_port_data to support optional callbacks in DPDK 23.11.
> > +This changes
> > +  the size of rte_event_fp_ops and result in ABI change.
> > +
> >  * flow_classify: The flow_classify library and example have no maintainer.
> >    The library is experimental and, as such, it could be removed from DPDK.
> >    Its removal has been postponed to let potential users report
> > interest
> > --
> > 2.34.1
> >