[PATCH net-next v4 06/13] net: mvpp2: improve the link management function

[Antoine Tenart]

When the link status changes, the phylib calls the link_event function
in the mvpp2 driver. Before this patch only the egress/ingress transmit
was enabled/disabled. This patch adds more functionality to the link
status management code by enabling/disabling the port per-cpu
interrupts, and the port itself. The queues are now stopped as well, and
the netif carrier helpers are called.

Signed-off-by: Antoine Tenart <antoine.tenart@xxxxxxxxxxxxxxxxxx>
---
 drivers/net/ethernet/marvell/mvpp2.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/net/ethernet/marvell/mvpp2.c b/drivers/net/ethernet/marvell/mvpp2.c
index 9c0c81e68d55..09cad32734f3 100644
--- a/drivers/net/ethernet/marvell/mvpp2.c
+++ b/drivers/net/ethernet/marvell/mvpp2.c
@@ -5777,14 +5777,25 @@ static void mvpp2_link_event(struct net_device *dev)
 			val |= (MVPP2_GMAC_FORCE_LINK_PASS |
 				MVPP2_GMAC_FORCE_LINK_DOWN);
 			writel(val, port->base + MVPP2_GMAC_AUTONEG_CONFIG);
+
+			mvpp2_interrupts_enable(port);
+			mvpp2_port_enable(port);
+
 			mvpp2_egress_enable(port);
 			mvpp2_ingress_enable(port);
+			netif_carrier_on(dev);
+			netif_tx_wake_all_queues(dev);
 		} else {
 			port->duplex = -1;
 			port->speed = 0;
 
+			netif_tx_stop_all_queues(dev);
+			netif_carrier_off(dev);
 			mvpp2_ingress_disable(port);
 			mvpp2_egress_disable(port);
+
+			mvpp2_port_disable(port);
+			mvpp2_interrupts_disable(port);
 		}
 
 		phy_print_status(phydev);
-- 
2.13.5