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Exercise cleanup of nested nodes after deleting their last queue leaf. The
test builds a two-level node hierarchy and checks that removing the queue
also removes both now-empty node shapers.
Signed-off-by: Mohsin Bashir <hmohsin@meta.com>
Link: https://patch.msgid.link/20260805030936.1092907-15-mohsin.bashr@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add coverage for grouping leaves that currently belong to different parent
nodes. The test verifies that an implicit parent is rejected, an explicit
parent succeeds, and the old empty parent nodes are cleaned up.
Signed-off-by: Mohsin Bashir <hmohsin@meta.com>
Link: https://patch.msgid.link/20260805030936.1092907-14-mohsin.bashr@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Verify that invalid set requests fail without corrupting existing queue
shaper state. The test covers invalid node creation through set and invalid
queue identifiers, then confirms the original queue configuration remains
unchanged.
Signed-off-by: Mohsin Bashir <hmohsin@meta.com>
Link: https://patch.msgid.link/20260805030936.1092907-13-mohsin.bashr@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Exercise queue-scope scalar shaper attributes reported by the device,
including rate limits, burst, priority and weight. Build the set request
from advertised capabilities so devices are tested for the attributes they
claim rather than skipped for missing unrelated fields.
Signed-off-by: Mohsin Bashir <hmohsin@meta.com>
Link: https://patch.msgid.link/20260805030936.1092907-12-mohsin.bashr@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add reject_reparenting to verify that the group operation rejects attempts
to change an existing node's parent. The test creates two node shapers
under netdev and verifies that re-grouping the first node under the second
fails with EOPNOTSUPP. It also verifies that updating the node with the
same parent succeeds, and that updating the node without specifying a
parent keeps the queue leaves under the original node while updating their
weights.
Signed-off-by: Mohsin Bashir <hmohsin@meta.com>
Link: https://patch.msgid.link/20260805030936.1092907-11-mohsin.bashr@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add move_queue_between_nodes to verify that a queue can be moved
from one node to another via re-grouping. Creates N1 with Q1,Q2
and N2 with Q3, then re-groups N2 with Q1,Q3 to steal Q1 from
N1. Verifies Q1 moved to N2 and Q2 remains under N1.
Signed-off-by: Mohsin Bashir <hmohsin@meta.com>
Link: https://patch.msgid.link/20260805030936.1092907-10-mohsin.bashr@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add delete_child_reparent to verify that deleting a child node
reparents its queue leaves to the parent node. Creates a two-level
hierarchy (N1 with Q1,Q2 and child N2 with Q3), deletes N2, and
verifies Q3's parent becomes N1.
Signed-off-by: Mohsin Bashir <hmohsin@meta.com>
Link: https://patch.msgid.link/20260805030936.1092907-9-mohsin.bashr@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add nested_depth_limit to incrementally create deeper nesting
levels until the driver rejects. Reports the maximum supported
nesting depth on both pass and fail. A device advertising nesting
support must support at least depth 2, otherwise nesting is
meaningless.
Signed-off-by: Mohsin Bashir <hmohsin@meta.com>
Link: https://patch.msgid.link/20260805030936.1092907-8-mohsin.bashr@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add group_update_rate to test updating an existing node's rate
via the .group callback. Creates a node with bw_max=10000,
re-groups with bw_max=50000, and verifies the rate changed while
leaves remain under the same node.
Signed-off-by: Mohsin Bashir <hmohsin@meta.com>
Link: https://patch.msgid.link/20260805030936.1092907-7-mohsin.bashr@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add set_node_shaper to test updating a NODE scope shaper's rate
via the .set callback. Creates a node group with bw_max=10000,
updates to 20000 via .set, and verifies the change.
Signed-off-by: Mohsin Bashir <hmohsin@meta.com>
Link: https://patch.msgid.link/20260805030936.1092907-6-mohsin.bashr@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add a test that groups queues under the netdev parent with rate
limiting enabled. Extract the common group-under-netdev flow into
_group_under_netdev helper to share with basic_groups.
The test independently checks for netdev scope bw_max and metric
capabilities before proceeding, and verifies that the netdev
shaper persists after leaf deletion.
Signed-off-by: Mohsin Bashir <hmohsin@meta.com>
Link: https://patch.msgid.link/20260805030936.1092907-5-mohsin.bashr@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Decouple basic_groups from the set_nshapers test dependency. The
test was gated on cfg.netdev which is set by set_nshapers. Replace
with direct capability checks: netdev scope support (required for
grouping under netdev handle) and queue scope nesting + weight.
Remove bw-max and metric from the .group call so the test validates
pure queue grouping without rate limiting. The rate-limited variant is
restored in the following patch, which adds a dedicated
basic_groups_with_rate test.
Signed-off-by: Mohsin Bashir <hmohsin@meta.com>
Link: https://patch.msgid.link/20260805030936.1092907-4-mohsin.bashr@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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dup_leaves expects the kernel to reject a group request that lists the same
queue twice. When that rejection does not happen, ksft_raises only records
a failed check and leaves cm.exception as None, so the following errno
check raises AttributeError. Worse, the accepted group request leaves a
node shaper and queue 0 behind, which makes later tests fail for an
unrelated reason. Handle the negative test explicitly instead. If group
fails, verify that the errno is EINVAL and return. If group succeeds,
delete the node returned by the operation and queue 0 before reporting the
failure.
Give the duplicate leaves different weights so the request still contains
two distinct leaf entries while exercising duplicate handle validation.
This also introduces _delete_shaper(), cached _cap_get(), and
_require_caps() helpers as preparation for the following shaper group
tests. The follow-on tests need the same capability checks for node and
queue scope support. Keeping that logic in one place avoids repeating raw
EOPNOTSUPP handling in each test.
Signed-off-by: Mohsin Bashir <hmohsin@meta.com>
Link: https://patch.msgid.link/20260805030936.1092907-3-mohsin.bashr@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Commit 57bb59ab6fa3 ("selftests: net: bump default cmd() timeout to 20
seconds") raised the default cmd() timeout to 20 seconds, so the explicit
timeout=10 passed to the ethtool channel commands in queue_update() is
now redundant and, in fact, shorter than the default. Drop it and rely
on the default timeout.
Signed-off-by: Mohsin Bashir <hmohsin@meta.com>
Link: https://patch.msgid.link/20260805030936.1092907-2-mohsin.bashr@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add test exercising duplicate leaves.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20260510192904.3987113-5-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Leverage a basic/dummy netdevsim implementation to do functional
coverage for NL interface.
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Link: https://patch.msgid.link/43092afbf38365c796088bf8fc155e523ab434ae.1728460186.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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