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selftests: forwarding: Add an skbedit priority selftest
Add a test that runs traffic through a port such that skbedit priority action acts on it during forwarding. Test that at egress, it is classified correctly according to the new priority at a PRIO qdisc. Signed-off-by: Petr Machata <petrm@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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tools/testing/selftests/net/forwarding/skbedit_priority.sh
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#!/bin/bash | ||
# SPDX-License-Identifier: GPL-2.0 | ||
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# This test sends traffic from H1 to H2. Either on ingress of $swp1, or on | ||
# egress of $swp2, the traffic is acted upon by an action skbedit priority. The | ||
# new priority should be taken into account when classifying traffic on the PRIO | ||
# qdisc at $swp2. The test verifies that for different priority values, the | ||
# traffic ends up in expected PRIO band. | ||
# | ||
# +----------------------+ +----------------------+ | ||
# | H1 | | H2 | | ||
# | + $h1 | | $h2 + | | ||
# | | 192.0.2.1/28 | | 192.0.2.2/28 | | | ||
# +----|-----------------+ +----------------|-----+ | ||
# | | | ||
# +----|----------------------------------------------------------------|-----+ | ||
# | SW | | | | ||
# | +-|----------------------------------------------------------------|-+ | | ||
# | | + $swp1 BR $swp2 + | | | ||
# | | PRIO | | | ||
# | +--------------------------------------------------------------------+ | | ||
# +---------------------------------------------------------------------------+ | ||
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ALL_TESTS=" | ||
ping_ipv4 | ||
test_ingress | ||
test_egress | ||
" | ||
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NUM_NETIFS=4 | ||
source lib.sh | ||
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: ${HIT_TIMEOUT:=2000} # ms | ||
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h1_create() | ||
{ | ||
simple_if_init $h1 192.0.2.1/28 | ||
} | ||
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h1_destroy() | ||
{ | ||
simple_if_fini $h1 192.0.2.1/28 | ||
} | ||
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h2_create() | ||
{ | ||
simple_if_init $h2 192.0.2.2/28 | ||
} | ||
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h2_destroy() | ||
{ | ||
simple_if_fini $h2 192.0.2.2/28 | ||
} | ||
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switch_create() | ||
{ | ||
ip link add name br1 up type bridge vlan_filtering 1 | ||
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 | ||
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tc qdisc add dev $swp1 clsact | ||
tc qdisc add dev $swp2 clsact | ||
tc qdisc add dev $swp2 root handle 10: \ | ||
prio bands 8 priomap 7 6 5 4 3 2 1 0 | ||
} | ||
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switch_destroy() | ||
{ | ||
tc qdisc del dev $swp2 root | ||
tc qdisc del dev $swp2 clsact | ||
tc qdisc del dev $swp1 clsact | ||
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ip link set dev $swp2 nomaster | ||
ip link set dev $swp1 nomaster | ||
ip link del dev br1 | ||
} | ||
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setup_prepare() | ||
{ | ||
h1=${NETIFS[p1]} | ||
swp1=${NETIFS[p2]} | ||
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swp2=${NETIFS[p3]} | ||
h2=${NETIFS[p4]} | ||
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h2mac=$(mac_get $h2) | ||
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vrf_prepare | ||
h1_create | ||
h2_create | ||
switch_create | ||
} | ||
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cleanup() | ||
{ | ||
pre_cleanup | ||
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switch_destroy | ||
h2_destroy | ||
h1_destroy | ||
vrf_cleanup | ||
} | ||
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ping_ipv4() | ||
{ | ||
ping_test $h1 192.0.2.2 | ||
} | ||
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test_skbedit_priority_one() | ||
{ | ||
local locus=$1; shift | ||
local prio=$1; shift | ||
local classid=$1; shift | ||
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RET=0 | ||
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tc filter add $locus handle 101 pref 1 \ | ||
flower action skbedit priority $prio | ||
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local pkt0=$(qdisc_parent_stats_get $swp2 $classid .packets) | ||
$MZ $h1 -t udp "sp=54321,dp=12345" -c 10 -d 20msec -p 100 \ | ||
-a own -b $h2mac -A 192.0.2.1 -B 192.0.2.2 -q | ||
local pkt1 | ||
pkt1=$(busywait "$HIT_TIMEOUT" until_counter_is ">= $((pkt0 + 10))" \ | ||
qdisc_parent_stats_get $swp2 $classid .packets) | ||
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check_err $? "Expected to get 10 packets on class $classid, but got | ||
$((pkt1 - pkt0))." | ||
log_test "$locus skbedit priority $prio -> classid $classid" | ||
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tc filter del $locus pref 1 | ||
} | ||
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test_ingress() | ||
{ | ||
local prio | ||
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for prio in {0..7}; do | ||
test_skbedit_priority_one "dev $swp1 ingress" \ | ||
$prio 10:$((8 - prio)) | ||
done | ||
} | ||
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test_egress() | ||
{ | ||
local prio | ||
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for prio in {0..7}; do | ||
test_skbedit_priority_one "dev $swp2 egress" \ | ||
$prio 10:$((8 - prio)) | ||
done | ||
} | ||
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trap cleanup EXIT | ||
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setup_prepare | ||
setup_wait | ||
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tests_run | ||
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exit $EXIT_STATUS |