This series addresses a regression in ethtool flow steering where rules
targeting the default RSS context (context 0) were incorrectly rejected.
The default RSS context always exists but is not stored in the rss_ctx
xarray like additional contexts. The current validation logic was
checking for the existence of context 0 in this array, causing valid
flow steering rules to be rejected.
This prevented configurations such as:
- High priority rules directing specific traffic to the default context
- Low priority catch-all rules directing remaining traffic to additional
contexts
Patch 1 fixes the validation logic to skip the existence check for
context 0.
Patch 2 adds a selftest that verifies this behavior.
Changelog -
v1->v2: https://lore.kernel.org/all/20250225071348.509432-1-gal@nvidia.com/ (local)
* Reworded commit message.
* Added a selftest.
Gal Pressman (2):
net: ethtool: Don't check if RSS context exists in case of context 0
selftests: drv-net: rss_ctx: Add test for ntuple rules targeting
default RSS context
net/ethtool/ioctl.c | 3 +-
.../selftests/drivers/net/hw/rss_ctx.py | 59 ++++++++++++++++++-
2 files changed, 60 insertions(+), 2 deletions(-)
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2.40.1