I don't think the hardware supports using RSS on packets with a double VLAN tag.
Regards, /Bruce > -----Original Message----- > From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Surya Nimmagadda > Sent: Tuesday, May 13, 2014 3:17 AM > To: dev at dpdk.org > Subject: Re: [dpdk-dev] RSS for double vlan tagged packets > > I have also tried by enabling vlan_extended support in port_conf and set > rss_hf > as all 1s. > > .hw_vlan_extend = 1 > .rss_hf = ~0 > > Still there is no change... > > Surya > > On May 12, 2014, at 12:38 PM, Surya Nimmagadda <nscsekhar at juniper.net> > wrote: > > > Hi, > > > > I am using RSS functionality on 82599 with dpdk igb_uio driver. > > > > I am able to get proper hash for untagged and single tagged packets. But for > double tagged packets, it is not working. I get hash value 0 for all packets. > > > > Is there any additional flag I need to enable for this? > > > > Regards, > > Surya
