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iw_cxgb4: use the MPA initiator's IRD if < our ORD

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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: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Steve Wise 2016-08-19 07:29:08 -07:00 committed by Doug Ledford
parent 7f446abf12
commit 30b03b1528
1 changed files with 1 additions and 1 deletions
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2
drivers/infiniband/hw/cxgb4/cm.c
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@ -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;