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/*
* Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - 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.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mlx5/driver.h>
#include <linux/mlx5/cmd.h>
#include <rdma/ib_verbs.h>
#include "mlx5_core.h"
struct mlx5_attach_mcg_mbox_in {
struct mlx5_inbox_hdr hdr;
__be32 qpn;
__be32 rsvd;
u8 gid[16];
};
struct mlx5_attach_mcg_mbox_out {
struct mlx5_outbox_hdr hdr;
u8 rsvf[8];
};
struct mlx5_detach_mcg_mbox_in {
struct mlx5_inbox_hdr hdr;
__be32 qpn;
__be32 rsvd;
u8 gid[16];
};
struct mlx5_detach_mcg_mbox_out {
struct mlx5_outbox_hdr hdr;
u8 rsvf[8];
};
int mlx5_core_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn)
{
struct mlx5_attach_mcg_mbox_in in;
struct mlx5_attach_mcg_mbox_out out;
int err;
memset(&in, 0, sizeof(in));
memset(&out, 0, sizeof(out));
in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_ATTACH_TO_MCG);
memcpy(in.gid, mgid, sizeof(*mgid));
in.qpn = cpu_to_be32(qpn);
err = mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out));
if (err)
return err;
if (out.hdr.status)
err = mlx5_cmd_status_to_err(&out.hdr);
return err;
}
EXPORT_SYMBOL(mlx5_core_attach_mcg);
int mlx5_core_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn)
{
struct mlx5_detach_mcg_mbox_in in;
struct mlx5_detach_mcg_mbox_out out;
int err;
memset(&in, 0, sizeof(in));
memset(&out, 0, sizeof(out));
in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_DETTACH_FROM_MCG);
memcpy(in.gid, mgid, sizeof(*mgid));
in.qpn = cpu_to_be32(qpn);
err = mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out));
if (err)
return err;
if (out.hdr.status)
err = mlx5_cmd_status_to_err(&out.hdr);
return err;
}
EXPORT_SYMBOL(mlx5_core_detach_mcg);
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