Hi Andrey, Regards _Sugesh
> -----Original Message----- > From: Chilikin, Andrey > Sent: Friday, July 15, 2016 11:02 AM > To: Chandran, Sugesh <sugesh.chandran at intel.com>; 'Adrien Mazarguil' > <adrien.mazarguil at 6wind.com> > Cc: dev at dpdk.org; Thomas Monjalon <thomas.monjalon at 6wind.com>; > Zhang, Helin <helin.zhang at intel.com>; Wu, Jingjing > <jingjing.wu at intel.com>; Rasesh Mody <rasesh.mody at qlogic.com>; Ajit > Khaparde <ajit.khaparde at broadcom.com>; Rahul Lakkireddy > <rahul.lakkireddy at chelsio.com>; Lu, Wenzhuo <wenzhuo.lu at intel.com>; > Jan Medala <jan at semihalf.com>; John Daley <johndale at cisco.com>; Chen, > Jing D <jing.d.chen at intel.com>; Ananyev, Konstantin > <konstantin.ananyev at intel.com>; Matej Vido <matejvido at gmail.com>; > Alejandro Lucero <alejandro.lucero at netronome.com>; Sony Chacko > <sony.chacko at qlogic.com>; Jerin Jacob > <jerin.jacob at caviumnetworks.com>; De Lara Guarch, Pablo > <pablo.de.lara.guarch at intel.com>; Olga Shern <olgas at mellanox.com> > Subject: RE: [dpdk-dev] [RFC] Generic flow director/filtering/classification > API > > Hi Sugesh, > > > -----Original Message----- > > From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Chandran, Sugesh > > Sent: Friday, July 15, 2016 10:23 AM > > To: 'Adrien Mazarguil' <adrien.mazarguil at 6wind.com> > > <snip> > > > > > > To PMD maintainers: please comment if you know devices that > > > > > support tagging matching packets with more than 32 bits of > > > > > user-provided data! > > > > [Sugesh] I guess the flow director ID is 64 bit , The XL710 datasheet > > > > says > so. > > > > And in the 'rte_mbuf' structure the 64 bit FDIR-ID is shared with > > > > rss hash. This can be a software driver limitation that expose > > > > only > > > > 32 bit. Possibly because of cache alignment issues? Since the > > > > hardware can support 64 bit, I feel it make sense to support 64 bit as > well. > > XL710 supports 32bit FDIR ID only, I believe you mix it up with flexible > payload > data which can take 0, 4 or 8 bytes of the RX descriptor. [Sugesh] Thank you for correcting Andrey. Its my mistake..I mixed up with flexible payload data. The FDIR ID is only 32 bit. > > Regards, > Andrey
