From: Ido Schimmel <ido...@mellanox.com>
Add helpers to interact with devlink-trap, such as setting the action of
a trap and retrieving statistics.
Signed-off-by: Ido Schimmel <ido...@mellanox.com>
---
.../selftests/net/forwarding/devlink_lib.sh | 125 ++++++++++++++++++
1 file changed, 125 insertions(+)
diff --git a/tools/testing/selftests/net/forwarding/devlink_lib.sh
b/tools/testing/selftests/net/forwarding/devlink_lib.sh
index 8553a67a2322..101a63f8fc5f 100644
--- a/tools/testing/selftests/net/forwarding/devlink_lib.sh
+++ b/tools/testing/selftests/net/forwarding/devlink_lib.sh
@@ -27,6 +27,12 @@ if [ $? -ne 0 ]; then
exit 1
fi
+devlink help 2>&1 | grep "trap" &> /dev/null
+if [ $? -ne 0 ]; then
+ echo "SKIP: iproute2 too old, missing devlink-trap"
+ exit $KSFT_SKIP
+fi
+
##############################################################################
# Devlink helpers
@@ -190,3 +196,122 @@ devlink_tc_bind_pool_th_restore()
devlink sb tc bind set $port tc $tc type $dir \
pool ${orig[0]} th ${orig[1]}
}
+
+devlink_trap_report_set()
+{
+ local trap_name=$1; shift
+ local report=$1; shift
+
+ # Pipe output to /dev/null to avoid expected warnings.
+ devlink trap set $DEVLINK_DEV trap $trap_name report $report \
+ &> /dev/null
+}
+
+devlink_trap_action_set()
+{
+ local trap_name=$1; shift
+ local action=$1; shift
+
+ # Pipe output to /dev/null to avoid expected warnings.
+ devlink trap set $DEVLINK_DEV trap $trap_name \
+ action $action &> /dev/null
+}
+
+devlink_trap_rx_packets_get()
+{
+ local trap_name=$1; shift
+
+ devlink -js trap show $DEVLINK_DEV trap $trap_name \
+ | jq '.[][][]["stats"]["rx"]["packets"]'
+}
+
+devlink_trap_rx_bytes_get()
+{
+ local trap_name=$1; shift
+
+ devlink -js trap show $DEVLINK_DEV trap $trap_name \
+ | jq '.[][][]["stats"]["rx"]["bytes"]'
+}
+
+devlink_trap_stats_idle_test()
+{
+ local trap_name=$1; shift
+ local t0_packets t0_bytes
+ local t1_packets t1_bytes
+
+ t0_packets=$(devlink_trap_rx_packets_get $trap_name)
+ t0_bytes=$(devlink_trap_rx_bytes_get $trap_name)
+
+ sleep 1
+
+ t1_packets=$(devlink_trap_rx_packets_get $trap_name)
+ t1_bytes=$(devlink_trap_rx_bytes_get $trap_name)
+
+ if [[ $t0_packets -eq $t1_packets && $t0_bytes -eq $t1_bytes ]]; then
+ return 0
+ else
+ return 1
+ fi
+}
+
+devlink_trap_group_rx_packets_get()
+{
+ local group_name=$1; shift
+
+ devlink -js trap group show $DEVLINK_DEV group $group_name \
+ | jq '.[][][]["stats"]["rx"]["packets"]'
+}
+
+devlink_trap_group_rx_bytes_get()
+{
+ local group_name=$1; shift
+
+ devlink -js trap group show $DEVLINK_DEV group $group_name \
+ | jq '.[][][]["stats"]["rx"]["bytes"]'
+}
+
+devlink_trap_group_stats_idle_test()
+{
+ local group_name=$1; shift
+ local t0_packets t0_bytes
+ local t1_packets t1_bytes
+
+ t0_packets=$(devlink_trap_group_rx_packets_get $group_name)
+ t0_bytes=$(devlink_trap_group_rx_bytes_get $group_name)
+
+ sleep 1
+
+ t1_packets=$(devlink_trap_group_rx_packets_get $group_name)
+ t1_bytes=$(devlink_trap_group_rx_bytes_get $group_name)
+
+ if [[ $t0_packets -eq $t1_packets && $t0_bytes -eq $t1_bytes ]]; then
+ return 0
+ else
+ return 1
+ fi
+}
+
+devlink_trap_mon_input_port_test()
+{
+ local trap_name=$1; shift
+ local input_port=$1; shift
+ local devlink_pid
+ local tmp_dir
+ local rc
+
+ tmp_dir="$(mktemp -d)"
+
+ devlink_trap_report_set $trap_name "true"
+ timeout 1 devlink -v mon trap-report &> ${tmp_dir}/reports.txt
+ devlink_trap_report_set $trap_name "false"
+
+ grep -e "$trap_name" ${tmp_dir}/reports.txt -A 2 \
+ | grep -q -e "$input_port"
+
+ # Return false if no reports were found.
+ rc=$?
+
+ rm -rf $tmp_dir
+
+ return $rc
+}
--
2.20.1
