> -----Original Message----- > From: Wu, Jingjing > Sent: Friday, September 16, 2016 6:06 PM > To: dev at dpdk.org > Cc: Wu, Jingjing <jingjing.wu at intel.com>; Xing, Beilei > <beilei.xing at intel.com>; Mcnamara, John <john.mcnamara at intel.com> > Subject: [PATCH v2] doc: add limitations for i40e PMD > > This patch adds "Limitations or Known issues" section for i40e PMD, > including two items: > 1. MPLS packet classification on X710/XL710 2. 16 Byte Descriptor cannot > be used on DPDK VF > > Signed-off-by: Jingjing Wu <jingjing.wu at intel.com> > > ... > > +Before NIC firmware version of 5.0, MPLS packet cannot be recognized by > NIC. > +The L2 Payload flow type in flow director can be used to classify MPLS > +packet by the command in testpmd like: > + > + testpmd> flow_director_filter 0 mode IP add flow l2_payload ether \ > + 0x8847 flexbytes () fwd pf queue <N> fd_id <M> > + > +In the NIC firmware whose version is 5.0 or greater, very limited MPLS > +support is added: Native MPLS skip is implemented, that is, packet type > +can be recognized like MPLS header is skipped, while no new packet type > +and no more meta data is extracted from MPLS header.
This paragraph is a little confusing. Perhaps you could simplify/clarify it.
