On Mon, Jun 23, 2014 at 9:34 PM, Jason Gunthorpe <jgunthorpe@xxxxxxxxxxxxxxxxxxxx> wrote: > On Mon, Jun 23, 2014 at 06:00:57PM +0000, Hefty, Sean wrote: >> The behavior matches the documentation. And the problem is...? Sean, which documentation exactly? [...] > I haven't looked at how this all plays through with RDMA CM. But > looking quickly, I don't see an obvious similar min in cma_connect_ib. Jason, The rdma-cm doesn't do any flipping, it just provides the relevant IB CM call with the params as given by the application, see cma_connect_ib() --> ib_send_cm_req() and cma_accept_ib() --> ib_send_cm_rep() As I wrote on the initial note, the flipping is done in the IB CM before it invokes the upper layer (e.g SRP/IPoIB/RDMA-CM/UCM) provided callback in cm_format_req_event() and cm_format_rep_event() > To my mind, the biggest issue is the common code does not seem to make > it easy for apps to correctly implement the IBA negotiation protocol. And also the Linux CM assumes the peer CM will apply the same flipping practice Or. -- 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
