diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh
index 1ac6c62271f3..a066ca536ac4 100644
--- a/tools/testing/selftests/net/forwarding/lib.sh
+++ b/tools/testing/selftests/net/forwarding/lib.sh
@@ -321,6 +321,25 @@ simple_if_fini()
 	vrf_destroy $vrf_name
 }
 
+tunnel_create()
+{
+	local name=$1; shift
+	local type=$1; shift
+	local local=$1; shift
+	local remote=$1; shift
+
+	ip link add name $name type $type \
+	   local $local remote $remote "$@"
+	ip link set dev $name up
+}
+
+tunnel_destroy()
+{
+	local name=$1; shift
+
+	ip link del dev $name
+}
+
 master_name_get()
 {
 	local if_name=$1
@@ -335,6 +354,15 @@ link_stats_tx_packets_get()
        ip -j -s link show dev $if_name | jq '.[]["stats64"]["tx"]["packets"]'
 }
 
+tc_rule_stats_get()
+{
+	local dev=$1; shift
+	local pref=$1; shift
+
+	tc -j -s filter show dev $dev ingress pref $pref |
+	jq '.[1].options.actions[].stats.packets'
+}
+
 mac_get()
 {
 	local if_name=$1
@@ -381,6 +409,74 @@ tc_offload_check()
 	return 0
 }
 
+slow_path_trap_install()
+{
+	local dev=$1; shift
+	local direction=$1; shift
+
+	if [ "${tcflags/skip_hw}" != "$tcflags" ]; then
+		# For slow-path testing, we need to install a trap to get to
+		# slow path the packets that would otherwise be switched in HW.
+		tc filter add dev $dev $direction pref 1 \
+		   flower skip_sw action trap
+	fi
+}
+
+slow_path_trap_uninstall()
+{
+	local dev=$1; shift
+	local direction=$1; shift
+
+	if [ "${tcflags/skip_hw}" != "$tcflags" ]; then
+		tc filter del dev $dev $direction pref 1 flower skip_sw
+	fi
+}
+
+__icmp_capture_add_del()
+{
+	local add_del=$1; shift
+	local pref=$1; shift
+	local vsuf=$1; shift
+	local tundev=$1; shift
+	local filter=$1; shift
+
+	tc filter $add_del dev "$tundev" ingress \
+	   proto ip$vsuf pref $pref \
+	   flower ip_proto icmp$vsuf $filter \
+	   action pass
+}
+
+icmp_capture_install()
+{
+	__icmp_capture_add_del add 100 "" "$@"
+}
+
+icmp_capture_uninstall()
+{
+	__icmp_capture_add_del del 100 "" "$@"
+}
+
+icmp6_capture_install()
+{
+	__icmp_capture_add_del add 100 v6 "$@"
+}
+
+icmp6_capture_uninstall()
+{
+	__icmp_capture_add_del del 100 v6 "$@"
+}
+
+matchall_sink_create()
+{
+	local dev=$1; shift
+
+	tc qdisc add dev $dev clsact
+	tc filter add dev $dev ingress \
+	   pref 10000 \
+	   matchall \
+	   action drop
+}
+
 ##############################################################################
 # Tests
 
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre.sh b/tools/testing/selftests/net/forwarding/mirror_gre.sh
new file mode 100755
index 000000000000..a8abc736f67c
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre.sh
@@ -0,0 +1,139 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test uses standard topology for testing gretap. See
+# mirror_gre_topo_lib.sh for more details.
+#
+# Test for "tc action mirred egress mirror" when the device to mirror to is a
+# gretap or ip6gretap netdevice. Expect that the packets come out encapsulated,
+# and another gretap / ip6gretap netdevice is then capable of decapsulating the
+# traffic. Test that the payload is what is expected (ICMP ping request or
+# reply, depending on test).
