LXR linux/include/linux/cgroup

   1/*
   2 * Copyright (C) 2016 Parav Pandit <pandit.parav@gmail.com>
   3 *
   4 * This file is subject to the terms and conditions of version 2 of the GNU
   5 * General Public License. See the file COPYING in the main directory of the
   6 * Linux distribution for more details.
   7 */
   8
   9#ifndef _CGROUP_RDMA_H
  10#define _CGROUP_RDMA_H
  11
  12#include <linux/cgroup.h>
  13
  14enum rdmacg_resource_type {
  15        RDMACG_RESOURCE_HCA_HANDLE,
  16        RDMACG_RESOURCE_HCA_OBJECT,
  17        RDMACG_RESOURCE_MAX,
  18};
  19
  20#ifdef CONFIG_CGROUP_RDMA
  21
  22struct rdma_cgroup {
  23        struct cgroup_subsys_state      css;
  24
  25        /*
  26         * head to keep track of all resource pools
  27         * that belongs to this cgroup.
  28         */
  29        struct list_head                rpools;
  30};
  31
  32struct rdmacg_device {
  33        struct list_head        dev_node;
  34        struct list_head        rpools;
  35        char                    *name;
  36};
  37
  38/*
  39 * APIs for RDMA/IB stack to publish when a device wants to
  40 * participate in resource accounting
  41 */
  42int rdmacg_register_device(struct rdmacg_device *device);
  43void rdmacg_unregister_device(struct rdmacg_device *device);
  44
  45/* APIs for RDMA/IB stack to charge/uncharge pool specific resources */
  46int rdmacg_try_charge(struct rdma_cgroup **rdmacg,
  47                      struct rdmacg_device *device,
  48                      enum rdmacg_resource_type index);
  49void rdmacg_uncharge(struct rdma_cgroup *cg,
  50                     struct rdmacg_device *device,
  51                     enum rdmacg_resource_type index);
  52#endif  /* CONFIG_CGROUP_RDMA */
  53#endif  /* _CGROUP_RDMA_H */
  54