Documentation/bpf/redirect.rst

25    :doc: xdp redirect
29     those that do, not all of them support non-linear frames. Non-linear xdp
41 The following bpftrace command can be used to capture and count all XDP tracepoints:
45     sudo bpftrace -e 'tracepoint:xdp:* { @cnt[probe] = count(); }'
49     @cnt[tracepoint:xdp:mem_connect]: 18
50     @cnt[tracepoint:xdp:mem_disconnect]: 18
51     @cnt[tracepoint:xdp:xdp_exception]: 19605
52     @cnt[tracepoint:xdp:xdp_devmap_xmit]: 1393604
53     @cnt[tracepoint:xdp:xdp_redirect]: 22292200
56     The various xdp tracepoints can be found in ``source/include/trace/events/xdp.h``
64     'tracepoint:xdp:xdp_redirect*_err {@redir_errno[-args->err] = count();}
65     tracepoint:xdp:xdp_devmap_xmit {@devmap_errno[-args->err] = count();}'
73     perf record -a -e xdp:xdp_redirect_err \
74         -e xdp:xdp_redirect_map_err \
75         -e xdp:xdp_exception \
76         -e xdp:xdp_devmap_xmit
81 - https://github.com/xdp-project/xdp-tutorial/tree/master/tracing02-xdp-monitor