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+source mirror_gre_topo_lib.sh
+
+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 192.0.2.129/28
+	ip address add dev $h3 192.0.2.130/28
+
+	ip address add dev $swp3 2001:db8:2::1/64
+	ip address add dev $h3 2001:db8:2::2/64
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	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_mac()
+{
+	local tundev=$1; shift
+	local direction=$1; shift
+	local prot=$1; shift
+	local what=$1; shift
+
+	local swp3mac=$(mac_get $swp3)
+	local h3mac=$(mac_get $h3)
+
+	RET=0
+
+	mirror_install $swp1 $direction $tundev "matchall $tcflags"
+	tc qdisc add dev $h3 clsact
+	tc filter add dev $h3 ingress pref 77 prot $prot \
+		flower ip_proto 0x2f src_mac $swp3mac dst_mac $h3mac \
+		action pass
+
+	mirror_test v$h1 192.0.2.1 192.0.2.2 $h3 77 10
+
+	tc filter del dev $h3 ingress pref 77
+	tc qdisc del dev $h3 clsact
+	mirror_uninstall $swp1 $direction
+
+	log_test "$direction $what: envelope MAC ($tcflags)"
+}
+
+test_two_spans()
+{
+	RET=0
+
+	mirror_install $swp1 ingress gt4 "matchall $tcflags"
+	mirror_install $swp1 egress gt6 "matchall $tcflags"
+	quick_test_span_gre_dir gt4 ingress
+	quick_test_span_gre_dir gt6 egress
+
+	mirror_uninstall $swp1 ingress
+	fail_test_span_gre_dir gt4 ingress
+	quick_test_span_gre_dir gt6 egress
+
+	mirror_install $swp1 ingress gt4 "matchall $tcflags"
+	mirror_uninstall $swp1 egress
+	quick_test_span_gre_dir gt4 ingress
+	fail_test_span_gre_dir gt6 egress
+
+	mirror_uninstall $swp1 ingress
+	log_test "two simultaneously configured mirrors ($tcflags)"
+}
+
+test_all()
+{
+	slow_path_trap_install $swp1 ingress
+	slow_path_trap_install $swp1 egress
+
+	full_test_span_gre_dir gt4 ingress 8 0 "mirror to gretap"
+	full_test_span_gre_dir gt6 ingress 8 0 "mirror to ip6gretap"
+	full_test_span_gre_dir gt4 egress 0 8 "mirror to gretap"
+	full_test_span_gre_dir gt6 egress 0 8 "mirror to ip6gretap"
+
+	test_span_gre_mac gt4 ingress ip "mirror to gretap"
+	test_span_gre_mac gt6 ingress ipv6 "mirror to ip6gretap"
+	test_span_gre_mac gt4 egress ip "mirror to gretap"
+	test_span_gre_mac gt6 egress ipv6 "mirror to ip6gretap"
+
+	test_two_spans
+
+	slow_path_trap_uninstall $swp1 egress
+	slow_path_trap_uninstall $swp1 ingress
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tcflags="skip_hw"
+test_all
+
+if ! tc_offload_check; then
+	echo "WARN: Could not test offloaded functionality"
+else
+	tcflags="skip_sw"
+	test_all
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_bound.sh b/tools/testing/selftests/net/forwarding/mirror_gre_bound.sh
new file mode 100755
index 000000000000..3708ac0f400a
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_bound.sh
@@ -0,0 +1,213 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+#   +---------------------+                             +---------------------+
+#   | H1                  |                             |                  H2 |
+#   |     + $h1           |                             |           $h2 +     |
+#   |     | 192.0.2.1/28  |                             |  192.0.2.2/28 |     |
+#   +-----|---------------+                             +---------------|-----+
+#         |                                                             |
+#   +-----|-------------------------------------------------------------|-----+
+#   | SW  o--> mirror                                                   |     |
+#   | +---|-------------------------------------------------------------|---+ |
+#   | |   + $swp1                    BR                           $swp2 +   | |
+#   | +---------------------------------------------------------------------+ |
+#   |                                                                         |
+#   | +---------------------------------------------------------------------+ |
+#   | | OL                      + gt6 (ip6gretap)      + gt4 (gretap)       | |
+#   | |                         : loc=2001:db8:2::1    : loc=192.0.2.129    | |
+#   | |                         : rem=2001:db8:2::2    : rem=192.0.2.130    | |
+#   | |                         : ttl=100              : ttl=100            | |
+#   | |                         : tos=inherit          : tos=inherit        | |
+#   | +-------------------------:--|-------------------:--|-----------------+ |
+#   |                           :  |                   :  |                   |
+#   | +-------------------------:--|-------------------:--|-----------------+ |
+#   | | UL                      :  |,---------------------'                 | |
+#   | |   + $swp3               :  ||                  :                    | |
+#   | |   | 192.0.2.129/28      :  vv                  :                    | |
+#   | |   | 2001:db8:2::1/64    :  + ul (dummy)        :                    | |
+#   | +---|---------------------:----------------------:--------------------+ |
+#   +-----|---------------------:----------------------:----------------------+
+#         |                     :                      :
+#   +-----|---------------------:----------------------:----------------------+
+#   | H3  + $h3                 + h3-gt6 (ip6gretap)   + h3-gt4 (gretap)      |
+#   |       192.0.2.130/28        loc=2001:db8:2::2      loc=192.0.2.130      |
+#   |       2001:db8:2::2/64      rem=2001:db8:2::1      rem=192.0.2.129      |
+#   |                             ttl=100                ttl=100              |
+#   |                             tos=inherit            tos=inherit          |
+#   |                                                                         |
+#   +-------------------------------------------------------------------------+
+#
+# This tests mirroring to gretap and ip6gretap configured in an overlay /
+# underlay manner, i.e. with a bound dummy device that marks underlay VRF where
+# the encapsulated packed should be routed.
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/28
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 192.0.2.1/28
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.2/28
+}
+
+h2_destroy()
+{
+	simple_if_fini $h2 192.0.2.2/28
+}
+
+h3_create()
+{
+	simple_if_init $h3 192.0.2.130/28 2001:db8:2::2/64
+
+	tunnel_create h3-gt4 gretap 192.0.2.130 192.0.2.129
+	ip link set h3-gt4 vrf v$h3
+	matchall_sink_create h3-gt4
+
+	tunnel_create h3-gt6 ip6gretap 2001:db8:2::2 2001:db8:2::1
+	ip link set h3-gt6 vrf v$h3
+	matchall_sink_create h3-gt6
+}
+
+h3_destroy()
+{
+	tunnel_destroy h3-gt6
+	tunnel_destroy h3-gt4
+
+	simple_if_fini $h3 192.0.2.130/28 2001:db8:2::2/64
+}
+
+switch_create()
+{
+	# Bridge between H1 and H2.
+
+	ip link add name br1 type bridge vlan_filtering 1
+	ip link set dev br1 up
+
+	ip link set dev $swp1 master br1
+	ip link set dev $swp1 up
+
+	ip link set dev $swp2 master br1
+	ip link set dev $swp2 up
+
+	tc qdisc add dev $swp1 clsact
+
+	# Underlay.
+
+	simple_if_init $swp3 192.0.2.129/28 2001:db8:2::1/64
+
+	ip link add name ul type dummy
+	ip link set dev ul master v$swp3
+	ip link set dev ul up
+
+	# Overlay.
+
+	vrf_create vrf-ol
+	ip link set dev vrf-ol up
+
+	tunnel_create gt4 gretap 192.0.2.129 192.0.2.130 \
+		      ttl 100 tos inherit dev ul
+	ip link set dev gt4 master vrf-ol
+	ip link set dev gt4 up
+
+	tunnel_create gt6 ip6gretap 2001:db8:2::1 2001:db8:2::2 \
+		      ttl 100 tos inherit dev ul allow-localremote
+	ip link set dev gt6 master vrf-ol
+	ip link set dev gt6 up
+}
+
+switch_destroy()
+{
+	vrf_destroy vrf-ol
+
+	tunnel_destroy gt6
+	tunnel_destroy gt4
+
+	simple_if_fini $swp3 192.0.2.129/28 2001:db8:2::1/64
+
+	ip link del dev ul
+
+	tc qdisc del dev $swp1 clsact
+
+	ip link set dev $swp1 down
+	ip link set dev $swp2 down
+	ip link del dev br1
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	swp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+	h3_create
+
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+
+	h3_destroy
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+test_all()
+{
+	RET=0
+
+	slow_path_trap_install $swp1 ingress
+	slow_path_trap_install $swp1 egress
+
+	full_test_span_gre_dir gt4 ingress 8 0 "mirror to gretap w/ UL"
+	full_test_span_gre_dir gt6 ingress 8 0 "mirror to ip6gretap w/ UL"
+
+	full_test_span_gre_dir gt4 egress  0 8 "mirror to gretap w/ UL"
+	full_test_span_gre_dir gt6 egress  0 8 "mirror to ip6gretap w/ UL"
+
+	slow_path_trap_uninstall $swp1 egress
+	slow_path_trap_uninstall $swp1 ingress
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tcflags="skip_hw"
+test_all
+
+if ! tc_offload_check; then
+	echo "WARN: Could not test offloaded functionality"
+else
+	tcflags="skip_sw"
+	test_all
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_changes.sh b/tools/testing/selftests/net/forwarding/mirror_gre_changes.sh
new file mode 100755
index 000000000000..0ed288ac76d2
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_changes.sh
@@ -0,0 +1,194 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test uses standard topology for testing gretap. See
+# mirror_gre_topo_lib.sh for more details.
+#
+# Test how mirrors to gretap and ip6gretap react to changes to relevant
+# configuration.
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+source mirror_gre_topo_lib.sh
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	swp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	vrf_prepare
+	mirror_gre_topo_create
+
+	# This test downs $swp3, which deletes the configured IPv6 address
+	# unless this sysctl is set.
