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From: Mridula V Gangadharan <mgangadhar@sandvine.com>
To: "dev@dpdk.org" <dev@dpdk.org>
Thread-Topic: i40evf: Problem with the statistics
Thread-Index: AdP4Hc9uDkLvqGkeTF2+tmQeXWEpggAqVT8g
Date: Thu, 31 May 2018 10:07:28 +0000
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Subject: [dpdk-dev] i40evf: Problem with the statistics
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Hi,

I am testing packet drops scenario by setting the MTU size.
My setup have i40evf driver. I set the dpdk interface's MTU size to 1800.
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.
There are no drop counters incrementing. Also my application is not recievi=
ng any packets.
Is there some issue with dpdk statistics?
xstats  output is as follows. It is not showing any drops but rx_good_bytes=
 counts are incrementing.

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

NIC extended statistics for port 1
####################################################
rx_good_packets: 656
tx_good_packets: 556
rx_good_bytes: 225160
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