selftest: netdevsim: Add resource dump and scope filter test

Add resource_dump_test() which verifies dumping resources for all
devices and ports, and tests that scope=dev returns only device-level
resources and scope=port returns only port resources.

Skip if userspace does not support the scope parameter.

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/20260407194107.148063-12-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 31d1cef548983320fe7e8323b6f5de4005ecd6bf..22a626c6cde343be59b057f7321948980f1d252c 100755 (executable)
--- a/tools/testing/selftests/drivers/net/netdevsim/devlink.sh
+++ b/tools/testing/selftests/drivers/net/netdevsim/devlink.sh
@@ -5,7 +5,7 @@ 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 \
+          netns_reload_test resource_test resource_dump_test \
           port_resource_doit_test dev_info_test \
           empty_reporter_test dummy_reporter_test rate_test"
 NUM_NETIFS=0
@@ -483,6 +483,56 @@ resource_test()
        log_test "resource test"
 }
 
+resource_dump_test()
+{
+       RET=0
+
+       local port_jq
+       local dev_jq
+       local dl_jq
+       local count
+
+       dl_jq="with_entries(select(.key | startswith(\"$DL_HANDLE\")))"
+       port_jq="[.[] | $dl_jq | keys |"
+       port_jq+=" map(select(test(\"/.+/\"))) | length] | add"
+       dev_jq="[.[] | $dl_jq | keys |"
+       dev_jq+=" map(select(test(\"/.+/\")|not)) | length] | add"
+
+       if ! devlink resource help 2>&1 | grep -q "scope"; then
+               echo "SKIP: devlink resource show not supported"
+               return
+       fi
+
+       devlink resource show > /dev/null 2>&1
+       check_err $? "Failed to dump all resources"
+
+       count=$(cmd_jq "devlink resource show -j" "$port_jq")
+       [ "$count" -gt "0" ]
+       check_err $? "missing port resources in resource dump"
+
+       count=$(cmd_jq "devlink resource show -j" "$dev_jq")
+       [ "$count" -gt "0" ]
+       check_err $? "missing device resources in resource dump"
+
+       count=$(cmd_jq "devlink resource show scope dev -j" "$dev_jq")
+       [ "$count" -gt "0" ]
+       check_err $? "dev scope missing device resources"
+
+       count=$(cmd_jq "devlink resource show scope dev -j" "$port_jq")
+       [ "$count" -eq "0" ]
+       check_err $? "dev scope returned port resources"
+
+       count=$(cmd_jq "devlink resource show scope port -j" "$port_jq")
+       [ "$count" -gt "0" ]
+       check_err $? "port scope missing port resources"
+
+       count=$(cmd_jq "devlink resource show scope port -j" "$dev_jq")
+       [ "$count" -eq "0" ]
+       check_err $? "port scope returned device resources"
+
+       log_test "resource dump test"
+}
+
 info_get()
 {
        local name=$1