From: "Lu, Wenzhuo" <wenzhuo.lu@intel.com>
To: "Montorsi, Francesco" <fmontorsi@empirix.com>,
"dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] rte_ixgbevf_pmd not reporting dropped packets
Date: Tue, 8 Nov 2016 01:20:53 +0000 [thread overview]
Message-ID: <6A0DE07E22DDAD4C9103DF62FEBC090939341C8E@shsmsx102.ccr.corp.intel.com> (raw)
In-Reply-To: <a14e06895bdc4da2a2259e216f0deed5@bilemail1.empirix.com>
Hi Francesco,
> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Montorsi, Francesco
> Sent: Tuesday, November 8, 2016 1:17 AM
> To: dev@dpdk.org
> Subject: [dpdk-dev] rte_ixgbevf_pmd not reporting dropped packets
>
> Hi all,
>
> I'm using DPDK inside the OS of a VM that is SR-IOV-accelerated.
> I noticed however that the "rte_ixgbevf_pmd" PMD does not report drops... I
> am sending packets at TX side at 14Mpps; at the RX side I'm using "testpmd" and
> it's reporting 'just' 12Mpps, but zero drops (also through xstats).
>
> Is this a known bug?
> I found a message at
> http://dpdk.org/ml/archives/dev/2016-March/035374.html
> reporting a similar issue back in March this year...
It's a known limitation. The stats are got from HW. But there're very limited counters for VF. There's no similar counter as imiss for VF :(
>
>
> Thanks,
>
> Francesco Montorsi
prev parent reply other threads:[~2016-11-08 1:20 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-07 17:17 Montorsi, Francesco
2016-11-08 1:20 ` Lu, Wenzhuo [this message]
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