1 What: /sys/bus/rapidio/devices/<nn>: 1 What: /sys/bus/rapidio/devices/<nn>:<d>:<iiii>
2 Description: 2 Description:
3 For each RapidIO device, the R 3 For each RapidIO device, the RapidIO subsystem creates files in
4 an individual subdirectory wit 4 an individual subdirectory with the following name format of
5 device_name "nn:d:iiii", where 5 device_name "nn:d:iiii", where:
6 6
7 ==== ======================= 7 ==== ========================================================
8 nn two-digit hexadecimal I 8 nn two-digit hexadecimal ID of RapidIO network where the
9 device resides 9 device resides
10 d device type: 'e' - for 10 d device type: 'e' - for endpoint or 's' - for switch
11 iiii four-digit device destI 11 iiii four-digit device destID for endpoints, or switchID for
12 switches 12 switches
13 ==== ======================= 13 ==== ========================================================
14 14
15 For example, below is a list o 15 For example, below is a list of device directories that
16 represents a typical RapidIO n 16 represents a typical RapidIO network with one switch, one host,
17 and two agent endpoints, as it 17 and two agent endpoints, as it is seen by the enumerating host
18 (with destID = 1):: 18 (with destID = 1)::
19 19
20 /sys/bus/rapidio/devices/00: 20 /sys/bus/rapidio/devices/00:e:0000
21 /sys/bus/rapidio/devices/00: 21 /sys/bus/rapidio/devices/00:e:0002
22 /sys/bus/rapidio/devices/00: 22 /sys/bus/rapidio/devices/00:s:0001
23 23
24 NOTE: 24 NOTE:
25 An enumerating or discoverin 25 An enumerating or discovering endpoint does not create a
26 sysfs entry for itself, this 26 sysfs entry for itself, this is why an endpoint with destID=1
27 is not shown in the list. 27 is not shown in the list.
28 28
29 Attributes Common for All RapidIO Devices 29 Attributes Common for All RapidIO Devices
30 ----------------------------------------- 30 -----------------------------------------
31 31
32 What: /sys/bus/rapidio/devices/<nn>: 32 What: /sys/bus/rapidio/devices/<nn>:<d>:<iiii>/did
33 Date: Nov, 2005 33 Date: Nov, 2005
34 KernelVersion: v2.6.15 34 KernelVersion: v2.6.15
35 Contact: Matt Porter <mporter@kernel.cra 35 Contact: Matt Porter <mporter@kernel.crashing.org>,
36 Alexandre Bounine <alexandre.bo 36 Alexandre Bounine <alexandre.bounine@idt.com>
37 Description: 37 Description:
38 (RO) returns the device identi 38 (RO) returns the device identifier
39 39
40 What: /sys/bus/rapidio/devices/<nn>: 40 What: /sys/bus/rapidio/devices/<nn>:<d>:<iiii>/vid
41 Date: Nov, 2005 41 Date: Nov, 2005
42 KernelVersion: v2.6.15 42 KernelVersion: v2.6.15
43 Contact: Matt Porter <mporter@kernel.cra 43 Contact: Matt Porter <mporter@kernel.crashing.org>,
44 Alexandre Bounine <alexandre.bo 44 Alexandre Bounine <alexandre.bounine@idt.com>
45 Description: 45 Description:
46 (RO) returns the device vendor 46 (RO) returns the device vendor identifier
47 47
48 What: /sys/bus/rapidio/devices/<nn>: 48 What: /sys/bus/rapidio/devices/<nn>:<d>:<iiii>/device_rev
