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