On Fri, Mar 27, 2015 at 01:16:31PM -0400, ira.weiny wrote: > On Fri, Mar 27, 2015 at 10:13:19AM -0600, Jason Gunthorpe wrote: > > On Fri, Mar 27, 2015 at 04:47:36PM +0100, Michael Wang wrote: > > > > > > Introduce helper has_iwarp() to help us check if an IB device > > > support IWARP protocol. > > > > Should probably be !has_rdma_read_sges() > > > > True if the device can handle more than one SGE entry on a RDMA READ > > work request. > > Isn't this value already provided by the query_device verb? > > The verbs spec states the Query HCA contains the: > > "Maximum number of scatter/gather entries per Work Request supported by the > HCA." http://www.spinics.net/lists/linux-rdma/msg22565.html ''Unlike IB, the iWARP protocol only allows 1 target/sink SGE in an rdma read'' It is one of those annoying verbs is different on iWarp things. So the max sge in the query_verbs must only apply to send/rdma write on iWarp? 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
