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
4# This test uses standard topology for testing gretap. See
5# ../../../net/forwarding/mirror_gre_topo_lib.sh for more details.
6#
7# Test offloading various features of offloading gretap mirrors specific to
8# mlxsw.
9
10lib_dir=$(dirname $0)/../../../net/forwarding
11
12NUM_NETIFS=6
13source $lib_dir/lib.sh
14source $lib_dir/mirror_lib.sh
15source $lib_dir/mirror_gre_lib.sh
16source $lib_dir/mirror_gre_topo_lib.sh
17
18setup_keyful()
19{
20 tunnel_create gt6-key ip6gretap 2001:db8:3::1 2001:db8:3::2 \
21 ttl 100 tos inherit allow-localremote \
22 key 1234
23
24 tunnel_create h3-gt6-key ip6gretap 2001:db8:3::2 2001:db8:3::1 \
25 key 1234
26 ip link set h3-gt6-key vrf v$h3
27 matchall_sink_create h3-gt6-key
28
29 ip address add dev $swp3 2001:db8:3::1/64
30 ip address add dev $h3 2001:db8:3::2/64
31}
32
33cleanup_keyful()
34{
35 ip address del dev $h3 2001:db8:3::2/64
36 ip address del dev $swp3 2001:db8:3::1/64
37
38 tunnel_destroy h3-gt6-key
39 tunnel_destroy gt6-key
40}
41
42setup_soft()
43{
44 # Set up a topology for testing underlay routes that point at an
45 # unsupported soft device.
46
47 tunnel_create gt6-soft ip6gretap 2001:db8:4::1 2001:db8:4::2 \
48 ttl 100 tos inherit allow-localremote
49
50 tunnel_create h3-gt6-soft ip6gretap 2001:db8:4::2 2001:db8:4::1
51 ip link set h3-gt6-soft vrf v$h3
52 matchall_sink_create h3-gt6-soft
53
54 ip link add name v1 type veth peer name v2
55 ip link set dev v1 up
56 ip address add dev v1 2001:db8:4::1/64
57
58 ip link set dev v2 vrf v$h3
59 ip link set dev v2 up
60 ip address add dev v2 2001:db8:4::2/64
61}
62
63cleanup_soft()
64{
65 ip link del dev v1
66
67 tunnel_destroy h3-gt6-soft
68 tunnel_destroy gt6-soft
69}
70
71setup_prepare()
72{
73 h1=${NETIFS[p1]}
74 swp1=${NETIFS[p2]}
75
76 swp2=${NETIFS[p3]}
77 h2=${NETIFS[p4]}
78
79 swp3=${NETIFS[p5]}
80 h3=${NETIFS[p6]}
81
82 vrf_prepare
83 mirror_gre_topo_create
84
85 ip address add dev $swp3 2001:db8:2::1/64
86 ip address add dev $h3 2001:db8:2::2/64
87
88 ip address add dev $swp3 192.0.2.129/28
89 ip address add dev $h3 192.0.2.130/28
90
91 setup_keyful
92 setup_soft
93}
94
95cleanup()
96{
97 pre_cleanup
98
99 cleanup_soft
100 cleanup_keyful
101
102 ip address del dev $h3 2001:db8:2::2/64
103 ip address del dev $swp3 2001:db8:2::1/64
104
105 ip address del dev $h3 192.0.2.130/28
106 ip address del dev $swp3 192.0.2.129/28
107
108 mirror_gre_topo_destroy
109 vrf_cleanup
110}
111
112test_span_gre_ttl_inherit()
113{
114 local tundev=$1; shift
115 local type=$1; shift
116 local what=$1; shift
117
118 RET=0
119
120 ip link set dev $tundev type $type ttl inherit
121 mirror_install $swp1 ingress $tundev "matchall $tcflags"
122 fail_test_span_gre_dir $tundev ingress
123
124 ip link set dev $tundev type $type ttl 100
125
126 quick_test_span_gre_dir $tundev ingress
127 mirror_uninstall $swp1 ingress
128
129 log_test "$what: no offload on TTL of inherit ($tcflags)"
130}
131
132test_span_gre_tos_fixed()
133{
134 local tundev=$1; shift
135 local type=$1; shift
136 local what=$1; shift
137
138 RET=0
139
140 ip link set dev $tundev type $type tos 0x10
141 mirror_install $swp1 ingress $tundev "matchall $tcflags"
142 fail_test_span_gre_dir $tundev ingress
143
144 ip link set dev $tundev type $type tos inherit
145 quick_test_span_gre_dir $tundev ingress
146 mirror_uninstall $swp1 ingress
147
148 log_test "$what: no offload on a fixed TOS ($tcflags)"
149}
150
151test_span_failable()
152{
153 local should_fail=$1; shift
154 local tundev=$1; shift
155 local what=$1; shift
156
157 RET=0
158
159 mirror_install $swp1 ingress $tundev "matchall $tcflags"
160 if ((should_fail)); then
161 fail_test_span_gre_dir $tundev ingress
162 else
163 quick_test_span_gre_dir $tundev ingress
164 fi
165 mirror_uninstall $swp1 ingress
166
167 log_test "$what: should_fail=$should_fail ($tcflags)"
168}
169
170test_failable()
171{
172 local should_fail=$1; shift
173
174 test_span_failable $should_fail gt6-key "mirror to keyful gretap"
175 test_span_failable $should_fail gt6-soft "mirror to gretap w/ soft underlay"
176}
177
178test_sw()
179{
180 slow_path_trap_install $swp1 ingress
181 slow_path_trap_install $swp1 egress
182
183 test_failable 0
184
185 slow_path_trap_uninstall $swp1 egress
186 slow_path_trap_uninstall $swp1 ingress
187}
188
189test_hw()
190{
191 test_failable 1
192
193 test_span_gre_tos_fixed gt4 gretap "mirror to gretap"
194 test_span_gre_tos_fixed gt6 ip6gretap "mirror to ip6gretap"
195
196 test_span_gre_ttl_inherit gt4 gretap "mirror to gretap"
197 test_span_gre_ttl_inherit gt6 ip6gretap "mirror to ip6gretap"
198}
199
200trap cleanup EXIT
201
202setup_prepare
203setup_wait
204
205if ! tc_offload_check; then
206 check_err 1 "Could not test offloaded functionality"
207 log_test "mlxsw-specific tests for mirror to gretap"
208 exit
209fi
210
211tcflags="skip_hw"
212test_sw
213
214tcflags="skip_sw"
215test_hw
216
217exit $EXIT_STATUS