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selftests: drv-net: test the napi init state

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Test that threaded state (in the persistent NAPI config) gets updated
even when NAPI with given ID is not allocated at the time.

This test is validating commit ccba9f6baa ("net: update NAPI threaded
config even for disabled NAPIs").

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Joe Damato <joe@dama.to>
Link: https://patch.msgid.link/20250815013314.2237512-1-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Jakub Kicinski 2025-08-14 18:33:14 -07:00 committed by Paolo Abeni
parent 730ff06d3f
commit 0283b8f134
1 changed files with 30 additions and 1 deletions
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31
tools/testing/selftests/drivers/net/napi_threaded.py
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@ -38,6 +38,34 @@ def _setup_deferred_cleanup(cfg) -> None:
return combined
def napi_init(cfg, nl) -> None:
"""
Test that threaded state (in the persistent NAPI config) gets updated
even when NAPI with given ID is not allocated at the time.
"""
qcnt = _setup_deferred_cleanup(cfg)
_set_threaded_state(cfg, 1)
cmd(f"ethtool -L {cfg.ifname} combined 1")
_set_threaded_state(cfg, 0)
cmd(f"ethtool -L {cfg.ifname} combined {qcnt}")
napis = nl.napi_get({'ifindex': cfg.ifindex}, dump=True)
for napi in napis:
ksft_eq(napi['threaded'], 'disabled')
ksft_eq(napi.get('pid'), None)
cmd(f"ethtool -L {cfg.ifname} combined 1")
_set_threaded_state(cfg, 1)
cmd(f"ethtool -L {cfg.ifname} combined {qcnt}")
napis = nl.napi_get({'ifindex': cfg.ifindex}, dump=True)
for napi in napis:
ksft_eq(napi['threaded'], 'enabled')
ksft_ne(napi.get('pid'), None)
def enable_dev_threaded_disable_napi_threaded(cfg, nl) -> None:
"""
Test that when napi threaded is enabled at device level and
@ -103,7 +131,8 @@ def main() -> None:
""" Ksft boiler plate main """
with NetDrvEnv(__file__, queue_count=2) as cfg:
ksft_run([change_num_queues,
ksft_run([napi_init,
change_num_queues,
enable_dev_threaded_disable_napi_threaded],
args=(cfg, NetdevFamily()))
ksft_exit()