linux/drivers/net/ethernet/mellanox/mlxsw/emad.h
<<
>>
Prefs
   1/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
   2/* Copyright (c) 2015-2018 Mellanox Technologies. All rights reserved */
   3
   4#ifndef _MLXSW_EMAD_H
   5#define _MLXSW_EMAD_H
   6
   7#define MLXSW_EMAD_MAX_FRAME_LEN 1518   /* Length in u8 */
   8#define MLXSW_EMAD_MAX_RETRY 5
   9
  10/* EMAD Ethernet header */
  11#define MLXSW_EMAD_ETH_HDR_LEN 0x10     /* Length in u8 */
  12#define MLXSW_EMAD_EH_DMAC "\x01\x02\xc9\x00\x00\x01"
  13#define MLXSW_EMAD_EH_SMAC "\x00\x02\xc9\x01\x02\x03"
  14#define MLXSW_EMAD_EH_ETHERTYPE 0x8932
  15#define MLXSW_EMAD_EH_MLX_PROTO 0
  16#define MLXSW_EMAD_EH_PROTO_VERSION 0
  17
  18/* EMAD TLV Types */
  19enum {
  20        MLXSW_EMAD_TLV_TYPE_END,
  21        MLXSW_EMAD_TLV_TYPE_OP,
  22        MLXSW_EMAD_TLV_TYPE_STRING,
  23        MLXSW_EMAD_TLV_TYPE_REG,
  24};
  25
  26/* OP TLV */
  27#define MLXSW_EMAD_OP_TLV_LEN 4         /* Length in u32 */
  28
  29enum {
  30        MLXSW_EMAD_OP_TLV_CLASS_REG_ACCESS = 1,
  31        MLXSW_EMAD_OP_TLV_CLASS_IPC = 2,
  32};
  33
  34enum mlxsw_emad_op_tlv_status {
  35        MLXSW_EMAD_OP_TLV_STATUS_SUCCESS,
  36        MLXSW_EMAD_OP_TLV_STATUS_BUSY,
  37        MLXSW_EMAD_OP_TLV_STATUS_VERSION_NOT_SUPPORTED,
  38        MLXSW_EMAD_OP_TLV_STATUS_UNKNOWN_TLV,
  39        MLXSW_EMAD_OP_TLV_STATUS_REGISTER_NOT_SUPPORTED,
  40        MLXSW_EMAD_OP_TLV_STATUS_CLASS_NOT_SUPPORTED,
  41        MLXSW_EMAD_OP_TLV_STATUS_METHOD_NOT_SUPPORTED,
  42        MLXSW_EMAD_OP_TLV_STATUS_BAD_PARAMETER,
  43        MLXSW_EMAD_OP_TLV_STATUS_RESOURCE_NOT_AVAILABLE,
  44        MLXSW_EMAD_OP_TLV_STATUS_MESSAGE_RECEIPT_ACK,
  45        MLXSW_EMAD_OP_TLV_STATUS_INTERNAL_ERROR = 0x70,
  46};
  47
  48static inline char *mlxsw_emad_op_tlv_status_str(u8 status)
  49{
  50        switch (status) {
  51        case MLXSW_EMAD_OP_TLV_STATUS_SUCCESS:
  52                return "operation performed";
  53        case MLXSW_EMAD_OP_TLV_STATUS_BUSY:
  54                return "device is busy";
  55        case MLXSW_EMAD_OP_TLV_STATUS_VERSION_NOT_SUPPORTED:
  56                return "version not supported";
  57        case MLXSW_EMAD_OP_TLV_STATUS_UNKNOWN_TLV:
  58                return "unknown TLV";
  59        case MLXSW_EMAD_OP_TLV_STATUS_REGISTER_NOT_SUPPORTED:
  60                return "register not supported";
  61        case MLXSW_EMAD_OP_TLV_STATUS_CLASS_NOT_SUPPORTED:
  62                return "class not supported";
  63        case MLXSW_EMAD_OP_TLV_STATUS_METHOD_NOT_SUPPORTED:
  64                return "method not supported";
  65        case MLXSW_EMAD_OP_TLV_STATUS_BAD_PARAMETER:
  66                return "bad parameter";
  67        case MLXSW_EMAD_OP_TLV_STATUS_RESOURCE_NOT_AVAILABLE:
  68                return "resource not available";
  69        case MLXSW_EMAD_OP_TLV_STATUS_MESSAGE_RECEIPT_ACK:
  70                return "acknowledged. retransmit";
  71        case MLXSW_EMAD_OP_TLV_STATUS_INTERNAL_ERROR:
  72                return "internal error";
  73        default:
  74                return "*UNKNOWN*";
  75        }
  76}
  77
  78enum {
  79        MLXSW_EMAD_OP_TLV_REQUEST,
  80        MLXSW_EMAD_OP_TLV_RESPONSE
  81};
  82
  83enum {
  84        MLXSW_EMAD_OP_TLV_METHOD_QUERY = 1,
  85        MLXSW_EMAD_OP_TLV_METHOD_WRITE = 2,
  86        MLXSW_EMAD_OP_TLV_METHOD_SEND = 3,
  87        MLXSW_EMAD_OP_TLV_METHOD_EVENT = 5,
  88};
  89
  90/* STRING TLV */
  91#define MLXSW_EMAD_STRING_TLV_LEN 33    /* Length in u32 */
  92
  93/* END TLV */
  94#define MLXSW_EMAD_END_TLV_LEN 1        /* Length in u32 */
  95
  96#endif
  97