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2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc

 kernel/Documentation/ABI/testing/sysfs-class-rapidio
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 		The /sys/class/rapidio_port subdirectory contains individual
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 		subdirectories named as "rapidioN" where N = mport ID registered
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 		with RapidIO subsystem.
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 		NOTE: An mport ID is not a RapidIO destination ID assigned to a
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 		given local mport device.
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 		Alexandre Bounine <alexandre.bounine@idt.com>
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 Description:
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 		(RO) reports RapidIO common transport system size:
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 		0 = small (8-bit destination ID, max. 256 devices),
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 		1 = large (16-bit destination ID, max. 65536 devices).
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 What:		/sys/class/rapidio_port/rapidioN/port_destid
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@@ -25,31 +28,32 @@
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 Contact:	Matt Porter <mporter@kernel.crashing.org>,
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 		Alexandre Bounine <alexandre.bounine@idt.com>
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 Description:
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-		(RO) reports RapidIO destination ID assigned to the given
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-		RapidIO mport device. If value 0xFFFFFFFF is returned this means
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-		that no valid destination ID have been assigned to the mport
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-		(yet). Normally, before enumeration/discovery have been executed
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-		only fabric enumerating mports have a valid destination ID
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-		assigned to them using "hdid=..." rapidio module parameter.
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+
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+(RO) reports RapidIO destination ID assigned to the given
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+RapidIO mport device. If value 0xFFFFFFFF is returned this means
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+that no valid destination ID have been assigned to the mport
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+(yet). Normally, before enumeration/discovery have been executed
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+only fabric enumerating mports have a valid destination ID
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+assigned to them using "hdid=..." rapidio module parameter.
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 After enumeration or discovery was performed for a given mport device,
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 the corresponding subdirectory will also contain subdirectories for each
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 child RapidIO device connected to the mport.
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 The example below shows mport device subdirectory with several child RapidIO
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-devices attached to it.
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+devices attached to it::
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-[rio@rapidio ~]$ ls /sys/class/rapidio_port/rapidio0/ -l
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-total 0
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-drwxr-xr-x 3 root root    0 Feb 11 15:10 00:e:0001
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-drwxr-xr-x 3 root root    0 Feb 11 15:10 00:e:0004
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-drwxr-xr-x 3 root root    0 Feb 11 15:10 00:e:0007
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-drwxr-xr-x 3 root root    0 Feb 11 15:10 00:s:0002
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-drwxr-xr-x 3 root root    0 Feb 11 15:10 00:s:0003
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-drwxr-xr-x 3 root root    0 Feb 11 15:10 00:s:0005
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-lrwxrwxrwx 1 root root    0 Feb 11 15:11 device -> ../../../0000:01:00.0
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--r--r--r-- 1 root root 4096 Feb 11 15:11 port_destid
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-drwxr-xr-x 2 root root    0 Feb 11 15:11 power
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-lrwxrwxrwx 1 root root    0 Feb 11 15:04 subsystem -> ../../../../../../class/rapidio_port
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--r--r--r-- 1 root root 4096 Feb 11 15:11 sys_size
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--rw-r--r-- 1 root root 4096 Feb 11 15:04 uevent
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+    [rio@rapidio ~]$ ls /sys/class/rapidio_port/rapidio0/ -l
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+    total 0
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+    drwxr-xr-x 3 root root    0 Feb 11 15:10 00:e:0001
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+    drwxr-xr-x 3 root root    0 Feb 11 15:10 00:e:0004
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+    drwxr-xr-x 3 root root    0 Feb 11 15:10 00:e:0007
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+    drwxr-xr-x 3 root root    0 Feb 11 15:10 00:s:0002
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+    drwxr-xr-x 3 root root    0 Feb 11 15:10 00:s:0003
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+    drwxr-xr-x 3 root root    0 Feb 11 15:10 00:s:0005
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+    lrwxrwxrwx 1 root root    0 Feb 11 15:11 device -> ../../../0000:01:00.0
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+    -r--r--r-- 1 root root 4096 Feb 11 15:11 port_destid
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+    drwxr-xr-x 2 root root    0 Feb 11 15:11 power
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+    lrwxrwxrwx 1 root root    0 Feb 11 15:04 subsystem -> ../../../../../../class/rapidio_port
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+    -r--r--r-- 1 root root 4096 Feb 11 15:11 sys_size
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+    -rw-r--r-- 1 root root 4096 Feb 11 15:04 uevent