49 Date: Nov, 2005 49 Date: Nov, 2005
50 KernelVersion: v2.6.15 50 KernelVersion: v2.6.15
51 Contact: Matt Porter <mporter@kernel.cra 51 Contact: Matt Porter <mporter@kernel.crashing.org>,
52 Alexandre Bounine <alexandre.bo 52 Alexandre Bounine <alexandre.bounine@idt.com>
53 Description: 53 Description:
54 (RO) returns the device revisi 54 (RO) returns the device revision level
55 55
56 What: /sys/bus/rapidio/devices/<nn>: 56 What: /sys/bus/rapidio/devices/<nn>:<d>:<iiii>/asm_did
57 Date: Nov, 2005 57 Date: Nov, 2005
58 KernelVersion: v2.6.15 58 KernelVersion: v2.6.15
59 Contact: Matt Porter <mporter@kernel.cra 59 Contact: Matt Porter <mporter@kernel.crashing.org>,
60 Alexandre Bounine <alexandre.bo 60 Alexandre Bounine <alexandre.bounine@idt.com>
61 Description: 61 Description:
62 (RO) returns identifier for th 62 (RO) returns identifier for the assembly containing the device
63 63
64 What: /sys/bus/rapidio/devices/<nn>: 64 What: /sys/bus/rapidio/devices/<nn>:<d>:<iiii>/asm_rev
65 Date: Nov, 2005 65 Date: Nov, 2005
66 KernelVersion: v2.6.15 66 KernelVersion: v2.6.15
67 Contact: Matt Porter <mporter@kernel.cra 67 Contact: Matt Porter <mporter@kernel.crashing.org>,
68 Alexandre Bounine <alexandre.bo 68 Alexandre Bounine <alexandre.bounine@idt.com>
69 Description: 69 Description:
70 (RO) returns revision level of 70 (RO) returns revision level of the assembly containing the
71 device 71 device
72 72
73 What: /sys/bus/rapidio/devices/<nn>: 73 What: /sys/bus/rapidio/devices/<nn>:<d>:<iiii>/asm_vid
74 Date: Nov, 2005 74 Date: Nov, 2005
75 KernelVersion: v2.6.15 75 KernelVersion: v2.6.15
76 Contact: Matt Porter <mporter@kernel.cra 76 Contact: Matt Porter <mporter@kernel.crashing.org>,
77 Alexandre Bounine <alexandre.bo 77 Alexandre Bounine <alexandre.bounine@idt.com>
78 Description: 78 Description:
79 (RO) returns vendor identifier 79 (RO) returns vendor identifier of the assembly containing the
80 device 80 device
81 81
82 What: /sys/bus/rapidio/devices/<nn>: 82 What: /sys/bus/rapidio/devices/<nn>:<d>:<iiii>/destid
83 Date: Mar, 2011 83 Date: Mar, 2011
84 KernelVersion: v2.6.3 84 KernelVersion: v2.6.3
85 Contact: Matt Porter <mporter@kernel.cra 85 Contact: Matt Porter <mporter@kernel.crashing.org>,
86 Alexandre Bounine <alexandre.bo 86 Alexandre Bounine <alexandre.bounine@idt.com>
87 Description: 87 Description:
88 (RO) returns device destinatio 88 (RO) returns device destination ID assigned by the enumeration
89 routine 89 routine
90 90
91 What: /sys/bus/rapidio/devices/<nn>: 91 What: /sys/bus/rapidio/devices/<nn>:<d>:<iiii>/lprev
92 Date: Mar, 2011 92 Date: Mar, 2011
93 KernelVersion: v2.6.39 93 KernelVersion: v2.6.39
94 Contact: Matt Porter <mporter@kernel.cra 94 Contact: Matt Porter <mporter@kernel.crashing.org>,
95 Alexandre Bounine <alexandre.bo 95 Alexandre Bounine <alexandre.bounine@idt.com>
96 Description: 96 Description:
97 (RO) returns name of previous 97 (RO) returns name of previous device (switch) on the path to the
