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

[Jayakumar, Muthurajan]

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] On Behalf Of Al Patel
Sent: Monday, August 25, 2014 9:20 AM
To: 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