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 * $FreeBSD: stable/12/sys/dev/mlx5/mlx5_core/mlx5_mcg.c 336451 2018-07-18 10:12:53Z hselasky $
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
mlx5_core_attach_mcg(struct mlx5_core_dev * dev,union ib_gid * mgid,u32 qpn)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)] = {0};
37 u32 out[MLX5_ST_SZ_DW(attach_to_mcg_out)] = {0};
38
39 MLX5_SET(attach_to_mcg_in, in, opcode, MLX5_CMD_OP_ATTACH_TO_MCG);
40 MLX5_SET(attach_to_mcg_in, in, qpn, qpn);
41 memcpy(MLX5_ADDR_OF(attach_to_mcg_in, in, multicast_gid), mgid,
42 sizeof(*mgid));
43
44 return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
45 }
46 EXPORT_SYMBOL(mlx5_core_attach_mcg);
47
mlx5_core_detach_mcg(struct mlx5_core_dev * dev,union ib_gid * mgid,u32 qpn)48 int mlx5_core_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn)
49 {
50 u32 in[MLX5_ST_SZ_DW(detach_from_mcg_in)] = {0};
51 u32 out[MLX5_ST_SZ_DW(detach_from_mcg_out)] = {0};
52
53 MLX5_SET(detach_from_mcg_in, in, opcode, MLX5_CMD_OP_DETACH_FROM_MCG);
54 MLX5_SET(detach_from_mcg_in, in, qpn, qpn);
55 memcpy(MLX5_ADDR_OF(detach_from_mcg_in, in, multicast_gid), mgid,
56 sizeof(*mgid));
57
58 return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
59 }
60 EXPORT_SYMBOL(mlx5_core_detach_mcg);
61