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Commit 1ba97e67 authored by Petr Machata's avatar Petr Machata Committed by David S. Miller
Browse files

selftests: mlxsw: Add mlxsw-specific test for mirror to gretap 



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: default avatarPetr Machata <petrm@mellanox.com>
Reviewed-by: default avatarJiri Pirko <jiri@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e88bc0f2

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

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+217 −0
Original line number Diff line number Diff line 
#!/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