FM / mlxsw

/usr/src/linux-headers-5.15.0-190/tools/testing/selftests/drivers/net/mlxsw/

/usr/src/linux-headers-5.15.0-190/tools/testing/selftests/drivers/net/mlxsw

Name	Size	Mode	Actions
spectrum/	-	0755	rm
spectrum-2/	-	0755	rm
blackhole_routes.sh	5075	0755	edit dl rm
devlink_trap.sh	1928	0755	edit dl rm
devlink_trap_acl_drops.sh	2458	0755	edit dl rm
devlink_trap_control.sh	18399	0755	edit dl rm
devlink_trap_l2_drops.sh	9966	0755	edit dl rm
devlink_trap_l3_drops.sh	16812	0755	edit dl rm
devlink_trap_l3_exceptions.sh	14098	0755	edit dl rm
devlink_trap_policer.sh	9441	0755	edit dl rm
devlink_trap_tunnel_ipip.sh	6035	0755	edit dl rm
devlink_trap_tunnel_vxlan.sh	8989	0755	edit dl rm
ethtool_lanes.sh	4026	0755	edit dl rm
extack.sh	3471	0755	edit dl rm
fib.sh	5562	0755	edit dl rm
fib_offload.sh	10164	0755	edit dl rm
mirror_gre.sh	4447	0755	edit dl rm
mirror_gre_scale.sh	5782	0644	edit dl rm
mlxsw_lib.sh	362	0644	edit dl rm
one_armed_router.sh	6950	0755	edit dl rm
port_scale.sh	1391	0644	edit dl rm
qos_defprio.sh	2738	0755	edit dl rm
qos_dscp_bridge.sh	4325	0755	edit dl rm
qos_dscp_router.sh	6764	0755	edit dl rm
qos_ets_strict.sh	8810	0755	edit dl rm
qos_headroom.sh	8367	0755	edit dl rm
qos_lib.sh	1918	0644	edit dl rm
qos_mc_aware.sh	9412	0755	edit dl rm
qos_pfc.sh	11700	0755	edit dl rm
q_in_q_veto.sh	7948	0755	edit dl rm
router_scale.sh	2138	0644	edit dl rm
rtnetlink.sh	30604	0755	edit dl rm
sch_ets.sh	2332	0755	edit dl rm
sch_red_core.sh	18014	0644	edit dl rm
sch_red_ets.sh	2476	0755	edit dl rm
sch_red_prio.sh	81	0755	edit dl rm
sch_red_root.sh	1081	0755	edit dl rm
sch_tbf_ets.sh	175	0755	edit dl rm
sch_tbf_prio.sh	176	0755	edit dl rm
sch_tbf_root.sh	176	0755	edit dl rm
sharedbuffer.sh	3912	0755	edit dl rm
tc_action_hw_stats.sh	2293	0755	edit dl rm
tc_flower_scale.sh	2460	0644	edit dl rm
tc_police_occ.sh	2120	0755	edit dl rm
tc_police_scale.sh	1660	0644	edit dl rm
tc_restrictions.sh	11847	0755	edit dl rm
tc_sample.sh	17891	0755	edit dl rm
vxlan.sh	29996	0755	edit dl rm
vxlan_fdb_veto.sh	2955	0755	edit dl rm
vxlan_flooding.sh	8849	0755	edit dl rm

Edit: /usr/src/linux-headers-5.15.0-190/tools/testing/selftests/drivers/net/mlxsw/qos_lib.sh (1918B)

# SPDX-License-Identifier: GPL-2.0

check_rate()
{
	local rate=$1; shift
	local min=$1; shift
	local what=$1; shift

if ((rate > min)); then
		return 0
	fi

echo "$what $(humanize $ir) < $(humanize $min)" > /dev/stderr
	return 1
}

measure_rate()
{
	local sw_in=$1; shift   # Where the traffic ingresses the switch
	local host_in=$1; shift # Where it ingresses another host
	local counter=$1; shift # Counter to use for measurement
	local what=$1; shift

local interval=10
	local i
	local ret=0

# Dips in performance might cause momentary ingress rate to drop below
	# 1Gbps. That wouldn't saturate egress and MC would thus get through,
	# seemingly winning bandwidth on account of UC. Demand at least 2Gbps
	# average ingress rate to somewhat mitigate this.
	local min_ingress=2147483648

for i in {5..0}; do
		local t0=$(ethtool_stats_get $host_in $counter)
		local u0=$(ethtool_stats_get $sw_in $counter)
		sleep $interval
		local t1=$(ethtool_stats_get $host_in $counter)
		local u1=$(ethtool_stats_get $sw_in $counter)

local ir=$(rate $u0 $u1 $interval)
		local er=$(rate $t0 $t1 $interval)

if check_rate $ir $min_ingress "$what ingress rate"; then
			break
		fi

# Fail the test if we can't get the throughput.
		if ((i == 0)); then
			ret=1
		fi
	done

echo $ir $er
	return $ret
}

bail_on_lldpad()
{
	if systemctl is-active --quiet lldpad; then

cat >/dev/stderr <<-EOF
		WARNING: lldpad is running

lldpad will likely configure DCB, and this test will
			configure Qdiscs. mlxsw does not support both at the
			same time, one of them is arbitrarily going to overwrite
			the other. That will cause spurious failures (or,
			unlikely, passes) of this test.
		EOF

if [[ -z $ALLOW_LLDPAD ]]; then
			cat >/dev/stderr <<-EOF

If you want to run the test anyway, please set
				an environment variable ALLOW_LLDPAD to a
				non-empty string.
			EOF
			exit 1
		else
			return
		fi
	fi
}

cmd: