Based on kernel version 6.8. Page generated on 2024-03-11 21:26 EST.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 | What: /sys/bus/rapidio/devices/<nn>:<d>:<iiii> Description: For each RapidIO device, the RapidIO subsystem creates files in an individual subdirectory with the following name format of device_name "nn:d:iiii", where: ==== ======================================================== nn two-digit hexadecimal ID of RapidIO network where the device resides d device type: 'e' - for endpoint or 's' - for switch iiii four-digit device destID for endpoints, or switchID for switches ==== ======================================================== For example, below is a list of device directories that represents a typical RapidIO network with one switch, one host, and two agent endpoints, as it is seen by the enumerating host (with destID = 1):: /sys/bus/rapidio/devices/00:e:0000 /sys/bus/rapidio/devices/00:e:0002 /sys/bus/rapidio/devices/00:s:0001 NOTE: An enumerating or discovering endpoint does not create a sysfs entry for itself, this is why an endpoint with destID=1 is not shown in the list. Attributes Common for All RapidIO Devices ----------------------------------------- What: /sys/bus/rapidio/devices/<nn>:<d>:<iiii>/did Date: Nov, 2005 KernelVersion: v2.6.15 Contact: Matt Porter <mporter@kernel.crashing.org>, Alexandre Bounine <alexandre.bounine@idt.com> Description: (RO) returns the device identifier What: /sys/bus/rapidio/devices/<nn>:<d>:<iiii>/vid Date: Nov, 2005 KernelVersion: v2.6.15 Contact: Matt Porter <mporter@kernel.crashing.org>, Alexandre Bounine <alexandre.bounine@idt.com> Description: (RO) returns the device vendor identifier What: /sys/bus/rapidio/devices/<nn>:<d>:<iiii>/device_rev Date: Nov, 2005 KernelVersion: v2.6.15 Contact: Matt Porter <mporter@kernel.crashing.org>, Alexandre Bounine <alexandre.bounine@idt.com> Description: (RO) returns the device revision level What: /sys/bus/rapidio/devices/<nn>:<d>:<iiii>/asm_did Date: Nov, 2005 KernelVersion: v2.6.15 Contact: Matt Porter <mporter@kernel.crashing.org>, Alexandre Bounine <alexandre.bounine@idt.com> Description: (RO) returns identifier for the assembly containing the device What: /sys/bus/rapidio/devices/<nn>:<d>:<iiii>/asm_rev Date: Nov, 2005 KernelVersion: v2.6.15 Contact: Matt Porter <mporter@kernel.crashing.org>, Alexandre Bounine <alexandre.bounine@idt.com> Description: (RO) returns revision level of the assembly containing the device What: /sys/bus/rapidio/devices/<nn>:<d>:<iiii>/asm_vid Date: Nov, 2005 KernelVersion: v2.6.15 Contact: Matt Porter <mporter@kernel.crashing.org>, Alexandre Bounine <alexandre.bounine@idt.com> Description: (RO) returns vendor identifier of the assembly containing the device What: /sys/bus/rapidio/devices/<nn>:<d>:<iiii>/destid Date: Mar, 2011 KernelVersion: v2.6.3 Contact: Matt Porter <mporter@kernel.crashing.org>, Alexandre Bounine <alexandre.bounine@idt.com> Description: (RO) returns device destination ID assigned by the enumeration routine What: /sys/bus/rapidio/devices/<nn>:<d>:<iiii>/lprev Date: Mar, 2011 KernelVersion: v2.6.39 Contact: Matt Porter <mporter@kernel.crashing.org>, Alexandre Bounine <alexandre.bounine@idt.com> Description: (RO) returns name of previous device (switch) on the path to the device that that owns this attribute What: /sys/bus/rapidio/devices/<nn>:<d>:<iiii>/modalias Date: Jul, 2013 KernelVersion: v3.11 Contact: Matt Porter <mporter@kernel.crashing.org>, Alexandre Bounine <alexandre.bounine@idt.com> Description: (RO) returns the device modalias What: /sys/bus/rapidio/devices/<nn>:<d>:<iiii>/config Date: Nov, 2005 KernelVersion: v2.6.15 Contact: Matt Porter <mporter@kernel.crashing.org>, Alexandre Bounine <alexandre.bounine@idt.com> Description: (RW) Binary attribute to read from and write to the device configuration registers using the RapidIO maintenance transactions. This attribute is similar in behaviour to the "config" attribute of PCI devices and provides an access to the RapidIO device registers using standard file read and write operations. RapidIO Switch Device Attributes -------------------------------- RapidIO switches have additional attributes in sysfs. RapidIO subsystem supports common and device-specific sysfs attributes for switches. Because switches are integrated into the RapidIO subsystem, it offers a method to create device-specific sysfs attributes by specifying a callback function that may be set by the switch initialization routine during enumeration or discovery process. What: /sys/bus/rapidio/devices/<nn>:<s>:<iiii>/routes Date: Nov, 2005 KernelVersion: v2.6.15 Contact: Matt Porter <mporter@kernel.crashing.org>, Alexandre Bounine <alexandre.bounine@idt.com> Description: (RO) reports switch routing information in "destID port" format. This attribute reports only valid routing table entries, one line for each entry. What: /sys/bus/rapidio/devices/<nn>:<s>:<iiii>/destid Date: Mar, 2011 KernelVersion: v2.6.3 Contact: Matt Porter <mporter@kernel.crashing.org>, Alexandre Bounine <alexandre.bounine@idt.com> Description: (RO) device destination ID of the associated device that defines a route to the switch What: /sys/bus/rapidio/devices/<nn>:<s>:<iiii>/hopcount Date: Mar, 2011 KernelVersion: v2.6.39 Contact: Matt Porter <mporter@kernel.crashing.org>, Alexandre Bounine <alexandre.bounine@idt.com> Description: (RO) number of hops on the path to the switch What: /sys/bus/rapidio/devices/<nn>:<s>:<iiii>/lnext Date: Mar, 2011 KernelVersion: v2.6.39 Contact: Matt Porter <mporter@kernel.crashing.org>, Alexandre Bounine <alexandre.bounine@idt.com> Description: (RO) returns names of devices linked to the switch except one of a device linked to the ingress port (reported as "lprev"). This is an array names with number of lines equal to number of ports in switch. If a switch port has no attached device, returns "null" instead of a device name. Device-specific Switch Attributes --------------------------------- IDT_GEN2- What: /sys/bus/rapidio/devices/<nn>:<s>:<iiii>/errlog Date: Oct, 2010 KernelVersion: v2.6.37 Contact: Matt Porter <mporter@kernel.crashing.org>, Alexandre Bounine <alexandre.bounine@idt.com> Description: (RO) reads contents of device error log until it is empty. RapidIO Bus Attributes ---------------------- What: /sys/bus/rapidio/scan Date: May, 2013 KernelVersion: v3.11 Contact: Matt Porter <mporter@kernel.crashing.org>, Alexandre Bounine <alexandre.bounine@idt.com> Description: (WO) Allows to trigger enumeration discovery process from user space. To initiate an enumeration or discovery process on specific mport device, a user needs to write mport_ID (not RapidIO destination ID) into this file. The mport_ID is a sequential number (0 ... RIO_MAX_MPORTS) assigned to the mport device. For example, for a machine with a single RapidIO controller, mport_ID for that controller always will be 0. To initiate RapidIO enumeration/discovery on all available mports a user must write '-1' (or RIO_MPORT_ANY) into this attribute file. |