1 /*
2 * Copyright (c) 2005 Voltaire Inc. All rights reserved.
3 * Copyright (c) 2002-2005, Network Appliance, Inc. All rights reserved.
4 * Copyright (c) 1999-2005, Mellanox Technologies, Inc. All rights reserved.
5 * Copyright (c) 2005-2006 Intel Corporation. All rights reserved.
6 *
7 * This software is available to you under a choice of one of two
8 * licenses. You may choose to be licensed under the terms of the GNU
9 * General Public License (GPL) Version 2, available from the file
10 * COPYING in the main directory of this source tree, or the
11 * OpenIB.org BSD license below:
12 *
13 * Redistribution and use in source and binary forms, with or
14 * without modification, are permitted provided that the following
15 * conditions are met:
16 *
17 * - Redistributions of source code must retain the above
18 * copyright notice, this list of conditions and the following
19 * disclaimer.
20 *
21 * - Redistributions in binary form must reproduce the above
22 * copyright notice, this list of conditions and the following
23 * disclaimer in the documentation and/or other materials
24 * provided with the distribution.
25 *
26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
27 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
28 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
29 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
30 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
31 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
32 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
33 * SOFTWARE.
34 */
35
36 #ifndef _CMA_PRIV_H
37 #define _CMA_PRIV_H
38
39 enum rdma_cm_state {
40 RDMA_CM_IDLE,
41 RDMA_CM_ADDR_QUERY,
42 RDMA_CM_ADDR_RESOLVED,
43 RDMA_CM_ROUTE_QUERY,
44 RDMA_CM_ROUTE_RESOLVED,
45 RDMA_CM_CONNECT,
46 RDMA_CM_DISCONNECT,
47 RDMA_CM_ADDR_BOUND,
48 RDMA_CM_LISTEN,
49 RDMA_CM_DEVICE_REMOVAL,
50 RDMA_CM_DESTROYING
51 };
52
53 struct rdma_id_private {
54 struct rdma_cm_id id;
55
56 struct rdma_bind_list *bind_list;
57 struct hlist_node node;
58 struct list_head list; /* listen_any_list or cma_device.list */
59 struct list_head listen_list; /* per device listens */
60 struct cma_device *cma_dev;
61 struct list_head mc_list;
62
63 int internal_id;
64 enum rdma_cm_state state;
65 spinlock_t lock;
66 struct mutex qp_mutex;
67
68 struct completion comp;
69 refcount_t refcount;
70 struct mutex handler_mutex;
71
72 int backlog;
73 int timeout_ms;
74 struct ib_sa_query *query;
75 int query_id;
76 union {
77 struct ib_cm_id *ib;
78 struct iw_cm_id *iw;
79 } cm_id;
80
81 u32 seq_num;
82 u32 qkey;
83 u32 qp_num;
84 u32 options;
85 u8 srq;
86 u8 tos;
87 u8 tos_set:1;
88 u8 timeout_set:1;
89 u8 reuseaddr;
90 u8 afonly;
91 u8 timeout;
92 u8 used_resolve_ip;
93 enum ib_gid_type gid_type;
94
95 /*
96 * Internal to RDMA/core, don't use in the drivers
97 */
98 struct rdma_restrack_entry res;
99 struct rdma_ucm_ece ece;
100 };
101
102 #if IS_ENABLED(CONFIG_INFINIBAND_ADDR_TRANS_CONFIGFS)
103 int cma_configfs_init(void);
104 void cma_configfs_exit(void);
105 #else
cma_configfs_init(void)106 static inline int cma_configfs_init(void)
107 {
108 return 0;
109 }
110
cma_configfs_exit(void)111 static inline void cma_configfs_exit(void)
112 {
113 }
114 #endif
115
116 void cma_dev_get(struct cma_device *dev);
117 void cma_dev_put(struct cma_device *dev);
118 typedef bool (*cma_device_filter)(struct ib_device *, void *);
119 struct cma_device *cma_enum_devices_by_ibdev(cma_device_filter filter,
120 void *cookie);
121 int cma_get_default_gid_type(struct cma_device *dev, unsigned int port);
122 int cma_set_default_gid_type(struct cma_device *dev, unsigned int port,
123 enum ib_gid_type default_gid_type);
124 int cma_get_default_roce_tos(struct cma_device *dev, unsigned int port);
125 int cma_set_default_roce_tos(struct cma_device *dev, unsigned int port,
126 u8 default_roce_tos);
127 struct ib_device *cma_get_ib_dev(struct cma_device *dev);
128
129 #endif /* _CMA_PRIV_H */
130