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-rw-r--r--include/net/mctpdevice.h56
1 files changed, 56 insertions, 0 deletions
diff --git a/include/net/mctpdevice.h b/include/net/mctpdevice.h
new file mode 100644
index 000000000..5c0d04b5c
--- /dev/null
+++ b/include/net/mctpdevice.h
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Management Component Transport Protocol (MCTP) - device
+ * definitions.
+ *
+ * Copyright (c) 2021 Code Construct
+ * Copyright (c) 2021 Google
+ */
+
+#ifndef __NET_MCTPDEVICE_H
+#define __NET_MCTPDEVICE_H
+
+#include <linux/list.h>
+#include <linux/types.h>
+#include <linux/refcount.h>
+
+struct mctp_sk_key;
+
+struct mctp_dev {
+ struct net_device *dev;
+
+ refcount_t refs;
+
+ unsigned int net;
+
+ const struct mctp_netdev_ops *ops;
+
+ /* Only modified under RTNL. Reads have addrs_lock held */
+ u8 *addrs;
+ size_t num_addrs;
+ spinlock_t addrs_lock;
+
+ struct rcu_head rcu;
+};
+
+struct mctp_netdev_ops {
+ void (*release_flow)(struct mctp_dev *dev,
+ struct mctp_sk_key *key);
+};
+
+#define MCTP_INITIAL_DEFAULT_NET 1
+
+struct mctp_dev *mctp_dev_get_rtnl(const struct net_device *dev);
+struct mctp_dev *__mctp_dev_get(const struct net_device *dev);
+
+int mctp_register_netdev(struct net_device *dev,
+ const struct mctp_netdev_ops *ops);
+void mctp_unregister_netdev(struct net_device *dev);
+
+void mctp_dev_hold(struct mctp_dev *mdev);
+void mctp_dev_put(struct mctp_dev *mdev);
+
+void mctp_dev_set_key(struct mctp_dev *dev, struct mctp_sk_key *key);
+void mctp_dev_release_key(struct mctp_dev *dev, struct mctp_sk_key *key);
+
+#endif /* __NET_MCTPDEVICE_H */