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/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
/* Copyright (c) 2015-2018 Mellanox Technologies. All rights reserved */
#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_STRING,
MLXSW_EMAD_TLV_TYPE_REG,
MLXSW_EMAD_TLV_TYPE_LATENCY,
};
/* 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,
};
/* STRING TLV */
#define MLXSW_EMAD_STRING_TLV_LEN 33 /* Length in u32 */
/* LATENCY TLV */
#define MLXSW_EMAD_LATENCY_TLV_LEN 7 /* Length in u32 */
/* END TLV */
#define MLXSW_EMAD_END_TLV_LEN 1 /* Length in u32 */
#endif
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