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/*
* drivers/net/ethernet/mellanox/mlxsw/emad.h
* Copyright (c) 2015 Mellanox Technologies. All rights reserved.
* Copyright (c) 2015 Ido Schimmel <idosch@mellanox.com>
* Copyright (c) 2015 Jiri Pirko <jiri@mellanox.com>
*
* 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.
* 3. Neither the names of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 THE COPYRIGHT OWNER 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.
*/
#ifndef _MLXSW_EMAD_H
#define _MLXSW_EMAD_H
#define MLXSW_EMAD_MAX_FRAME_LEN 1518 /* Length in u8 */
#define MLXSW_EMAD_MAX_RETRY 5
/* EMAD Ethernet header */
#define MLXSW_EMAD_ETH_HDR_LEN 0x10 /* Length in u8 */
#define MLXSW_EMAD_EH_DMAC "\x01\x02\xc9\x00\x00\x01"
#define MLXSW_EMAD_EH_SMAC "\x00\x02\xc9\x01\x02\x03"
#define MLXSW_EMAD_EH_ETHERTYPE 0x8932
#define MLXSW_EMAD_EH_MLX_PROTO 0
#define MLXSW_EMAD_EH_PROTO_VERSION 0
/* EMAD TLV Types */
enum {
MLXSW_EMAD_TLV_TYPE_END,
MLXSW_EMAD_TLV_TYPE_OP,
MLXSW_EMAD_TLV_TYPE_DR,
MLXSW_EMAD_TLV_TYPE_REG,
MLXSW_EMAD_TLV_TYPE_USERDATA,
MLXSW_EMAD_TLV_TYPE_OOBETH,
};
/* OP TLV */
#define MLXSW_EMAD_OP_TLV_LEN 4 /* Length in u32 */
enum {
MLXSW_EMAD_OP_TLV_CLASS_REG_ACCESS = 1,
MLXSW_EMAD_OP_TLV_CLASS_IPC = 2,
};
enum mlxsw_emad_op_tlv_status {
MLXSW_EMAD_OP_TLV_STATUS_SUCCESS,
MLXSW_EMAD_OP_TLV_STATUS_BUSY,
MLXSW_EMAD_OP_TLV_STATUS_VERSION_NOT_SUPPORTED,
MLXSW_EMAD_OP_TLV_STATUS_UNKNOWN_TLV,
MLXSW_EMAD_OP_TLV_STATUS_REGISTER_NOT_SUPPORTED,
MLXSW_EMAD_OP_TLV_STATUS_CLASS_NOT_SUPPORTED,
MLXSW_EMAD_OP_TLV_STATUS_METHOD_NOT_SUPPORTED,
MLXSW_EMAD_OP_TLV_STATUS_BAD_PARAMETER,
MLXSW_EMAD_OP_TLV_STATUS_RESOURCE_NOT_AVAILABLE,
MLXSW_EMAD_OP_TLV_STATUS_MESSAGE_RECEIPT_ACK,
MLXSW_EMAD_OP_TLV_STATUS_INTERNAL_ERROR = 0x70,
};
static inline char *mlxsw_emad_op_tlv_status_str(u8 status)
{
switch (status) {
case MLXSW_EMAD_OP_TLV_STATUS_SUCCESS:
return "operation performed";
case MLXSW_EMAD_OP_TLV_STATUS_BUSY:
return "device is busy";
case MLXSW_EMAD_OP_TLV_STATUS_VERSION_NOT_SUPPORTED:
return "version not supported";
case MLXSW_EMAD_OP_TLV_STATUS_UNKNOWN_TLV:
return "unknown TLV";
case MLXSW_EMAD_OP_TLV_STATUS_REGISTER_NOT_SUPPORTED:
return "register not supported";
case MLXSW_EMAD_OP_TLV_STATUS_CLASS_NOT_SUPPORTED:
return "class not supported";
case MLXSW_EMAD_OP_TLV_STATUS_METHOD_NOT_SUPPORTED:
return "method not supported";
case MLXSW_EMAD_OP_TLV_STATUS_BAD_PARAMETER:
return "bad parameter";
case MLXSW_EMAD_OP_TLV_STATUS_RESOURCE_NOT_AVAILABLE:
return "resource not available";
case MLXSW_EMAD_OP_TLV_STATUS_MESSAGE_RECEIPT_ACK:
return "acknowledged. retransmit";
case MLXSW_EMAD_OP_TLV_STATUS_INTERNAL_ERROR:
return "internal error";
default:
return "*UNKNOWN*";
}
}
enum {
MLXSW_EMAD_OP_TLV_REQUEST,
MLXSW_EMAD_OP_TLV_RESPONSE
};
enum {
MLXSW_EMAD_OP_TLV_METHOD_QUERY = 1,
MLXSW_EMAD_OP_TLV_METHOD_WRITE = 2,
MLXSW_EMAD_OP_TLV_METHOD_SEND = 3,
MLXSW_EMAD_OP_TLV_METHOD_EVENT = 5,
};
/* END TLV */
#define MLXSW_EMAD_END_TLV_LEN 1 /* Length in u32 */
#endif
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