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selftests: spectrum-2: tc_flower_scale: Dynamically set scale target
Instead of hard coding the scale target in the test, dynamically set it based on the maximum number of flow counters and their current occupancy. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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1 changed files with 10 additions and 5 deletions
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@ -4,17 +4,22 @@ source ../tc_flower_scale.sh
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tc_flower_get_target()
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{
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local should_fail=$1; shift
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local max_cnts
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# The driver associates a counter with each tc filter, which means the
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# number of supported filters is bounded by the number of available
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# counters.
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# Currently, the driver supports 30K (30,720) flow counters and six of
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# these are used for multicast routing.
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local target=30714
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max_cnts=$(devlink_resource_size_get counters flow)
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# Remove already allocated counters.
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((max_cnts -= $(devlink_resource_occ_get counters flow)))
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# Each rule uses two counters, for packets and bytes.
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((max_cnts /= 2))
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if ((! should_fail)); then
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echo $target
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echo $max_cnts
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else
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echo $((target + 1))
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echo $((max_cnts + 1))
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fi
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}
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