/*
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* Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/mlx5/driver.h>
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#include <linux/mlx5/cmd.h>
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#include "mlx5_core.h"
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int mlx5_core_mad_ifc(struct mlx5_core_dev *dev, const void *inb, void *outb,
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u16 opmod, u8 port)
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{
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int outlen = MLX5_ST_SZ_BYTES(mad_ifc_out);
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int inlen = MLX5_ST_SZ_BYTES(mad_ifc_in);
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int err = -ENOMEM;
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void *data;
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void *resp;
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u32 *out;
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u32 *in;
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in = kzalloc(inlen, GFP_KERNEL);
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out = kzalloc(outlen, GFP_KERNEL);
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if (!in || !out)
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goto out;
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MLX5_SET(mad_ifc_in, in, opcode, MLX5_CMD_OP_MAD_IFC);
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MLX5_SET(mad_ifc_in, in, op_mod, opmod);
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MLX5_SET(mad_ifc_in, in, port, port);
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data = MLX5_ADDR_OF(mad_ifc_in, in, mad);
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memcpy(data, inb, MLX5_FLD_SZ_BYTES(mad_ifc_in, mad));
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err = mlx5_cmd_exec(dev, in, inlen, out, outlen);
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if (err)
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goto out;
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resp = MLX5_ADDR_OF(mad_ifc_out, out, response_mad_packet);
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memcpy(outb, resp,
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MLX5_FLD_SZ_BYTES(mad_ifc_out, response_mad_packet));
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out:
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kfree(out);
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kfree(in);
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return err;
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}
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EXPORT_SYMBOL_GPL(mlx5_core_mad_ifc);
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