From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 20:49:45 +0200
Subject: Adding upstream version 6.1.76.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../testing/selftests/drivers/net/mlxsw/sch_ets.sh | 82 ++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100755 tools/testing/selftests/drivers/net/mlxsw/sch_ets.sh

(limited to 'tools/testing/selftests/drivers/net/mlxsw/sch_ets.sh')

diff --git a/tools/testing/selftests/drivers/net/mlxsw/sch_ets.sh b/tools/testing/selftests/drivers/net/mlxsw/sch_ets.sh
new file mode 100755
index 000000000..ceaa76b17
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/sch_ets.sh
@@ -0,0 +1,82 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# A driver for the ETS selftest that implements testing in offloaded datapath.
+lib_dir=$(dirname $0)/../../../net/forwarding
+source $lib_dir/sch_ets_core.sh
+source $lib_dir/devlink_lib.sh
+source qos_lib.sh
+
+ALL_TESTS="
+	ping_ipv4
+	priomap_mode
+	ets_test_strict
+	ets_test_mixed
+	ets_test_dwrr
+"
+
+PARENT="parent 3:3"
+
+switch_create()
+{
+	# Create a bottleneck so that the DWRR process can kick in.
+	tc qdisc replace dev $swp2 root handle 3: tbf rate 1gbit \
+		burst 128K limit 1G
+
+	ets_switch_create
+
+	# Set the ingress quota high and use the three egress TCs to limit the
+	# amount of traffic that is admitted to the shared buffers. This makes
+	# sure that there is always enough traffic of all types to select from
+	# for the DWRR process.
+	devlink_port_pool_th_save $swp1 0
+	devlink_port_pool_th_set $swp1 0 12
+	devlink_tc_bind_pool_th_save $swp1 0 ingress
+	devlink_tc_bind_pool_th_set $swp1 0 ingress 0 12
+	devlink_port_pool_th_save $swp2 4
+	devlink_port_pool_th_set $swp2 4 12
+	devlink_tc_bind_pool_th_save $swp2 7 egress
+	devlink_tc_bind_pool_th_set $swp2 7 egress 4 5
+	devlink_tc_bind_pool_th_save $swp2 6 egress
+	devlink_tc_bind_pool_th_set $swp2 6 egress 4 5
+	devlink_tc_bind_pool_th_save $swp2 5 egress
+	devlink_tc_bind_pool_th_set $swp2 5 egress 4 5
+
+	# Note: sch_ets_core.sh uses VLAN ingress-qos-map to assign packet
+	# priorities at $swp1 based on their 802.1p headers. ingress-qos-map is
+	# not offloaded by mlxsw as of this writing, but the mapping used is
+	# 1:1, which is the mapping currently hard-coded by the driver.
+}
+
+switch_destroy()
+{
+	devlink_tc_bind_pool_th_restore $swp2 5 egress
+	devlink_tc_bind_pool_th_restore $swp2 6 egress
+	devlink_tc_bind_pool_th_restore $swp2 7 egress
+	devlink_port_pool_th_restore $swp2 4
+	devlink_tc_bind_pool_th_restore $swp1 0 ingress
+	devlink_port_pool_th_restore $swp1 0
+
+	ets_switch_destroy
+
+	tc qdisc del dev $swp2 root handle 3:
+}
+
+# Callback from sch_ets_tests.sh
+collect_stats()
+{
+	local -a streams=("$@")
+	local stream
+
+	# 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
+ets_run
-- 
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