+	local key=net.ipv6.conf.$swp3.keep_addr_on_down
+	SWP3_KEEP_ADDR_ON_DOWN=$(sysctl -n $key)
+	sysctl -qw $key=1
+
+	ip address add dev $swp3 192.0.2.129/28
+	ip address add dev $h3 192.0.2.130/28
+
+	ip address add dev $swp3 2001:db8:2::1/64
+	ip address add dev $h3 2001:db8:2::2/64
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	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 $swp3 192.0.2.129/28
+
+	local key=net.ipv6.conf.$swp3.keep_addr_on_down
+	sysctl -qw $key=$SWP3_KEEP_ADDR_ON_DOWN
+
+	mirror_gre_topo_destroy
+	vrf_cleanup
+}
+
+test_span_gre_ttl()
+{
+	local tundev=$1; shift
+	local type=$1; shift
+	local prot=$1; shift
+	local what=$1; shift
+
+	RET=0
+
+	mirror_install $swp1 ingress $tundev "matchall $tcflags"
+	tc qdisc add dev $h3 clsact
+	tc filter add dev $h3 ingress pref 77 prot $prot \
+		flower ip_ttl 50 action pass
+
+	mirror_test v$h1 192.0.2.1 192.0.2.2 $h3 77 0
+
+	ip link set dev $tundev type $type ttl 50
+	mirror_test v$h1 192.0.2.1 192.0.2.2 $h3 77 10
+
+	ip link set dev $tundev type $type ttl 100
+	tc filter del dev $h3 ingress pref 77
+	tc qdisc del dev $h3 clsact
+	mirror_uninstall $swp1 ingress
+
+	log_test "$what: TTL change ($tcflags)"
+}
+
+test_span_gre_tun_up()
+{
+	local tundev=$1; shift
+	local what=$1; shift
+
+	RET=0
+
+	ip link set dev $tundev down
+	mirror_install $swp1 ingress $tundev "matchall $tcflags"
+	fail_test_span_gre_dir $tundev ingress
+
+	ip link set dev $tundev up
+
+	quick_test_span_gre_dir $tundev ingress
+	mirror_uninstall $swp1 ingress
+
+	log_test "$what: tunnel down/up ($tcflags)"
+}
+
+test_span_gre_egress_up()
+{
+	local tundev=$1; shift
+	local remote_ip=$1; shift
+	local what=$1; shift
+
+	RET=0
+
+	ip link set dev $swp3 down
+	mirror_install $swp1 ingress $tundev "matchall $tcflags"
+	fail_test_span_gre_dir $tundev ingress
+
+	# After setting the device up, wait for neighbor to get resolved so that
+	# we can expect mirroring to work.
+	ip link set dev $swp3 up
+	while true; do
+		ip neigh sh dev $swp3 $remote_ip nud reachable |
+		    grep -q ^
+		if [[ $? -ne 0 ]]; then
+			sleep 1
+		else
+			break
+		fi
+	done
+
+	quick_test_span_gre_dir $tundev ingress
+	mirror_uninstall $swp1 ingress
+
+	log_test "$what: egress down/up ($tcflags)"
+}
+
+test_span_gre_remote_ip()
+{
+	local tundev=$1; shift
+	local type=$1; shift
+	local correct_ip=$1; shift
+	local wrong_ip=$1; shift
+	local what=$1; shift
+
+	RET=0
+
+	ip link set dev $tundev type $type remote $wrong_ip
+	mirror_install $swp1 ingress $tundev "matchall $tcflags"
+	fail_test_span_gre_dir $tundev ingress
+
+	ip link set dev $tundev type $type remote $correct_ip
+	quick_test_span_gre_dir $tundev ingress
+	mirror_uninstall $swp1 ingress
+
+	log_test "$what: remote address change ($tcflags)"
+}
+
+test_all()
+{
+	slow_path_trap_install $swp1 ingress
+	slow_path_trap_install $swp1 egress
+
+	test_span_gre_ttl gt4 gretap ip "mirror to gretap"
+	test_span_gre_ttl gt6 ip6gretap ipv6 "mirror to ip6gretap"
+
+	test_span_gre_tun_up gt4 "mirror to gretap"
+	test_span_gre_tun_up gt6 "mirror to ip6gretap"
+
+	test_span_gre_egress_up gt4 192.0.2.130 "mirror to gretap"
+	test_span_gre_egress_up gt6 2001:db8:2::2 "mirror to ip6gretap"
+
+	test_span_gre_remote_ip gt4 gretap 192.0.2.130 192.0.2.132 "mirror to gretap"
+	test_span_gre_remote_ip gt6 ip6gretap 2001:db8:2::2 2001:db8:2::4 "mirror to ip6gretap"
+
+	slow_path_trap_uninstall $swp1 egress
+	slow_path_trap_uninstall $swp1 ingress
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tcflags="skip_hw"
+test_all
+
+if ! tc_offload_check; then
+	echo "WARN: Could not test offloaded functionality"
+else
+	tcflags="skip_sw"
+	test_all
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_flower.sh b/tools/testing/selftests/net/forwarding/mirror_gre_flower.sh
new file mode 100755
index 000000000000..178a42d771aa
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_flower.sh
@@ -0,0 +1,116 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test uses standard topology for testing gretap. See
+# mirror_gre_topo_lib.sh for more details.
