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authorPetr Machata <petrm@mellanox.com>2020-03-05 09:16:44 +0200
committerDavid S. Miller <davem@davemloft.net>2020-03-05 14:03:32 -0800
commitb9b72999eb86e650489a4321c8e95a4e2e3df20c (patch)
treec0f9107bbf2661d7a317bce4e6a6c9d53aa11664 /tools/testing/selftests/drivers
parent7bec1a45d5708a19154b94758802d7c599b99119 (diff)
selftests: forwarding: ETS: Use Qdisc counters
Currently the SW-datapath ETS selftests use "ip link" stats to obtain the number of packets that went through a given band. mlxsw then uses ethtool per-priority counters. Instead, change both to use qdiscs. In SW datapath this is the obvious choice, and now that mlxsw offloads FIFO, this should work on the offloaded datapath as well. This has the effect of verifying that the FIFO offload works. Signed-off-by: Petr Machata <petrm@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/testing/selftests/drivers')
-rwxr-xr-xtools/testing/selftests/drivers/net/mlxsw/sch_ets.sh14
1 files changed, 11 insertions, 3 deletions
diff --git a/tools/testing/selftests/drivers/net/mlxsw/sch_ets.sh b/tools/testing/selftests/drivers/net/mlxsw/sch_ets.sh
index c9fc4d4885c1..94c37124a840 100755
--- a/tools/testing/selftests/drivers/net/mlxsw/sch_ets.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/sch_ets.sh
@@ -56,11 +56,19 @@ switch_destroy()
}
# Callback from sch_ets_tests.sh
-get_stats()
+collect_stats()
{
- local band=$1; shift
+ local -a streams=("$@")
+ local stream
- ethtool_stats_get "$h2" rx_octets_prio_$band
+ # Wait for qdisc counter update so that we don't get it mid-way through.
+ busywait_for_counter 1000 +1 \
+ qdisc_parent_stats_get $swp2 10:$((${streams[0]} + 1)) .bytes \
+ > /dev/null
+
+ for stream in ${streams[@]}; do
+ qdisc_parent_stats_get $swp2 10:$((stream + 1)) .bytes
+ done
}
bail_on_lldpad