Re: [PATCH] IB/core: Make ib_mad_client_id atomic

[Jason Gunthorpe]

On Mon, Apr 23, 2018 at 10:16:18PM +0300, jackm wrote:

> > > TIDs need to be globally unique on the entire machine.  

> Jason, that is not exactly correct.

The expecation for /dev/umad users is that they all receive locally
unique TID prefixes. The kernel may be OK to keep things port-specific
but it is slightly breaking the API we are presenting to userspace to
allow them to alias..

Jason