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Date:   Thu, 27 Feb 2020 08:50:13 +0100
From:   Jiri Pirko <jiri@...nulli.us>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org, idosch@...lanox.com,
        mlxsw@...lanox.com, shuah@...nel.org
Subject: [patch net-next 08/16] selftests: mlxsw: Use busywait helper in rtnetlink test

From: Danielle Ratson <danieller@...lanox.com>

Rtnetlink test uses offload indication checks.

Use a busywait helper and wait until the offload indication is set or
fail if it reaches timeout.

Signed-off-by: Danielle Ratson <danieller@...lanox.com>
Reviewed-by: Petr Machata <petrm@...lanox.com>
Signed-off-by: Ido Schimmel <idosch@...lanox.com>
Signed-off-by: Jiri Pirko <jiri@...lanox.com>
---
 .../selftests/drivers/net/mlxsw/rtnetlink.sh  | 68 ++++++++++++-------
 1 file changed, 44 insertions(+), 24 deletions(-)

diff --git a/tools/testing/selftests/drivers/net/mlxsw/rtnetlink.sh b/tools/testing/selftests/drivers/net/mlxsw/rtnetlink.sh
index 5c39e5f6a480..f4031002d5e9 100755
--- a/tools/testing/selftests/drivers/net/mlxsw/rtnetlink.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/rtnetlink.sh
@@ -32,6 +32,7 @@ ALL_TESTS="
 	devlink_reload_test
 "
 NUM_NETIFS=2
+: ${TIMEOUT:=20000} # ms
 source $lib_dir/lib.sh
 source $lib_dir/devlink_lib.sh
 
@@ -360,20 +361,24 @@ vlan_rif_refcount_test()
 	ip link add link br0 name br0.10 up type vlan id 10
 	ip -6 address add 2001:db8:1::1/64 dev br0.10
 
-	ip -6 route get fibmatch 2001:db8:1::2 dev br0.10 | grep -q offload
+	busywait "$TIMEOUT" wait_for_offload \
+		ip -6 route get fibmatch 2001:db8:1::2 dev br0.10
 	check_err $? "vlan rif was not created before adding port to vlan"
 
 	bridge vlan add vid 10 dev $swp1
-	ip -6 route get fibmatch 2001:db8:1::2 dev br0.10 | grep -q offload
+	busywait "$TIMEOUT" wait_for_offload \
+		ip -6 route get fibmatch 2001:db8:1::2 dev br0.10
 	check_err $? "vlan rif was destroyed after adding port to vlan"
 
 	bridge vlan del vid 10 dev $swp1
-	ip -6 route get fibmatch 2001:db8:1::2 dev br0.10 | grep -q offload
+	busywait "$TIMEOUT" wait_for_offload \
+		ip -6 route get fibmatch 2001:db8:1::2 dev br0.10
 	check_err $? "vlan rif was destroyed after removing port from vlan"
 
 	ip link set dev $swp1 nomaster
-	ip -6 route get fibmatch 2001:db8:1::2 dev br0.10 | grep -q offload
-	check_fail $? "vlan rif was not destroyed after unlinking port from bridge"
+	busywait "$TIMEOUT" not wait_for_offload \
+		ip -6 route get fibmatch 2001:db8:1::2 dev br0.10
+	check_err $? "vlan rif was not destroyed after unlinking port from bridge"
 
 	log_test "vlan rif refcount"
 
@@ -401,22 +406,28 @@ subport_rif_refcount_test()
 	ip -6 address add 2001:db8:1::1/64 dev bond1
 	ip -6 address add 2001:db8:2::1/64 dev bond1.10
 
-	ip -6 route get fibmatch 2001:db8:1::2 dev bond1 | grep -q offload
+	busywait "$TIMEOUT" wait_for_offload \
+		ip -6 route get fibmatch 2001:db8:1::2 dev bond1
 	check_err $? "subport rif was not created on lag device"
-	ip -6 route get fibmatch 2001:db8:2::2 dev bond1.10 | grep -q offload
+	busywait "$TIMEOUT" wait_for_offload \
+		ip -6 route get fibmatch 2001:db8:2::2 dev bond1.10
 	check_err $? "subport rif was not created on vlan device"
 
 	ip link set dev $swp1 nomaster
-	ip -6 route get fibmatch 2001:db8:1::2 dev bond1 | grep -q offload
+	busywait "$TIMEOUT" wait_for_offload \
+		ip -6 route get fibmatch 2001:db8:1::2 dev bond1
 	check_err $? "subport rif of lag device was destroyed when should not"
-	ip -6 route get fibmatch 2001:db8:2::2 dev bond1.10 | grep -q offload
+	busywait "$TIMEOUT" wait_for_offload \
+		ip -6 route get fibmatch 2001:db8:2::2 dev bond1.10
 	check_err $? "subport rif of vlan device was destroyed when should not"
 
