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selftests: spectrum-2: tc_flower_scale: Dynamically set scale target

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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>
This commit is contained in:
Ido Schimmel 2022-06-16 13:42:45 +03:00 committed by David S. Miller
parent be00853bfd
commit ed62af4546
1 changed files with 10 additions and 5 deletions
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15
tools/testing/selftests/drivers/net/mlxsw/spectrum-2/tc_flower_scale.sh
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@ -4,17 +4,22 @@ source ../tc_flower_scale.sh
tc_flower_get_target()
{
local should_fail=$1; shift
local max_cnts
# The driver associates a counter with each tc filter, which means the
# number of supported filters is bounded by the number of available
# counters.
# Currently, the driver supports 30K (30,720) flow counters and six of
# these are used for multicast routing.
local target=30714
max_cnts=$(devlink_resource_size_get counters flow)
# Remove already allocated counters.
((max_cnts -= $(devlink_resource_occ_get counters flow)))
# Each rule uses two counters, for packets and bytes.
((max_cnts /= 2))
if ((! should_fail)); then
echo $target
echo $max_cnts
else
echo $((target + 1))
echo $((max_cnts + 1))
fi
}