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Commit 30b03b15 authored by Steve Wise's avatar Steve Wise Committed by Doug Ledford
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iw_cxgb4: use the MPA initiator's IRD if < our ORD 



The i40iw initiator sends an MPA-request with ird=16 and ord=16. The cxgb4
responder sends an MPA-reply with ord = 32 causing i40iw to terminate
due to insufficient resources.

The logic to reduce the ORD to <= peer's IRD was wrong.

Reported-by: default avatarShiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: default avatarSteve Wise <swise@opengridcomputing.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent 7f446abf

drivers/infiniband/hw/cxgb4/cm.c

+1 −1
Original line number Diff line number Diff line
@@ -3140,7 +3140,7 @@ int c4iw_accept_cr(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) 
	if (ep->mpa_attr.version == 2 && ep->mpa_attr.enhanced_rdma_conn) {

		if (conn_param->ord > ep->ird) {

			if (RELAXED_IRD_NEGOTIATION) {

				ep->ord = ep->ird;

				conn_param->ord = ep->ird;

			} else {

				ep->ird = conn_param->ird;

				ep->ord = conn_param->ord;