DPDK patches and discussions
 help / color / mirror / Atom feed
From: Bruce Richardson <bruce.richardson@intel.com>
To: Kamraan Nasim <knasim@sidebandnetworks.com>
Cc: dev@dpdk.org, Ean Houts <ehouts@sidebandnetworks.com>,
	Jun Du <jdu@sidebandnetworks.com>
Subject: Re: [dpdk-dev] Does I210 NIC support Flow director filters?
Date: Thu, 15 Jan 2015 14:44:50 +0000	[thread overview]
Message-ID: <20150115144449.GA1880@bricha3-MOBL3> (raw)
In-Reply-To: <CAPrTskhLO+zvYtc=t=O5bm90+b1E7DGZ+q6XgyRxWR1cTegcvQ@mail.gmail.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
> >

  reply	other threads:[~2015-01-15 14:44 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-14  4:21 Kamraan Nasim
2015-01-14  7:42 ` Zhang, Helin
2015-01-14 10:27 ` Bruce Richardson
2015-01-14 21:59   ` Kamraan Nasim
2015-01-15 14:44     ` Bruce Richardson [this message]
2015-01-16  1:06       ` Kamraan Nasim
2015-01-16 10:56         ` Bruce Richardson
2015-01-16 16:42           ` Kamraan Nasim
2015-01-16 17:31             ` Bruce Richardson

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20150115144449.GA1880@bricha3-MOBL3 \
    --to=bruce.richardson@intel.com \
    --cc=dev@dpdk.org \
    --cc=ehouts@sidebandnetworks.com \
    --cc=jdu@sidebandnetworks.com \
    --cc=knasim@sidebandnetworks.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).