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-rw-r--r--include/net/ncsi.h52
-rw-r--r--include/uapi/linux/if_ether.h1
2 files changed, 53 insertions, 0 deletions
diff --git a/include/net/ncsi.h b/include/net/ncsi.h
new file mode 100644
index 000000000000..1dbf42f79750
--- /dev/null
+++ b/include/net/ncsi.h
@@ -0,0 +1,52 @@
+#ifndef __NET_NCSI_H
+#define __NET_NCSI_H
+
+/*
+ * The NCSI device states seen from external. More NCSI device states are
+ * only visible internally (in net/ncsi/internal.h). When the NCSI device
+ * is registered, it's in ncsi_dev_state_registered state. The state
+ * ncsi_dev_state_start is used to drive to choose active package and
+ * channel. After that, its state is changed to ncsi_dev_state_functional.
+ *
+ * The state ncsi_dev_state_stop helps to shut down the currently active
+ * package and channel while ncsi_dev_state_config helps to reconfigure
+ * them.
+ */
+enum {
+ ncsi_dev_state_registered = 0x0000,
+ ncsi_dev_state_functional = 0x0100,
+ ncsi_dev_state_probe = 0x0200,
+ ncsi_dev_state_config = 0x0300,
+ ncsi_dev_state_suspend = 0x0400,
+};
+
+struct ncsi_dev {
+ int state;
+ int link_up;
+ struct net_device *dev;
+ void (*handler)(struct ncsi_dev *ndev);
+};
+
+#ifdef CONFIG_NET_NCSI
+struct ncsi_dev *ncsi_register_dev(struct net_device *dev,
+ void (*notifier)(struct ncsi_dev *nd));
+int ncsi_start_dev(struct ncsi_dev *nd);
+void ncsi_unregister_dev(struct ncsi_dev *nd);
+#else /* !CONFIG_NET_NCSI */
+static inline struct ncsi_dev *ncsi_register_dev(struct net_device *dev,
+ void (*notifier)(struct ncsi_dev *nd))
+{
+ return NULL;
+}
+
+static inline int ncsi_start_dev(struct ncsi_dev *nd)
+{
+ return -ENOTTY;
+}
+
+static inline void ncsi_unregister_dev(struct ncsi_dev *nd)
+{
+}
+#endif /* CONFIG_NET_NCSI */
+
+#endif /* __NET_NCSI_H */
diff --git a/include/uapi/linux/if_ether.h b/include/uapi/linux/if_ether.h
index cec849a239f6..117d02e0fc31 100644
--- a/include/uapi/linux/if_ether.h
+++ b/include/uapi/linux/if_ether.h
@@ -87,6 +87,7 @@
#define ETH_P_8021AH 0x88E7 /* 802.1ah Backbone Service Tag */
#define ETH_P_MVRP 0x88F5 /* 802.1Q MVRP */
#define ETH_P_1588 0x88F7 /* IEEE 1588 Timesync */
+#define ETH_P_NCSI 0x88F8 /* NCSI protocol */
#define ETH_P_PRP 0x88FB /* IEC 62439-3 PRP/HSRv0 */
#define ETH_P_FCOE 0x8906 /* Fibre Channel over Ethernet */
#define ETH_P_TDLS 0x890D /* TDLS */