tools/testing/selftests/drivers/net/mlxsw/mirror_gre.sh

   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
  10 lib_dir=$(dirname $0)/../../../net/forwarding
  11
  12 NUM_NETIFS=6
  13 source $lib_dir/lib.sh
  14 source $lib_dir/mirror_lib.sh
  15 source $lib_dir/mirror_gre_lib.sh
  16 source $lib_dir/mirror_gre_topo_lib.sh
  17
  18 setup_keyful()
  19 {
  20         tunnel_create gt6-key ip6gretap 2001:db8:3::1 2001:db8:3::2 \
  21                       ttl 100 tos inherit allow-localremote \
  22                       key 1234
  23
  24         tunnel_create h3-gt6-key ip6gretap 2001:db8:3::2 2001:db8:3::1 \
  25                       key 1234
  26         ip link set h3-gt6-key vrf v$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
  33 cleanup_keyful()
  34 {
  35         ip address del dev $h3 2001:db8:3::2/64
  36         ip address del dev $swp3 2001:db8:3::1/64
  37
  38         tunnel_destroy h3-gt6-key
  39         tunnel_destroy gt6-key
  40 }
  41
  42 setup_soft()
  43 {
  44         # Set up a topology for testing underlay routes that point at an
  45         # unsupported soft device.
  46
  47         tunnel_create gt6-soft ip6gretap 2001:db8:4::1 2001:db8:4::2 \
  48                       ttl 100 tos inherit allow-localremote
  49
  50         tunnel_create h3-gt6-soft ip6gretap 2001:db8:4::2 2001:db8:4::1
  51         ip link set h3-gt6-soft vrf v$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$h3
  59         ip link set dev v2 up
  60         ip address add dev v2 2001:db8:4::2/64
  61 }
  62
  63 cleanup_soft()
  64 {
  65         ip link del dev v1
  66
  67         tunnel_destroy h3-gt6-soft
  68         tunnel_destroy gt6-soft
  69 }
  70
  71 setup_prepare()
  72 {
  73         h1=${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
  95 cleanup()
  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
 112 test_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
 132 test_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
 151 test_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
 170 test_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
 178 test_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
 189 test_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
 200 trap cleanup EXIT
 201
 202 setup_prepare
 203 setup_wait
 204
 205 if ! 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
 209 fi
 210
 211 tcflags="skip_hw"
 212 test_sw
 213
 214 tcflags="skip_sw"
 215 test_hw
 216
 217 exit $EXIT_STATUS