[PATCH net-next v2 2/2] dpaa2-eth: mark DPNIs without a DPMAC as virtual devlink ports

From: Vincent Jardin <vjardin@free.fr>

A DPNI whose endpoint is not a DPMAC has no physical connector: it
may have no endpoint at all, or be connected to another DPNI or to a
DPSW port. Until now, such a DPNI was still registered as a physical
devlink port with number 0, so userspace saw a physical port that does
not exist.

Register these DPNIs as virtual devlink ports instead. A virtual port
has no phys_port_name, so only the DPNIs that serve a DPMAC at probe
time report one, "p<dpmac id>", and those names do not collide.

Signed-off-by: Vincent Jardin <vjardin@free.fr>
---
 drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-devlink.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-devlink.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-devlink.c
index 4c0a04c2d458..6defc00199bf 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-devlink.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-devlink.c

@@ -233,7 +233,10 @@ int dpaa2_eth_dl_port_add(struct dpaa2_eth_priv *priv)
 	priv->dl_port_valid = true;
 	mutex_unlock(&priv->mac_lock);
 
-	attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL;
+	if (port_number)
+		attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL;
+	else
+		attrs.flavour = DEVLINK_PORT_FLAVOUR_VIRTUAL;
 	attrs.phys.port_number = port_number;
 	devlink_port_attrs_set(devlink_port, &attrs);
 	err = devlink_port_register(priv->devlink, devlink_port, 0);

-- 
2.43.0