/*-
 * Copyright (c) 2013-2017, Mellanox Technologies, Ltd.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS `AS IS' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $FreeBSD$
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <dev/mlx5/driver.h>
#include <rdma/ib_verbs.h>
#include "mlx5_core.h"

int mlx5_core_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn)
{
	u32 in[MLX5_ST_SZ_DW(attach_to_mcg_in)] = {0};
	u32 out[MLX5_ST_SZ_DW(attach_to_mcg_out)] = {0};

	MLX5_SET(attach_to_mcg_in, in, opcode, MLX5_CMD_OP_ATTACH_TO_MCG);
	MLX5_SET(attach_to_mcg_in, in, qpn, qpn);
	memcpy(MLX5_ADDR_OF(attach_to_mcg_in, in, multicast_gid), mgid,
	       sizeof(*mgid));

	return mlx5_cmd_exec(dev, in,  sizeof(in), out, sizeof(out));
}
EXPORT_SYMBOL(mlx5_core_attach_mcg);

int mlx5_core_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn)
{
	u32 in[MLX5_ST_SZ_DW(detach_from_mcg_in)] = {0};
	u32 out[MLX5_ST_SZ_DW(detach_from_mcg_out)] = {0};

	MLX5_SET(detach_from_mcg_in, in, opcode, MLX5_CMD_OP_DETACH_FROM_MCG);
	MLX5_SET(detach_from_mcg_in, in, qpn, qpn);
	memcpy(MLX5_ADDR_OF(detach_from_mcg_in, in, multicast_gid), mgid,
	       sizeof(*mgid));

	return mlx5_cmd_exec(dev, in,  sizeof(in), out, sizeof(out));
}
EXPORT_SYMBOL(mlx5_core_detach_mcg);