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 10 NOTE: An mport ID is not a RapidIO destination ID assigned to a 11 given local mport device. 12 13What: /sys/class/rapidio_port/rapidio<N>/sys_size 14Date: Apr, 2014 15KernelVersion: v3.15 16Contact: Matt Porter <mporter@kernel.crashing.org>, 17 Alexandre Bounine <alexandre.bounine@idt.com> 18Description: 19 (RO) reports RapidIO common transport system size: 20 21 0 = small (8-bit destination ID, max. 256 devices), 22 23 1 = large (16-bit destination ID, max. 65536 devices). 24 25What: /sys/class/rapidio_port/rapidio<N>/port_destid 26Date: Apr, 2014 27KernelVersion: v3.15 28Contact: Matt Porter <mporter@kernel.crashing.org>, 29 Alexandre Bounine <alexandre.bounine@idt.com> 30Description: 31 32(RO) reports RapidIO destination ID assigned to the given 33RapidIO mport device. If value 0xFFFFFFFF is returned this means 34that no valid destination ID have been assigned to the mport 35(yet). Normally, before enumeration/discovery have been executed 36only fabric enumerating mports have a valid destination ID 37assigned to them using "hdid=..." rapidio module parameter. 38 39After enumeration or discovery was performed for a given mport device, 40the corresponding subdirectory will also contain subdirectories for each 41child RapidIO device connected to the mport. 42 43The example below shows mport device subdirectory with several child RapidIO 44devices attached to it:: 45 46 [rio@rapidio ~]$ ls /sys/class/rapidio_port/rapidio0/ -l 47 total 0 48 drwxr-xr-x 3 root root 0 Feb 11 15:10 00:e:0001 49 drwxr-xr-x 3 root root 0 Feb 11 15:10 00:e:0004 50 drwxr-xr-x 3 root root 0 Feb 11 15:10 00:e:0007 51 drwxr-xr-x 3 root root 0 Feb 11 15:10 00:s:0002 52 drwxr-xr-x 3 root root 0 Feb 11 15:10 00:s:0003 53 drwxr-xr-x 3 root root 0 Feb 11 15:10 00:s:0005 54 lrwxrwxrwx 1 root root 0 Feb 11 15:11 device -> ../../../0000:01:00.0 55 -r--r--r-- 1 root root 4096 Feb 11 15:11 port_destid 56 drwxr-xr-x 2 root root 0 Feb 11 15:11 power 57 lrwxrwxrwx 1 root root 0 Feb 11 15:04 subsystem -> ../../../../../../class/rapidio_port 58 -r--r--r-- 1 root root 4096 Feb 11 15:11 sys_size 59 -rw-r--r-- 1 root root 4096 Feb 11 15:04 uevent 60