[dpdk-dev] RSS for double vlan tagged packets

[Richardson, Bruce]

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