+#
+# This tests flower-triggered mirroring to gretap and ip6gretap netdevices. The
+# interfaces on H1 and H2 have two addresses each. Flower match on one of the
+# addresses is configured with mirror action. It is expected that when pinging
+# this address, mirroring takes place, whereas when pinging the other one,
+# there's no mirroring.
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+source mirror_gre_topo_lib.sh
+
+setup_prepare()
+{
+	h1=${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 192.0.2.129/28
+	ip address add dev $h3 192.0.2.130/28
+
+	ip address add dev $swp3 2001:db8:2::1/64
+	ip address add dev $h3 2001:db8:2::2/64
+
+	ip address add dev $h1 192.0.2.3/28
+	ip address add dev $h2 192.0.2.4/28
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ip address del dev $h2 192.0.2.4/28
+	ip address del dev $h1 192.0.2.3/28
+
+	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 $swp3 192.0.2.129/28
+
+	mirror_gre_topo_destroy
+	vrf_cleanup
+}
+
+test_span_gre_dir_acl()
+{
+	test_span_gre_dir_ips "$@" 192.0.2.3 192.0.2.4
+}
+
+full_test_span_gre_dir_acl()
+{
+	local tundev=$1; shift
+	local direction=$1; shift
+	local forward_type=$1; shift
+	local backward_type=$1; shift
+	local match_dip=$1; shift
+	local what=$1; shift
+
+	mirror_install $swp1 $direction $tundev \
+		       "protocol ip flower $tcflags dst_ip $match_dip"
+	fail_test_span_gre_dir $tundev $direction
+	test_span_gre_dir_acl "$tundev" "$direction" \
+			  "$forward_type" "$backward_type"
+	mirror_uninstall $swp1 $direction
+
+	log_test "$direction $what ($tcflags)"
+}
+
+test_all()
+{
+	RET=0
+
+	slow_path_trap_install $swp1 ingress
+	slow_path_trap_install $swp1 egress
+
+	full_test_span_gre_dir_acl gt4 ingress 8 0 192.0.2.4 "ACL mirror to gretap"
+	full_test_span_gre_dir_acl gt6 ingress 8 0 192.0.2.4 "ACL mirror to ip6gretap"
+
+	full_test_span_gre_dir_acl gt4 egress 0 8 192.0.2.3 "ACL mirror to gretap"
+	full_test_span_gre_dir_acl gt6 egress 0 8 192.0.2.3 "ACL mirror to ip6gretap"
+
+	slow_path_trap_uninstall $swp1 egress
+	slow_path_trap_uninstall $swp1 ingress
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tcflags="skip_hw"
+test_all
+
+if ! tc_offload_check; then
+	echo "WARN: Could not test offloaded functionality"
+else
+	tcflags="skip_sw"
+	test_all
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_lib.sh b/tools/testing/selftests/net/forwarding/mirror_gre_lib.sh
new file mode 100644
index 000000000000..207ffd167dba
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_lib.sh
@@ -0,0 +1,85 @@
+# SPDX-License-Identifier: GPL-2.0
+
+do_test_span_gre_dir_ips()
+{
+	local expect=$1; shift
+	local tundev=$1; shift
+	local direction=$1; shift
+	local ip1=$1; shift
+	local ip2=$1; shift
+
+	icmp_capture_install h3-$tundev
+	mirror_test v$h1 $ip1 $ip2 h3-$tundev 100 $expect
+	mirror_test v$h2 $ip2 $ip1 h3-$tundev 100 $expect
+	icmp_capture_uninstall h3-$tundev
+}
+
+quick_test_span_gre_dir_ips()
+{
+	do_test_span_gre_dir_ips 10 "$@"
+}
+
+fail_test_span_gre_dir_ips()
+{
+	do_test_span_gre_dir_ips 0 "$@"
+}
+
+test_span_gre_dir_ips()
+{
+	local tundev=$1; shift
+	local direction=$1; shift
+	local forward_type=$1; shift
+	local backward_type=$1; shift
+	local ip1=$1; shift
+	local ip2=$1; shift
+
+	quick_test_span_gre_dir_ips "$tundev" "$direction" "$ip1" "$ip2"
+
+	icmp_capture_install h3-$tundev "type $forward_type"
+	mirror_test v$h1 $ip1 $ip2 h3-$tundev 100 10
+	icmp_capture_uninstall h3-$tundev
+
+	icmp_capture_install h3-$tundev "type $backward_type"
+	mirror_test v$h2 $ip2 $ip1 h3-$tundev 100 10
+	icmp_capture_uninstall h3-$tundev
+}
