kernel/linux.git/tools/testing/selftests/drivers, branch v5.13.1

selftests: mlxsw: Fix mausezahn invocation in ERSPAN scale test

2021-04-23T21:01:28+00:00

The mirror_gre_scale test creates as many ERSPAN sessions as the underlying chip supports, and tests that they all work. In order to determine that it issues a stream of ICMP packets and checks if they are mirrored as expected. However, the mausezahn invocation missed the -6 flag to identify the use of IPv6 protocol, and was sending ICMP messages over IPv6, as opposed to ICMP6. It also didn't pass an explicit source IP address, which apparently worked at some point in the past, but does not anymore. To fix these issues, extend the function mirror_test() in mirror_lib by detecting the IPv6 protocol addresses, and using a different ICMP scheme. Fix __mirror_gre_test() in the selftest itself to pass a source IP address. Signed-off-by: Petr Machata Signed-off-by: David S. Miller

selftests: mlxsw: Increase the tolerance of backlog buildup

2021-04-23T21:01:28+00:00

The intention behind this test is to make sure that qdisc limit is correctly projected to the HW. However, first, due to rounding in the qdisc, and then in the driver, the number cannot actually be accurate. And second, the approach to testing this is to oversubscribe the port with traffic generated on the same switch. The actual backlog size therefore fluctuates. In practice, this test proved to be noisier than the rest, and spuriously fails every now and then. Increase the tolerance to 10 % to avoid these issues. Signed-off-by: Petr Machata Acked-by: Jiri Pirko Signed-off-by: David S. Miller

selftests: mlxsw: Return correct error code in resource scale tests

2021-04-23T21:01:28+00:00

Currently, the resource scale test checks a few cases, when the error code resets between the cases. So for example, if one case fails and the consecutive case passes, the error code eventually will fit the last test and will be 0. Save a new return code that will hold the 'or' return codes of all the cases, so the final return code will consider all the cases. Signed-off-by: Danielle Ratson Reviewed-by: Petr Machata Signed-off-by: Petr Machata Signed-off-by: David S. Miller

selftests: mlxsw: Remove a redundant if statement in tc_flower_scale test

2021-04-23T21:01:28+00:00

Currently, the error return code of the failure condition is lost after using an if statement, so the test doesn't fail when it should. Remove the if statement that separates the condition and the error code check, so the test won't always pass. Fixes: abfce9e062021 ("selftests: mlxsw: Reduce running time using offload indication") Reported-by: Ido Schimmel Signed-off-by: Danielle Ratson Reviewed-by: Petr Machata Signed-off-by: Petr Machata Signed-off-by: David S. Miller

selftests: mlxsw: Remove a redundant if statement in port_scale test

2021-04-23T21:01:28+00:00

Currently, the error return code of the failure condition is lost after using an if statement, so the test doesn't fail when it should. Remove the if statement that separates the condition and the error code check, so the test won't always pass. Fixes: 5154b1b826d9b ("selftests: mlxsw: Add a scale test for physical ports") Reported-by: Ido Schimmel Signed-off-by: Danielle Ratson Reviewed-by: Petr Machata Signed-off-by: Petr Machata Signed-off-by: David S. Miller

selftests: mlxsw: sch_red_ets: Test proper counter cleaning in ETS

2021-04-20T23:43:13+00:00

There was a bug introduced during the rework which cause non-zero backlog being stuck at ETS. Introduce a selftest that would have caught the issue earlier. Signed-off-by: Petr Machata Reviewed-by: Ido Schimmel Signed-off-by: David S. Miller

selftests: ethtool: add a netdevsim FEC test

2021-03-31T21:15:23+00:00

Test FEC settings, iterate over configs. Signed-off-by: Jakub Kicinski Signed-off-by: David S. Miller

selftests: mlxsw: Test vetoing of double sampling

2021-03-29T20:37:26+00:00

Test that two sampling rules cannot be configured on the same port with the same trigger. Signed-off-by: Ido Schimmel Reviewed-by: Jiri Pirko Signed-off-by: David S. Miller

selftests: mlxsw: Test matchall failure with protocol match

2021-03-29T20:37:25+00:00

The driver can only offload matchall rules that do not match on a protocol. Test that matchall rules that match on a protocol are vetoed. Signed-off-by: Ido Schimmel Reviewed-by: Jiri Pirko Signed-off-by: David S. Miller

selftests: mlxsw: Add resilient nexthop groups configuration tests

2021-03-24T23:34:58+00:00

Test that unsupported resilient nexthop group configurations are rejected and that offload / trap indication is correctly set on nexthop buckets in a resilient group. Signed-off-by: Ido Schimmel Reviewed-by: Petr Machata Signed-off-by: David S. Miller