bridge: mrp: Add br_mrp_in_port_open function

This function notifies the userspace when the node lost the continuity
of MRP_InTest frames.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/bridge/br_mrp_netlink.c b/net/bridge/br_mrp_netlink.c
index acce300..4bf7aae 100644 (file)
--- a/net/bridge/br_mrp_netlink.c
+++ b/net/bridge/br_mrp_netlink.c
@@ -389,3 +389,25 @@ int br_mrp_ring_port_open(struct net_device *dev, u8 loc)
 out:
        return err;
 }
+
+int br_mrp_in_port_open(struct net_device *dev, u8 loc)
+{
+       struct net_bridge_port *p;
+       int err = 0;
+
+       p = br_port_get_rcu(dev);
+       if (!p) {
+               err = -EINVAL;
+               goto out;
+       }
+
+       if (loc)
+               p->flags |= BR_MRP_LOST_IN_CONT;
+       else
+               p->flags &= ~BR_MRP_LOST_IN_CONT;
+
+       br_ifinfo_notify(RTM_NEWLINK, NULL, p);
+
+out:
+       return err;
+}

diff --git a/net/bridge/br_private_mrp.h b/net/bridge/br_private_mrp.h
index e93c8f9..23da2f9 100644 (file)
--- a/net/bridge/br_private_mrp.h
+++ b/net/bridge/br_private_mrp.h
@@ -75,5 +75,6 @@ int br_mrp_port_switchdev_set_role(struct net_bridge_port *p,
 
 /* br_mrp_netlink.c  */
 int br_mrp_ring_port_open(struct net_device *dev, u8 loc);
+int br_mrp_in_port_open(struct net_device *dev, u8 loc);
 
 #endif /* _BR_PRIVATE_MRP_H */