1/*-
2 * Copyright (c) 2013-2017, 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
26#include "opt_rss.h"
27#include "opt_ratelimit.h"
28
29#include <linux/kernel.h>
30#include <linux/module.h>
31#include <dev/mlx5/driver.h>
32#include <rdma/ib_verbs.h>
33#include <dev/mlx5/mlx5_core/mlx5_core.h>
34
35int mlx5_core_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn)
36{
37	u32 in[MLX5_ST_SZ_DW(attach_to_mcg_in)] = {0};
38	u32 out[MLX5_ST_SZ_DW(attach_to_mcg_out)] = {0};
39
40	MLX5_SET(attach_to_mcg_in, in, opcode, MLX5_CMD_OP_ATTACH_TO_MCG);
41	MLX5_SET(attach_to_mcg_in, in, qpn, qpn);
42	memcpy(MLX5_ADDR_OF(attach_to_mcg_in, in, multicast_gid), mgid,
43	       sizeof(*mgid));
44
45	return mlx5_cmd_exec(dev, in,  sizeof(in), out, sizeof(out));
46}
47EXPORT_SYMBOL(mlx5_core_attach_mcg);
48
49int mlx5_core_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn)
50{
51	u32 in[MLX5_ST_SZ_DW(detach_from_mcg_in)] = {0};
52	u32 out[MLX5_ST_SZ_DW(detach_from_mcg_out)] = {0};
53
54	MLX5_SET(detach_from_mcg_in, in, opcode, MLX5_CMD_OP_DETACH_FROM_MCG);
55	MLX5_SET(detach_from_mcg_in, in, qpn, qpn);
56	memcpy(MLX5_ADDR_OF(detach_from_mcg_in, in, multicast_gid), mgid,
57	       sizeof(*mgid));
58
59	return mlx5_cmd_exec(dev, in,  sizeof(in), out, sizeof(out));
60}
61EXPORT_SYMBOL(mlx5_core_detach_mcg);
62