60 lines
2.4 KiB
Plaintext
60 lines
2.4 KiB
Plaintext
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 <mporter@kernel.crashing.org>,
|
|
Alexandre Bounine <alexandre.bounine@idt.com>
|
|
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 <mporter@kernel.crashing.org>,
|
|
Alexandre Bounine <alexandre.bounine@idt.com>
|
|
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
|