kernel/linux.git/tools/testing/selftests/drivers/net/hw, branch v6.12.80

selftests: drv-net: rss_ctx: make the test pass with few queues

2025-11-13T20:34:18+00:00

[ Upstream commit e2cf2d5baa09248d3d50b73522594b778388e3bc ] rss_ctx.test_rss_key_indir implicitly expects at least 5 queues, as it checks that the traffic on first 2 queues is lower than the remaining queues when we use all queues. Special case fewer queues. Reviewed-by: Simon Horman Link: https://patch.msgid.link/20250901173139.881070-2-kuba@kernel.org Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin

selftests: drv-net: rss_ctx: fix the queue count check

2025-11-13T20:34:16+00:00

[ Upstream commit c158b5a570a188b990ef10ded172b8b93e737826 ] Commit 0d6ccfe6b319 ("selftests: drv-net: rss_ctx: check for all-zero keys") added a skip exception if NIC has fewer than 3 queues enabled, but it's just constructing the object, it's not actually rising this exception. Before: # Exception| net.lib.py.utils.CmdExitFailure: Command failed: ethtool -X enp1s0 equal 3 hkey d1:cc:77:47:9d:ea:15:f2:b9:6c:ef:68:62:c0:45:d5:b0:99:7d:cf:29:53:40:06:3d:8e:b9:bc:d4:70:89:b8:8d:59:04:ea:a9:c2:21:b3:55:b8:ab:6b:d9:48:b4:bd:4c:ff:a5:f0:a8:c2 not ok 1 rss_ctx.test_rss_key_indir After: ok 1 rss_ctx.test_rss_key_indir # SKIP Device has fewer than 3 queues (or doesn't support queue stats) Reviewed-by: Simon Horman Link: https://patch.msgid.link/20250827173558.3259072-1-kuba@kernel.org Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin

selftests: drv-net: csum: fix interface name for remote host

2025-09-09T16:58:08+00:00

[ Upstream commit 49c2502b5946ebf454d7e16fd0189769a82b6117 ] Use cfg.remote_ifname for arguments of remote command. Without this UDP tests fail in NIPA where local interface is called enp1s0 and remote enp0s4. Fixes: 1d0dc857b5d8 ("selftests: drv-net: add checksum tests") Reviewed-by: Willem de Bruijn Reviewed-by: Vadim Fedorenko Link: https://patch.msgid.link/20250830183842.688935-1-kuba@kernel.org Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin

selftests: drv-net: rss_ctx: test dumping RSS contexts

2024-08-12T13:16:25+00:00

Add a test for dumping RSS contexts. Make sure indir table and key are sane when contexts are created with various combination of inputs. Test the dump filtering by ifname and start-context. Reviewed-by: Petr Machata Reviewed-by: Edward Cree Signed-off-by: Jakub Kicinski Signed-off-by: David S. Miller

selftests: drv-net: rss_ctx: add identifier to traffic comments

2024-08-12T13:16:23+00:00

Include the "name" of the context in the comment for traffic checks. Makes it easier to reason about which context failed when we loop over 32 contexts (it may matter if we failed in first vs last, for example). Reviewed-by: Gal Pressman Reviewed-by: Joe Damato Signed-off-by: Jakub Kicinski Signed-off-by: David S. Miller

selftests: net: ksft: replace 95 with errno.EOPNOTSUPP

2024-08-02T23:09:27+00:00

Petr suggested to use errno.EOPNOTSUPP instead of hard-coded 95 in the new test case. Adjust existing ones to match this style. Signed-off-by: Stanislav Fomichev Link: https://patch.msgid.link/20240802000309.2368-3-sdf@fomichev.me Signed-off-by: Jakub Kicinski

selftests: drv-net: rss_ctx: check for all-zero keys

2024-07-29T09:59:08+00:00

We had a handful of bugs relating to key being either all 0 or just reported incorrectly as all 0. Check for this in the tests. Signed-off-by: Jakub Kicinski Reviewed-by: Petr Machata Signed-off-by: David S. Miller

selftests: drv-net: rss_ctx: test flow rehashing without impacting traffic

2024-07-09T23:31:18+00:00

Some workloads may want to rehash the flows in response to an imbalance. Most effective way to do that is changing the RSS key. Check that changing the key does not cause link flaps or traffic disruption. Disrupting traffic for key update is not incorrect, but makes the key update unusable for rehashing under load. Reviewed-by: Willem de Bruijn Link: https://patch.msgid.link/20240708213627.226025-6-kuba@kernel.org Signed-off-by: Jakub Kicinski

selftests: drv-net: rss_ctx: check behavior of indirection table resizing

2024-07-09T23:31:18+00:00

Some devices dynamically increase and decrease the size of the RSS indirection table based on the number of enabled queues. When that happens driver must maintain the balance of entries (preferably duplicating the smaller table). Reviewed-by: Willem de Bruijn Link: https://patch.msgid.link/20240708213627.226025-5-kuba@kernel.org Signed-off-by: Jakub Kicinski

selftests: drv-net: rss_ctx: test queue changes vs user RSS config

2024-07-09T23:31:00+00:00

By default main RSS table should change to include all queues. When user sets a specific RSS config the driver should preserve it, even when queue count changes. Driver should refuse to deactivate queues used in the user-set RSS config. For additional contexts driver should still refuse to deactivate queues in use. Whether the contexts should get resized like context 0 when queue count increases is a bit unclear. I anticipate most drivers today don't do that. Since main use case for additional contexts is to set the indir table - it doesn't seem worthwhile to care about behavior of the default table too much. Don't test that. Reviewed-by: Willem de Bruijn Link: https://patch.msgid.link/20240708213627.226025-4-kuba@kernel.org Signed-off-by: Jakub Kicinski