1 /*
2 * Copyright (c) 2013-2015, 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/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 int mlx5_core_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn)
41 {
42 u32 out[MLX5_ST_SZ_DW(attach_to_mcg_out)] = {0};
43 u32 in[MLX5_ST_SZ_DW(attach_to_mcg_in)] = {0};
44 void *gid;
45
46 MLX5_SET(attach_to_mcg_in, in, opcode, MLX5_CMD_OP_ATTACH_TO_MCG);
47 MLX5_SET(attach_to_mcg_in, in, qpn, qpn);
48 gid = MLX5_ADDR_OF(attach_to_mcg_in, in, multicast_gid);
49 memcpy(gid, mgid, sizeof(*mgid));
50 return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
51 }
52 EXPORT_SYMBOL(mlx5_core_attach_mcg);
53
54 int mlx5_core_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn)
55 {
56 u32 out[MLX5_ST_SZ_DW(detach_from_mcg_out)] = {0};
57 u32 in[MLX5_ST_SZ_DW(detach_from_mcg_in)] = {0};
58 void *gid;
59
60 MLX5_SET(detach_from_mcg_in, in, opcode, MLX5_CMD_OP_DETACH_FROM_MCG);
61 MLX5_SET(detach_from_mcg_in, in, qpn, qpn);
62 gid = MLX5_ADDR_OF(detach_from_mcg_in, in, multicast_gid);
63 memcpy(gid, mgid, sizeof(*mgid));
64 return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
65 }
66 EXPORT_SYMBOL(mlx5_core_detach_mcg);