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Linux kernel mirror (for testing)
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1/*
2 * Copyright (c) 2005 Topspin Communications. All rights reserved.
3 * Copyright (c) 2005 Cisco Systems. All rights reserved.
4 * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
5 * Copyright (c) 2005 Voltaire, Inc. 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 * $Id: uverbs.h 2559 2005-06-06 19:43:16Z roland $
36 */
37
38#ifndef UVERBS_H
39#define UVERBS_H
40
41/* Include device.h and fs.h until cdev.h is self-sufficient */
42#include <linux/fs.h>
43#include <linux/device.h>
44#include <linux/cdev.h>
45#include <linux/kref.h>
46#include <linux/idr.h>
47
48#include <rdma/ib_verbs.h>
49#include <rdma/ib_user_verbs.h>
50
51struct ib_uverbs_device {
52 int devnum;
53 struct cdev dev;
54 struct class_device class_dev;
55 struct ib_device *ib_dev;
56 int num_comp;
57};
58
59struct ib_uverbs_event_file {
60 struct kref ref;
61 struct ib_uverbs_file *uverbs_file;
62 spinlock_t lock;
63 int fd;
64 int is_async;
65 wait_queue_head_t poll_wait;
66 struct fasync_struct *async_queue;
67 struct list_head event_list;
68};
69
70struct ib_uverbs_file {
71 struct kref ref;
72 struct ib_uverbs_device *device;
73 struct ib_ucontext *ucontext;
74 struct ib_event_handler event_handler;
75 struct ib_uverbs_event_file async_file;
76 struct ib_uverbs_event_file comp_file[1];
77};
78
79struct ib_uverbs_event {
80 union {
81 struct ib_uverbs_async_event_desc async;
82 struct ib_uverbs_comp_event_desc comp;
83 } desc;
84 struct list_head list;
85 struct list_head obj_list;
86 u32 *counter;
87};
88
89struct ib_uevent_object {
90 struct ib_uobject uobject;
91 struct list_head event_list;
92 u32 events_reported;
93};
94
95struct ib_ucq_object {
96 struct ib_uobject uobject;
97 struct list_head comp_list;
98 struct list_head async_list;
99 u32 comp_events_reported;
100 u32 async_events_reported;
101};
102
103extern struct semaphore ib_uverbs_idr_mutex;
104extern struct idr ib_uverbs_pd_idr;
105extern struct idr ib_uverbs_mr_idr;
106extern struct idr ib_uverbs_mw_idr;
107extern struct idr ib_uverbs_ah_idr;
108extern struct idr ib_uverbs_cq_idr;
109extern struct idr ib_uverbs_qp_idr;
110extern struct idr ib_uverbs_srq_idr;
111
112void ib_uverbs_comp_handler(struct ib_cq *cq, void *cq_context);
113void ib_uverbs_cq_event_handler(struct ib_event *event, void *context_ptr);
114void ib_uverbs_qp_event_handler(struct ib_event *event, void *context_ptr);
115void ib_uverbs_srq_event_handler(struct ib_event *event, void *context_ptr);
116
117int ib_umem_get(struct ib_device *dev, struct ib_umem *mem,
118 void *addr, size_t size, int write);
119void ib_umem_release(struct ib_device *dev, struct ib_umem *umem);
120void ib_umem_release_on_close(struct ib_device *dev, struct ib_umem *umem);
121
122#define IB_UVERBS_DECLARE_CMD(name) \
123 ssize_t ib_uverbs_##name(struct ib_uverbs_file *file, \
124 const char __user *buf, int in_len, \
125 int out_len)
126
127IB_UVERBS_DECLARE_CMD(query_params);
128IB_UVERBS_DECLARE_CMD(get_context);
129IB_UVERBS_DECLARE_CMD(query_device);
130IB_UVERBS_DECLARE_CMD(query_port);
131IB_UVERBS_DECLARE_CMD(query_gid);
132IB_UVERBS_DECLARE_CMD(query_pkey);
133IB_UVERBS_DECLARE_CMD(alloc_pd);
134IB_UVERBS_DECLARE_CMD(dealloc_pd);
135IB_UVERBS_DECLARE_CMD(reg_mr);
136IB_UVERBS_DECLARE_CMD(dereg_mr);
137IB_UVERBS_DECLARE_CMD(create_cq);
138IB_UVERBS_DECLARE_CMD(destroy_cq);
139IB_UVERBS_DECLARE_CMD(create_qp);
140IB_UVERBS_DECLARE_CMD(modify_qp);
141IB_UVERBS_DECLARE_CMD(destroy_qp);
142IB_UVERBS_DECLARE_CMD(attach_mcast);
143IB_UVERBS_DECLARE_CMD(detach_mcast);
144IB_UVERBS_DECLARE_CMD(create_srq);
145IB_UVERBS_DECLARE_CMD(modify_srq);
146IB_UVERBS_DECLARE_CMD(destroy_srq);
147
148#endif /* UVERBS_H */