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-rw-r--r--include/linux/netdevice.h5
-rw-r--r--include/net/switchdev.h7
-rw-r--r--net/bridge/br_stp.c7
-rw-r--r--net/switchdev/switchdev.c19
4 files changed, 38 insertions, 0 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 3603f31e78f3..29c92ee9ed56 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1024,6 +1024,9 @@ typedef u16 (*select_queue_fallback_t)(struct net_device *dev,
* Called to get an ID of the switch chip this port is part of.
* If driver implements this, it indicates that it represents a port
* of a switch chip.
+ * int (*ndo_switch_port_stp_update)(struct net_device *dev, u8 state);
+ * Called to notify switch device port of bridge port STP
+ * state change.
*/
struct net_device_ops {
int (*ndo_init)(struct net_device *dev);
@@ -1180,6 +1183,8 @@ struct net_device_ops {
#ifdef CONFIG_NET_SWITCHDEV
int (*ndo_switch_parent_id_get)(struct net_device *dev,
struct netdev_phys_item_id *psid);
+ int (*ndo_switch_port_stp_update)(struct net_device *dev,
+ u8 state);
#endif
};
diff --git a/include/net/switchdev.h b/include/net/switchdev.h
index 7a52360a1446..8a6d1641fd9b 100644
--- a/include/net/switchdev.h
+++ b/include/net/switchdev.h
@@ -16,6 +16,7 @@
int netdev_switch_parent_id_get(struct net_device *dev,
struct netdev_phys_item_id *psid);
+int netdev_switch_port_stp_update(struct net_device *dev, u8 state);
#else
@@ -25,6 +26,12 @@ static inline int netdev_switch_parent_id_get(struct net_device *dev,
return -EOPNOTSUPP;
}
+static inline int netdev_switch_port_stp_update(struct net_device *dev,
+ u8 state)
+{
+ return -EOPNOTSUPP;
+}
+
#endif
#endif /* _LINUX_SWITCHDEV_H_ */
diff --git a/net/bridge/br_stp.c b/net/bridge/br_stp.c
index 2b047bcf42a4..fb3ebe615513 100644
--- a/net/bridge/br_stp.c
+++ b/net/bridge/br_stp.c
@@ -12,6 +12,7 @@
*/
#include <linux/kernel.h>
#include <linux/rculist.h>
+#include <net/switchdev.h>
#include "br_private.h"
#include "br_private_stp.h"
@@ -38,7 +39,13 @@ void br_log_state(const struct net_bridge_port *p)
void br_set_state(struct net_bridge_port *p, unsigned int state)
{
+ int err;
+
p->state = state;
+ err = netdev_switch_port_stp_update(p->dev, state);
+ if (err && err != -EOPNOTSUPP)
+ br_warn(p->br, "error setting offload STP state on port %u(%s)\n",
+ (unsigned int) p->port_no, p->dev->name);
}
/* called under bridge lock */
diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c
index 66973deaae56..d162b21b14bd 100644
--- a/net/switchdev/switchdev.c
+++ b/net/switchdev/switchdev.c
@@ -31,3 +31,22 @@ int netdev_switch_parent_id_get(struct net_device *dev,
return ops->ndo_switch_parent_id_get(dev, psid);
}
EXPORT_SYMBOL(netdev_switch_parent_id_get);
+
+/**
+ * netdev_switch_port_stp_update - Notify switch device port of STP
+ * state change
+ * @dev: port device
+ * @state: port STP state
+ *
+ * Notify switch device port of bridge port STP state change.
+ */
+int netdev_switch_port_stp_update(struct net_device *dev, u8 state)
+{
+ const struct net_device_ops *ops = dev->netdev_ops;
+
+ if (!ops->ndo_switch_port_stp_update)
+ return -EOPNOTSUPP;
+ WARN_ON(!ops->ndo_switch_parent_id_get);
+ return ops->ndo_switch_port_stp_update(dev, state);
+}
+EXPORT_SYMBOL(netdev_switch_port_stp_update);