Add a test for exercising driver memory allocation failure paths.
page pool is a bit tricky to inject errors into at the page allocator
level because of the bulk alloc and recycling, so add explicit error
injection support "in front" of the caches.
Add a test to exercise that using only the standard APIs.
This is the first useful test for the new tests with an endpoint.
There's no point testing netdevsim here, so this is also the first
HW-only test in Python.
I'm not super happy with the traffic generation using iperf3,
my initial approach was to use mausezahn. But it turned out to be
5x slower in terms of PPS. Hopefully this is good enough for now.
Jakub Kicinski (6):
net: page_pool: support error injection
selftests: drv-net-hw: support using Python from net hw tests
selftests: net: py: extract tool logic
selftests: net: py: avoid all ports < 10k
selftests: drv-net: support generating iperf3 load
selftests: drv-net-hw: add test for memory allocation failures with
page pool
net/core/page_pool.c | 2 +
tools/testing/selftests/Makefile | 2 +-
.../testing/selftests/drivers/net/hw/Makefile | 2 +
.../drivers/net/hw/lib/py/__init__.py | 16 +++
.../selftests/drivers/net/hw/pp_alloc_fail.py | 129 ++++++++++++++++++
.../selftests/drivers/net/lib/py/__init__.py | 1 +
.../selftests/drivers/net/lib/py/env.py | 10 +-
.../selftests/drivers/net/lib/py/load.py | 41 ++++++
tools/testing/selftests/net/lib/py/ksft.py | 4 +
tools/testing/selftests/net/lib/py/utils.py | 14 +-
10 files changed, 214 insertions(+), 7 deletions(-)
create mode 100644 tools/testing/selftests/drivers/net/hw/lib/py/__init__.py
create mode 100755 tools/testing/selftests/drivers/net/hw/pp_alloc_fail.py
create mode 100644 tools/testing/selftests/drivers/net/lib/py/load.py
--
2.44.0
