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 <martin.weiser at allegro-packets.com> 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
