IB/ehca: Don't allow creating UC QP with SRQ

This patch prevents a UC QP to be created attached to an SRQ, since
current firmware does not support this feature.

Signed-off-by: Michael Faath <micfaath@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/ehca/ehca_qp.c b/drivers/infiniband/hw/ehca/ehca_qp.c
index 4dbe2870e014..40b578d601c5 100644
--- a/drivers/infiniband/hw/ehca/ehca_qp.c
+++ b/drivers/infiniband/hw/ehca/ehca_qp.c
@@ -502,6 +502,12 @@ static struct ehca_qp *internal_create_qp(
         if (init_attr->srq) {
                 my_srq = container_of(init_attr->srq, struct ehca_qp, ib_srq);
 
+                if (qp_type == IB_QPT_UC) {
+                        ehca_err(pd->device, "UC with SRQ not supported");
+                        atomic_dec(&shca->num_qps);
+                        return ERR_PTR(-EINVAL);
+                }
+
                 has_srq = 1;
                 parms.ext_type = EQPT_SRQBASE;
                 parms.srq_qpn = my_srq->real_qp_num;