diff mbox series

[net-next,2/8] testing: selftests: tc_common: Add tc_check_at_least_x_packets()

Message ID 20211008131241.85038-3-idosch@idosch.org (mailing list archive)
State Accepted
Commit c08d227290f618ada4028f0303743263cc026dd9
Delegated to: Netdev Maintainers
Headers show
Series selftests: forwarding: Add ip6gre tests | expand

Checks

Context Check Description
netdev/apply success Patch already applied to net-next
netdev/tree_selection success Clearly marked for net-next

Commit Message

Ido Schimmel Oct. 8, 2021, 1:12 p.m. UTC 
From: Amit Cohen <amcohen@nvidia.com>

Add function that checks that at least X packets hit the tc rule.
There are cases that it is not possible to catch only the interesting
packets, so then, it is possible to send many packets and verify that at
least this amount of packets hit the rule.

This function will be used in the next patch for general tc rule that
can be used to test both software and hardware.

Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
---
 tools/testing/selftests/net/forwarding/tc_common.sh | 10 ++++++++++
 1 file changed, 10 insertions(+)
diff mbox series

Patch

diff --git a/tools/testing/selftests/net/forwarding/tc_common.sh b/tools/testing/selftests/net/forwarding/tc_common.sh
index 0e18e8be6e2a..bce8bb8d2b6f 100644
--- a/tools/testing/selftests/net/forwarding/tc_common.sh
+++ b/tools/testing/selftests/net/forwarding/tc_common.sh
@@ -16,6 +16,16 @@  tc_check_packets()
 		 tc_rule_handle_stats_get "$id" "$handle" > /dev/null
 }
 
+tc_check_at_least_x_packets()
+{
+	local id=$1
+	local handle=$2
+	local count=$3
+
+	busywait "$TC_HIT_TIMEOUT" until_counter_is ">= $count" \
+		 tc_rule_handle_stats_get "$id" "$handle" > /dev/null
+}
+
 tc_check_packets_hitting()
 {
 	local id=$1