On Thu, Jul 23, 2015 at 11:30:08PM +0000, Hefty, Sean wrote: > I don't see where usnic, ipath, qib, or opa technically need an lkey > at all. 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.. qib family may not technically need a lkey, but those drivers are the only modern drivers not to support IB_DEVICE_LOCAL_DMA_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