nfp: add .ndo_get_devlink

Support getting devlink instance from a new NDO.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/netronome/nfp/nfp_app.h

@@ -433,4 +433,6 @@ int nfp_app_nic_vnic_alloc(struct nfp_app *app, struct nfp_net *nn,
 int nfp_app_nic_vnic_init_phy_port(struct nfp_pf *pf, struct nfp_app *app,
 				   struct nfp_net *nn, unsigned int id);
 
+struct devlink *nfp_devlink_get_devlink(struct net_device *netdev);
+
 #endif

drivers/net/ethernet/netronome/nfp/nfp_devlink.c

@@ -376,3 +376,14 @@ void nfp_devlink_port_unregister(struct nfp_port *port)
 {
 	devlink_port_unregister(&port->dl_port);
 }
+
+struct devlink *nfp_devlink_get_devlink(struct net_device *netdev)
+{
+	struct nfp_app *app;
+
+	app = nfp_app_from_netdev(netdev);
+	if (!app)
+		return NULL;
+
+	return priv_to_devlink(app->pf);
+}

drivers/net/ethernet/netronome/nfp/nfp_net_common.c

@@ -3531,6 +3531,7 @@ const struct net_device_ops nfp_net_netdev_ops = {
 	.ndo_udp_tunnel_del	= nfp_net_del_vxlan_port,
 	.ndo_bpf		= nfp_net_xdp,
 	.ndo_get_port_parent_id	= nfp_port_get_port_parent_id,
+	.ndo_get_devlink	= nfp_devlink_get_devlink,
 };
 
 /**

drivers/net/ethernet/netronome/nfp/nfp_net_repr.c

@@ -273,6 +273,7 @@ const struct net_device_ops nfp_repr_netdev_ops = {
 	.ndo_set_features	= nfp_port_set_features,
 	.ndo_set_mac_address    = eth_mac_addr,
 	.ndo_get_port_parent_id	= nfp_port_get_port_parent_id,
+	.ndo_get_devlink	= nfp_devlink_get_devlink,
 };
 
 void