/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
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/* Copyright (c) 2015-2018 Mellanox Technologies. All rights reserved */
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#ifndef _MLXSW_EMAD_H
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#define _MLXSW_EMAD_H
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#define MLXSW_EMAD_MAX_FRAME_LEN 1518 /* Length in u8 */
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#define MLXSW_EMAD_MAX_RETRY 5
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/* EMAD Ethernet header */
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#define MLXSW_EMAD_ETH_HDR_LEN 0x10 /* Length in u8 */
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#define MLXSW_EMAD_EH_DMAC "\x01\x02\xc9\x00\x00\x01"
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#define MLXSW_EMAD_EH_SMAC "\x00\x02\xc9\x01\x02\x03"
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#define MLXSW_EMAD_EH_ETHERTYPE 0x8932
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#define MLXSW_EMAD_EH_MLX_PROTO 0
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#define MLXSW_EMAD_EH_PROTO_VERSION 0
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/* EMAD TLV Types */
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enum {
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MLXSW_EMAD_TLV_TYPE_END,
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MLXSW_EMAD_TLV_TYPE_OP,
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MLXSW_EMAD_TLV_TYPE_DR,
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MLXSW_EMAD_TLV_TYPE_REG,
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MLXSW_EMAD_TLV_TYPE_USERDATA,
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MLXSW_EMAD_TLV_TYPE_OOBETH,
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};
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/* OP TLV */
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#define MLXSW_EMAD_OP_TLV_LEN 4 /* Length in u32 */
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enum {
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MLXSW_EMAD_OP_TLV_CLASS_REG_ACCESS = 1,
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MLXSW_EMAD_OP_TLV_CLASS_IPC = 2,
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};
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enum mlxsw_emad_op_tlv_status {
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MLXSW_EMAD_OP_TLV_STATUS_SUCCESS,
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MLXSW_EMAD_OP_TLV_STATUS_BUSY,
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MLXSW_EMAD_OP_TLV_STATUS_VERSION_NOT_SUPPORTED,
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MLXSW_EMAD_OP_TLV_STATUS_UNKNOWN_TLV,
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MLXSW_EMAD_OP_TLV_STATUS_REGISTER_NOT_SUPPORTED,
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MLXSW_EMAD_OP_TLV_STATUS_CLASS_NOT_SUPPORTED,
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MLXSW_EMAD_OP_TLV_STATUS_METHOD_NOT_SUPPORTED,
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MLXSW_EMAD_OP_TLV_STATUS_BAD_PARAMETER,
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MLXSW_EMAD_OP_TLV_STATUS_RESOURCE_NOT_AVAILABLE,
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MLXSW_EMAD_OP_TLV_STATUS_MESSAGE_RECEIPT_ACK,
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MLXSW_EMAD_OP_TLV_STATUS_INTERNAL_ERROR = 0x70,
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};
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static inline char *mlxsw_emad_op_tlv_status_str(u8 status)
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{
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switch (status) {
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case MLXSW_EMAD_OP_TLV_STATUS_SUCCESS:
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return "operation performed";
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case MLXSW_EMAD_OP_TLV_STATUS_BUSY:
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return "device is busy";
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case MLXSW_EMAD_OP_TLV_STATUS_VERSION_NOT_SUPPORTED:
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return "version not supported";
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case MLXSW_EMAD_OP_TLV_STATUS_UNKNOWN_TLV:
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return "unknown TLV";
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case MLXSW_EMAD_OP_TLV_STATUS_REGISTER_NOT_SUPPORTED:
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return "register not supported";
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case MLXSW_EMAD_OP_TLV_STATUS_CLASS_NOT_SUPPORTED:
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return "class not supported";
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case MLXSW_EMAD_OP_TLV_STATUS_METHOD_NOT_SUPPORTED:
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return "method not supported";
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case MLXSW_EMAD_OP_TLV_STATUS_BAD_PARAMETER:
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return "bad parameter";
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case MLXSW_EMAD_OP_TLV_STATUS_RESOURCE_NOT_AVAILABLE:
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return "resource not available";
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case MLXSW_EMAD_OP_TLV_STATUS_MESSAGE_RECEIPT_ACK:
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return "acknowledged. retransmit";
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case MLXSW_EMAD_OP_TLV_STATUS_INTERNAL_ERROR:
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return "internal error";
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default:
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return "*UNKNOWN*";
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}
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}
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enum {
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MLXSW_EMAD_OP_TLV_REQUEST,
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MLXSW_EMAD_OP_TLV_RESPONSE
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};
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enum {
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MLXSW_EMAD_OP_TLV_METHOD_QUERY = 1,
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MLXSW_EMAD_OP_TLV_METHOD_WRITE = 2,
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MLXSW_EMAD_OP_TLV_METHOD_SEND = 3,
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MLXSW_EMAD_OP_TLV_METHOD_EVENT = 5,
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};
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/* END TLV */
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#define MLXSW_EMAD_END_TLV_LEN 1 /* Length in u32 */
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#endif
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