dpdk driver with containers

[RahulG115]

HI ,
i have deployed the 2 containers with dpdk driver but i am unable to find out which device is used by whch container ,
can you just help me to which dpdk driver i was bounded to as in dpdk tools i am seeing both the devices intact to our dpdk driver.

[rhlyadav]

i am facing the same

[uabfra]

Me too, I have some difficulties sorting this thing out. Usually you know that the order of plugins is retained as net0, net1..., but here we dont have any visible kernel devices. Under /dev/vfio I can find some number, and if I run priviliged mode, I'll se all the vfio sriov on the blade. I need to have a mapping between netX and pci-addr at least. I'm thinking of using the network annotation for the pod, to put the data there. or if I in someway can create a file in the container from the cni plugin???

[rkamudhan]

We are working in SRIOV network device plugin, which uses SRIOV CNI. The plan is to provide strong isolation of the device. The intermediate solution is available in the DPDK CNI.

[uabfra]

The problem for me is that if I have more then one network (via multus) there is no way of finding out the which network (according to pod spec. ie. net0, net1 ...), because all I can see is a bunch of pci devices under vfio-pci. What I done is to add the creation of a dummy eth device, to carry info about mac address and pci addr vs the assigned dev name:

/ # ip -d link show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 promiscuity 0 addrgenmode eui64 numtxqueues 1 numrxqueues 1 gso_max_size 65536 gso_max_segs 65535
2: tunl0@NONE: mtu 1480 qdisc noop state DOWN mode DEFAULT group default qlen 1000
link/ipip 0.0.0.0 brd 0.0.0.0 promiscuity 0
ipip remote any local any ttl inherit nopmtudisc numtxqueues 1 numrxqueues 1 gso_max_size 65536 gso_max_segs 65535
4: eth0@if565: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default
link/ether 52:73:5d:96:ac:1f brd ff:ff:ff:ff:ff:ff link-netnsid 0 promiscuity 0
veth addrgenmode eui64 numtxqueues 1 numrxqueues 1 gso_max_size 65536 gso_max_segs 65535
5: net0: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN mode DEFAULT group default
link/ether 72:36:25:32:7f:0c brd ff:ff:ff:ff:ff:ff promiscuity 0
dummy addrgenmode eui64 numtxqueues 1 numrxqueues 1 gso_max_size 65536 gso_max_segs 65535
alias vfio@0000:04:10.5
6: net1: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN mode DEFAULT group default
link/ether 62:76:8f:d6:85:b0 brd ff:ff:ff:ff:ff:ff promiscuity 0
dummy addrgenmode eui64 numtxqueues 1 numrxqueues 1 gso_max_size 65536 gso_max_segs 65535
alias vfio@0000:04:10.7