On Tue, Jun 28, 2022 at 06:21:09PM +0200, haris iqbal wrote: > > Yes, no driver in Linux suports a disjoint key space. > > If disjoint key space is not supported in Linux; does this mean > irrespective of whether an MR is registered (IB_WR_REG_MR) for LOCAL > or REMOTE access, both rkey and lkey should be set? No.. It means given any key the driver can always tell if it is a rkey or a lkey. There is never any aliasing of key values. Thus the API often doesn't have a away to tell if the given key is an rkey or lkey. > PS: This discussion started in the following thread, > https://marc.info/?l=linux-rdma&m=165390868832428&w=2 rxe is incorrect to not accept the lkey presented on the invalidate_rkey input. invalidate_rkey is misnamed. Jason
