| Parav Pandit | 39d3e75 | 2017-01-10 00:02:13 +0000 | [diff] [blame] | 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 | |
| 14 | enum 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 | |
| 22 | struct 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 | |
| 32 | struct 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 | */ |
| 42 | int rdmacg_register_device(struct rdmacg_device *device); |
| 43 | void rdmacg_unregister_device(struct rdmacg_device *device); |
| 44 | |
| 45 | /* APIs for RDMA/IB stack to charge/uncharge pool specific resources */ |
| 46 | int rdmacg_try_charge(struct rdma_cgroup **rdmacg, |
| 47 | struct rdmacg_device *device, |
| 48 | enum rdmacg_resource_type index); |
| 49 | void 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 */ |