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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 "mlx5_core.h"
int mlx5_core_mad_ifc(struct mlx5_core_dev *dev, const void *inb, void *outb,
u16 opmod, u8 port)
{
int outlen = MLX5_ST_SZ_BYTES(mad_ifc_out);
int inlen = MLX5_ST_SZ_BYTES(mad_ifc_in);
int err = -ENOMEM;
void *data;
void *resp;
u32 *out;
u32 *in;
in = kzalloc(inlen, GFP_KERNEL);
out = kzalloc(outlen, GFP_KERNEL);
if (!in || !out)
goto out;
MLX5_SET(mad_ifc_in, in, opcode, MLX5_CMD_OP_MAD_IFC);
MLX5_SET(mad_ifc_in, in, op_mod, opmod);
MLX5_SET(mad_ifc_in, in, port, port);
data = MLX5_ADDR_OF(mad_ifc_in, in, mad);
memcpy(data, inb, MLX5_FLD_SZ_BYTES(mad_ifc_in, mad));
err = mlx5_cmd_exec(dev, in, inlen, out, outlen);
if (err)
goto out;
resp = MLX5_ADDR_OF(mad_ifc_out, out, response_mad_packet);
memcpy(outb, resp,
MLX5_FLD_SZ_BYTES(mad_ifc_out, response_mad_packet));
out:
kfree(out);
kfree(in);
return err;
}
EXPORT_SYMBOL_GPL(mlx5_core_mad_ifc);
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