[dpdk-users] No packets exchanged with loopback testpmd test

Olivier Deme odeme at druidsoftware.com
Wed Oct 24 12:20:30 CEST 2018


Hi,

I'm trying to setup a basic loopback test with testpmd and an XL710 card.
I have a looped back both ports of the NIC.

Here is how I am running testpmd:


testpmd -l 1,2,3 -n 2 -- -i
EAL: Detected 36 lcore(s)
EAL: No free hugepages reported in hugepages-1048576kB
EAL: Probing VFIO support...
EAL: PCI device 0000:18:00.0 on NUMA socket 0
EAL:   probe driver: 8086:1583 net_i40e
EAL: PCI device 0000:18:00.1 on NUMA socket 0
EAL:   probe driver: 8086:1583 net_i40e
EAL: PCI device 0000:3d:00.0 on NUMA socket 0
EAL:   probe driver: 8086:37d2 net_i40e
EAL: PCI device 0000:3d:00.1 on NUMA socket 0
EAL:   probe driver: 8086:37d2 net_i40e
EAL: PCI device 0000:af:00.0 on NUMA socket 1
EAL:   probe driver: 8086:1583 net_i40e
EAL: PCI device 0000:af:00.1 on NUMA socket 1
EAL:   probe driver: 8086:1583 net_i40e
Interactive-mode selected
USER1: create a new mbuf pool <mbuf_pool_socket_0>: n=163456, size=2176,
socket=0
USER1: create a new mbuf pool <mbuf_pool_socket_1>: n=163456, size=2176,
socket=1
Configuring Port 0 (socket 0)
Port 0: 3C:FD:FE:B5:63:50
Configuring Port 1 (socket 0)
Port 1: 3C:FD:FE:B5:63:51
Checking link statuses...
Done
testpmd>
Port 0: LSC event

Port 1: LSC event
#
testpmd>
testpmd> start
io packet forwarding - ports=2 - cores=1 - streams=2 - NUMA support
enabled, MP over anonymous pages disabled
Logical Core 2 (socket 0) forwards packets on 2 streams:
  RX P=0/Q=0 (socket 0) -> TX P=1/Q=0 (socket 0) peer=02:00:00:00:00:01
  RX P=1/Q=0 (socket 0) -> TX P=0/Q=0 (socket 0) peer=02:00:00:00:00:00

  io packet forwarding - CRC stripping enabled - packets/burst=32
  nb forwarding cores=1 - nb forwarding ports=2
  RX queues=1 - RX desc=128 - RX free threshold=32
  RX threshold registers: pthresh=8 hthresh=8 wthresh=0
  TX queues=1 - TX desc=512 - TX free threshold=32
  TX threshold registers: pthresh=32 hthresh=0 wthresh=0
  TX RS bit threshold=32 - TXQ flags=0xf01
testpmd>
testpmd>
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.


Am I missing something?

Thanks,
Olivier


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