[PATCH net-next v3 06/13] net: mvpp2: improve the link management function

From: Antoine Tenart
Date: Mon Aug 28 2017 - 11:00:03 EST


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