roland> James> It is my understanding that the current MTHCA driver does roland> James> not support InfiniBand memory windows or memory roland> James> registration using virtual addresses. roland> roland> James> Is this information correct? If so, when will these roland> James> features be supported? roland> roland> Well, memory registration is pretty complete. By design, we only roland> support memory registration with physical addresses for kernel roland> consumers even at the verbs API level (ie there are no mthca-specific roland> limitations). In the kernel, registration by virtual address is not roland> very useful. For userspace verbs, only registration by virtual roland> address is supported for obvious reasons. roland> roland> Memory windows are not implemented for mthca. It wouldn't be a lot of roland> work for someone with access to Mellanox documentation to implement roland> them, but they're not particularly useful due to their performance roland> characteristics.
Is anyone on this list working on memory window support? I ask because the DAT API contains interfaces that allow users to interact with memory windows. _______________________________________________ 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