1What: /sys/class/rapidio_port 2Description: 3 On-chip RapidIO controllers and PCIe-to-RapidIO bridges 4 (referenced as "Master Port" or "mport") are presented in sysfs 5 as the special class of devices: "rapidio_port". 6 The /sys/class/rapidio_port subdirectory contains individual 7 subdirectories named as "rapidioN" where N = mport ID registered 8 with RapidIO subsystem. 9 NOTE: An mport ID is not a RapidIO destination ID assigned to a 10 given local mport device. 11 12What: /sys/class/rapidio_port/rapidioN/sys_size 13Date: Apr, 2014 14KernelVersion: v3.15 15Contact: Matt Porter <mporter@kernel.crashing.org>, 16 Alexandre Bounine <alexandre.bounine@idt.com> 17Description: 18 (RO) reports RapidIO common transport system size: 19 0 = small (8-bit destination ID, max. 256 devices), 20 1 = large (16-bit destination ID, max. 65536 devices). 21 22What: /sys/class/rapidio_port/rapidioN/port_destid 23Date: Apr, 2014 24KernelVersion: v3.15 25Contact: Matt Porter <mporter@kernel.crashing.org>, 26 Alexandre Bounine <alexandre.bounine@idt.com> 27Description: 28 (RO) reports RapidIO destination ID assigned to the given 29 RapidIO mport device. If value 0xFFFFFFFF is returned this means 30 that no valid destination ID have been assigned to the mport 31 (yet). Normally, before enumeration/discovery have been executed 32 only fabric enumerating mports have a valid destination ID 33 assigned to them using "hdid=..." rapidio module parameter. 34 35After enumeration or discovery was performed for a given mport device, 36the corresponding subdirectory will also contain subdirectories for each 37child RapidIO device connected to the mport. 38 39The example below shows mport device subdirectory with several child RapidIO 40devices attached to it. 41 42[rio@rapidio ~]$ ls /sys/class/rapidio_port/rapidio0/ -l 43total 0 44drwxr-xr-x 3 root root 0 Feb 11 15:10 00:e:0001 45drwxr-xr-x 3 root root 0 Feb 11 15:10 00:e:0004 46drwxr-xr-x 3 root root 0 Feb 11 15:10 00:e:0007 47drwxr-xr-x 3 root root 0 Feb 11 15:10 00:s:0002 48drwxr-xr-x 3 root root 0 Feb 11 15:10 00:s:0003 49drwxr-xr-x 3 root root 0 Feb 11 15:10 00:s:0005 50lrwxrwxrwx 1 root root 0 Feb 11 15:11 device -> ../../../0000:01:00.0 51-r--r--r-- 1 root root 4096 Feb 11 15:11 port_destid 52drwxr-xr-x 2 root root 0 Feb 11 15:11 power 53lrwxrwxrwx 1 root root 0 Feb 11 15:04 subsystem -> ../../../../../../class/rapidio_port 54-r--r--r-- 1 root root 4096 Feb 11 15:11 sys_size 55-rw-r--r-- 1 root root 4096 Feb 11 15:04 uevent 56