Hello

I wonder if it is possible for a DPDK application using the memif feature to communicate with a native Linux application?

I have tried to create a Docker container and start the image by:

docker run -ti --privileged -v "/mnt/huge:/mnt/huge" -v "/var/run:/var/run" -v "/tmp:/tmp" -v "/run:/run" -v "/sys:/sys" -v "/dev:/dev" testpmd /bin/bash

In this container I start the dpdk-testpmd application in server mode by:

./dpdk-testpmd -l 1-2  --no-pci  --proc-type=primary --file-prefix=td1 --vdev=net_memif,role=server,mac=00:00:00:00:00:01 -- -i

From a UNIX shell in the same server I start the dpdk-testpmd in client mode:

sudo ./dpdk-testpmd -l 3-4  --no-pci --proc-type=primary --file-prefix=td2 --vdev=net_memif,zero-copy=yes,mac=00:00:00:00:00:02 --single-file-segments -- -i

This results in the following error message on the client side:

. . .

Configuring Port 0 (socket 0)
memif_connect_client(): Failed to connect socket: /run/memif.sock.
Fail to start port 0

. . .

If I start both sides in a UNIX shell, the client can connect to the server.

Do you know what can be the fault when executing in a Docker container and in a UNIX shell for communication using the DPDK memif feature?

Thanks

Staffan