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From: "Yang, Yi" <yi.y.yang@intel.com>
To: Jiri Benc <jbenc@redhat.com>
Cc: "netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	"dev@openvswitch.org" <dev@openvswitch.org>,
	"e@erig.me" <e@erig.me>, "pshelar@ovn.org" <pshelar@ovn.org>,
	"davem@davemloft.net" <davem@davemloft.net>
Subject: Re: [PATCH net-next v12] openvswitch: enable NSH support
Date: Fri, 20 Oct 2017 05:53:12 +0800	[thread overview]
Message-ID: <20171019215312.GA91385@cran64.bj.intel.com> (raw)
In-Reply-To: <20171019154118.16d906e0@griffin>

On Thu, Oct 19, 2017 at 03:41:18PM +0200, Jiri Benc wrote:
> On Thu, 19 Oct 2017 21:12:15 +0800, Yang, Yi wrote:
> > flow_key in set_nsh is got from netlink message which is set by
> > commit_nsh in user space, here is code.
> 
> Isn't this the 'key' local variable that you're talking about, while I'm
> referring to the 'flow_key' parameter?

Oh, my mistake, but it is possible not to polulate nsh key in flow_key
for push_nsh then set, as Jan and I explained before, we don't
recirculate the packet after push_nsh for performance, so parse function
isn't called for NSH header, mdtype can't be gotten from flow_key yet.
Only one case is true, i.e. an ingress NSH packet is parsed then set by 
changing si and ttl.

For push_nsh, my typical use scinario is push_nsh then set then output
to vxlangpe port.

> 
>  Jiri

  reply	other threads:[~2017-10-19 22:08 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-16 13:53 [PATCH net-next v12] openvswitch: enable NSH support Yi Yang
2017-10-18 21:19 ` Jiri Benc
2017-10-19 11:40   ` Yang, Yi
2017-10-19 12:43     ` Jiri Benc
2017-10-19 13:12       ` Yang, Yi
     [not found]         ` <20171019131215.GA84551-re2EX8HDrk21gSHoDXDV2kEOCMrvLtNR@public.gmane.org>
2017-10-19 13:41           ` Jiri Benc
2017-10-19 21:53             ` Yang, Yi [this message]
2017-10-20  8:05               ` Jiri Benc
2017-10-20 11:34                 ` Yang, Yi

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