Hi. On Saturday 13 May 2006 01:24, Steven Wooding wrote: > > > This leads me to another question I had about memory protection for RDMA > writes. What's the best way to stop the sender accidentally writing a larger > message than they should of, if I didn't want to use a different rkey for > each message (as setting up rkeys is expensive and too inflexible for my > application). > > Any thoughts?
If you create one large MR (and have only one rkey) you cannot give this key to a remote side and prevent him from writing to all of the MR, so maybe you should consider holding several MRs. In the IB spec there is a mechanism that should help you managing remote access in more flexible way, this mechanism called Memory Window, but the gen2 driver doesn't support MW (yet?). Dotan _______________________________________________ openib-general mailing list openib-general@openib.org http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
