On Friday, 07/11/2008 at 02:32 EDT, "McKown, John" <[EMAIL PROTECTED]> wrote: > Doesn't a CTC connection require the even/odd address for send/receive?
No. It requires n and n+1. And even that is just an artifact of the device driver. There's nothing special about adjacent subchannels on a CTC. Your IOCP could even configure device number n and n+1 on different CTC chpids. It just doesn't matter... This "even" thing with OSAs and HiperSockets is the vestigal memory of the original OSA-1s that required the control path to be on an even address. I think that was lifted in the OSA-2 and was definitely gone by the time OSA-Express appeared. It ranks right up there with PORTNAMEs. They have been optional on z/VM and Linux for several years, yet I keep finding NEW configurations that have them coded and people saying "they have to match", which they do, but ONLY IF YOU CODE THEM! Alan Altmark z/VM Development IBM Endicott
