Deploy eUPF with eBPF CNI (Cilium or Calico)

[pirog-spb]

Acceptance criteria:

• Enable Calico ebpf CNI
• Verify UPF 0-scenario (both generic and native attach modes)
• Make perf tests

[kouamdo]

well , ... i want to try it too 👍 and i will do it

[mbaran0v]

Calico BPF dataplane doesn't support SCTP https://docs.tigera.io/calico/latest/operations/ebpf/enabling-ebpf#not-supported
Clilcim support SCTP in beta https://docs.cilium.io/en/latest/configuration/sctp/

SCTP need for connection between gnb and AMF

[mbaran0v]

after testing with Cilium, we have:

• open5gs core start and works
• gnb connects to AMF successfully
• ue connects to upf and get IP address
• traffic from UE doesn't pass to internet

# cilium monitor -t drop
Listening for events on 4 CPUs with 64x4096 of shared memory
Press Ctrl-C to quit
level=info msg="Initializing dissection cache..." subsys=monitor
xx drop (Invalid source ip) flow 0x0 to endpoint 0, ifindex 16, file bpf_lxc.c:1328, , identity 28789->unknown: 10.11.0.2 -> 1.1.1.1 EchoRequest
xx drop (Invalid source ip) flow 0x0 to endpoint 0, ifindex 16, file bpf_lxc.c:1328, , identity 28789->unknown: 10.11.0.2 -> 1.1.1.1 EchoRequest
xx drop (Invalid source ip) flow 0x0 to endpoint 0, ifindex 16, file bpf_lxc.c:1328, , identity 28789->unknown: 10.11.0.2 -> 1.1.1.1 EchoRequest