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 */
42void 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