From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andriy Berestovskyy Subject: Re: ixgbe: ierrors counter spuriously increasing in DPDK 2.1 Date: Wed, 21 Oct 2015 17:53:21 +0200 Message-ID: References: <56274EFE.5040706@allegro-packets.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Cc: dev@dpdk.org To: Martin Weiser Return-path: Received: from mail-ig0-f175.google.com (mail-ig0-f175.google.com [209.85.213.175]) by dpdk.org (Postfix) with ESMTP id 236E6C3C2 for ; Wed, 21 Oct 2015 17:53:42 +0200 (CEST) Received: by igbdj2 with SMTP id dj2so40648894igb.1 for ; Wed, 21 Oct 2015 08:53:41 -0700 (PDT) In-Reply-To: <56274EFE.5040706@allegro-packets.com> 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" Yes Marcin, The issue was discussed here: http://dpdk.org/ml/archives/dev/2015-September/023229.html You can either fix the ierrors in ixgbe_dev_stats_get() or implement a workaround in your app getting the extended statistics and counting out some of extended counters from the ierrors. Here is an example: https://github.com/Juniper/contrail-vrouter/commit/72f6ca05ac81d0ca5e7eb93c6ffe7a93648c2b00#diff-99c1f65a00658c7d38b3d1b64cb5fd93R1306 Regards, Andriy On Wed, Oct 21, 2015 at 10:38 AM, Martin Weiser wrote: > Hi, > > with DPDK 2.1 we are seeing the ierrors counter increasing for 82599ES > ports without reason. Even directly after starting test-pmd the error > counter immediately is 1 without even a single packet being sent to the > device: > > ./testpmd -c 0xfe -n 4 -- --portmask 0x3 --interactive > ... > testpmd> show port stats all > > ######################## NIC statistics for port 0 ######################## > RX-packets: 0 RX-missed: 0 RX-bytes: 0 > RX-badcrc: 0 RX-badlen: 0 RX-errors: 1 > RX-nombuf: 0 > TX-packets: 0 TX-errors: 0 TX-bytes: 0 > ############################################################################ > > ######################## NIC statistics for port 1 ######################## > RX-packets: 0 RX-missed: 0 RX-bytes: 0 > RX-badcrc: 0 RX-badlen: 0 RX-errors: 1 > RX-nombuf: 0 > TX-packets: 0 TX-errors: 0 TX-bytes: 0 > ############################################################################ > > > When packet forwarding is started the ports perform normally and > properly forward all packets but a huge number of ierrors is counted: > > testpmd> start > ... > testpmd> show port stats all > > ######################## NIC statistics for port 0 ######################## > RX-packets: 9011857 RX-missed: 0 RX-bytes: 5020932992 > RX-badcrc: 0 RX-badlen: 0 RX-errors: 9011753 > RX-nombuf: 0 > TX-packets: 9026250 TX-errors: 0 TX-bytes: 2922375542 > ############################################################################ > > ######################## NIC statistics for port 1 ######################## > RX-packets: 9026250 RX-missed: 0 RX-bytes: 2922375542 > RX-badcrc: 0 RX-badlen: 0 RX-errors: 9026138 > RX-nombuf: 0 > TX-packets: 9011857 TX-errors: 0 TX-bytes: 5020932992 > ############################################################################ > > > When running the exact same test with DPDK version 2.0 no ierrors are > reported. > Is anyone else seeing strange ierrors being reported for Intel Niantic > cards with DPDK 2.1? > > Best regards, > Martin > -- Andriy Berestovskyy