linux-zen-desktop/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