On Fri, Jul 10, 2015 at 10:53:40AM -0400, Chuck Lever wrote: > It is certainly possible to examine the device’s max_sge field > in rpcrdma_ep_create() and fail transport creation if the > device’s max_sge is less than RPC_MAX_IOVS. I just want to draw Sagi's attention to this problem, when considering my thoughts on an alternate API for posting. This thread is about NFS needing 4 sges for a (rare?) message type. The API direction I suggested addresses this kind of issue as well, because under the covers the driver/core can spin up a temporary MR for this case and thus support an infinite s/g list for all posts. 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