On Tue, 2021-12-14 at 14:12 +0000, Ronan Randles wrote: > This patchset introduces a Gen library for DPDK. This library provides an easy > way to generate traffic in order to test software based network components. > > This library enables the basic functionality required in the traffic > generator. > This includes: raw data setting, packet Tx and Rx, creation and destruction > of a > Gen instance and various types of data parsing. > This functionality is implemented in "lib/gen/rte_gen.c". IPv4 parsing > functionality is also added in "lib/net/rte_ip.c", this is then used in the > gen > library. > > A sample app is included in "examples/generator" which shows the use of the > gen > library in making a traffic generator. This can be used to generate traffic by > running the dpdk-generator generator executable. This sample app supports > runtime stats reporting (/gen/stats) and line rate limiting > (/gen/mpps,<target traffic rate in mpps>) through telemetry.py. > > As more features are added to the gen library, the sample application will > become more powerful through the "/gen/packet" string parameter > (currently supports IP and Ether address setting). This will allow every > application to generate more complex traffic types in the future without > changing API.
A good start, thanks. Testpmd can do txonly, rxonly, forwarding, but no rx+tx only :) I guess that's the key of a GEN. testpmd also has "--stats-period" to show statistics in non-interactive mode, very close to a GEN, but not enough. Testpmd can toggle a lot of settings like offloading, that's an advantage. Do you see an chance to make the lib part of testpmd? I tried to leverage Scapy syntax into testpmd [1][2]: to set fancy template - useful to test flows, or dump packet using different scapy detail level. unfotunately I don't have time to finish it. Parsing packet from string is boring, any consideration on this? [1]: https://github.com/steevenlee/dpdk/commits/upstream_scapy [2]: doc https://github.com/steevenlee/dpdk/blob/875b8407f769465837513d29a495af3cc1a29765/doc/guides/howto/scapy.rst > > Harry van Haaren (6): > gen: add files for initial traffic generation library > gen: add basic Rx and Tx routines and tests > gen: add raw packet data API and tests > gen: add parsing infrastructure and Ether protocol > gen: add gen IP parsing > examples/generator: import code from basicfwd.c > > Ronan Randles (6): > net: add string to IPv4 parse function > net: add function to pretty print IPv4 > examples/generator: enable gen library for traffic gen > examples/generator: telemetry support > examples/generator: link status check added > examples/generator: line rate limiting > > app/test/meson.build | 4 + > app/test/test_gen.c | 184 +++++++++++ > app/test/test_net.c | 87 ++++++ > doc/api/doxy-api-index.md | 3 +- > doc/api/doxy-api.conf.in | 1 + > examples/generator/main.c | 483 ++++++++++++++++++++++++++++ > examples/generator/meson.build | 13 + > examples/meson.build | 1 + > lib/gen/meson.build | 6 + > lib/gen/rte_gen.c | 553 +++++++++++++++++++++++++++++++++ > lib/gen/rte_gen.h | 114 +++++++ > lib/gen/version.map | 10 + > lib/meson.build | 1 + > lib/net/meson.build | 1 + > lib/net/rte_ip.c | 58 ++++ > lib/net/rte_ip.h | 38 +++ > lib/net/version.map | 9 + > 17 files changed, 1565 insertions(+), 1 deletion(-) > create mode 100644 app/test/test_gen.c > create mode 100644 app/test/test_net.c > create mode 100644 examples/generator/main.c > create mode 100644 examples/generator/meson.build > create mode 100644 lib/gen/meson.build > create mode 100644 lib/gen/rte_gen.c > create mode 100644 lib/gen/rte_gen.h > create mode 100644 lib/gen/version.map > create mode 100644 lib/net/rte_ip.c >
