selftests: drv-net: rss: Add retries to test_rss_key_indir to reduce flakes

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The test generates 16 flows, and verifies that traffic is distributed
across two queues via the NICs RSS indirection table. The likelihood of the
flows skewing to a single queue is high, so we retry sending traffic up to
3 times.

Alternatively, we could increase the number of generated flows. But
debug kernels may struggle to ramp this many flows.

During manual testing, the test passed for 10,000 consecutive runs.

Signed-off-by: Dimitri Daskalakis <dimitri.daskalakis1@gmail.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Link: https://patch.msgid.link/20260309204215.2110486-1-dimitri.daskalakis1@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Dimitri Daskalakis 2026-03-09 13:42:15 -07:00 • committed by Jakub Kicinski

parent 7da62262ec

commit 690043b95c

1 changed files with 23 additions and 6 deletions

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tools/testing/selftests/drivers/net/hw/rss_ctx.py

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