From 47ff6154fd234eb9efc353f8b71bcc669ddbde93 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Thu, 2 Jul 2020 21:57:00 -0700
Subject: [PATCH] net: bcmgenet: Allow changing carrier from user-space
The GENET driver interfaces with internal MoCA interface as well as
external MoCA chips like the BCM6802/6803 through a fixed link
interface. It is desirable for the mocad user-space daemon to be able to
control the carrier state based upon out of band messages that it
receives from the MoCA chip.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/ethernet/broadcom/genet/bcmgenet.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
index af924a8b885fd..ee84a26bd8f38 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -3647,6 +3647,22 @@ static struct net_device_stats *bcmgenet_get_stats(struct net_device *dev)
return &dev->stats;
}
+static int bcmgenet_change_carrier(struct net_device *dev, bool new_carrier)
+{
+ struct bcmgenet_priv *priv = netdev_priv(dev);
+
+ if (!dev->phydev || !phy_is_pseudo_fixed_link(dev->phydev) ||
+ priv->phy_interface != PHY_INTERFACE_MODE_MOCA)
+ return -EOPNOTSUPP;
+
+ if (new_carrier)
+ netif_carrier_on(dev);
+ else
+ netif_carrier_off(dev);
+
+ return 0;
+}
+
static const struct net_device_ops bcmgenet_netdev_ops = {
.ndo_open = bcmgenet_open,
.ndo_stop = bcmgenet_close,
@@ -3660,6 +3676,7 @@ static const struct net_device_ops bcmgenet_netdev_ops = {
.ndo_poll_controller = bcmgenet_poll_controller,
#endif
.ndo_get_stats = bcmgenet_get_stats,
+ .ndo_change_carrier = bcmgenet_change_carrier,
};
/* Array of GENET hardware parameters/characteristics */