1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * Copyright (C) 2016 Parav Pandit <pandit.parav@gmail.com>
4 */
5
6 #ifndef _CGROUP_RDMA_H
7 #define _CGROUP_RDMA_H
8
9 #include <linux/cgroup.h>
10
11 enum rdmacg_resource_type {
12 RDMACG_RESOURCE_HCA_HANDLE,
13 RDMACG_RESOURCE_HCA_OBJECT,
14 RDMACG_RESOURCE_MAX,
15 };
16
17 #ifdef CONFIG_CGROUP_RDMA
18
19 struct rdma_cgroup {
20 struct cgroup_subsys_state css;
21
22 /*
23 * head to keep track of all resource pools
24 * that belongs to this cgroup.
25 */
26 struct list_head rpools;
27 };
28
29 struct rdmacg_device {
30 struct list_head dev_node;
31 struct list_head rpools;
32 char *name;
33 };
34
35 /*
36 * APIs for RDMA/IB stack to publish when a device wants to
37 * participate in resource accounting
38 */
39 void rdmacg_register_device(struct rdmacg_device *device);
40 void rdmacg_unregister_device(struct rdmacg_device *device);
41
42 /* APIs for RDMA/IB stack to charge/uncharge pool specific resources */
43 int rdmacg_try_charge(struct rdma_cgroup **rdmacg,
44 struct rdmacg_device *device,
45 enum rdmacg_resource_type index);
46 void rdmacg_uncharge(struct rdma_cgroup *cg,
47 struct rdmacg_device *device,
48 enum rdmacg_resource_type index);
49 #endif /* CONFIG_CGROUP_RDMA */
50 #endif /* _CGROUP_RDMA_H */
51
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