[dpdk-dev] EAL: No probed ethernet devices

[Vaibhav Sood]

Hi,

I am running the DPDK test suite (DTS) in a VM and I see a lot of the test cases failing when running the testpmd application

I manually run the testpmd application as follows and I see this error:

test at pts00606-vm2:~/dpdk-16.04$ sudo ./ppc_64-power8-linuxapp-gcc/app/testpmd -c 1 -n 4  -- -i --max-pkt-len=9000 --port-topology=loop --txqflags=0
EAL: Detected lcore 0 as core 0 on socket 0
EAL: Detected lcore 1 as core 8 on socket 0
EAL: Detected lcore 2 as core 16 on socket 0
EAL: Detected lcore 3 as core 24 on socket 0
EAL: Support maximum 256 logical core(s) by configuration.
EAL: Detected 4 lcore(s)
EAL: Probing VFIO support...
EAL:   IOMMU type 1 (Type 1) is not supported
EAL:   IOMMU type 8 (No-IOMMU) is not supported
EAL:   no supported IOMMU extensions found!
EAL: VFIO support could not be initialized
EAL: Setting up physically contiguous memory...
EAL: Ask a virtual area of 0x1000000 bytes
EAL: Virtual area found at 0x3fff7f000000 (size = 0x1000000)
EAL: Ask a virtual area of 0xf0000000 bytes
EAL: Virtual area found at 0x3ffe90000000 (size = 0xf0000000)
EAL: Ask a virtual area of 0xf000000 bytes
EAL: Virtual area found at 0x3fff71000000 (size = 0xf000000)
EAL: Requesting 256 pages of size 16MB from socket 0
EAL: TSC frequency is ~511999 KHz
EAL: Master lcore 0 is ready (tid=80815f20;cpuset=[0])
EAL: No probed ethernet devices
PANIC in main():
Empty set of forwarding logical cores - check the core mask supplied in the command parameters
5: [/lib/powerpc64le-linux-gnu/libc.so.6(__libc_start_main+0xb4) [0x3fff80473734]]
4: [/lib/powerpc64le-linux-gnu/libc.so.6(+0x23500) [0x3fff80473500]]
3: [./ppc_64-power8-linuxapp-gcc/app/testpmd(main+0x7f8) [0x100214d8]]
2: [./ppc_64-power8-linuxapp-gcc/app/testpmd(__rte_panic+0x80) [0x10020994]]
1: [./ppc_64-power8-linuxapp-gcc/app/testpmd(rte_dump_stack+0x40) [0x100881d0]]

My VM has 3 interfaces and as per the docs I loaded the uio_pci_generic driver and did a bind for one of the 3 interfaces

sudo modprobe uio_pci_generic

sudo ./tools/dpdk_nic_bind.py --bind=uio_pci_generic 0000:00:05.0

test at pts00606-vm2:~/dpdk-16.04$ ./tools/dpdk_nic_bind.py --status

Network devices using DPDK-compatible driver
============================================
0000:00:05.0 'Virtio network device' drv=uio_pci_generic unused=vfio-pci

Network devices using kernel driver
===================================
0000:00:01.0 'Virtio network device' if= drv=virtio-pci unused=vfio-pci,uio_pci_generic
0000:00:06.0 'Virtio network device' if= drv=virtio-pci unused=vfio-pci,uio_pci_generic

Other network devices
=====================
<none>

I am not sure why I see the "EAL: No probed ethernet devices" after following these steps. Any insights or pointers to this would really help

Thanks a lot!

Regards,
Vaibhav


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