[Scst-devel] How to tell physical port from NPIV port

[Rob T. <ro...@rt...>]

Another step forward..

My QLA2562 connects to a Brocade 300 SAN switch with fabric licenses. 
The QLogic adapter shows up under the 
/sys/kernel/scst_tgt/targets/qla20xxt tree with its two wwn's as expected.

I created three scst_user devices and assigned these to three separate 
NPIV vports, using one of the qlogic parent ports and that worked well. 
Now I have 5 wwn's listed in the qla2x00t directory tree. I can enable 
them just fine.

Question; I'd like to auto-spread vports across all available physical 
ports. How can I tell physical ports and vports apart once they are 
created? Is there any readable flag in this tree that will indicate if 
I'm dealing with a physical port entry or a vport? Best I could find is 
the 'wwn'/host symbolic link which contains ' vport'  in the pathname, 
but I'd prefer a more elegant way?

Thanks,
Rob