Commit 26476f6a authored by David S. Miller's avatar David S. Miller
Browse files

Merge branch 'Add-a-mlxsw-specific-test-for-mirror-to-gretap' 



Petr Machata says:

====================
Add a mlxsw-specific test for mirror-to-gretap

Some configurations of mirror-to-gretap are impossible for mlxsw to
offload. Add a test that checks that these out-of-domain conditions are
handled properly by mlxsw.

In patch #1, fix mirror_gre_lib.sh and mirror_gre_topo_lib.sh so that
they can be imported from directories other than forwarding/.

In patch #2, add a test to check handling of several scenarios that
mlxsw is expected to fail to offload.
====================

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parents a2f1483b 1ba97e67

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

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#!/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

tools/testing/selftests/net/forwarding/mirror_gre_lib.sh

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# SPDX-License-Identifier: GPL-2.0



source mirror_lib.sh

source "$relative_path/mirror_lib.sh"



quick_test_span_gre_dir_ips()

{

tools/testing/selftests/net/forwarding/mirror_gre_topo_lib.sh

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@@ -33,7 +33,7 @@ 
#   |                                                                         |

#   +-------------------------------------------------------------------------+



source mirror_topo_lib.sh

source "$relative_path/mirror_topo_lib.sh"



mirror_gre_topo_h3_create()

{

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