CoCalc -- qos_defprio.sh

GitHub Repository: torvalds/linux
Path: blob/master/tools/testing/selftests/drivers/net/mlxsw/qos_defprio.sh
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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Test for port-default priority. Non-IP packets ingress $swp1 and are
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# prioritized according to the default priority specified at the port.
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# rx_octets_prio_* counters are used to verify the prioritization.
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#
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# +----------------------------------+
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# | H1                               |
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# |    + $h1                         |
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# |    | 192.0.2.1/28                |
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# +----|-----------------------------+
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#      |
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# +----|-----------------------------+
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# | SW |                             |
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# |    + $swp1                       |
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# |      192.0.2.2/28                |
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# |      dcb app default-prio <prio> |
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# +----------------------------------+
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ALL_TESTS="
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	ping_ipv4
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	test_defprio
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"
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lib_dir=$(dirname $0)/../../../net/forwarding
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NUM_NETIFS=2
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: ${HIT_TIMEOUT:=1000} # ms
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source $lib_dir/lib.sh
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h1_create()
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{
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	simple_if_init $h1 192.0.2.1/28
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}
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h1_destroy()
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{
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	simple_if_fini $h1 192.0.2.1/28
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}
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switch_create()
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{
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	ip link set dev $swp1 up
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	ip addr add dev $swp1 192.0.2.2/28
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}
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switch_destroy()
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{
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	dcb app flush dev $swp1 default-prio
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	ip addr del dev $swp1 192.0.2.2/28
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	ip link set dev $swp1 down
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}
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setup_prepare()
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{
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	h1=${NETIFS[p1]}
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	swp1=${NETIFS[p2]}
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	vrf_prepare
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	h1_create
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	switch_create
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}
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cleanup()
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{
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	pre_cleanup
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	switch_destroy
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	h1_destroy
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	vrf_cleanup
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}
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ping_ipv4()
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{
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	ping_test $h1 192.0.2.2
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}
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__test_defprio()
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{
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	local prio_install=$1; shift
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	local prio_observe=$1; shift
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	local key
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	local t1
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	local i
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	RET=0
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	dcb app add dev $swp1 default-prio $prio_install
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	local t0=$(ethtool_stats_get $swp1 rx_frames_prio_$prio_observe)
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	mausezahn -q $h1 -d 100m -c 10 -t arp reply
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	t1=$(busywait "$HIT_TIMEOUT" until_counter_is ">= $((t0 + 10))" \
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		ethtool_stats_get $swp1 rx_frames_prio_$prio_observe)
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	check_err $? "Default priority $prio_install/$prio_observe: Expected to capture 10 packets, got $((t1 - t0))."
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	log_test "Default priority $prio_install/$prio_observe"
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	dcb app del dev $swp1 default-prio $prio_install
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}
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test_defprio()
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{
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	local prio
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	for prio in {0..7}; do
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		__test_defprio $prio $prio
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	done
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	dcb app add dev $swp1 default-prio 3
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	__test_defprio 0 3
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	__test_defprio 1 3
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	__test_defprio 2 3
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	__test_defprio 4 4
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	__test_defprio 5 5
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	__test_defprio 6 6
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	__test_defprio 7 7
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	dcb app del dev $swp1 default-prio 3
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}
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trap cleanup EXIT
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setup_prepare
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setup_wait
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tests_run
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exit $EXIT_STATUS
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