kangjie

Trace skb with fragments.

1

Some NIC driver may also put packet header(IP/TCP header) in skb non-linear area(frags). in this case, packet related information(e.g. IP/port) cannot be retrieved from linear data area. `bpf_skb_load_bytes()` can load...

When using fq, we rely on xstats useful metrics to check fq behavior and diangosis, it is what can be seen from iproute2 tools, `tc -s qdisc show` as well....