From: Jiri Pirko <jiri@mellanox.com>
Date: Thu, 3 Oct 2019 11:49:40 +0200
Subject: selftests: netdevsim: add tests for devlink reload with resources
Patch-mainline: v5.5-rc1
Git-commit: b74c37fd35a28ddcfcdfbf559e16e380e7ba25aa
References: bsc#1176447
Add couple of tests for devlink reload testing and also resource
limitations testing, along with devlink reload.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
tools/testing/selftests/drivers/net/netdevsim/devlink.sh | 120 ++++++++++++++-
1 file changed, 119 insertions(+), 1 deletion(-)
--- a/tools/testing/selftests/drivers/net/netdevsim/devlink.sh
+++ b/tools/testing/selftests/drivers/net/netdevsim/devlink.sh
@@ -3,7 +3,8 @@
lib_dir=$(dirname $0)/../../../net/forwarding
-ALL_TESTS="fw_flash_test params_test regions_test"
+ALL_TESTS="fw_flash_test params_test regions_test reload_test \
+ netns_reload_test resource_test"
NUM_NETIFS=0
source $lib_dir/lib.sh
@@ -142,6 +143,123 @@ regions_test()
log_test "regions test"
}
+reload_test()
+{
+ RET=0
+
+ devlink dev reload $DL_HANDLE
+ check_err $? "Failed to reload"
+
+ log_test "reload test"
+}
+
+netns_reload_test()
+{
+ RET=0
+
+ ip netns add testns1
+ check_err $? "Failed add netns \"testns1\""
+ ip netns add testns2
+ check_err $? "Failed add netns \"testns2\""
+
+ devlink dev reload $DL_HANDLE netns testns1
+ check_err $? "Failed to reload into netns \"testns1\""
+
+ devlink -N testns1 dev reload $DL_HANDLE netns testns2
+ check_err $? "Failed to reload from netns \"testns1\" into netns \"testns2\""
+
+ ip netns del testns2
+ ip netns del testns1
+
+ log_test "netns reload test"
+}
+
+DUMMYDEV="dummytest"
+
+res_val_get()
+{
+ local netns=$1
+ local parentname=$2
+ local name=$3
+ local type=$4
+
+ cmd_jq "devlink -N $netns resource show $DL_HANDLE -j" \
+ ".[][][] | select(.name == \"$parentname\").resources[] \
+ | select(.name == \"$name\").$type"
+}
+
+resource_test()
+{
+ RET=0
+
+ ip netns add testns1
+ check_err $? "Failed add netns \"testns1\""
+ ip netns add testns2
+ check_err $? "Failed add netns \"testns2\""
+
+ devlink dev reload $DL_HANDLE netns testns1
+ check_err $? "Failed to reload into netns \"testns1\""
+
+ # Create dummy dev to add the address and routes on.
+
+ ip -n testns1 link add name $DUMMYDEV type dummy
+ check_err $? "Failed create dummy device"
+ ip -n testns1 link set $DUMMYDEV up
+ check_err $? "Failed bring up dummy device"
+ ip -n testns1 a a 192.0.1.1/24 dev $DUMMYDEV
+ check_err $? "Failed add an IP address to dummy device"
+
+ local occ=$(res_val_get testns1 IPv4 fib occ)
+ local limit=$((occ+1))
+
+ # Set fib size limit to handle one another route only.
+
+ devlink -N testns1 resource set $DL_HANDLE path IPv4/fib size $limit
+ check_err $? "Failed to set IPv4/fib resource size"
+ local size_new=$(res_val_get testns1 IPv4 fib size_new)
+ [ "$size_new" -eq "$limit" ]
+ check_err $? "Unexpected \"size_new\" value (got $size_new, expected $limit)"
+
+ devlink -N testns1 dev reload $DL_HANDLE
+ check_err $? "Failed to reload"
+ local size=$(res_val_get testns1 IPv4 fib size)
+ [ "$size" -eq "$limit" ]
+ check_err $? "Unexpected \"size\" value (got $size, expected $limit)"
+
+ # Insert 2 routes, the first is going to be inserted,
+ # the second is expected to fail to be inserted.
+
+ ip -n testns1 r a 192.0.2.0/24 via 192.0.1.2
+ check_err $? "Failed to add route"
+
+ ip -n testns1 r a 192.0.3.0/24 via 192.0.1.2
+ check_fail $? "Unexpected successful route add over limit"
+
+ # Now create another dummy in second network namespace and
+ # insert two routes. That is over the limit of the netdevsim
+ # instance in the first namespace. Move the netdevsim instance
+ # into the second namespace and expect it to fail.
+
+ ip -n testns2 link add name $DUMMYDEV type dummy
+ check_err $? "Failed create dummy device"
+ ip -n testns2 link set $DUMMYDEV up
+ check_err $? "Failed bring up dummy device"
+ ip -n testns2 a a 192.0.1.1/24 dev $DUMMYDEV
+ check_err $? "Failed add an IP address to dummy device"
+ ip -n testns2 r a 192.0.2.0/24 via 192.0.1.2
+ check_err $? "Failed to add route"
+ ip -n testns2 r a 192.0.3.0/24 via 192.0.1.2
+ check_err $? "Failed to add route"
+
+ devlink -N testns1 dev reload $DL_HANDLE netns testns2
+ check_fail $? "Unexpected successful reload from netns \"testns1\" into netns \"testns2\""
+
+ ip netns del testns2
+ ip netns del testns1
+
+ log_test "resource test"
+}
+
setup_prepare()
{
modprobe netdevsim