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[FreeBSD/releng/10.3.git] / sys / dev / mlx5 / mlx5_core / mlx5_mcg.c
1 /*-
2  * Copyright (c) 2013-2015, Mellanox Technologies, Ltd.  All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS `AS IS' AND
14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16  * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
17  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23  * SUCH DAMAGE.
24  *
25  * $FreeBSD$
26  */
27
28 #include <linux/kernel.h>
29 #include <linux/module.h>
30 #include <dev/mlx5/driver.h>
31 #include <rdma/ib_verbs.h>
32 #include "mlx5_core.h"
33
34 int mlx5_core_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn)
35 {
36         u32 in[MLX5_ST_SZ_DW(attach_to_mcg_in)];
37         u32 out[MLX5_ST_SZ_DW(attach_to_mcg_out)];
38
39         memset(in, 0, sizeof(in));
40
41         MLX5_SET(attach_to_mcg_in, in, opcode, MLX5_CMD_OP_ATTACH_TO_MCG);
42         MLX5_SET(attach_to_mcg_in, in, qpn, qpn);
43         memcpy(MLX5_ADDR_OF(attach_to_mcg_in, in, multicast_gid), mgid,
44                sizeof(*mgid));
45
46         memset(out, 0, sizeof(out));
47         return mlx5_cmd_exec_check_status(dev, in,  sizeof(in),
48                                                out, sizeof(out));
49 }
50 EXPORT_SYMBOL(mlx5_core_attach_mcg);
51
52 int mlx5_core_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn)
53 {
54         u32 in[MLX5_ST_SZ_DW(detach_from_mcg_in)];
55         u32 out[MLX5_ST_SZ_DW(detach_from_mcg_out)];
56
57         memset(in, 0, sizeof(in));
58
59         MLX5_SET(detach_from_mcg_in, in, opcode, MLX5_CMD_OP_DETACH_FROM_MCG);
60         MLX5_SET(detach_from_mcg_in, in, qpn, qpn);
61         memcpy(MLX5_ADDR_OF(detach_from_mcg_in, in, multicast_gid), mgid,
62                sizeof(*mgid));
63
64         memset(out, 0, sizeof(out));
65         return mlx5_cmd_exec_check_status(dev, in,  sizeof(in),
66                                                out, sizeof(out));
67 }
68 EXPORT_SYMBOL(mlx5_core_detach_mcg);