[openib-general] Re: device add/remove in userspace

[Sean Hefty]

Roland Dreier wrote:
>     Sean> Is there a way for a userspace application to know if a
>     Sean> device has been added or removed?
> 
> We don't really handle this right now.  It could probably be made to
> work on top of hotplug/udev/hal/something but it seems tricky to me.

At this point, I'm still trying to decide if the userspace CMA should talk to 
the userspace CM or kernel CMA, so I'm not sure what's needed yet.

How difficult would it be to support a call such as ibv_open_device_by_guid() or 
ibv_open_device_by_name()?

- Sean