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	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			min_rnr_timer_set:1;
 90	u8			reuseaddr;
 91	u8			afonly;
 92	u8			timeout;
 93	u8			min_rnr_timer;
 94	u8 used_resolve_ip;
 95	enum ib_gid_type	gid_type;
 96
 97	/*
 98	 * Internal to RDMA/core, don't use in the drivers
 99	 */
100	struct rdma_restrack_entry     res;
101	struct rdma_ucm_ece ece;
102};
103
104#if IS_ENABLED(CONFIG_INFINIBAND_ADDR_TRANS_CONFIGFS)
105int cma_configfs_init(void);
106void cma_configfs_exit(void);
107#else
108static inline int cma_configfs_init(void)
109{
110	return 0;
111}
112
113static inline void cma_configfs_exit(void)
114{
115}
116#endif
117
118void cma_dev_get(struct cma_device *dev);
119void cma_dev_put(struct cma_device *dev);
120typedef bool (*cma_device_filter)(struct ib_device *, void *);
121struct cma_device *cma_enum_devices_by_ibdev(cma_device_filter filter,
122					     void *cookie);
123int cma_get_default_gid_type(struct cma_device *dev, u32 port);
124int cma_set_default_gid_type(struct cma_device *dev, u32 port,
125			     enum ib_gid_type default_gid_type);
126int cma_get_default_roce_tos(struct cma_device *dev, u32 port);
127int cma_set_default_roce_tos(struct cma_device *dev, u32 port,
128			     u8 default_roce_tos);
129struct ib_device *cma_get_ib_dev(struct cma_device *dev);
130
131#endif /* _CMA_PRIV_H */