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_${tc}")
7
8 WAIT_TIME=1
9 NUM_NETIFS=4
10 STABLE_MAC_ADDRS=yes
11 NETIF_CREATE=no
12 lib_dir=$(dirname $0)/../../../net/forwarding
13 source $lib_dir/tc_common.sh
14 source $lib_dir/lib.sh
15
16 require_command dcb
17
18 h1=${NETIFS[p1]}
19 swp1=${NETIFS[p2]}
20 swp2=${NETIFS[p3]}
21 h2=${NETIFS[p4]}
22
23 H1_IPV4="192.0.2.1"
24 H2_IPV4="192.0.2.2"
25 H1_IPV6="2001:db8:1::1"
26 H2_IPV6="2001:db8:1::2"
27
28 h1_create()
29 {
30 simple_if_init $h1 $H1_IPV4/24 $H1_IPV6/64
31 }
32
33 h1_destroy()
34 {
35 simple_if_fini $h1 $H1_IPV4/24 $H1_IPV6/64
36 }
37
38 h2_create()
39 {
40 simple_if_init $h2 $H2_IPV4/24 $H2_IPV6/64
41 }
42
43 h2_destroy()
44 {
45 simple_if_fini $h2 $H2_IPV4/24 $H2_IPV6/64
46 }
47
48 h1_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
59 h1_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
67 h2_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
78 h2_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
86 vlans_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
98 vlans_destroy()
99 {
100 tc qdisc del dev ${h1}.100 clsact
101
102 h1_vlan_destroy 100
103 h2_vlan_destroy 100
104 }
105
106 switch_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
118 switch_destroy()
119 {
120 ip link del br0
121 }
122
123 setup_prepare()
124 {
125 vrf_prepare
126
127 h1_create
128 h2_create
129 switch_create
130 }
131
132 cleanup()
133 {
134 pre_cleanup
135
136 h2_destroy
137 h1_destroy
138 switch_destroy
139
140 vrf_cleanup
141 }
142
143 dscp_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
152 run_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
187 port_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 ${prio}
199 }
200
201 test_port_default()
202 {
203 local orig=$(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
213 test_vlan_pcp()
214 {
215 vlans_prepare
216
217 run_test "Trusted VLAN PCP QoS classification" ${h1}.100 3 0
218
219 vlans_destroy
220 }
221
222 test_ip_dscp()
223 {
224 local port_default=$(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
240 trap cleanup EXIT
241
242 ALL_TESTS="
243 test_port_default
244 test_vlan_pcp
245 test_ip_dscp
246 "
247
248 setup_prepare
249 setup_wait
250
251 tests_run
252
253 exit $EXIT_STATUS
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