tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#!/bin/bash
2# SPDX-License-Identifier: GPL-2.0
3# Copyright 2022 NXP
4
5# The script is mostly generic, with the exception of the
6# ethtool per-TC counter names ("rx_green_prio_${tc}")
7
8WAIT_TIME=1
9NUM_NETIFS=4
10STABLE_MAC_ADDRS=yes
11NETIF_CREATE=no
12lib_dir=$(dirname $0)/../../../net/forwarding
13source $lib_dir/tc_common.sh
14source $lib_dir/lib.sh
15
16require_command dcb
17
18h1=${NETIFS[p1]}
19swp1=${NETIFS[p2]}
20swp2=${NETIFS[p3]}
21h2=${NETIFS[p4]}
22
23H1_IPV4="192.0.2.1"
24H2_IPV4="192.0.2.2"
25H1_IPV6="2001:db8:1::1"
26H2_IPV6="2001:db8:1::2"
27
28h1_create()
29{
30 simple_if_init $h1 $H1_IPV4/24 $H1_IPV6/64
31}
32
33h1_destroy()
34{
35 simple_if_fini $h1 $H1_IPV4/24 $H1_IPV6/64
36}
37
38h2_create()
39{
40 simple_if_init $h2 $H2_IPV4/24 $H2_IPV6/64
41}
42
43h2_destroy()
44{
45 simple_if_fini $h2 $H2_IPV4/24 $H2_IPV6/64
46}
47
48h1_vlan_create()
49{
50 local vid=$1
51
52 vlan_create $h1 $vid
53 simple_if_init $h1.$vid $H1_IPV4/24 $H1_IPV6/64
54 ip link set $h1.$vid type vlan \
55 egress-qos-map 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7 \
56 ingress-qos-map 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
57}
58
59h1_vlan_destroy()
60{
61 local vid=$1
62
63 simple_if_fini $h1.$vid $H1_IPV4/24 $H1_IPV6/64
64 vlan_destroy $h1 $vid
65}
66
67h2_vlan_create()
68{
69 local vid=$1
70
71 vlan_create $h2 $vid
72 simple_if_init $h2.$vid $H2_IPV4/24 $H2_IPV6/64
73 ip link set $h2.$vid type vlan \
74 egress-qos-map 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7 \
75 ingress-qos-map 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
76}
77
78h2_vlan_destroy()
79{
80 local vid=$1
81
82 simple_if_fini $h2.$vid $H2_IPV4/24 $H2_IPV6/64
83 vlan_destroy $h2 $vid
84}
85
86vlans_prepare()
87{
88 h1_vlan_create 100
89 h2_vlan_create 100
90
91 tc qdisc add dev ${h1}.100 clsact
92 tc filter add dev ${h1}.100 egress protocol ipv4 \
93 flower ip_proto icmp action skbedit priority 3
94 tc filter add dev ${h1}.100 egress protocol ipv6 \
95 flower ip_proto icmpv6 action skbedit priority 3
96}
97
98vlans_destroy()
99{
100 tc qdisc del dev ${h1}.100 clsact
101
102 h1_vlan_destroy 100
103 h2_vlan_destroy 100
104}
105
106switch_create()
107{
108 ip link set ${swp1} up
109 ip link set ${swp2} up
110
111 # Ports should trust VLAN PCP even with vlan_filtering=0
112 ip link add br0 type bridge
113 ip link set ${swp1} master br0
114 ip link set ${swp2} master br0
115 ip link set br0 up
116}
117
118switch_destroy()
119{
120 ip link del br0
121}
122
123setup_prepare()
124{
125 vrf_prepare
126
127 h1_create
128 h2_create
129 switch_create
130}
131
132cleanup()
133{
134 pre_cleanup
135
136 h2_destroy
137 h1_destroy
138 switch_destroy
139
140 vrf_cleanup
141}
142
143dscp_cs_to_tos()
144{
145 local dscp_cs=$1
146
147 # https://datatracker.ietf.org/doc/html/rfc2474
148 # 4.2.2.1 The Class Selector Codepoints
149 echo $((${dscp_cs} << 5))
150}
151
152run_test()
153{
154 local test_name=$1; shift
155 local if_name=$1; shift
156 local tc=$1; shift
157 local tos=$1; shift
158 local counter_name="rx_green_prio_${tc}"
159 local ipv4_before
160 local ipv4_after
161 local ipv6_before
162 local ipv6_after
163
164 ipv4_before=$(ethtool_stats_get ${swp1} "${counter_name}")
165 ping_do ${if_name} $H2_IPV4 "-Q ${tos}"
166 ipv4_after=$(ethtool_stats_get ${swp1} "${counter_name}")
167
168 if [ $((${ipv4_after} - ${ipv4_before})) -lt ${PING_COUNT} ]; then
169 RET=1
170 else
171 RET=0
172 fi
173 log_test "IPv4 ${test_name}"
174
175 ipv6_before=$(ethtool_stats_get ${swp1} "${counter_name}")
176 ping_do ${if_name} $H2_IPV6 "-Q ${tos}"
177 ipv6_after=$(ethtool_stats_get ${swp1} "${counter_name}")
178
179 if [ $((${ipv6_after} - ${ipv6_before})) -lt ${PING_COUNT} ]; then
180 RET=1
181 else
182 RET=0
183 fi
184 log_test "IPv6 ${test_name}"
185}
186
187port_default_prio_get()
188{
189 local if_name=$1
190 local prio
191
192 prio="$(dcb -j app show dev ${if_name} default-prio | \
193 jq '.default_prio[]')"
194 if [ -z "${prio}" ]; then
195 prio=0
196 fi
197
198 echo ${prio}
199}
200
201test_port_default()
202{
203 local orig=$(port_default_prio_get ${swp1})
204 local dmac=$(mac_get ${h2})
205
206 dcb app replace dev ${swp1} default-prio 5
207
208 run_test "Port-default QoS classification" ${h1} 5 0
209
210 dcb app replace dev ${swp1} default-prio ${orig}
211}
212
213test_vlan_pcp()
214{
215 vlans_prepare
216
217 run_test "Trusted VLAN PCP QoS classification" ${h1}.100 3 0
218
219 vlans_destroy
220}
221
222test_ip_dscp()
223{
224 local port_default=$(port_default_prio_get ${swp1})
225 local tos=$(dscp_cs_to_tos 4)
226
227 dcb app add dev ${swp1} dscp-prio CS4:4
228 run_test "Trusted DSCP QoS classification" ${h1} 4 ${tos}
229 dcb app del dev ${swp1} dscp-prio CS4:4
230
231 vlans_prepare
232 run_test "Untrusted DSCP QoS classification follows VLAN PCP" \
233 ${h1}.100 3 ${tos}
234 vlans_destroy
235
236 run_test "Untrusted DSCP QoS classification follows port default" \
237 ${h1} ${port_default} ${tos}
238}
239
240trap cleanup EXIT
241
242ALL_TESTS="
243 test_port_default
244 test_vlan_pcp
245 test_ip_dscp
246"
247
248setup_prepare
249setup_wait
250
251tests_run
252
253exit $EXIT_STATUS