Re: [dpdk-dev] Does I210 NIC support Flow director filters?

[Bruce Richardson <bruce.richardson@intel.com>]

On Wed, Jan 14, 2015 at 04:59:17PM -0500, Kamraan Nasim wrote:
> Many thanks Helin and Bruce :)
> 
> Now if 1Gb NICs don't support fdir filters then im wondering how would we
> count the number of packets matching a filter.
> 
> Regular 5tuple filters don't have any stats similar to "fdirmatch"(in the
> rte_eth_stats <http://dpdk.org/doc/api/structrte__eth__stats.html> struct).
> One way I can think of is to use regular ibytes/ipackets stats for the
> queue to which the packets are being redirected in the 5tuple filter but
> this seems a bit hacky + there is no way to distinguish this packet
> throughput from the regular traffic that the NIC is forwarding to that
> specific queue.
> 
> Is there a way to EXCLUSIVELY bind a 5tuple filter to an RSS queue so that
> only matched traffic is forwarded there?
> 
> 
> --Kam
> 

What you can do is use a 5-tuple filter to send traffic to a queue. What you
can also do is update the RSS RETA table so that traffic doesn't get sent
to that queue via RSS. Is that what you are asking?

/Bruce

> On Wed, Jan 14, 2015 at 5:27 AM, Bruce Richardson <
> bruce.richardson@intel.com> wrote:
> 
> > On Tue, Jan 13, 2015 at 11:21:08PM -0500, Kamraan Nasim wrote:
> > > Hello,
> > >
> > > I've been using DPDK fdir filter APIs for 82599 NIC(Niantic) and they
> > work
> > > very well.
> > >
> > > Was wondering if I these could also be used for I210, 1Gbps NICs?
> > >
> > > The other option is to use 5tuple filters(rte_eth_dev_add_5tuple_filter
> > > <
> > http://dpdk.org/doc/api/rte__ethdev_8h.html#aaa28adafa65a4f47d4aeceaf1b08381b
> > >),
> > > however these do not support IPv6 yet.
> > >
> > >
> > > Have people in the community had any luck with configuring L3/L4 hardware
> > > filters for the I210 NIC?
> > >
> > > Thanks,
> > > Kam
> >
> > Flow director filters are not supported for 1G NICs. Sorry.
> >
> > /Bruce
> >