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-rw-r--r--drivers/infiniband/core/restrack.h36
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/infiniband/core/restrack.h b/drivers/infiniband/core/restrack.h
new file mode 100644
index 000000000..6a04fc41f
--- /dev/null
+++ b/drivers/infiniband/core/restrack.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
+/*
+ * Copyright (c) 2017-2019 Mellanox Technologies. All rights reserved.
+ */
+
+#ifndef _RDMA_CORE_RESTRACK_H_
+#define _RDMA_CORE_RESTRACK_H_
+
+#include <linux/mutex.h>
+
+/**
+ * struct rdma_restrack_root - main resource tracking management
+ * entity, per-device
+ */
+struct rdma_restrack_root {
+ /**
+ * @xa: Array of XArray structure to hold restrack entries.
+ */
+ struct xarray xa;
+ /**
+ * @next_id: Next ID to support cyclic allocation
+ */
+ u32 next_id;
+};
+
+int rdma_restrack_init(struct ib_device *dev);
+void rdma_restrack_clean(struct ib_device *dev);
+void rdma_restrack_add(struct rdma_restrack_entry *res);
+void rdma_restrack_del(struct rdma_restrack_entry *res);
+void rdma_restrack_new(struct rdma_restrack_entry *res,
+ enum rdma_restrack_type type);
+void rdma_restrack_set_name(struct rdma_restrack_entry *res,
+ const char *caller);
+void rdma_restrack_parent_name(struct rdma_restrack_entry *dst,
+ const struct rdma_restrack_entry *parent);
+#endif /* _RDMA_CORE_RESTRACK_H_ */