Merge branch 'netdevsim-implement-devlink-dev_info-op'

Jiri Pirko says:

====================
netdevsim: implement devlink dev_info op

Initial implementation of devlink dev_info op - just driver name is
filled up and sent to user. Bundled with selftest.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/netdevsim/dev.c

@@ -510,6 +510,13 @@ static int nsim_dev_reload_up(struct devlink *devlink,
 	return nsim_dev_reload_create(nsim_dev, extack);
 }
 
+static int nsim_dev_info_get(struct devlink *devlink,
+			     struct devlink_info_req *req,
+			     struct netlink_ext_ack *extack)
+{
+	return devlink_info_driver_name_put(req, DRV_NAME);
+}
+
 #define NSIM_DEV_FLASH_SIZE 500000
 #define NSIM_DEV_FLASH_CHUNK_SIZE 1000
 #define NSIM_DEV_FLASH_CHUNK_TIME_MS 10
@@ -603,6 +610,7 @@ nsim_dev_devlink_trap_action_set(struct devlink *devlink,
 static const struct devlink_ops nsim_dev_devlink_ops = {
 	.reload_down = nsim_dev_reload_down,
 	.reload_up = nsim_dev_reload_up,
+	.info_get = nsim_dev_info_get,
 	.flash_update = nsim_dev_flash_update,
 	.trap_init = nsim_dev_devlink_trap_init,
 	.trap_action_set = nsim_dev_devlink_trap_action_set,

tools/testing/selftests/drivers/net/netdevsim/devlink.sh

@@ -4,7 +4,7 @@
 lib_dir=$(dirname $0)/../../../net/forwarding
 
 ALL_TESTS="fw_flash_test params_test regions_test reload_test \
-	   netns_reload_test resource_test"
+	   netns_reload_test resource_test dev_info_test"
 NUM_NETIFS=0
 source $lib_dir/lib.sh
 
@@ -284,6 +284,25 @@ resource_test()
 	log_test "resource test"
 }
 
+info_get()
+{
+	local name=$1
+
+	cmd_jq "devlink dev info $DL_HANDLE -j" ".[][][\"$name\"]" "-e"
+}
+
+dev_info_test()
+{
+	RET=0
+
+	driver=$(info_get "driver")
+	check_err $? "Failed to get driver name"
+	[ "$driver" == "netdevsim" ]
+	check_err $? "Unexpected driver name $driver"
+
+	log_test "dev_info test"
+}
+
 setup_prepare()
 {
 	modprobe netdevsim