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-rw-r--r--include/net/dsa.h65
1 files changed, 63 insertions, 2 deletions
diff --git a/include/net/dsa.h b/include/net/dsa.h
index 10dceccd9ce8..38961ef91d3d 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -164,6 +164,14 @@ struct dsa_mall_tc_entry {
struct dsa_port {
+ /* A CPU port is physically connected to a master device.
+ * A user port exposed to userspace has a slave device.
+ */
+ union {
+ struct net_device *master;
+ struct net_device *slave;
+ };
+
/* CPU port tagging operations used by master or slave devices */
const struct dsa_device_ops *tag_ops;
@@ -176,7 +184,6 @@ struct dsa_port {
unsigned int index;
const char *name;
struct dsa_port *cpu_dp;
- struct net_device *netdev;
struct device_node *dn;
unsigned int ageing_time;
u8 stp_state;
@@ -262,6 +269,11 @@ static inline bool dsa_is_normal_port(struct dsa_switch *ds, int p)
return !dsa_is_cpu_port(ds, p) && !dsa_is_dsa_port(ds, p);
}
+static inline const struct dsa_port *dsa_to_port(struct dsa_switch *ds, int p)
+{
+ return &ds->ports[p];
+}
+
static inline u8 dsa_upstream_port(struct dsa_switch *ds)
{
struct dsa_switch_tree *dst = ds->dst;
@@ -291,7 +303,6 @@ struct dsa_switch_ops {
enum dsa_tag_protocol (*get_tag_protocol)(struct dsa_switch *ds);
int (*setup)(struct dsa_switch *ds);
- int (*set_addr)(struct dsa_switch *ds, u8 *addr);
u32 (*get_phy_flags)(struct dsa_switch *ds, int port);
/*
@@ -471,4 +482,54 @@ static inline int dsa_switch_resume(struct dsa_switch *ds)
}
#endif /* CONFIG_PM_SLEEP */
+enum dsa_notifier_type {
+ DSA_PORT_REGISTER,
+ DSA_PORT_UNREGISTER,
+};
+
+struct dsa_notifier_info {
+ struct net_device *dev;
+};
+
+struct dsa_notifier_register_info {
+ struct dsa_notifier_info info; /* must be first */
+ struct net_device *master;
+ unsigned int port_number;
+ unsigned int switch_number;
+};
+
+static inline struct net_device *
+dsa_notifier_info_to_dev(const struct dsa_notifier_info *info)
+{
+ return info->dev;
+}
+
+#if IS_ENABLED(CONFIG_NET_DSA)
+int register_dsa_notifier(struct notifier_block *nb);
+int unregister_dsa_notifier(struct notifier_block *nb);
+int call_dsa_notifiers(unsigned long val, struct net_device *dev,
+ struct dsa_notifier_info *info);
+#else
+static inline int register_dsa_notifier(struct notifier_block *nb)
+{
+ return 0;
+}
+
+static inline int unregister_dsa_notifier(struct notifier_block *nb)
+{
+ return 0;
+}
+
+static inline int call_dsa_notifiers(unsigned long val, struct net_device *dev,
+ struct dsa_notifier_info *info)
+{
+ return NOTIFY_DONE;
+}
+#endif
+
+/* Broadcom tag specific helpers to insert and extract queue/port number */
+#define BRCM_TAG_SET_PORT_QUEUE(p, q) ((p) << 8 | q)
+#define BRCM_TAG_GET_PORT(v) ((v) >> 8)
+#define BRCM_TAG_GET_QUEUE(v) ((v) & 0xff)
+
#endif