net: dsa: allow drivers to do link adjustment

Whenever libphy determines that the link status of a given PHY/port has
changed, allow to call into the switch driver link adjustment callback
so proper actions can be taken care of by the switch driver upon link
notification.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 0 deletions

diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 241c2a1684cb..398d0663d3dd 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -333,6 +333,7 @@ static const struct dsa_device_ops notag_netdev_ops = {
 static void dsa_slave_adjust_link(struct net_device *dev)
 {
         struct dsa_slave_priv *p = netdev_priv(dev);
+        struct dsa_switch *ds = p->parent;
         unsigned int status_changed = 0;
 
         if (p->old_link != p->phy->link) {
@@ -350,6 +351,9 @@ static void dsa_slave_adjust_link(struct net_device *dev)
                 p->old_pause = p->phy->pause;
         }
 
+        if (ds->drv->adjust_link && status_changed)
+                ds->drv->adjust_link(ds, p->port, p->phy);
+
         if (status_changed)
                 phy_print_status(p->phy);
 }