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selftests: mlxsw: resource_scale: Update scale target after test setup

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The scale of each resource is tested in the following manner:

1. The scale target is queried.
2. The test setup is prepared.
3. The test is invoked.

In some cases, the occupancy of a resource changes as part of the second
step, requiring the test to return a scale target that takes this change
into account.

Make this more robust by re-querying the scale target after the second
step.

Another possible solution is to swap the first and second steps, but
when a test needs to be skipped (i.e., scale target is zero), the setup
would have been in vain.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Schimmel 2022-06-16 13:42:39 +03:00 committed by David S. Miller
parent e386a527fc
commit d3ffeb2dba
2 changed files with 6 additions and 0 deletions
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3
tools/testing/selftests/drivers/net/mlxsw/spectrum-2/resource_scale.sh
View File

@ -38,6 +38,9 @@ for current_test in ${TESTS:-$ALL_TESTS}; do
target=$(${current_test}_get_target "$should_fail")
${current_test}_setup_prepare
setup_wait $num_netifs
# Update target in case occupancy of a certain resource changed
# following the test setup.
target=$(${current_test}_get_target "$should_fail")
${current_test}_test "$target" "$should_fail"
${current_test}_cleanup
devlink_reload

3
tools/testing/selftests/drivers/net/mlxsw/spectrum/resource_scale.sh
View File

@ -43,6 +43,9 @@ for current_test in ${TESTS:-$ALL_TESTS}; do
target=$(${current_test}_get_target "$should_fail")
${current_test}_setup_prepare
setup_wait $num_netifs
# Update target in case occupancy of a certain resource
# changed following the test setup.
target=$(${current_test}_get_target "$should_fail")
${current_test}_test "$target" "$should_fail"
${current_test}_cleanup
if [[ "$should_fail" -eq 0 ]]; then