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Vadim Pasternakbe4fdf92016-09-08 07:25:53 +00001Kernel driver for Mellanox systems LEDs
2=======================================
3
4Provide system LED support for the nex Mellanox systems:
5"msx6710", "msx6720", "msb7700", "msn2700", "msx1410",
6"msn2410", "msb7800", "msn2740", "msn2100".
7
8Description
9-----------
10Driver provides the following LEDs for the systems "msx6710", "msx6720",
11"msb7700", "msn2700", "msx1410", "msn2410", "msb7800", "msn2740":
12 mlxcpld:fan1:green
13 mlxcpld:fan1:red
14 mlxcpld:fan2:green
15 mlxcpld:fan2:red
16 mlxcpld:fan3:green
17 mlxcpld:fan3:red
18 mlxcpld:fan4:green
19 mlxcpld:fan4:red
20 mlxcpld:psu:green
21 mlxcpld:psu:red
22 mlxcpld:status:green
23 mlxcpld:status:red
24
25 "status"
26 CPLD reg offset: 0x20
27 Bits [3:0]
28
29 "psu"
30 CPLD reg offset: 0x20
31 Bits [7:4]
32
33 "fan1"
34 CPLD reg offset: 0x21
35 Bits [3:0]
36
37 "fan2"
38 CPLD reg offset: 0x21
39 Bits [7:4]
40
41 "fan3"
42 CPLD reg offset: 0x22
43 Bits [3:0]
44
45 "fan4"
46 CPLD reg offset: 0x22
47 Bits [7:4]
48
49 Color mask for all the above LEDs:
50 [bit3,bit2,bit1,bit0] or
51 [bit7,bit6,bit5,bit4]:
52 [0,0,0,0] = LED OFF
53 [0,1,0,1] = Red static ON
54 [1,1,0,1] = Green static ON
55 [0,1,1,0] = Red blink 3Hz
56 [1,1,1,0] = Green blink 3Hz
57 [0,1,1,1] = Red blink 6Hz
58 [1,1,1,1] = Green blink 6Hz
59
60Driver provides the following LEDs for the system "msn2100":
61 mlxcpld:fan:green
62 mlxcpld:fan:red
63 mlxcpld:psu1:green
64 mlxcpld:psu1:red
65 mlxcpld:psu2:green
66 mlxcpld:psu2:red
67 mlxcpld:status:green
68 mlxcpld:status:red
69 mlxcpld:uid:blue
70
71 "status"
72 CPLD reg offset: 0x20
73 Bits [3:0]
74
75 "fan"
76 CPLD reg offset: 0x21
77 Bits [3:0]
78
79 "psu1"
80 CPLD reg offset: 0x23
81 Bits [3:0]
82
83 "psu2"
84 CPLD reg offset: 0x23
85 Bits [7:4]
86
87 "uid"
88 CPLD reg offset: 0x24
89 Bits [3:0]
90
91 Color mask for all the above LEDs, excepted uid:
92 [bit3,bit2,bit1,bit0] or
93 [bit7,bit6,bit5,bit4]:
94 [0,0,0,0] = LED OFF
95 [0,1,0,1] = Red static ON
96 [1,1,0,1] = Green static ON
97 [0,1,1,0] = Red blink 3Hz
98 [1,1,1,0] = Green blink 3Hz
99 [0,1,1,1] = Red blink 6Hz
100 [1,1,1,1] = Green blink 6Hz
101
102 Color mask for uid LED:
103 [bit3,bit2,bit1,bit0]:
104 [0,0,0,0] = LED OFF
105 [1,1,0,1] = Blue static ON
106 [1,1,1,0] = Blue blink 3Hz
107 [1,1,1,1] = Blue blink 6Hz
108
109Driver supports HW blinking at 3Hz and 6Hz frequency (50% duty cycle).
110For 3Hz duty cylce is about 167 msec, for 6Hz is about 83 msec.