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selftests: net: Adapt ethtool mq tests to fix in qdisc graft

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Because of patch[1] the graft behaviour changed

So the command:

tcq replace parent 100:1 handle 204:

Is no longer valid and will not delete 100:4 added by command:

tcq replace parent 100:4 handle 204: pfifo_fast

So to maintain the original behaviour, this patch manually deletes 100:4
and grafts 100:1

Note: This change will also work fine without [1]

[1] https://lore.kernel.org/netdev/20250111151455.75480-1-jhs@mojatatu.com/T/#u

Signed-off-by: Victor Nogueira <victor@mojatatu.com>
Reviewed-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Victor Nogueira
2025-01-11 18:15:15 -03:00
committed by David S. Miller
parent 001ba09020
commit 0a5b8fff01
1 changed files with 6 additions and 3 deletions
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9
tools/testing/selftests/drivers/net/netdevsim/tc-mq-visibility.sh
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@@ -58,9 +58,12 @@ for root in mq mqprio; do
ethtool -L $NDEV combined 4
n_child_assert 4 "One real queue, rest default"
# Graft some
tcq replace parent 100:1 handle 204:
n_child_assert 3 "Grafted"
# Remove real one
tcq del parent 100:4 handle 204:
# Replace default with pfifo
tcq replace parent 100:1 handle 205: pfifo limit 1000
n_child_assert 3 "Deleting real one, replacing default one with pfifo"
ethtool -L $NDEV combined 1
n_child_assert 1 "Grafted, one"