net_virtio_user driver support

[Daniele Zulberti]

Hi,

I'm trying to run trex in a Kubernetes cluster.

I have a master node and a worker node. In the worker is running OvS-DPDK and I have one pod with a trex container that is connected with Userspace CNI and Multus to OvS.

The interface is a net_virtio_user.

I'm getting this error from trex:

$ ./t-rex-64 -i --no-scapy-server --nc --no-watchdog
The ports are bound/configured.
Starting  TRex v2.86 please wait  ...
EAL:   cannot open VFIO container, error 2 (No such file or directory)
update_memory_region(): Failed to get fd, ms=0x100033000 rte_errno=95
update_memory_region(): Failed to get fd, ms=0x100033000 rte_errno=95

Error: driver net_virtio_user is not supported. Please consult the documentation for a list of supported drivers


-------------------Configuration file---------------------

trex_cfg.yaml:

- port_limit    : 2
  version       : 2
  interfaces    : ["--vdev=virtio_user0,path=/usrspcni/74ab18eb76f8-net1", "--vdev=virtio_user1,path=/usrspcni/74ab18eb76f8-net2"]   # list of the interfaces
  port_info       :  # set eth mac addr
          - dest_mac        :   "3c:fd:fe:b4:41:09"  # port 0
            src_mac         :   "3c:fd:fe:b4:41:08"
          - dest_mac        :   "3c:fd:fe:b4:41:08"  # port 1
            src_mac         :   "3c:fd:fe:b4:41:09"

Is it possible to use this type of interface or it isn't supported at all?

Thanks,

Daniele

[hanoh haim]

Hi, 

You should provide the PCI addr of the virtio 

 ```interfaces: ['00:04.0', '00:0a.0']```
 

[Daniele Zulberti]

Thank you for the reply,

virtio_user does not have PCI-IDs, it uses socketfiles.

[hanoh haim]

I’m not sure we added the driver files. 

Thanks

Hanoh

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