1/*-
2 * Copyright (c) 2017 Mellanox Technologies. All rights reserved.
3 *
4 * This software is available to you under a choice of one of two
5 * licenses.  You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 *     Redistribution and use in source and binary forms, with or
11 *     without modification, are permitted provided that the following
12 *     conditions are met:
13 *
14 *      - Redistributions of source code must retain the above
15 *        copyright notice, this list of conditions and the following
16 *        disclaimer.
17 *
18 *      - Redistributions in binary form must reproduce the above
19 *        copyright notice, this list of conditions and the following
20 *        disclaimer in the documentation and/or other materials
21 *        provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 */
32
33#include <linux/module.h>
34#include <dev/mlx5/mlx5_fpga_tools/tools.h>
35#include <dev/mlx5/mlx5_fpga_tools/tools_char.h>
36
37MODULE_DEPEND(mlx5fpga_tools, linuxkpi, 1, 1, 1);
38MODULE_DEPEND(mlx5fpga_tools, mlx5, 1, 1, 1);
39MODULE_DEPEND(mlx5fpga_tools, mlx5fpga, 1, 1, 1);
40MODULE_VERSION(mlx5fpga_tools, 1);
41
42static void mlx5_fpga_tools_create(struct mlx5_fpga_device *fdev);
43static int mlx5_fpga_tools_add(struct mlx5_fpga_device *fdev, u32 vid, u16 pid);
44static void mlx5_fpga_tools_remove(struct mlx5_fpga_device *fdev);
45static void mlx5_fpga_tools_destroy(struct mlx5_fpga_device *fdev);
46
47struct mlx5_fpga_tools_dev *mlx5_fpga_tools_alloc(struct mlx5_fpga_device *fdev);
48void mlx5_fpga_tools_free(struct mlx5_fpga_tools_dev *tdev);
49
50static struct mlx5_fpga_client mlx5_fpga_tools_client = {
51	.name = MLX5_FPGA_TOOLS_DRIVER_NAME,
52	.create = mlx5_fpga_tools_create,
53	.add = mlx5_fpga_tools_add,
54	.remove = mlx5_fpga_tools_remove,
55	.destroy = mlx5_fpga_tools_destroy,
56};
57
58struct mlx5_fpga_tools_dev *mlx5_fpga_tools_alloc(struct mlx5_fpga_device *fdev)
59{
60	int ret;
61	struct mlx5_fpga_tools_dev *tdev;
62
63	tdev = kzalloc(sizeof(*tdev), GFP_KERNEL);
64	if (!tdev)
65		goto out;
66
67	tdev->fdev = fdev;
68	sx_init(&tdev->lock, "mlx5fpgat");
69	ret = mlx5_fpga_tools_char_add_one(tdev);
70	if (ret)
71		goto err_free;
72
73	goto out;
74
75err_free:
76	kfree(tdev);
77	tdev = NULL;
78
79out:
80	return tdev;
81}
82
83void mlx5_fpga_tools_free(struct mlx5_fpga_tools_dev *tdev)
84{
85	mlx5_fpga_tools_char_remove_one(tdev);
86	kfree(tdev);
87}
88
89static void mlx5_fpga_tools_create(struct mlx5_fpga_device *fdev)
90{
91	struct mlx5_fpga_tools_dev *dev = NULL;
92
93	dev_dbg(mlx5_fpga_dev(fdev), "tools_create\n");
94
95	dev = mlx5_fpga_tools_alloc(fdev);
96	if (!dev)
97		return;
98
99	mlx5_fpga_client_data_set(fdev, &mlx5_fpga_tools_client, dev);
100}
101
102static int mlx5_fpga_tools_add(struct mlx5_fpga_device *fdev, u32 vid, u16 pid)
103{
104	return 0;
105}
106
107static void mlx5_fpga_tools_remove(struct mlx5_fpga_device *fdev)
108{
109}
110
111static void mlx5_fpga_tools_destroy(struct mlx5_fpga_device *fdev)
112{
113	struct mlx5_fpga_tools_dev *dev;
114
115	dev_dbg(mlx5_fpga_dev(fdev), "tools_destroy\n");
116
117	dev = mlx5_fpga_client_data_get(fdev, &mlx5_fpga_tools_client);
118	if (dev)
119		mlx5_fpga_tools_free(dev);
120}
121
122static int __init mlx5_fpga_tools_init(void)
123{
124	int ret = mlx5_fpga_tools_char_init();
125
126	if (ret)
127		return ret;
128	mlx5_fpga_client_register(&mlx5_fpga_tools_client);
129	return 0;
130}
131
132static void __exit mlx5_fpga_tools_exit(void)
133{
134	mlx5_fpga_client_unregister(&mlx5_fpga_tools_client);
135	mlx5_fpga_tools_char_deinit();
136}
137
138module_init_order(mlx5_fpga_tools_init, SI_ORDER_SECOND);
139module_exit_order(mlx5_fpga_tools_exit, SI_ORDER_SECOND);
140