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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 two5 * licenses. You may choose to be licensed under the terms of the GNU6 * General Public License (GPL) Version 2, available from the file7 * COPYING in the main directory of this source tree, or the8 * OpenIB.org BSD license below:9 *10 * Redistribution and use in source and binary forms, with or11 * without modification, are permitted provided that the following12 * conditions are met:13 *14 * - Redistributions of source code must retain the above15 * copyright notice, this list of conditions and the following16 * disclaimer.17 *18 * - Redistributions in binary form must reproduce the above19 * copyright notice, this list of conditions and the following20 * disclaimer in the documentation and/or other materials21 * 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 OF25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE30 * SOFTWARE.31 */32 33#include <linux/kernel.h>34#include <linux/mlx5/driver.h>35#include <rdma/ib_verbs.h>36#include "mlx5_core.h"37 38int mlx5_core_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn)39{40 u32 in[MLX5_ST_SZ_DW(attach_to_mcg_in)] = {};41 void *gid;42 43 MLX5_SET(attach_to_mcg_in, in, opcode, MLX5_CMD_OP_ATTACH_TO_MCG);44 MLX5_SET(attach_to_mcg_in, in, qpn, qpn);45 gid = MLX5_ADDR_OF(attach_to_mcg_in, in, multicast_gid);46 memcpy(gid, mgid, sizeof(*mgid));47 return mlx5_cmd_exec_in(dev, attach_to_mcg, in);48}49EXPORT_SYMBOL(mlx5_core_attach_mcg);50 51int mlx5_core_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn)52{53 u32 in[MLX5_ST_SZ_DW(detach_from_mcg_in)] = {};54 void *gid;55 56 MLX5_SET(detach_from_mcg_in, in, opcode, MLX5_CMD_OP_DETACH_FROM_MCG);57 MLX5_SET(detach_from_mcg_in, in, qpn, qpn);58 gid = MLX5_ADDR_OF(detach_from_mcg_in, in, multicast_gid);59 memcpy(gid, mgid, sizeof(*mgid));60 return mlx5_cmd_exec_in(dev, detach_from_mcg, in);61}62EXPORT_SYMBOL(mlx5_core_detach_mcg);63