98 device that that owns this att 98 device that that owns this attribute
99 99
100 What: /sys/bus/rapidio/devices/<nn>: 100 What: /sys/bus/rapidio/devices/<nn>:<d>:<iiii>/modalias
101 Date: Jul, 2013 101 Date: Jul, 2013
102 KernelVersion: v3.11 102 KernelVersion: v3.11
103 Contact: Matt Porter <mporter@kernel.cra 103 Contact: Matt Porter <mporter@kernel.crashing.org>,
104 Alexandre Bounine <alexandre.bo 104 Alexandre Bounine <alexandre.bounine@idt.com>
105 Description: 105 Description:
106 (RO) returns the device modali 106 (RO) returns the device modalias
107 107
108 What: /sys/bus/rapidio/devices/<nn>: 108 What: /sys/bus/rapidio/devices/<nn>:<d>:<iiii>/config
109 Date: Nov, 2005 109 Date: Nov, 2005
110 KernelVersion: v2.6.15 110 KernelVersion: v2.6.15
111 Contact: Matt Porter <mporter@kernel.cra 111 Contact: Matt Porter <mporter@kernel.crashing.org>,
112 Alexandre Bounine <alexandre.bo 112 Alexandre Bounine <alexandre.bounine@idt.com>
113 Description: 113 Description:
114 (RW) Binary attribute to read 114 (RW) Binary attribute to read from and write to the device
115 configuration registers using 115 configuration registers using the RapidIO maintenance
116 transactions. This attribute i 116 transactions. This attribute is similar in behaviour to the
117 "config" attribute of PCI devi 117 "config" attribute of PCI devices and provides an access to the
118 RapidIO device registers using 118 RapidIO device registers using standard file read and write
119 operations. 119 operations.
120 120
121 RapidIO Switch Device Attributes 121 RapidIO Switch Device Attributes
122 -------------------------------- 122 --------------------------------
123 123
124 RapidIO switches have additional attributes in 124 RapidIO switches have additional attributes in sysfs. RapidIO subsystem supports
125 common and device-specific sysfs attributes fo 125 common and device-specific sysfs attributes for switches. Because switches are
126 integrated into the RapidIO subsystem, it offe 126 integrated into the RapidIO subsystem, it offers a method to create
127 device-specific sysfs attributes by specifying 127 device-specific sysfs attributes by specifying a callback function that may be
128 set by the switch initialization routine durin 128 set by the switch initialization routine during enumeration or discovery
129 process. 129 process.
130 130
131 What: /sys/bus/rapidio/devices/<nn>: 131 What: /sys/bus/rapidio/devices/<nn>:<s>:<iiii>/routes
132 Date: Nov, 2005 132 Date: Nov, 2005
133 KernelVersion: v2.6.15 133 KernelVersion: v2.6.15
134 Contact: Matt Porter <mporter@kernel.cra 134 Contact: Matt Porter <mporter@kernel.crashing.org>,
135 Alexandre Bounine <alexandre.bo 135 Alexandre Bounine <alexandre.bounine@idt.com>
136 Description: 136 Description:
137 (RO) reports switch routing in 137 (RO) reports switch routing information in "destID port" format.
138 This attribute reports only va 138 This attribute reports only valid routing table entries, one
139 line for each entry. 139 line for each entry.
140 140
141 What: /sys/bus/rapidio/devices/<nn>: 141 What: /sys/bus/rapidio/devices/<nn>:<s>:<iiii>/destid
142 Date: Mar, 2011 142 Date: Mar, 2011
143 KernelVersion: v2.6.3 143 KernelVersion: v2.6.3
144 Contact: Matt Porter <mporter@kernel.cra 144 Contact: Matt Porter <mporter@kernel.crashing.org>,
145 Alexandre Bounine <alexandre.bo 145 Alexandre Bounine <alexandre.bounine@idt.com>
146 Description: 146 Description:
147 (RO) device destination ID of 147 (RO) device destination ID of the associated device that defines
148 a route to the switch 148 a route to the switch
149 149
150 What: /sys/bus/rapidio/devices/<nn>: 150 What: /sys/bus/rapidio/devices/<nn>:<s>:<iiii>/hopcount
151 Date: Mar, 2011 151 Date: Mar, 2011
152 KernelVersion: v2.6.39 152 KernelVersion: v2.6.39
153 Contact: Matt Porter <mporter@kernel.cra 153 Contact: Matt Porter <mporter@kernel.crashing.org>,
154 Alexandre Bounine <alexandre.bo 154 Alexandre Bounine <alexandre.bounine@idt.com>
155 Description: 155 Description:
156 (RO) number of hops on the pat 156 (RO) number of hops on the path to the switch
157 157
158 What: /sys/bus/rapidio/devices/<nn>: 158 What: /sys/bus/rapidio/devices/<nn>:<s>:<iiii>/lnext
159 Date: Mar, 2011 159 Date: Mar, 2011
160 KernelVersion: v2.6.39 160 KernelVersion: v2.6.39
161 Contact: Matt Porter <mporter@kernel.cra 161 Contact: Matt Porter <mporter@kernel.crashing.org>,
162 Alexandre Bounine <alexandre.bo 162 Alexandre Bounine <alexandre.bounine@idt.com>
163 Description: 163 Description:
164 (RO) returns names of devices 164 (RO) returns names of devices linked to the switch except one of
165 a device linked to the ingress 165 a device linked to the ingress port (reported as "lprev"). This
166 is an array names with number 166 is an array names with number of lines equal to number of ports
167 in switch. If a switch port ha 167 in switch. If a switch port has no attached device, returns
168 "null" instead of a device nam 168 "null" instead of a device name.
169 169
170 Device-specific Switch Attributes 170 Device-specific Switch Attributes
171 --------------------------------- 171 ---------------------------------
172 172
173 IDT_GEN2- 173 IDT_GEN2-
174 174
175 What: /sys/bus/rapidio/devices/<nn>: 175 What: /sys/bus/rapidio/devices/<nn>:<s>:<iiii>/errlog
176 Date: Oct, 2010 176 Date: Oct, 2010
177 KernelVersion: v2.6.37 177 KernelVersion: v2.6.37
178 Contact: Matt Porter <mporter@kernel.cra 178 Contact: Matt Porter <mporter@kernel.crashing.org>,
179 Alexandre Bounine <alexandre.bo 179 Alexandre Bounine <alexandre.bounine@idt.com>
180 Description: 180 Description:
181 (RO) reads contents of device 181 (RO) reads contents of device error log until it is empty.
182 182
183 RapidIO Bus Attributes 183 RapidIO Bus Attributes
184 ---------------------- 184 ----------------------
185 185
186 What: /sys/bus/rapidio/scan 186 What: /sys/bus/rapidio/scan
187 Date: May, 2013 187 Date: May, 2013
188 KernelVersion: v3.11 188 KernelVersion: v3.11
189 Contact: Matt Porter <mporter@kernel.cra 189 Contact: Matt Porter <mporter@kernel.crashing.org>,
190 Alexandre Bounine <alexandre.bo 190 Alexandre Bounine <alexandre.bounine@idt.com>
191 Description: 191 Description:
192 (WO) Allows to trigger enumera 192 (WO) Allows to trigger enumeration discovery process from user
193 space. To initiate an enumerat 193 space. To initiate an enumeration or discovery process on
194 specific mport device, a user 194 specific mport device, a user needs to write mport_ID (not
195 RapidIO destination ID) into t 195 RapidIO destination ID) into this file. The mport_ID is a
196 sequential number (0 ... RIO_ 196 sequential number (0 ... RIO_MAX_MPORTS) assigned to the mport
197 device. For example, for a mac 197 device. For example, for a machine with a single RapidIO
198 controller, mport_ID for that 198 controller, mport_ID for that controller always will be 0. To
199 initiate RapidIO enumeration/d 199 initiate RapidIO enumeration/discovery on all available mports a
200 user must write '-1' (or RIO_M 200 user must write '-1' (or RIO_MPORT_ANY) into this attribute
201 file. 201 file.
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