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_STRING, |
23 | MLXSW_EMAD_TLV_TYPE_REG, |
24 | MLXSW_EMAD_TLV_TYPE_LATENCY, |
25 | }; |
26 | |
27 | /* OP TLV */ |
28 | #define MLXSW_EMAD_OP_TLV_LEN 4 /* Length in u32 */ |
29 | |
30 | enum { |
31 | MLXSW_EMAD_OP_TLV_CLASS_REG_ACCESS = 1, |
32 | MLXSW_EMAD_OP_TLV_CLASS_IPC = 2, |
33 | }; |
34 | |
35 | enum mlxsw_emad_op_tlv_status { |
36 | MLXSW_EMAD_OP_TLV_STATUS_SUCCESS, |
37 | MLXSW_EMAD_OP_TLV_STATUS_BUSY, |
38 | MLXSW_EMAD_OP_TLV_STATUS_VERSION_NOT_SUPPORTED, |
39 | MLXSW_EMAD_OP_TLV_STATUS_UNKNOWN_TLV, |
40 | MLXSW_EMAD_OP_TLV_STATUS_REGISTER_NOT_SUPPORTED, |
41 | MLXSW_EMAD_OP_TLV_STATUS_CLASS_NOT_SUPPORTED, |
42 | MLXSW_EMAD_OP_TLV_STATUS_METHOD_NOT_SUPPORTED, |
43 | MLXSW_EMAD_OP_TLV_STATUS_BAD_PARAMETER, |
44 | MLXSW_EMAD_OP_TLV_STATUS_RESOURCE_NOT_AVAILABLE, |
45 | MLXSW_EMAD_OP_TLV_STATUS_MESSAGE_RECEIPT_ACK, |
46 | MLXSW_EMAD_OP_TLV_STATUS_INTERNAL_ERROR = 0x70, |
47 | }; |
48 | |
49 | static inline char *mlxsw_emad_op_tlv_status_str(u8 status) |
50 | { |
51 | switch (status) { |
52 | case MLXSW_EMAD_OP_TLV_STATUS_SUCCESS: |
53 | return "operation performed" ; |
54 | case MLXSW_EMAD_OP_TLV_STATUS_BUSY: |
55 | return "device is busy" ; |
56 | case MLXSW_EMAD_OP_TLV_STATUS_VERSION_NOT_SUPPORTED: |
57 | return "version not supported" ; |
58 | case MLXSW_EMAD_OP_TLV_STATUS_UNKNOWN_TLV: |
59 | return "unknown TLV" ; |
60 | case MLXSW_EMAD_OP_TLV_STATUS_REGISTER_NOT_SUPPORTED: |
61 | return "register not supported" ; |
62 | case MLXSW_EMAD_OP_TLV_STATUS_CLASS_NOT_SUPPORTED: |
63 | return "class not supported" ; |
64 | case MLXSW_EMAD_OP_TLV_STATUS_METHOD_NOT_SUPPORTED: |
65 | return "method not supported" ; |
66 | case MLXSW_EMAD_OP_TLV_STATUS_BAD_PARAMETER: |
67 | return "bad parameter" ; |
68 | case MLXSW_EMAD_OP_TLV_STATUS_RESOURCE_NOT_AVAILABLE: |
69 | return "resource not available" ; |
70 | case MLXSW_EMAD_OP_TLV_STATUS_MESSAGE_RECEIPT_ACK: |
71 | return "acknowledged. retransmit" ; |
72 | case MLXSW_EMAD_OP_TLV_STATUS_INTERNAL_ERROR: |
73 | return "internal error" ; |
74 | default: |
75 | return "*UNKNOWN*" ; |
76 | } |
77 | } |
78 | |
79 | enum { |
80 | MLXSW_EMAD_OP_TLV_REQUEST, |
81 | MLXSW_EMAD_OP_TLV_RESPONSE |
82 | }; |
83 | |
84 | enum { |
85 | MLXSW_EMAD_OP_TLV_METHOD_QUERY = 1, |
86 | MLXSW_EMAD_OP_TLV_METHOD_WRITE = 2, |
87 | MLXSW_EMAD_OP_TLV_METHOD_SEND = 3, |
88 | MLXSW_EMAD_OP_TLV_METHOD_EVENT = 5, |
89 | }; |
90 | |
91 | /* STRING TLV */ |
92 | #define MLXSW_EMAD_STRING_TLV_LEN 33 /* Length in u32 */ |
93 | |
94 | /* LATENCY TLV */ |
95 | #define MLXSW_EMAD_LATENCY_TLV_LEN 7 /* Length in u32 */ |
96 | |
97 | /* END TLV */ |
98 | #define MLXSW_EMAD_END_TLV_LEN 1 /* Length in u32 */ |
99 | |
100 | #endif |
101 | |