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e126ba97 | 1 | /* |
302bdf68 | 2 | * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved. |
e126ba97 EC |
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/kernel.h> | |
34 | #include <linux/module.h> | |
35 | #include <linux/mlx5/driver.h> | |
36 | #include <linux/mlx5/cmd.h> | |
37 | #include <rdma/ib_verbs.h> | |
38 | #include "mlx5_core.h" | |
39 | ||
40 | struct mlx5_attach_mcg_mbox_in { | |
41 | struct mlx5_inbox_hdr hdr; | |
42 | __be32 qpn; | |
43 | __be32 rsvd; | |
44 | u8 gid[16]; | |
45 | }; | |
46 | ||
47 | struct mlx5_attach_mcg_mbox_out { | |
48 | struct mlx5_outbox_hdr hdr; | |
49 | u8 rsvf[8]; | |
50 | }; | |
51 | ||
52 | struct mlx5_detach_mcg_mbox_in { | |
53 | struct mlx5_inbox_hdr hdr; | |
54 | __be32 qpn; | |
55 | __be32 rsvd; | |
56 | u8 gid[16]; | |
57 | }; | |
58 | ||
59 | struct mlx5_detach_mcg_mbox_out { | |
60 | struct mlx5_outbox_hdr hdr; | |
61 | u8 rsvf[8]; | |
62 | }; | |
63 | ||
64 | int mlx5_core_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn) | |
65 | { | |
66 | struct mlx5_attach_mcg_mbox_in in; | |
67 | struct mlx5_attach_mcg_mbox_out out; | |
68 | int err; | |
69 | ||
70 | memset(&in, 0, sizeof(in)); | |
71 | memset(&out, 0, sizeof(out)); | |
72 | in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_ATTACH_TO_MCG); | |
73 | memcpy(in.gid, mgid, sizeof(*mgid)); | |
74 | in.qpn = cpu_to_be32(qpn); | |
75 | err = mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out)); | |
76 | if (err) | |
77 | return err; | |
78 | ||
79 | if (out.hdr.status) | |
80 | err = mlx5_cmd_status_to_err(&out.hdr); | |
81 | ||
82 | return err; | |
83 | } | |
84 | EXPORT_SYMBOL(mlx5_core_attach_mcg); | |
85 | ||
86 | int mlx5_core_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn) | |
87 | { | |
88 | struct mlx5_detach_mcg_mbox_in in; | |
89 | struct mlx5_detach_mcg_mbox_out out; | |
90 | int err; | |
91 | ||
92 | memset(&in, 0, sizeof(in)); | |
93 | memset(&out, 0, sizeof(out)); | |
94 | in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_DETACH_FROM_MCG); | |
95 | memcpy(in.gid, mgid, sizeof(*mgid)); | |
96 | in.qpn = cpu_to_be32(qpn); | |
97 | err = mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out)); | |
98 | if (err) | |
99 | return err; | |
100 | ||
101 | if (out.hdr.status) | |
102 | err = mlx5_cmd_status_to_err(&out.hdr); | |
103 | ||
104 | return err; | |
105 | } | |
106 | EXPORT_SYMBOL(mlx5_core_detach_mcg); |