+
+full_test_span_gre_dir_ips()
+{
+	local tundev=$1; shift
+	local direction=$1; shift
+	local forward_type=$1; shift
+	local backward_type=$1; shift
+	local what=$1; shift
+	local ip1=$1; shift
+	local ip2=$1; shift
+
+	RET=0
+
+	mirror_install $swp1 $direction $tundev "matchall $tcflags"
+	test_span_gre_dir_ips "$tundev" "$direction" "$forward_type" \
+			      "$backward_type" "$ip1" "$ip2"
+	mirror_uninstall $swp1 $direction
+
+	log_test "$direction $what ($tcflags)"
+}
+
+quick_test_span_gre_dir()
+{
+	quick_test_span_gre_dir_ips "$@" 192.0.2.1 192.0.2.2
+}
+
+fail_test_span_gre_dir()
+{
+	fail_test_span_gre_dir_ips "$@" 192.0.2.1 192.0.2.2
+}
+
+test_span_gre_dir()
+{
+	test_span_gre_dir_ips "$@" 192.0.2.1 192.0.2.2
+}
+
+full_test_span_gre_dir()
+{
+	full_test_span_gre_dir_ips "$@" 192.0.2.1 192.0.2.2
+}
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_neigh.sh b/tools/testing/selftests/net/forwarding/mirror_gre_neigh.sh
new file mode 100755
index 000000000000..1ca29ba4f338
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_neigh.sh
@@ -0,0 +1,101 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test uses standard topology for testing gretap. See
+# mirror_gre_topo_lib.sh for more details.
+#
+# Test for mirroring to gretap and ip6gretap, such that the neighbor entry for
+# the tunnel remote address has invalid address at the time that the mirroring
+# is set up. Later on, the neighbor is deleted and it is expected to be
+# reinitialized using the usual ARP process, and the mirroring offload updated.
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+source mirror_gre_topo_lib.sh
+
+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 192.0.2.129/28
+	ip address add dev $h3 192.0.2.130/28
+
+	ip address add dev $swp3 2001:db8:2::1/64
+	ip address add dev $h3 2001:db8:2::2/64
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	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_neigh()
+{
+	local addr=$1; shift
+	local tundev=$1; shift
+	local direction=$1; shift
+	local what=$1; shift
+
+	RET=0
+
+	ip neigh replace dev $swp3 $addr lladdr 00:11:22:33:44:55
+	mirror_install $swp1 $direction $tundev "matchall $tcflags"
+	fail_test_span_gre_dir $tundev ingress
+	ip neigh del dev $swp3 $addr
+	quick_test_span_gre_dir $tundev ingress
+	mirror_uninstall $swp1 $direction
+
+	log_test "$direction $what: neighbor change ($tcflags)"
+}
+
+test_all()
+{
+	slow_path_trap_install $swp1 ingress
+	slow_path_trap_install $swp1 egress
+
+	test_span_gre_neigh 192.0.2.130 gt4 ingress "mirror to gretap"
+	test_span_gre_neigh 192.0.2.130 gt4 egress "mirror to gretap"
+	test_span_gre_neigh 2001:db8:2::2 gt6 ingress "mirror to ip6gretap"
+	test_span_gre_neigh 2001:db8:2::2 gt6 egress "mirror to ip6gretap"
+
+	slow_path_trap_uninstall $swp1 egress
+	slow_path_trap_uninstall $swp1 ingress
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tcflags="skip_hw"
+test_all
+
+if ! tc_offload_check; then
+	echo "WARN: Could not test offloaded functionality"
+else
+	tcflags="skip_sw"
+	test_all
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_nh.sh b/tools/testing/selftests/net/forwarding/mirror_gre_nh.sh
new file mode 100755
index 000000000000..9ac70978541f
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_nh.sh
@@ -0,0 +1,117 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test uses standard topology for testing gretap. See
+# mirror_gre_topo_lib.sh for more details.
+#
+# Test that gretap and ip6gretap mirroring works when the other tunnel endpoint
+# is reachable through a next-hop route (as opposed to directly-attached route).
