On Tue, Jul 14, 2015 at 12:45:12PM -0700, 'Christoph Hellwig' wrote: > How does IB_DEVICE_LOCAL_DMA_LKEY (and ->local_dma_lkey) play into > this? Seems like that should be the preferred option if supported. Very good question. > Interestingly enough various iWarp driver seem to support this option, > what's the story behind that? The (to me surprising) conclusion on > the list was that iWarp would always need a memory regireations that Only for the RDMA READ lkey. All the other verbs are the same as IB, and should use a local access all physical MR lkey. Jason -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
