From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Monjalon Subject: Re: Debugging SR-IOV related packet flow problem with DPDK Date: Tue, 16 Jun 2015 22:52:46 +0200 Message-ID: <15776821.ucWqCiW9hh@xps13> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Cc: dev@dpdk.org To: Anjali Kulkarni Return-path: Received: from mail-wi0-f181.google.com (mail-wi0-f181.google.com [209.85.212.181]) by dpdk.org (Postfix) with ESMTP id F2347C34A for ; Tue, 16 Jun 2015 22:53:46 +0200 (CEST) Received: by wiga1 with SMTP id a1so120022405wig.0 for ; Tue, 16 Jun 2015 13:53:46 -0700 (PDT) In-Reply-To: List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Hi, That's third email in 8 hours for this question. Do you plan to send an email every 4 hours? It's really hard to help you without knowing which application you run? in which VM? which VLAN configuration? etc 2015-06-16 20:22, Anjali Kulkarni: > Hi, > > Can someone please help with this? How can packet flow be traced on DPDK? > Where are all the logs stored if we do enable the _DEBUG configs in > config/ directory? stdout or somewhere else if you configured logs in your app. > Anjali [...] > I am observing that the SR-IOV enabled NIC does not increment any VF packet > counters despite incoming packet flow. I have enabled some debug logs like > CONFIG_RTE_LIBRTE_IXGBE_DEBUG_RX in config file. > Can someone point me to where these logs are being printed so I can try to > figure out where packets are being dropped? Or how can I debug DPDK packet > flow related issues (are there any stats I can look at)? Statistics can be requested through a dedicated ethdev API.