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+source mirror_gre_topo_lib.sh
+
+setup_prepare()
+{
+	h1=${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 192.0.2.161/28
+	ip address add dev $h3 192.0.2.162/28
+	ip address add dev gt4 192.0.2.129/32
+	ip address add dev h3-gt4 192.0.2.130/32
+
+	# IPv6 route can't be added after address. Such routes are rejected due
+	# to the gateway address having been configured on the local system. It
+	# works the other way around though.
+	ip address add dev $swp3 2001:db8:4::1/64
+	ip -6 route add 2001:db8:2::2/128 via 2001:db8:4::2
+	ip address add dev $h3 2001:db8:4::2/64
+	ip address add dev gt6 2001:db8:2::1
+	ip address add dev h3-gt6 2001:db8:2::2
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ip -6 route del 2001:db8:2::2/128 via 2001:db8:4::2
+	ip address del dev $h3 2001:db8:4::2/64
+	ip address del dev $swp3 2001:db8:4::1/64
+
+	ip address del dev $h3 192.0.2.162/28
+	ip address del dev $swp3 192.0.2.161/28
+
+	mirror_gre_topo_destroy
+	vrf_cleanup
+}
+
+test_gretap()
+{
+	RET=0
+	mirror_install $swp1 ingress gt4 "matchall $tcflags"
+
+	# For IPv4, test that there's no mirroring without the route directing
+	# the traffic to tunnel remote address. Then add it and test that
+	# mirroring starts. For IPv6 we can't test this due to the limitation
+	# that routes for locally-specified IPv6 addresses can't be added.
+	fail_test_span_gre_dir gt4 ingress
+
+	ip route add 192.0.2.130/32 via 192.0.2.162
+	quick_test_span_gre_dir gt4 ingress
+	ip route del 192.0.2.130/32 via 192.0.2.162
+
+	mirror_uninstall $swp1 ingress
+	log_test "mirror to gre with next-hop remote ($tcflags)"
+}
+
+test_ip6gretap()
+{
+	RET=0
+
+	mirror_install $swp1 ingress gt6 "matchall $tcflags"
+	quick_test_span_gre_dir gt6 ingress
+	mirror_uninstall $swp1 ingress
+
+	log_test "mirror to ip6gre with next-hop remote ($tcflags)"
+}
+
+test_all()
+{
+	slow_path_trap_install $swp1 ingress
+	slow_path_trap_install $swp1 egress
+
+	test_gretap
+	test_ip6gretap
+
+	slow_path_trap_uninstall $swp1 egress
+	slow_path_trap_uninstall $swp1 ingress
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tcflags="skip_hw"
+test_all
+
+if ! tc_offload_check; then
+	echo "WARN: Could not test offloaded functionality"
+else
+	tcflags="skip_sw"
+	test_all
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_topo_lib.sh b/tools/testing/selftests/net/forwarding/mirror_gre_topo_lib.sh
new file mode 100644
index 000000000000..b3ceda2b4197
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_topo_lib.sh
@@ -0,0 +1,129 @@
+# SPDX-License-Identifier: GPL-2.0
+
+# This is the standard topology for testing mirroring to gretap and ip6gretap
+# netdevices. The tests that use it tweak it in one way or another--importantly,
+# $swp3 and $h3 need to have addresses set up.
