Test several aspects of offloading mirror to gretap and ip6gretap
netdevices that are specific to mlxsw, such as requirements for TTL and
TOS values.
Signed-off-by: Petr Machata <petrm@xxxxxxxxxxxx>
Reviewed-by: Jiri Pirko <jiri@xxxxxxxxxxxx>
---
.../selftests/drivers/net/mlxsw/mirror_gre.sh | 217 +++++++++++++++++++++
1 file changed, 217 insertions(+)
create mode 100755 tools/testing/selftests/drivers/net/mlxsw/mirror_gre.sh
diff --git a/tools/testing/selftests/drivers/net/mlxsw/mirror_gre.sh b/tools/testing/selftests/drivers/net/mlxsw/mirror_gre.sh
new file mode 100755
index 000000000000..76f1ab4898d9
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/mirror_gre.sh
@@ -0,0 +1,217 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test uses standard topology for testing gretap. See
+# ../../../net/forwarding/mirror_gre_topo_lib.sh for more details.
+#
+# Test offloading various features of offloading gretap mirrors specific to
+# mlxsw.
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+NUM_NETIFS=6
+source $lib_dir/lib.sh
+source $lib_dir/mirror_lib.sh
+source $lib_dir/mirror_gre_lib.sh
+source $lib_dir/mirror_gre_topo_lib.sh
+
+setup_keyful()
+{
+ tunnel_create gt6-key ip6gretap 2001:db8:3::1 2001:db8:3::2 \
+ ttl 100 tos inherit allow-localremote \
+ key 1234
+
+ tunnel_create h3-gt6-key ip6gretap 2001:db8:3::2 2001:db8:3::1 \
+ key 1234
+ ip link set h3-gt6-key vrf v$h3
+ matchall_sink_create h3-gt6-key
+
+ ip address add dev $swp3 2001:db8:3::1/64
+ ip address add dev $h3 2001:db8:3::2/64
+}
+
+cleanup_keyful()
+{
+ ip address del dev $h3 2001:db8:3::2/64
+ ip address del dev $swp3 2001:db8:3::1/64
+
+ tunnel_destroy h3-gt6-key
+ tunnel_destroy gt6-key
+}
+
+setup_soft()
+{
+ # Set up a topology for testing underlay routes that point at an
+ # unsupported soft device.
+
+ tunnel_create gt6-soft ip6gretap 2001:db8:4::1 2001:db8:4::2 \
+ ttl 100 tos inherit allow-localremote
+
+ tunnel_create h3-gt6-soft ip6gretap 2001:db8:4::2 2001:db8:4::1
+ ip link set h3-gt6-soft vrf v$h3
+ matchall_sink_create h3-gt6-soft
+
+ ip link add name v1 type veth peer name v2
+ ip link set dev v1 up
+ ip address add dev v1 2001:db8:4::1/64
+
+ ip link set dev v2 vrf v$h3
+ ip link set dev v2 up
+ ip address add dev v2 2001:db8:4::2/64
+}
+
+cleanup_soft()
+{
+ ip link del dev v1
+
+ tunnel_destroy h3-gt6-soft
+ tunnel_destroy gt6-soft
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ swp3=${NETIFS[p5]}
+ h3=${NETIFS[p6]}
+
+ vrf_prepare
+ mirror_gre_topo_create
+
+ ip address add dev $swp3 2001:db8:2::1/64
+ ip address add dev $h3 2001:db8:2::2/64
+
+ ip address add dev $swp3 192.0.2.129/28
+ ip address add dev $h3 192.0.2.130/28
+
+ setup_keyful
+ setup_soft
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ cleanup_soft
+ cleanup_keyful
+
+ ip address del dev $h3 2001:db8:2::2/64
+ ip address del dev $swp3 2001:db8:2::1/64
+
+ ip address del dev $h3 192.0.2.130/28
+ ip address del dev $swp3 192.0.2.129/28
+
+ mirror_gre_topo_destroy
+ vrf_cleanup
+}
+
+test_span_gre_ttl_inherit()
+{
+ local tundev=$1; shift
+ local type=$1; shift
+ local what=$1; shift
+
+ RET=0
+
+ ip link set dev $tundev type $type ttl inherit
+ mirror_install $swp1 ingress $tundev "matchall $tcflags"
+ fail_test_span_gre_dir $tundev ingress
+
+ ip link set dev $tundev type $type ttl 100
+
+ quick_test_span_gre_dir $tundev ingress
+ mirror_uninstall $swp1 ingress
+
+ log_test "$what: no offload on TTL of inherit ($tcflags)"
+}
+
+test_span_gre_tos_fixed()
+{
+ local tundev=$1; shift
+ local type=$1; shift
+ local what=$1; shift
+
+ RET=0
+
+ ip link set dev $tundev type $type tos 0x10
+ mirror_install $swp1 ingress $tundev "matchall $tcflags"
+ fail_test_span_gre_dir $tundev ingress
+
+ ip link set dev $tundev type $type tos inherit
+ quick_test_span_gre_dir $tundev ingress
+ mirror_uninstall $swp1 ingress
+
+ log_test "$what: no offload on a fixed TOS ($tcflags)"
+}
+
+test_span_failable()
+{
+ local should_fail=$1; shift
+ local tundev=$1; shift
+ local what=$1; shift
+
+ RET=0
+
+ mirror_install $swp1 ingress $tundev "matchall $tcflags"
+ if ((should_fail)); then
+ fail_test_span_gre_dir $tundev ingress
+ else
+ quick_test_span_gre_dir $tundev ingress
+ fi
+ mirror_uninstall $swp1 ingress
+
+ log_test "$what: should_fail=$should_fail ($tcflags)"
+}
+
+test_failable()
+{
+ local should_fail=$1; shift
+
+ test_span_failable $should_fail gt6-key "mirror to keyful gretap"
+ test_span_failable $should_fail gt6-soft "mirror to gretap w/ soft underlay"
+}
+
+test_sw()
+{
+ slow_path_trap_install $swp1 ingress
+ slow_path_trap_install $swp1 egress
+
+ test_failable 0
+
+ slow_path_trap_uninstall $swp1 egress
+ slow_path_trap_uninstall $swp1 ingress
+}
+
+test_hw()
+{
+ test_failable 1
+
+ test_span_gre_tos_fixed gt4 gretap "mirror to gretap"
+ test_span_gre_tos_fixed gt6 ip6gretap "mirror to ip6gretap"
+
+ test_span_gre_ttl_inherit gt4 gretap "mirror to gretap"
+ test_span_gre_ttl_inherit gt6 ip6gretap "mirror to ip6gretap"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+if ! tc_offload_check; then
+ check_err 1 "Could not test offloaded functionality"
+ log_test "mlxsw-specific tests for mirror to gretap"
+ exit
+fi
+
+tcflags="skip_hw"
+test_sw
+
+tcflags="skip_sw"
+test_hw
+
+exit $EXIT_STATUS
--
2.4.11
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