summaryrefslogtreecommitdiffstats
path: root/drivers/infiniband/core/restrack.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/infiniband/core/restrack.h')
-rw-r--r--drivers/infiniband/core/restrack.h28
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/infiniband/core/restrack.h b/drivers/infiniband/core/restrack.h
new file mode 100644
index 000000000000..09a1fbdf578e
--- /dev/null
+++ b/drivers/infiniband/core/restrack.h
@@ -0,0 +1,28 @@
+/* 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);
+#endif /* _RDMA_CORE_RESTRACK_H_ */