[dpdk-users] Can't start DPDK applications on Mellanox ConnectX-4 card

[Sebastian Bernauer]

Hello DPDK team,

I have 2 Mellanox ConnectX-4 MCX415A-CCAT cards connected with DAC (firmware 12.26.4012). Im using debian stretch and DPDK 19.11.
If i try to start DPDK-applications i get the following error:

sbernauer at he37:~$ lspci | grep Mellanox
04:00.0 Ethernet controller: Mellanox Technologies MT27700 Family [ConnectX-4]
42:00.0 Network controller: Mellanox Technologies MT27500 Family [ConnectX-3]

sbernauer at he37:~$ sudo dpdk-19.11/examples/l2fwd/build/app/l2fwd -w 04:00.0 -- -p 0x1
EAL: Detected 40 lcore(s)
EAL: Detected 2 NUMA nodes
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: No available hugepages reported in hugepages-1048576kB
EAL: Probing VFIO support...
EAL: PCI device 0000:04:00.0 on NUMA socket 0
EAL:   probe driver: 15b3:1013 net_mlx5
MAC updating enabled
Notice: odd number of ports in portmask.
Lcore 0: RX port 0
Initializing port 0... EAL: Error - exiting with code: 1
  Cause: rte_eth_dev_start:err=-12, port=0

I can't find a description of the error code -12, can you please give my a hint whats my problem?

Thanks a lot!
Sebastian