 	ip link set dev $swp2 nomaster
-	ip -6 route get fibmatch 2001:db8:1::2 dev bond1 | grep -q offload
-	check_fail $? "subport rif of lag device was not destroyed when should"
-	ip -6 route get fibmatch 2001:db8:2::2 dev bond1.10 | grep -q offload
-	check_fail $? "subport rif of vlan device was not destroyed when should"
+	busywait "$TIMEOUT" not wait_for_offload \
+		ip -6 route get fibmatch 2001:db8:1::2 dev bond1
+	check_err $? "subport rif of lag device was not destroyed when should"
+	busywait "$TIMEOUT" not wait_for_offload \
+		ip -6 route get fibmatch 2001:db8:2::2 dev bond1.10
+	check_err $? "subport rif of vlan device was not destroyed when should"
 
 	log_test "subport rif refcount"
 
@@ -575,7 +586,8 @@ bridge_extern_learn_test()
 
 	bridge fdb add de:ad:be:ef:13:37 dev $swp1 master extern_learn
 
-	bridge fdb show brport $swp1 | grep de:ad:be:ef:13:37 | grep -q offload
+	busywait "$TIMEOUT" wait_for_offload \
+		bridge fdb show brport $swp1 de:ad:be:ef:13:37
 	check_err $? "fdb entry not marked as offloaded when should"
 
 	log_test "externally learned fdb entry"
@@ -595,9 +607,11 @@ neigh_offload_test()
 	ip -6 neigh add 2001:db8:1::2 lladdr de:ad:be:ef:13:37 nud perm \
 		dev $swp1
 
-	ip -4 neigh show dev $swp1 | grep 192.0.2.2 | grep -q offload
+	busywait "$TIMEOUT" wait_for_offload \
+		ip -4 neigh show dev $swp1 192.0.2.2
 	check_err $? "ipv4 neigh entry not marked as offloaded when should"
-	ip -6 neigh show dev $swp1 | grep 2001:db8:1::2 | grep -q offload
+	busywait "$TIMEOUT" wait_for_offload \
+		ip -6 neigh show dev $swp1 2001:db8:1::2
 	check_err $? "ipv6 neigh entry not marked as offloaded when should"
 
 	log_test "neighbour offload indication"
@@ -623,25 +637,31 @@ nexthop_offload_test()
 	ip -6 route add 2001:db8:2::/64 vrf v$swp1 \
 		nexthop via 2001:db8:1::2 dev $swp1
 
-	ip -4 route show 198.51.100.0/24 vrf v$swp1 | grep -q offload
+	busywait "$TIMEOUT" wait_for_offload \
+		ip -4 route show 198.51.100.0/24 vrf v$swp1
 	check_err $? "ipv4 nexthop not marked as offloaded when should"
-	ip -6 route show 2001:db8:2::/64 vrf v$swp1 | grep -q offload
+	busywait "$TIMEOUT" wait_for_offload \
+		ip -6 route show 2001:db8:2::/64 vrf v$swp1
 	check_err $? "ipv6 nexthop not marked as offloaded when should"
 
 	ip link set dev $swp2 down
 	sleep 1
 
-	ip -4 route show 198.51.100.0/24 vrf v$swp1 | grep -q offload
-	check_fail $? "ipv4 nexthop marked as offloaded when should not"
-	ip -6 route show 2001:db8:2::/64 vrf v$swp1 | grep -q offload
-	check_fail $? "ipv6 nexthop marked as offloaded when should not"
+	busywait "$TIMEOUT" not wait_for_offload \
+		ip -4 route show 198.51.100.0/24 vrf v$swp1
+	check_err $? "ipv4 nexthop marked as offloaded when should not"
+	busywait "$TIMEOUT" not wait_for_offload \
+		ip -6 route show 2001:db8:2::/64 vrf v$swp1
+	check_err $? "ipv6 nexthop marked as offloaded when should not"
 
 	ip link set dev $swp2 up
 	setup_wait
 
-	ip -4 route show 198.51.100.0/24 vrf v$swp1 | grep -q offload
+	busywait "$TIMEOUT" wait_for_offload \
+		ip -4 route show 198.51.100.0/24 vrf v$swp1
 	check_err $? "ipv4 nexthop not marked as offloaded after neigh add"
-	ip -6 route show 2001:db8:2::/64 vrf v$swp1 | grep -q offload
+	busywait "$TIMEOUT" wait_for_offload \
+		ip -6 route show 2001:db8:2::/64 vrf v$swp1
 	check_err $? "ipv6 nexthop not marked as offloaded after neigh add"
 
 	log_test "nexthop offload indication"
-- 
2.21.1

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