[dpdk-dev] testpmd: not seeing any traffic on 1g (pair) or 10g pair

[Jayakumar, Muthurajan]

Hi,
Can you please run the following command with loopback cable between the ports
build/app/testpmd -c7 -n3 -- -i --nb-cores=2 --nb-ports=2
Thanks,

From: Al Patel [mailto:alps.oss at gmail.com]
Sent: Monday, August 25, 2014 9:36 AM
To: Jayakumar, Muthurajan
Cc: dev at dpdk.org
Subject: Re: [dpdk-dev] testpmd: not seeing any traffic on 1g (pair) or 10g pair

HI Jayakumar,

I did. I don' that unbind script in my version (I am using 1.6)
root at fe-ucs48:~/dpdk-1.6.0r1#<mailto:root at fe-ucs48:~/dpdk-1.6.0r1#> ./tools/pci_unbind.py --status

Network devices using IGB_UIO driver
====================================
0000:0e:00.0 '82599EB 10-Gigabit SFI/SFP+ Network Connection' drv=igb_uio unused=ixgbe
0000:0e:00.1 '82599EB 10-Gigabit SFI/SFP+ Network Connection' drv=igb_uio unused=ixgbe

Network devices using kernel driver
===================================
0000:08:00.0 '82576 Gigabit Network Connection' if=eth2 drv=igb unused=igb_uio
0000:08:00.1 '82576 Gigabit Network Connection' if=eth3 drv=igb unused=igb_uio
0000:14:00.0 '82576 Gigabit Network Connection' if=eth4 drv=igb unused=igb_uio *Active*
0000:14:00.1 '82576 Gigabit Network Connection' if=eth6 drv=igb unused=igb_uio

Other network devices
=====================
0000:05:00.0 '82576 Gigabit Network Connection' unused=igb,igb_uio
0000:05:00.1 '82576 Gigabit Network Connection' unused=igb,igb_uio


...
Checking link statuses...
Port 0 Link Up - speed 10000 Mbps - full-duplex
Port 1 Link Up - speed 10000 Mbps - full-duplex
Done
testpmd> show port stats all

  ######################## NIC statistics for port 0  ########################
  RX-packets: 0          RX-errors: 0         RX-bytes: 0
  TX-packets: 0          TX-errors: 0         TX-bytes: 0
  ############################################################################

  ######################## NIC statistics for port 1  ########################
  RX-packets: 0          RX-errors: 0         RX-bytes: 0
  TX-packets: 0          TX-errors: 0         TX-bytes: 0
  ############################################################################
testpmd>


testpmd> start tx_first
  io packet forwarding - CRC stripping disabled - packets/burst=16
  nb forwarding cores=2 - nb forwarding ports=2
  RX queues=1 - RX desc=128 - RX free threshold=0
  RX threshold registers: pthresh=8 hthresh=8 wthresh=4
  TX queues=1 - TX desc=512 - TX free threshold=0
  TX threshold registers: pthresh=36 hthresh=0 wthresh=0
  TX RS bit threshold=0 - TXQ flags=0x0
testpmd>


waited for a few seconds ...

testpmd> stop
Telling cores to stop...
Waiting for lcores to finish...

  ---------------------- Forward statistics for port 0  ----------------------
  RX-packets: 0              RX-dropped: 0             RX-total: 0
  TX-packets: 0              TX-dropped: 0             TX-total: 0
  ----------------------------------------------------------------------------

  ---------------------- Forward statistics for port 1  ----------------------
  RX-packets: 0              RX-dropped: 0             RX-total: 0
  TX-packets: 0              TX-dropped: 0             TX-total: 0
  ----------------------------------------------------------------------------

  +++++++++++++++ Accumulated forward statistics for all ports+++++++++++++++
  RX-packets: 0              RX-dropped: 0             RX-total: 0
  TX-packets: 0              TX-dropped: 0             TX-total: 0
  ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Done.
testpmd>


Looks like nothing is being sent/received.

Thanks
-a

On Mon, Aug 25, 2014 at 12:30 PM, Jayakumar, Muthurajan <muthurajan.jayakumar at intel.com<mailto:muthurajan.jayakumar at intel.com>> wrote:
Can you please do the following steps as in Quick start guide http://dpdk.org/doc/quick-start
Thanks,

Extract sources.
tar xf dpdk.tar.gz
cd dpdk
Build libraries and kernel module (Linux headers are needed).
make config T=x86_64-native-linuxapp-gcc
make
The next steps must be done as root.
Load kernel modules.
modprobe uio
insmod build/kmod/igb_uio.ko
Bind Intel devices to igb_uio.
tools/dpdk_nic_bind.py --bind=igb_uio $(tools/dpdk_nic_bind.py --status | sed -rn 's,.* if=([^ ]*).*igb_uio *$,\1,p')
Reserve huge pages memory.
mkdir -p /mnt/huge
mount -t hugetlbfs nodev /mnt/huge
echo 64 > /sys/devices/system/node/node0/hugepages/hugepages-2048kB/nr_hugepages
Set the highest frequency.
for gov in /sys/devices/system/cpu/*/cpufreq/scaling_governor ; do echo performance >$gov ; done
Run poll-mode driver test (with a cable between ports).
build/app/testpmd -c7 -n3 -- -i --nb-cores=2 --nb-ports=2

testpmd> show port stats all

  ######################## NIC statistics for port 0  ########################
  RX-packets: 0          RX-errors: 0         RX-bytes: 0
  TX-packets: 0          TX-errors: 0         TX-bytes: 0
  ############################################################################

  ######################## NIC statistics for port 1  ########################
  RX-packets: 0          RX-errors: 0         RX-bytes: 0
  TX-packets: 0          TX-errors: 0         TX-bytes: 0
  ############################################################################

testpmd> start tx_first

testpmd> stop

  ---------------------- Forward statistics for port 0  ----------------------
  RX-packets: 7139974        RX-dropped: 0             RX-total: 7139974
  TX-packets: 6699967        TX-dropped: 0             TX-total: 6699967
  ----------------------------------------------------------------------------

  ---------------------- Forward statistics for port 1  ----------------------
  RX-packets: 6699967        RX-dropped: 0             RX-total: 6699967
  TX-packets: 7139974        TX-dropped: 0             TX-total: 7139974
  ----------------------------------------------------------------------------

-----Original Message-----
From: dev [mailto:dev-bounces at dpdk.org<mailto:dev-bounces at dpdk.org>] On Behalf Of Al Patel
Sent: Monday, August 25, 2014 9:20 AM
To: dev at dpdk.org<mailto:dev at dpdk.org>
Subject: [dpdk-dev] testpmd: not seeing any traffic on 1g (pair) or 10g pair

Hi,

I am doing a basic test with testpmd per the getting started page.
I connected two 1g in back to back mode and executed:

 sudo ./build/app/testpmd -c 0xF -n 4 -- -i --portmask=0x2 --nb-cores=2

start (and start tx_first)
stop

I see 0 counters for rx/tx.

I removed the two 1g from uio driver and added two 10g 82599EB and reran the test - still 0 traffic.

Wondering where to debug.
thx