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#!/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
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 "configure DCB" "configure Qdiscs"
ets_run
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