> -----Original Message----- > From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Olivier Matz > Sent: Wednesday, July 20, 2016 8:16 AM > To: dev at dpdk.org > Cc: jerin.jacob at caviumnetworks.com; thomas.monjalon at 6wind.com; > Richardson, Bruce <bruce.richardson at intel.com> > Subject: [dpdk-dev] [PATCH v2] doc: announce ABI change for mbuf structure > > For 16.11, the mbuf structure will be modified implying ABI breakage. > Some discussions already took place here: > http://www.dpdk.org/dev/patchwork/patch/12878/ > > Signed-off-by: Olivier Matz <olivier.matz at 6wind.com> > --- > > v1->v2: > - reword the sentences to keep things more open, as suggested by Bruce > > doc/guides/rel_notes/deprecation.rst | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/doc/guides/rel_notes/deprecation.rst > b/doc/guides/rel_notes/deprecation.rst > index f502f86..b9f5a93 100644 > --- a/doc/guides/rel_notes/deprecation.rst > +++ b/doc/guides/rel_notes/deprecation.rst > @@ -41,3 +41,9 @@ Deprecation Notices > * The mempool functions for single/multi producer/consumer are deprecated and > will be removed in 16.11. > It is replaced by rte_mempool_generic_get/put functions. > + > +* ABI changes are planned for 16.11 in the ``rte_mbuf`` structure: some > fields > + may be reordered to facilitate the writing of ``data_off``, ``refcnt``, and > + ``nb_segs`` in one operation, because some platforms have an overhead if > the > + store address is not naturally aligned. Other mbuf fields, such as the > + ``port`` field, may be moved or removed as part of this mbuf work. > --
Acked-by: Konstantin Ananyev <konstantin.ananyev at intel.com> > 2.8.1
