From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <mgangadhar@sandvine.com>
Received: from mail1.sandvine.com (Mail1.sandvine.com [64.7.137.134])
 by dpdk.org (Postfix) with ESMTP id F01105F32
 for <users@dpdk.org>; Mon,  4 Jun 2018 15:34:04 +0200 (CEST)
Received: from WTL-EXCHSV2-1.sandvine.com (192.168.194.58) by
 WTL-EXCHSV2-1.sandvine.com (192.168.194.58) with Microsoft SMTP Server
 (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P521) id
 15.1.1034.26; Mon, 4 Jun 2018 09:34:03 -0400
Received: from BLR-EXCHSV1-2.sandvine.com (10.30.4.75) by
 WTL-EXCHSV2-1.sandvine.com (192.168.194.58) with Microsoft SMTP Server
 (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id
 15.1.1034.26 via Frontend Transport; Mon, 4 Jun 2018 09:34:03 -0400
Received: from BLR-EXCHSV1-2.sandvine.com (10.30.4.75) by
 BLR-EXCHSV1-2.sandvine.com (10.30.4.75) with Microsoft SMTP Server
 (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id
 15.1.1034.26; Mon, 4 Jun 2018 19:03:58 +0530
Received: from BLR-EXCHSV1-2.sandvine.com ([fe80::88fb:52a8:3df5:2d87]) by
 BLR-EXCHSV1-2.sandvine.com ([fe80::88fb:52a8:3df5:2d87%23]) with mapi id
 15.01.1034.026; Mon, 4 Jun 2018 19:03:58 +0530
From: Mridula V Gangadharan <mgangadhar@sandvine.com>
To: "users@dpdk.org" <users@dpdk.org>
Thread-Topic: i40evf: Problem with the statistics
Thread-Index: AdP4Hc9uDkLvqGkeTF2+tmQeXWEpggAqVT8gAAIQmfAAzk+IkA==
Date: Mon, 4 Jun 2018 13:33:57 +0000
Message-ID: <d35e90132dd8431a92285264058aa879@sandvine.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach: 
X-MS-TNEF-Correlator: 
x-originating-ip: [10.30.10.135]
x-c2processedorg: b2f06e69-072f-40ee-90c5-80a34e700794
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
Subject: [dpdk-users] i40evf: Problem with the statistics
X-BeenThere: users@dpdk.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: DPDK usage discussions <users.dpdk.org>
List-Unsubscribe: <https://dpdk.org/ml/options/users>,
 <mailto:users-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://dpdk.org/ml/archives/users/>
List-Post: <mailto:users@dpdk.org>
List-Help: <mailto:users-request@dpdk.org?subject=help>
List-Subscribe: <https://dpdk.org/ml/listinfo/users>,
 <mailto:users-request@dpdk.org?subject=subscribe>
X-List-Received-Date: Mon, 04 Jun 2018 13:34:05 -0000

Hi,

I am testing packet drops scenario by setting the MTU size.=A0
My setup have i40evf driver. I set the dpdk interface's MTU size to 1800.=
=A0
I am sending 100 packets of size 1918 each.
I am expecting the drop counter to increment.
rte_eth_stats_get() returns i.packets with number of packets I sent.=A0
There are no drop counters incrementing. Also my application is not recievi=
ng any packets.
Is there some issue with dpdk statistics?
xstats=A0 output is as follows. It is not showing any drops but rx_good_byt=
es counts are incrementing.

####################################################

NIC extended statistics for port 1
####################################################
rx_good_packets: 656
tx_good_packets: 556
rx_good_bytes: 225160=20
tx_good_bytes: 33360
rx_errors: 0
tx_errors: 0
rx_mbuf_allocation_errors: 0
rx_q0packets: 0
rx_q0bytes: 0
rx_q0errors: 0
tx_q0packets: 0
tx_q0bytes: 0
rx_bytes: 225160
rx_unicast_packets: 656
rx_multicast_packets: 0
rx_broadcast_packets: 0
rx_dropped_packets: 0
rx_unknown_protocol_packets: 0
tx_bytes: 33360
tx_unicast_packets: 556
tx_multicast_packets: 0
tx_broadcast_packets: 0
tx_dropped_packets: 0
tx_error_packets: 0

Thanks and Regards,
Mridula