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ae7b0948f9
Only strip BTF info when TC don't have libbpf support. Signed-off-by: Jesper Dangaard Brouer <netoptimizer@brouer.com>
BPF testing packet size changes
Playing with increasing packet size with TC-BPF. Testing what happens when sending packets larger that MTU out an interface.
Notes loading BPF object
How to manually load TC program:
export DEV=mlx5p1
tc qdisc del dev "$DEV" clsact # Also deletes all filters
tc qdisc add dev "$DEV" clsact
tc filter add dev "$DEV" pref 1 handle 1 egress bpf da obj tc_bpf_inc_pkt_size.o
tc filter show dev "$DEV" egress
Be VERY careful with replace command, it MUST have same pref +=handle=:
tc filter replace dev "$DEV" pref 1 handle 1 egress bpf da obj tc_bpf_inc_pkt_size.o