+#
+#   +---------------------+                             +---------------------+
+#   | H1                  |                             |                  H2 |
+#   |     + $h1           |                             |           $h2 +     |
+#   |     | 192.0.2.1/28  |                             |  192.0.2.2/28 |     |
+#   +-----|---------------+                             +---------------|-----+
+#         |                                                             |
+#   +-----|-------------------------------------------------------------|-----+
+#   | SW  o--> mirror                                                   |     |
+#   | +---|-------------------------------------------------------------|---+ |
+#   | |   + $swp1                    BR                           $swp2 +   | |
+#   | +---------------------------------------------------------------------+ |
+#   |                                                                         |
+#   |     + $swp3               + gt6 (ip6gretap)      + gt4 (gretap)         |
+#   |     |                     : loc=2001:db8:2::1    : loc=192.0.2.129      |
+#   |     |                     : rem=2001:db8:2::2    : rem=192.0.2.130      |
+#   |     |                     : ttl=100              : ttl=100              |
+#   |     |                     : tos=inherit          : tos=inherit          |
+#   |     |                     :                      :                      |
+#   +-----|---------------------:----------------------:----------------------+
+#         |                     :                      :
+#   +-----|---------------------:----------------------:----------------------+
+#   | H3  + $h3                 + h3-gt6 (ip6gretap)   + h3-gt4 (gretap)      |
+#   |                             loc=2001:db8:2::2      loc=192.0.2.130      |
+#   |                             rem=2001:db8:2::1      rem=192.0.2.129      |
+#   |                             ttl=100                ttl=100              |
+#   |                             tos=inherit            tos=inherit          |
+#   |                                                                         |
+#   +-------------------------------------------------------------------------+
+
+mirror_gre_topo_h1_create()
+{
+	simple_if_init $h1 192.0.2.1/28
+}
+
+mirror_gre_topo_h1_destroy()
+{
+	simple_if_fini $h1 192.0.2.1/28
+}
+
+mirror_gre_topo_h2_create()
+{
+	simple_if_init $h2 192.0.2.2/28
+}
+
+mirror_gre_topo_h2_destroy()
+{
+	simple_if_fini $h2 192.0.2.2/28
+}
+
+mirror_gre_topo_h3_create()
+{
+	simple_if_init $h3
+
+	tunnel_create h3-gt4 gretap 192.0.2.130 192.0.2.129
+	ip link set h3-gt4 vrf v$h3
+	matchall_sink_create h3-gt4
+
+	tunnel_create h3-gt6 ip6gretap 2001:db8:2::2 2001:db8:2::1
+	ip link set h3-gt6 vrf v$h3
+	matchall_sink_create h3-gt6
+}
+
+mirror_gre_topo_h3_destroy()
+{
+	tunnel_destroy h3-gt6
+	tunnel_destroy h3-gt4
+
+	simple_if_fini $h3
+}
+
+mirror_gre_topo_switch_create()
+{
+	ip link set dev $swp3 up
+
+	ip link add name br1 type bridge vlan_filtering 1
+	ip link set dev br1 up
+
+	ip link set dev $swp1 master br1
+	ip link set dev $swp1 up
+
+	ip link set dev $swp2 master br1
+	ip link set dev $swp2 up
+
+	tunnel_create gt4 gretap 192.0.2.129 192.0.2.130 \
+		      ttl 100 tos inherit
+
+	tunnel_create gt6 ip6gretap 2001:db8:2::1 2001:db8:2::2 \
+		      ttl 100 tos inherit allow-localremote
+
+	tc qdisc add dev $swp1 clsact
+}
+
+mirror_gre_topo_switch_destroy()
+{
+	tc qdisc del dev $swp1 clsact
+
+	tunnel_destroy gt6
+	tunnel_destroy gt4
+
+	ip link set dev $swp1 down
+	ip link set dev $swp2 down
+	ip link del dev br1
+
+	ip link set dev $swp3 down
+}
+
+mirror_gre_topo_create()
+{
+	mirror_gre_topo_h1_create
+	mirror_gre_topo_h2_create
+	mirror_gre_topo_h3_create
+
+	mirror_gre_topo_switch_create
+}
+
+mirror_gre_topo_destroy()
+{
+	mirror_gre_topo_switch_destroy
+
+	mirror_gre_topo_h3_destroy
+	mirror_gre_topo_h2_destroy
+	mirror_gre_topo_h1_destroy
+}
diff --git a/tools/testing/selftests/net/forwarding/mirror_lib.sh b/tools/testing/selftests/net/forwarding/mirror_lib.sh
new file mode 100644
index 000000000000..e5028a5725e3
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_lib.sh
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: GPL-2.0
+
+mirror_install()
+{
+	local from_dev=$1; shift
+	local direction=$1; shift
+	local to_dev=$1; shift
+	local filter=$1; shift
+
+	tc filter add dev $from_dev $direction \
+	   pref 1000 $filter \
+	   action mirred egress mirror dev $to_dev
+}
+
+mirror_uninstall()
+{
+	local from_dev=$1; shift
+	local direction=$1; shift
+
+	tc filter del dev $swp1 $direction pref 1000
+}
+
+mirror_test()
+{
+	local vrf_name=$1; shift
+	local sip=$1; shift
+	local dip=$1; shift
+	local dev=$1; shift
+	local pref=$1; shift
+	local expect=$1; shift
+
+	local t0=$(tc_rule_stats_get $dev $pref)
+	ip vrf exec $vrf_name \
+	   ${PING} ${sip:+-I $sip} $dip -c 10 -i 0.1 -w 2 &> /dev/null
+	local t1=$(tc_rule_stats_get $dev $pref)
+	local delta=$((t1 - t0))
+	# Tolerate a couple stray extra packets.
+	((expect <= delta && delta <= expect + 2))
+	check_err $? "Expected to capture $expect packets, got $delta."
+}