drivers/infiniband/core/restrack.h

   1 /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
   2 /*
   3  * Copyright (c) 2017-2019 Mellanox Technologies. All rights reserved.
   4  */
   5
   6 #ifndef _RDMA_CORE_RESTRACK_H_
   7 #define _RDMA_CORE_RESTRACK_H_
   8
   9 #include <linux/mutex.h>
  10
  11 /**
  12  * struct rdma_restrack_root - main resource tracking management
  13  * entity, per-device
  14  */
  15 struct rdma_restrack_root {
  16         /**
  17          * @xa: Array of XArray structure to hold restrack entries.
  18          */
  19         struct xarray xa;
  20         /**
  21          * @next_id: Next ID to support cyclic allocation
  22          */
  23         u32 next_id;
  24 };
  25
  26 int rdma_restrack_init(struct ib_device *dev);
  27 void rdma_restrack_clean(struct ib_device *dev);
  28 void rdma_restrack_add(struct rdma_restrack_entry *res);
  29 void rdma_restrack_del(struct rdma_restrack_entry *res);
  30 void rdma_restrack_new(struct rdma_restrack_entry *res,
  31                        enum rdma_restrack_type type);
  32 void rdma_restrack_set_name(struct rdma_restrack_entry *res,
  33                             const char *caller);
  34 void rdma_restrack_parent_name(struct rdma_restrack_entry *dst,
  35                                const struct rdma_restrack_entry *parent);
  36 #endif /* _RDMA_CORE_RESTRACK_H_ */