From: Alex Markuze <alex@weka.io>
To: Thomas Monjalon <thomas.monjalon@6wind.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] nic loopback
Date: Tue, 21 Oct 2014 18:54:35 +0300 [thread overview]
Message-ID: <CAKfHP0VUqUi-XThXjf89u7zGVv++P+r=OaQ5+sOaa_gCEE6ELQ@mail.gmail.com> (raw)
In-Reply-To: <1495199.x8BsTd8nYt@xps13>
Thanks Thomas,
unfortunately these patches are only valid a pf*. This is also evident from
the ixgbe pmd code which is the only one looking at this bit (lpbk_mode).
The ixgbevf functions are agnostic to this capability.
*
http://www.intel.com/content/dam/doc/design-guide/82599-sr-iov-driver-companion-guide.pdf
On Tue, Oct 21, 2014 at 6:32 PM, Thomas Monjalon <thomas.monjalon@6wind.com>
wrote:
> 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
>
next prev parent reply other threads:[~2014-10-21 15:46 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-20 16:24 Alex Markuze
2014-10-21 1:18 ` Liang, Cunming
2014-10-21 15:16 ` Alex Markuze
2014-10-22 3:33 ` Liang, Cunming
2014-10-22 4:37 ` [dpdk-dev] FW: " Zhu, Heqing
2014-10-22 7:42 ` alex
2014-10-22 8:04 ` Liang, Cunming
2014-10-21 15:32 ` [dpdk-dev] " Thomas Monjalon
2014-10-21 15:54 ` Alex Markuze [this message]
2014-10-21 20:14 ` Thomas Monjalon
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