knot with xdp
Hi, I am using knot-3.0.0 now. And I just find xdp is supported for it. Is there any suggested configuration for it? I find I got something wrong.
env: debain 10, kernel-5.4.56. nic mlx5
configuration:
server:
edns-client-subnet: true
rundir: /usr/local/run/knot
listen-xdp: eth0@53
when knotd start, error is like this:
libbpf: failed to create map (name: 'xsks_map'): Invalid argument(-22)
libbpf: failed to load object '7f1a5e7b3100-698'
More questions:
1, Is bpf-kernel-obj.c generated from bpf-kernel.o? I find it never changed or covered in my environment.
2, If bpf-kernel-obj.c is not generated, how do you get bpf_kernel_o[]?