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-rw-r--r--drivers/infiniband/core/uverbs.h132
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1/*
2 * Copyright (c) 2005 Topspin Communications. All rights reserved.
3 * Copyright (c) 2005 Cisco Systems. 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: uverbs.h 2559 2005-06-06 19:43:16Z roland $
34 */
35
36#ifndef UVERBS_H
37#define UVERBS_H
38
39/* Include device.h and fs.h until cdev.h is self-sufficient */
40#include <linux/fs.h>
41#include <linux/device.h>
42#include <linux/cdev.h>
43#include <linux/kref.h>
44#include <linux/idr.h>
45
46#include <ib_verbs.h>
47#include <ib_user_verbs.h>
48
49struct ib_uverbs_device {
50 int devnum;
51 struct cdev dev;
52 struct class_device class_dev;
53 struct ib_device *ib_dev;
54 int num_comp;
55};
56
57struct ib_uverbs_event_file {
58 struct kref ref;
59 struct ib_uverbs_file *uverbs_file;
60 spinlock_t lock;
61 int fd;
62 int is_async;
63 wait_queue_head_t poll_wait;
64 struct list_head event_list;
65};
66
67struct ib_uverbs_file {
68 struct kref ref;
69 struct ib_uverbs_device *device;
70 struct ib_ucontext *ucontext;
71 struct ib_event_handler event_handler;
72 struct ib_uverbs_event_file async_file;
73 struct ib_uverbs_event_file comp_file[1];
74};
75
76struct ib_uverbs_async_event {
77 struct ib_uverbs_async_event_desc desc;
78 struct list_head list;
79};
80
81struct ib_uverbs_comp_event {
82 struct ib_uverbs_comp_event_desc desc;
83 struct list_head list;
84};
85
86struct ib_uobject_mr {
87 struct ib_uobject uobj;
88 struct page *page_list;
89 struct scatterlist *sg_list;
90};
91
92extern struct semaphore ib_uverbs_idr_mutex;
93extern struct idr ib_uverbs_pd_idr;
94extern struct idr ib_uverbs_mr_idr;
95extern struct idr ib_uverbs_mw_idr;
96extern struct idr ib_uverbs_ah_idr;
97extern struct idr ib_uverbs_cq_idr;
98extern struct idr ib_uverbs_qp_idr;
99
100void ib_uverbs_comp_handler(struct ib_cq *cq, void *cq_context);
101void ib_uverbs_cq_event_handler(struct ib_event *event, void *context_ptr);
102void ib_uverbs_qp_event_handler(struct ib_event *event, void *context_ptr);
103
104int ib_umem_get(struct ib_device *dev, struct ib_umem *mem,
105 void *addr, size_t size, int write);
106void ib_umem_release(struct ib_device *dev, struct ib_umem *umem);
107void ib_umem_release_on_close(struct ib_device *dev, struct ib_umem *umem);
108
109#define IB_UVERBS_DECLARE_CMD(name) \
110 ssize_t ib_uverbs_##name(struct ib_uverbs_file *file, \
111 const char __user *buf, int in_len, \
112 int out_len)
113
114IB_UVERBS_DECLARE_CMD(query_params);
115IB_UVERBS_DECLARE_CMD(get_context);
116IB_UVERBS_DECLARE_CMD(query_device);
117IB_UVERBS_DECLARE_CMD(query_port);
118IB_UVERBS_DECLARE_CMD(query_gid);
119IB_UVERBS_DECLARE_CMD(query_pkey);
120IB_UVERBS_DECLARE_CMD(alloc_pd);
121IB_UVERBS_DECLARE_CMD(dealloc_pd);
122IB_UVERBS_DECLARE_CMD(reg_mr);
123IB_UVERBS_DECLARE_CMD(dereg_mr);
124IB_UVERBS_DECLARE_CMD(create_cq);
125IB_UVERBS_DECLARE_CMD(destroy_cq);
126IB_UVERBS_DECLARE_CMD(create_qp);
127IB_UVERBS_DECLARE_CMD(modify_qp);
128IB_UVERBS_DECLARE_CMD(destroy_qp);
129IB_UVERBS_DECLARE_CMD(attach_mcast);
130IB_UVERBS_DECLARE_CMD(detach_mcast);
131
132#endif /* UVERBS_H */
generated by cgit v1.2.2 (git 2.25.0) at 2025-03-11 17:48:19 -0400