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
39enum 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
55struct 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 spinlock_t lock;
76 struct mutex qp_mutex;
77
78 struct completion comp;
79 refcount_t refcount;
80 struct mutex handler_mutex;
81
82 int backlog;
83 int timeout_ms;
84 struct ib_sa_query *query;
85 int query_id;
86 union {
87 struct ib_cm_id *ib;
88 struct iw_cm_id *iw;
89 } cm_id;
90
91 u32 seq_num;
92 u32 qkey;
93 u32 qp_num;
94 u32 options;
95 u8 srq;
96 u8 tos;
97 u8 tos_set:1;
98 u8 timeout_set:1;
99 u8 min_rnr_timer_set:1;
100 u8 reuseaddr;
101 u8 afonly;
102 u8 timeout;
103 u8 min_rnr_timer;
104 u8 used_resolve_ip;
105 enum ib_gid_type gid_type;
106
107 /*
108 * Internal to RDMA/core, don't use in the drivers
109 */
110 struct rdma_restrack_entry res;
111 struct rdma_ucm_ece ece;
112};
113
114#if IS_ENABLED(CONFIG_INFINIBAND_ADDR_TRANS_CONFIGFS)
115int cma_configfs_init(void);
116void cma_configfs_exit(void);
117#else
118static inline int cma_configfs_init(void)
119{
120 return 0;
121}
122
123static inline void cma_configfs_exit(void)
124{
125}
126#endif
127
128void cma_dev_get(struct cma_device *dev);
129void cma_dev_put(struct cma_device *dev);
130typedef bool (*cma_device_filter)(struct ib_device *, void *);
131struct cma_device *cma_enum_devices_by_ibdev(cma_device_filter filter,
132 void *cookie);
133int cma_get_default_gid_type(struct cma_device *dev, u32 port);
134int cma_set_default_gid_type(struct cma_device *dev, u32 port,
135 enum ib_gid_type default_gid_type);
136int cma_get_default_roce_tos(struct cma_device *dev, u32 port);
137int cma_set_default_roce_tos(struct cma_device *dev, u32 port,
138 u8 default_roce_tos);
139struct ib_device *cma_get_ib_dev(struct cma_device *dev);
140
141#endif /* _CMA_PRIV_H */
142

source code of linux/drivers/infiniband/core/cma_priv.h