linux.git/tools/testing/selftests/drivers/net/Makefile, branch v6.16

selftests: net: move wait_local_port_listen to lib.sh

2025-05-28T00:31:42+00:00

The function wait_local_port_listen() is the only function defined in
net_helper.sh. Since some tests source both lib.sh and net_helper.sh,
we can simplify the setup by moving wait_local_port_listen() to lib.sh.

With this change, net_helper.sh becomes redundant and can be removed.

Signed-off-by: Hangbin Liu 
Reviewed-by: Matthieu Baerts (NGI0) 
Link: https://patch.msgid.link/20250526014600.9128-1-liuhangbin@gmail.com
Signed-off-by: Jakub Kicinski

selftests: net: move xdp_helper to net/lib

2025-04-28T22:49:10+00:00

Move xdp_helper to net/lib to make it easier for other selftests to use
the helper.

Signed-off-by: Bui Quang Minh 
Acked-by: Michael S. Tsirkin 
Link: https://patch.msgid.link/20250425071018.36078-2-minhquangbui99@gmail.com
Signed-off-by: Jakub Kicinski

selftests: drv-net: Test that NAPI ID is non-zero

2025-04-25T01:30:36+00:00

Test that the SO_INCOMING_NAPI_ID of a network file descriptor is
non-zero. This ensures that either the core networking stack or, in some
cases like netdevsim, the driver correctly sets the NAPI ID.

Signed-off-by: Joe Damato 
Link: https://patch.msgid.link/20250424002746.16891-4-jdamato@fastly.com
Signed-off-by: Jakub Kicinski

selftests: drv-net: Test queue xsk attribute

2025-02-18T00:46:03+00:00

Test that queues which are used for AF_XDP have the xsk nest attribute.
The attribute is currently empty, but its existence means the AF_XDP is
being used for the queue. Enable CONFIG_XDP_SOCKETS for
selftests/drivers/net tests, as well.

Signed-off-by: Joe Damato 
Suggested-by: Jakub Kicinski 
Link: https://patch.msgid.link/20250214211255.14194-4-jdamato@fastly.com
Signed-off-by: Jakub Kicinski

netconsole: selftest: test for sysdata CPU

2025-02-10T15:04:18+00:00

Add a new selftest to verify that the netconsole module correctly
handles CPU runtime data in sysdata. The test validates three scenarios:

1. Basic CPU sysdata functionality - verifies that cpu=X is appended to
   messages
2. CPU sysdata with userdata - ensures CPU data works alongside userdata
3. Disabled CPU sysdata - confirms no CPU data is included when disabled

The test uses taskset to control which CPU sends messages and verifies
the reported CPU matches the one used. This helps ensure that netconsole
accurately tracks and reports the originating CPU of messages.

Signed-off-by: Breno Leitao 
Reviewed-by: Simon Horman 
Signed-off-by: David S. Miller

netconsole: selftest: Add test for fragmented messages

2025-02-05T02:09:21+00:00

Add a new selftest to verify netconsole's handling of messages that
exceed the packet size limit and require fragmentation. The test sends
messages with varying sizes and userdata, validating that:

1. Large messages are correctly fragmented and reassembled
2. Userdata fields are properly preserved across fragments
3. Messages work correctly with and without kernel release version
   appending

The test creates a networking environment using netdevsim, sends
messages through /dev/kmsg, and verifies the received fragments maintain
message integrity.

Signed-off-by: Breno Leitao 
Reviewed-by: Simon Horman 
Link: https://patch.msgid.link/20250203-netcons_frag_msgs-v1-1-5bc6bedf2ac0@debian.org
Signed-off-by: Jakub Kicinski

selftest: net-drv: hds: add test for HDS feature

2025-01-15T22:42:12+00:00

HDS/HDS-thresh features were updated/implemented. so add some tests for
these features.

HDS tests are the same with `ethtool -G eth0 tcp-data-split ` but `auto` depends on driver specification.
So, it doesn't include `auto` case.

HDS-thresh tests are same with `ethtool -G eth0 hds-thresh <0 - MAX>`
It includes both 0 and MAX cases. It also includes exceed case, MAX + 1.

Signed-off-by: Taehee Yoo 
Link: https://patch.msgid.link/20250114142852.3364986-11-ap420073@gmail.com
Signed-off-by: Jakub Kicinski

netconsole: selftest: verify userdata entry limit

2025-01-10T02:06:36+00:00

Add a new selftest for netconsole that tests the userdata entry limit
functionality. The test performs two key verifications:

1. Create MAX_USERDATA_ITEMS (16) userdata entries successfully
2. Confirm that attempting to create an additional userdata entry fails

The selftest script uses the netcons library and checks the behavior
by attempting to create entries beyond the maximum allowed limit.

Signed-off-by: Breno Leitao 
Tested-by: Simon Horman 
Reviewed-by: Simon Horman 
Link: https://patch.msgid.link/20250108-netcons_overflow_test-v3-4-3d85eb091bec@debian.org
Signed-off-by: Jakub Kicinski

netconsole: selftest: Split the helpers from the selftest

2025-01-10T02:06:36+00:00

Split helper functions from the netconsole basic test into a separate
library file to enable reuse across different netconsole tests. This
change only moves the existing helper functions to lib/sh/lib_netcons.sh
while preserving the same test functionality.

The helpers provide common functions for:
- Setting up network namespaces and interfaces
- Managing netconsole dynamic targets
- Setting user data
- Handling test dependencies
- Cleanup operations

Do not make any change in the code, other than the mechanical
separation.

Signed-off-by: Breno Leitao 
Tested-by: Simon Horman 
Reviewed-by: Simon Horman 
Link: https://patch.msgid.link/20250108-netcons_overflow_test-v3-2-3d85eb091bec@debian.org
Signed-off-by: Jakub Kicinski

selftests: drv-net: add missing trailing backslash

2024-10-11T22:53:40+00:00

Commit b3ea416419c8 ("testing: net-drv: add basic shaper test")
removed the trailing backslash from the last entry. We have
a terminating comment here to avoid having to modify the last
line when adding at the end.

Reviewed-by: Joe Damato 
Reviewed-by: Donald Hunter 
Link: https://patch.msgid.link/20241010211857.2193076-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski