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- What: /sys/class/rapidio_port
- Description:
- On-chip RapidIO controllers and PCIe-to-RapidIO bridges
- (referenced as "Master Port" or "mport") are presented in sysfs
- as the special class of devices: "rapidio_port".
- The /sys/class/rapidio_port subdirectory contains individual
- subdirectories named as "rapidioN" where N = mport ID registered
- with RapidIO subsystem.
- NOTE: An mport ID is not a RapidIO destination ID assigned to a
- given local mport device.
- What: /sys/class/rapidio_port/rapidio<N>/sys_size
- Date: Apr, 2014
- KernelVersion: v3.15
- Contact: Matt Porter <[email protected]>,
- Alexandre Bounine <[email protected]>
- Description:
- (RO) reports RapidIO common transport system size:
- 0 = small (8-bit destination ID, max. 256 devices),
- 1 = large (16-bit destination ID, max. 65536 devices).
- What: /sys/class/rapidio_port/rapidio<N>/port_destid
- Date: Apr, 2014
- KernelVersion: v3.15
- Contact: Matt Porter <[email protected]>,
- Alexandre Bounine <[email protected]>
- Description:
- (RO) reports RapidIO destination ID assigned to the given
- RapidIO mport device. If value 0xFFFFFFFF is returned this means
- that no valid destination ID have been assigned to the mport
- (yet). Normally, before enumeration/discovery have been executed
- only fabric enumerating mports have a valid destination ID
- assigned to them using "hdid=..." rapidio module parameter.
- After enumeration or discovery was performed for a given mport device,
- the corresponding subdirectory will also contain subdirectories for each
- child RapidIO device connected to the mport.
- The example below shows mport device subdirectory with several child RapidIO
- devices attached to it::
- [rio@rapidio ~]$ ls /sys/class/rapidio_port/rapidio0/ -l
- total 0
- drwxr-xr-x 3 root root 0 Feb 11 15:10 00:e:0001
- drwxr-xr-x 3 root root 0 Feb 11 15:10 00:e:0004
- drwxr-xr-x 3 root root 0 Feb 11 15:10 00:e:0007
- drwxr-xr-x 3 root root 0 Feb 11 15:10 00:s:0002
- drwxr-xr-x 3 root root 0 Feb 11 15:10 00:s:0003
- drwxr-xr-x 3 root root 0 Feb 11 15:10 00:s:0005
- lrwxrwxrwx 1 root root 0 Feb 11 15:11 device -> ../../../0000:01:00.0
- -r--r--r-- 1 root root 4096 Feb 11 15:11 port_destid
- drwxr-xr-x 2 root root 0 Feb 11 15:11 power
- lrwxrwxrwx 1 root root 0 Feb 11 15:04 subsystem -> ../../../../../../class/rapidio_port
- -r--r--r-- 1 root root 4096 Feb 11 15:11 sys_size
- -rw-r--r-- 1 root root 4096 Feb 11 15:04 uevent
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