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 */
19 enum {
20 MLXSW_EMAD_TLV_TYPE_END,
21 MLXSW_EMAD_TLV_TYPE_OP,
22 MLXSW_EMAD_TLV_TYPE_DR,
23 MLXSW_EMAD_TLV_TYPE_REG,
24 MLXSW_EMAD_TLV_TYPE_USERDATA,
25 MLXSW_EMAD_TLV_TYPE_OOBETH,
26 };
27
28 /* OP TLV */
29 #define MLXSW_EMAD_OP_TLV_LEN 4 /* Length in u32 */
30
31 enum {
32 MLXSW_EMAD_OP_TLV_CLASS_REG_ACCESS = 1,
33 MLXSW_EMAD_OP_TLV_CLASS_IPC = 2,
34 };
35
36 enum mlxsw_emad_op_tlv_status {
37 MLXSW_EMAD_OP_TLV_STATUS_SUCCESS,
38 MLXSW_EMAD_OP_TLV_STATUS_BUSY,
39 MLXSW_EMAD_OP_TLV_STATUS_VERSION_NOT_SUPPORTED,
40 MLXSW_EMAD_OP_TLV_STATUS_UNKNOWN_TLV,
41 MLXSW_EMAD_OP_TLV_STATUS_REGISTER_NOT_SUPPORTED,
42 MLXSW_EMAD_OP_TLV_STATUS_CLASS_NOT_SUPPORTED,
43 MLXSW_EMAD_OP_TLV_STATUS_METHOD_NOT_SUPPORTED,
44 MLXSW_EMAD_OP_TLV_STATUS_BAD_PARAMETER,
45 MLXSW_EMAD_OP_TLV_STATUS_RESOURCE_NOT_AVAILABLE,
46 MLXSW_EMAD_OP_TLV_STATUS_MESSAGE_RECEIPT_ACK,
47 MLXSW_EMAD_OP_TLV_STATUS_INTERNAL_ERROR = 0x70,
48 };
49
mlxsw_emad_op_tlv_status_str(u8 status)50 static inline char *mlxsw_emad_op_tlv_status_str(u8 status)
51 {
52 switch (status) {
53 case MLXSW_EMAD_OP_TLV_STATUS_SUCCESS:
54 return "operation performed";
55 case MLXSW_EMAD_OP_TLV_STATUS_BUSY:
56 return "device is busy";
57 case MLXSW_EMAD_OP_TLV_STATUS_VERSION_NOT_SUPPORTED:
58 return "version not supported";
59 case MLXSW_EMAD_OP_TLV_STATUS_UNKNOWN_TLV:
60 return "unknown TLV";
61 case MLXSW_EMAD_OP_TLV_STATUS_REGISTER_NOT_SUPPORTED:
62 return "register not supported";
63 case MLXSW_EMAD_OP_TLV_STATUS_CLASS_NOT_SUPPORTED:
64 return "class not supported";
65 case MLXSW_EMAD_OP_TLV_STATUS_METHOD_NOT_SUPPORTED:
66 return "method not supported";
67 case MLXSW_EMAD_OP_TLV_STATUS_BAD_PARAMETER:
68 return "bad parameter";
69 case MLXSW_EMAD_OP_TLV_STATUS_RESOURCE_NOT_AVAILABLE:
70 return "resource not available";
71 case MLXSW_EMAD_OP_TLV_STATUS_MESSAGE_RECEIPT_ACK:
72 return "acknowledged. retransmit";
73 case MLXSW_EMAD_OP_TLV_STATUS_INTERNAL_ERROR:
74 return "internal error";
75 default:
76 return "*UNKNOWN*";
77 }
78 }
79
80 enum {
81 MLXSW_EMAD_OP_TLV_REQUEST,
82 MLXSW_EMAD_OP_TLV_RESPONSE
83 };
84
85 enum {
86 MLXSW_EMAD_OP_TLV_METHOD_QUERY = 1,
87 MLXSW_EMAD_OP_TLV_METHOD_WRITE = 2,
88 MLXSW_EMAD_OP_TLV_METHOD_SEND = 3,
89 MLXSW_EMAD_OP_TLV_METHOD_EVENT = 5,
90 };
91
92 /* END TLV */
93 #define MLXSW_EMAD_END_TLV_LEN 1 /* Length in u32 */
94
95 #endif
96
