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-rw-r--r--tools/testing/selftests/net/forwarding/router_mpath_nh_lib.sh129
1 files changed, 129 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/forwarding/router_mpath_nh_lib.sh b/tools/testing/selftests/net/forwarding/router_mpath_nh_lib.sh
new file mode 100644
index 0000000000000..7e7d62161c345
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/router_mpath_nh_lib.sh
@@ -0,0 +1,129 @@
+# SPDX-License-Identifier: GPL-2.0
+
+nh_stats_do_test()
+{
+ local what=$1; shift
+ local nh1_id=$1; shift
+ local nh2_id=$1; shift
+ local group_id=$1; shift
+ local stats_get=$1; shift
+ local mz="$@"
+
+ local dp
+
+ RET=0
+
+ sleep 2
+ for ((dp=0; dp < 60000; dp += 10000)); do
+ local dd
+ local t0_rp12=$(link_stats_tx_packets_get $rp12)
+ local t0_rp13=$(link_stats_tx_packets_get $rp13)
+ local t0_nh1=$($stats_get $group_id $nh1_id)
+ local t0_nh2=$($stats_get $group_id $nh2_id)
+
+ ip vrf exec vrf-h1 \
+ $mz -q -p 64 -d 0 -t udp \
+ "sp=1024,dp=$((dp))-$((dp + 10000))"
+ sleep 2
+
+ local t1_rp12=$(link_stats_tx_packets_get $rp12)
+ local t1_rp13=$(link_stats_tx_packets_get $rp13)
+ local t1_nh1=$($stats_get $group_id $nh1_id)
+ local t1_nh2=$($stats_get $group_id $nh2_id)
+
+ local d_rp12=$((t1_rp12 - t0_rp12))
+ local d_rp13=$((t1_rp13 - t0_rp13))
+ local d_nh1=$((t1_nh1 - t0_nh1))
+ local d_nh2=$((t1_nh2 - t0_nh2))
+
+ dd=$(absval $((d_rp12 - d_nh1)))
+ ((dd < 10))
+ check_err $? "Discrepancy between link and $stats_get: d_rp12=$d_rp12 d_nh1=$d_nh1"
+
+ dd=$(absval $((d_rp13 - d_nh2)))
+ ((dd < 10))
+ check_err $? "Discrepancy between link and $stats_get: d_rp13=$d_rp13 d_nh2=$d_nh2"
+ done
+
+ log_test "NH stats test $what"
+}
+
+nh_stats_test_dispatch_swhw()
+{
+ local what=$1; shift
+ local nh1_id=$1; shift
+ local nh2_id=$1; shift
+ local group_id=$1; shift
+ local mz="$@"
+
+ local used
+
+ nh_stats_do_test "$what" "$nh1_id" "$nh2_id" "$group_id" \
+ nh_stats_get "${mz[@]}"
+
+ used=$(ip -s -j -d nexthop show id $group_id |
+ jq '.[].hw_stats.used')
+ kind=$(ip -j -d link show dev $rp11 |
+ jq -r '.[].linkinfo.info_kind')
+ if [[ $used == true ]]; then
+ nh_stats_do_test "HW $what" "$nh1_id" "$nh2_id" "$group_id" \
+ nh_stats_get_hw "${mz[@]}"
+ elif [[ $kind == veth ]]; then
+ log_test_skip "HW stats not offloaded on veth topology"
+ fi
+}
+
+nh_stats_test_dispatch()
+{
+ local nhgtype=$1; shift
+ local what=$1; shift
+ local nh1_id=$1; shift
+ local nh2_id=$1; shift
+ local group_id=$1; shift
+ local mz="$@"
+
+ local enabled
+ local kind
+
+ if ! ip nexthop help 2>&1 | grep -q hw_stats; then
+ log_test_skip "NH stats test: ip doesn't support HW stats"
+ return
+ fi
+
+ ip nexthop replace id $group_id group $nh1_id/$nh2_id \
+ hw_stats on type $nhgtype
+ enabled=$(ip -s -j -d nexthop show id $group_id |
+ jq '.[].hw_stats.enabled')
+ if [[ $enabled == true ]]; then
+ nh_stats_test_dispatch_swhw "$what" "$nh1_id" "$nh2_id" \
+ "$group_id" "${mz[@]}"
+ elif [[ $enabled == false ]]; then
+ check_err 1 "HW stats still disabled after enabling"
+ log_test "NH stats test"
+ else
+ log_test_skip "NH stats test: ip doesn't report hw_stats info"
+ fi
+
+ ip nexthop replace id $group_id group $nh1_id/$nh2_id \
+ hw_stats off type $nhgtype
+}
+
+__nh_stats_test_v4()
+{
+ local nhgtype=$1; shift
+
+ sysctl_set net.ipv4.fib_multipath_hash_policy 1
+ nh_stats_test_dispatch $nhgtype "IPv4" 101 102 103 \
+ $MZ $h1 -A 192.0.2.2 -B 198.51.100.2
+ sysctl_restore net.ipv4.fib_multipath_hash_policy
+}
+
+__nh_stats_test_v6()
+{
+ local nhgtype=$1; shift
+
+ sysctl_set net.ipv6.fib_multipath_hash_policy 1
+ nh_stats_test_dispatch $nhgtype "IPv6" 104 105 106 \
+ $MZ -6 $h1 -A 2001:db8:1::2 -B 2001:db8:2::2
+ sysctl_restore net.ipv6.fib_multipath_hash_policy
+}