| 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/rapidioN/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/rapidioN/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 |