linux/samples
Jesper Dangaard Brouer 417f1d9f21 samples/bpf: xdp_monitor include cpumap tracepoints in monitoring
The xdp_redirect_cpu sample have some "builtin" monitoring of the
tracepoints for xdp_cpumap_*, but it is practical to have an external
tool that can monitor these transpoint as an easy way to troubleshoot
an application using XDP + cpumap.

Specifically I need such external tool when working on Suricata and
XDP cpumap redirect. Extend the xdp_monitor tool sample with
monitoring of these xdp_cpumap_* tracepoints.  Model the output format
like xdp_redirect_cpu.

Given I needed to handle per CPU decoding for cpumap, this patch also
add per CPU info on the existing monitor events.  This resembles part
of the builtin monitoring output from sample xdp_rxq_info.  Thus, also
covering part of that sample in an external monitoring tool.

Performance wise, the cpumap tracepoints uses bulking, which cause
them to have very little overhead.  Thus, they are enabled by default.

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-01-20 02:10:55 +01:00
..
auxdisplay License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
blackfin samples: move blackfin gptimers-example from Documentation 2016-10-10 07:12:02 -06:00
bpf samples/bpf: xdp_monitor include cpumap tracepoints in monitoring 2018-01-20 02:10:55 +01:00
configfs configfs: make config_item_type const 2017-10-19 16:15:15 +02:00
connector A relatively calm cycle for the docs tree again. 2017-11-13 08:25:06 -08:00
hidraw kbuild: remove all dummy assignments to obj- 2017-11-18 11:46:06 +09:00
hw_breakpoint
kdb
kfifo kfifo: clean up example to not use page_link 2017-07-12 16:26:01 -07:00
kobject samples/kobject: be explicit in the module license 2015-03-25 13:41:42 +01:00
kprobes Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-13 13:05:08 -08:00
livepatch livepatch: add (un)patch callbacks 2017-10-19 10:08:56 +02:00
mei License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mic/mpssd Merge branch 'linus' into locking/core, to resolve conflicts 2017-11-07 10:32:44 +01:00
pktgen Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-04 09:26:51 +09:00
rpmsg rpmsg: Allow callback to return errors 2016-09-08 22:15:25 -07:00
seccomp kbuild: remove all dummy assignments to obj- 2017-11-18 11:46:06 +09:00
sockmap kbuild: remove all dummy assignments to obj- 2017-11-18 11:46:06 +09:00
statx kbuild: remove all dummy assignments to obj- 2017-11-18 11:46:06 +09:00
timers License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
trace_events Merge branch 'for-linus' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2017-11-15 10:14:11 -08:00
trace_printk tracing: Add trace_printk sample code 2016-06-20 09:54:21 -04:00
uhid kbuild: remove all dummy assignments to obj- 2017-11-18 11:46:06 +09:00
v4l [media] media: v4l2-pci-skeleton: Fix error handling path in 'skeleton_probe()' 2017-10-04 16:55:02 -03:00
vfio-mdev vfio-mdev/samples: make mdev_fops const and static 2017-10-02 12:40:05 -06:00
watchdog License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig livepatch: introduce shadow variable API 2017-09-14 23:06:12 +02:00
Makefile statx: Add a system call to make enhanced file info available 2017-03-02 20:51:15 -05:00