Update README, mainly add a new section with a brief descriptions and
some examples of the output formats.
Also, update the files and maps list to reflect recent changes (BPF
programs can now push flow-events, and the map rtt_events has been
renamed to just events.
Signed-off-by: Simon Sundberg <simon.sundberg@kau.se>
Add per-flow tracking of number of packets and bytes
sent/received. Add these to the JSON output format.
Also update README regarding concurrency issue when updating these
statistics.
Signed-off-by: Simon Sundberg <simon.sundberg@kau.se>
Also, remove comments about concurrency issues from code in
pping_kern.c as it is now documented in README.
Signed-off-by: Simon Sundberg <simon.sundberg@kau.se>
Update documentation to reflect the current state of pping (after
merging pping_kern_tc and pping_kern_xdp into a single file).
Also add another point to the TODO list that has been discussed at a
previous meeting.
Signed-off-by: Simon Sundberg <simon.sundberg@kau.se>
Update the README, the pping diagram (eBPF_pping_design.png) and TODO
to be more up to date with the current implementation.
Signed-off-by: Simon Sundberg <simon.sundberg@kau.se>
The link to the original pping utility was easy to miss, and we didn't
credit Kathie with its implementation. That was clearly an oversight, so
let's fix that.
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Perform various fixes and tweaks:
- Rename several defines to make them more informative
- Remove unrolling of loop in BPF programs
- Reuse defines for program sections between userspace and kernel
space programs
- Perform fork+exec to run bpf_egress_loader script instead of
system()
- Add comment to copied scripts indicating I've modified them
- Add pping.h and pping_helpers.h as dependencies in Makefile
Also, add a brief description of what PPing is and how it works to
README
Signed-off-by: Simon Sundberg <simon.sundberg@kau.se>
