selftest: netdevsim: Add devlink port resource doit test

Tests that querying a specific port handle returns the expected
resource name and size.

Signed-off-by: Or Har-Toov <ohartoov@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20260407194107.148063-9-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/tools/testing/selftests/drivers/net/netdevsim/devlink.sh b/tools/testing/selftests/drivers/net/netdevsim/devlink.sh
index 1b529ccaf0508bdec0830867c689562c64c5d1ca..31d1cef548983320fe7e8323b6f5de4005ecd6bf 100755 (executable)
--- a/tools/testing/selftests/drivers/net/netdevsim/devlink.sh
+++ b/tools/testing/selftests/drivers/net/netdevsim/devlink.sh
@@ -5,7 +5,8 @@ lib_dir=$(dirname $0)/../../../net/forwarding
 
 ALL_TESTS="fw_flash_test params_test  \
           params_default_test regions_test reload_test \
-          netns_reload_test resource_test dev_info_test \
+          netns_reload_test resource_test \
+          port_resource_doit_test dev_info_test \
           empty_reporter_test dummy_reporter_test rate_test"
 NUM_NETIFS=0
 source $lib_dir/lib.sh
@@ -768,6 +769,32 @@ rate_node_del()
        devlink port function rate del $handle
 }
 
+port_resource_doit_test()
+{
+       RET=0
+
+       local port_handle="${DL_HANDLE}/0"
+       local name
+       local size
+
+       if ! devlink resource help 2>&1 | grep -q "PORT_INDEX"; then
+               echo "SKIP: devlink resource show with port not supported"
+               return
+       fi
+
+       name=$(cmd_jq "devlink resource show $port_handle -j" \
+                     '.[][][].name')
+       [ "$name" == "test_resource" ]
+       check_err $? "wrong port resource name (got $name)"
+
+       size=$(cmd_jq "devlink resource show $port_handle -j" \
+                     '.[][][].size')
+       [ "$size" == "20" ]
+       check_err $? "wrong port resource size (got $size)"
+
+       log_test "port resource doit test"
+}
+
 rate_test()
 {
        RET=0