cma_priv.h

  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 */