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 RDMA_CM_ADDRINFO_QUERY,
52 RDMA_CM_ADDRINFO_RESOLVED
53 };
54
55 struct rdma_id_private {
56 struct rdma_cm_id id;
57
58 struct rdma_bind_list *bind_list;
59 struct hlist_node node;
60 union {
61 struct list_head device_item; /* On cma_device->id_list */
62 struct list_head listen_any_item; /* On listen_any_list */
63 };
64 union {
65 /* On rdma_id_private->listen_list */
66 struct list_head listen_item;
67 struct list_head listen_list;
68 };
69 struct list_head id_list_entry;
70 struct cma_device *cma_dev;
71 struct list_head mc_list;
72
73 int internal_id;
74 enum rdma_cm_state state;
75 u8 restricted_node_type;
76 spinlock_t lock;
77 struct mutex qp_mutex;
78
79 struct completion comp;
80 refcount_t refcount;
81 struct mutex handler_mutex;
82
83 int backlog;
84 int timeout_ms;
85 struct ib_sa_query *query;
86 int query_id;
87 union {
88 struct ib_cm_id *ib;
89 struct iw_cm_id *iw;
90 } cm_id;
91
92 u32 seq_num;
93 u32 qkey;
94 u32 qp_num;
95 u32 options;
96 u8 srq;
97 u8 tos;
98 u8 tos_set:1;
99 u8 timeout_set:1;
100 u8 min_rnr_timer_set:1;
101 u8 reuseaddr;
102 u8 afonly;
103 u8 timeout;
104 u8 min_rnr_timer;
105 u8 used_resolve_ip;
106 enum ib_gid_type gid_type;
107
108 /*
109 * Internal to RDMA/core, don't use in the drivers
110 */
111 struct rdma_restrack_entry res;
112 struct rdma_ucm_ece ece;
113 };
114
115 #if IS_ENABLED(CONFIG_INFINIBAND_ADDR_TRANS_CONFIGFS)
116 int cma_configfs_init(void);
117 void cma_configfs_exit(void);
118 #else
cma_configfs_init(void)119 static inline int cma_configfs_init(void)
120 {
121 return 0;
122 }
123
cma_configfs_exit(void)124 static inline void cma_configfs_exit(void)
125 {
126 }
127 #endif
128
129 void cma_dev_get(struct cma_device *dev);
130 void cma_dev_put(struct cma_device *dev);
131 typedef bool (*cma_device_filter)(struct ib_device *, void *);
132 struct cma_device *cma_enum_devices_by_ibdev(cma_device_filter filter,
133 void *cookie);
134 int cma_get_default_gid_type(struct cma_device *dev, u32 port);
135 int cma_set_default_gid_type(struct cma_device *dev, u32 port,
136 enum ib_gid_type default_gid_type);
137 int cma_get_default_roce_tos(struct cma_device *dev, u32 port);
138 int cma_set_default_roce_tos(struct cma_device *dev, u32 port,
139 u8 default_roce_tos);
140 struct ib_device *cma_get_ib_dev(struct cma_device *dev);
141
142 #endif /* _CMA_PRIV_H */
143