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selftests: drv-net: give HW stats sync time extra 25% of margin

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There are transient failures for devices which update stats
periodically, especially if it's the FW DMA'ing the stats
rather than host periodic work querying the FW. Wait 25%
longer than strictly necessary.

For devices which don't report stats-block-usecs we retain
25 msec as the default wait time (0.025sec == 20,000usec * 1.25).

Reviewed-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20260318033819.1469350-3-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski
2026-03-17 20:38:15 -07:00
parent 8888bf4fb9
commit 9b29afa116
1 changed files with 2 additions and 2 deletions
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4
tools/testing/selftests/drivers/net/lib/py/env.py
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@@ -288,8 +288,8 @@ class NetDrvEpEnv(NetDrvEnvBase):
if "Operation not supported" not in e.cmd.stderr:
raise
self._stats_settle_time = 0.025 + \
data.get('stats-block-usecs', 0) / 1000 / 1000
self._stats_settle_time = \
1.25 * data.get('stats-block-usecs', 20000) / 1000 / 1000
time.sleep(self._stats_settle_time)