On Fri, Jul 24, 2015 at 12:18:41AM +0000, Hefty, Sean wrote: > > The lkey is possibly useful if someone wants to do single op transfers > > larger than the S/G limit of the SQE. I haven't noticed any ULPs doing > > that.. > > That changes how the buffer is identified, which gets back to my > question of are we identifying local buffers by address or through > some sort of iova/tag/descriptor/mr/whatever. Do we have this right > in the API? After Sagi's work, and my patchset, all ULPs will talk about local buffers in only two ways: - struct ib_sge w/ local_dma_lkey - struct scatterlist with memory registration to a simple ib_sge. (only done for iWarp RDMA READ? Maybe iSER DIX as well?) Efforts to unify them have not been successful for fairly reasonable reasons :) Jason -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
