From 47ff6154fd234eb9efc353f8b71bcc669ddbde93 Mon Sep 17 00:00:00 2001 From: Florian Fainelli 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 Signed-off-by: David S. Miller --- 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 af924a8b885f..ee84a26bd8f3 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 */ -- 2.11.0