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From: Thomas Monjalon <thomas.monjalon-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
Subject: Re: nic loopback
Date: Tue, 21 Oct 2014 17:32:24 +0200
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To: Alex Markuze <alex-I7wstvAgZDk@public.gmane.org>
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2014-10-20 19:24, Alex Markuze:
> I'm trying to send packets from an application to it self, meaning smac  ==
> dmac.
> I'm working with intel 82599 virtual function. But it seems that these
> packets are lost.
> 
> Is there a software/hw limitation I'm missing here (some additional
> anti-spoofing)? AFAIK modern NICs with sriov are mini switches so the hw
> loopback should work, at least thats the theory.

I think you should look at these commits:

ixgbe: add Tx->Rx loopback mode for 82599
	http://dpdk.org/browse/dpdk/commit/?id=db035925617
app/testpmd: add loopback topology
	http://dpdk.org/browse/dpdk/commit/?id=3e2006d6186

-- 
Thomas