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-rw-r--r--drivers/infiniband/core/ucm.h83
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diff --git a/drivers/infiniband/core/ucm.h b/drivers/infiniband/core/ucm.h
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1/*
2 * Copyright (c) 2005 Topspin Communications. All rights reserved.
3 * Copyright (c) 2005 Intel Corporation. All rights reserved.
4 *
5 * This software is available to you under a choice of one of two
6 * licenses. You may choose to be licensed under the terms of the GNU
7 * General Public License (GPL) Version 2, available from the file
8 * COPYING in the main directory of this source tree, or the
9 * OpenIB.org BSD license below:
10 *
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
13 * conditions are met:
14 *
15 * - Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
17 * disclaimer.
18 *
19 * - Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials
22 * provided with the distribution.
23 *
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
31 * SOFTWARE.
32 *
33 * $Id: ucm.h 2208 2005-04-22 23:24:31Z libor $
34 */
35
36#ifndef UCM_H
37#define UCM_H
38
39#include <linux/fs.h>
40#include <linux/device.h>
41#include <linux/cdev.h>
42#include <linux/idr.h>
43
44#include <rdma/ib_cm.h>
45#include <rdma/ib_user_cm.h>
46
47struct ib_ucm_file {
48 struct semaphore mutex;
49 struct file *filp;
50
51 struct list_head ctxs; /* list of active connections */
52 struct list_head events; /* list of pending events */
53 wait_queue_head_t poll_wait;
54};
55
56struct ib_ucm_context {
57 int id;
58 wait_queue_head_t wait;
59 atomic_t ref;
60 int events_reported;
61
62 struct ib_ucm_file *file;
63 struct ib_cm_id *cm_id;
64 __u64 uid;
65
66 struct list_head events; /* list of pending events. */
67 struct list_head file_list; /* member in file ctx list */
68};
69
70struct ib_ucm_event {
71 struct ib_ucm_context *ctx;
72 struct list_head file_list; /* member in file event list */
73 struct list_head ctx_list; /* member in ctx event list */
74
75 struct ib_cm_id *cm_id;
76 struct ib_ucm_event_resp resp;
77 void *data;
78 void *info;
79 int data_len;
80 int info_len;
81};
82
83#endif /* UCM_H */