Thread (6 messages) 6 messages, 2 authors, 2021-03-02

Re: [PATCH bpf-next v3 0/4] selftests/bpf: xsk improvements and new stats tests

From: Björn Töpel <hidden>
Date: 2021-03-02 10:39:14
Also in: bpf

On Tue, 23 Feb 2021 at 17:53, Ciara Loftus [off-list ref] wrote:
This series attempts to improve the xsk selftest framework by:
1. making the default output less verbose
2. adding an optional verbose flag to both the test_xsk.sh script and xdpxceiver app.
3. renaming the debug option in the app to to 'dump-pkts' and add a flag to the test_xsk.sh
script which enables the flag in the app.
4. changing how tests are launched - now they are launched from the xdpxceiver app
instead of the script.

Once the improvements are made, a new set of tests are added which test the xsk
statistics.

The output of the test script now looks like:

./test_xsk.sh
PREREQUISITES: [ PASS ]
1..10
ok 1 PASS: SKB NOPOLL
ok 2 PASS: SKB POLL
ok 3 PASS: SKB NOPOLL Socket Teardown
ok 4 PASS: SKB NOPOLL Bi-directional Sockets
ok 5 PASS: SKB NOPOLL Stats
ok 6 PASS: DRV NOPOLL
ok 7 PASS: DRV POLL
ok 8 PASS: DRV NOPOLL Socket Teardown
ok 9 PASS: DRV NOPOLL Bi-directional Sockets
ok 10 PASS: DRV NOPOLL Stats
# Totals: pass:10 fail:0 xfail:0 xpass:0 skip:0 error:0
XSK KSELFTESTS: [ PASS ]

v2->v3:
* Rename dump-pkts to dump_pkts in test_xsk.sh
* Add examples of flag usage to test_xsk.sh

v1->v2:
* Changed '-d' flag in the shell script to '-D' to be consistent with the xdpxceiver app.
* Renamed debug mode to 'dump-pkts' which better reflects the behaviour.
* Use libpf APIs instead of calls to ss for configuring xdp on the links
* Remove mutex init & destroy for each stats test
* Added a description for each of the new statistics tests
* Distinguish between exiting due to initialisation failure vs test failure

This series applies on commit d310ec03a34e92a77302edb804f7d68ee4f01ba0
Ciara, this slipped on my side! Apologies! This is much better, thanks
for working on it!

For the series:
Acked-by: Björn Töpel <redacted>

Ciara Loftus (3):
  selftests/bpf: expose and rename debug argument
  selftests/bpf: restructure xsk selftests
  selftests/bpf: introduce xsk statistics tests

Magnus Karlsson (1):
  selftest/bpf: make xsk tests less verbose

 tools/testing/selftests/bpf/test_xsk.sh    | 135 ++------
 tools/testing/selftests/bpf/xdpxceiver.c   | 380 +++++++++++++++------
 tools/testing/selftests/bpf/xdpxceiver.h   |  57 +++-
 tools/testing/selftests/bpf/xsk_prereqs.sh |  30 +-
 4 files changed, 342 insertions(+), 260 deletions(-)

--
2.17.1
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