IB/ehca: Return correct number of SGEs for SRQ

Firmware would round up the number of SGEs to four, because the WQE
structure holds four SGEs. For SRQ, only three are supported, so return
a fixed value instead.

Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

diff --git a/drivers/infiniband/hw/ehca/ehca_qp.c b/drivers/infiniband/hw/ehca/ehca_qp.c
index dd12668..eff5fb5 100644 (file)
--- a/drivers/infiniband/hw/ehca/ehca_qp.c
+++ b/drivers/infiniband/hw/ehca/ehca_qp.c
@@ -838,7 +838,7 @@ struct ib_srq *ehca_create_srq(struct ib_pd *pd,
 
        /* copy back return values */
        srq_init_attr->attr.max_wr = qp_init_attr.cap.max_recv_wr;
-       srq_init_attr->attr.max_sge = qp_init_attr.cap.max_recv_sge;
+       srq_init_attr->attr.max_sge = 3;
 
        /* drive SRQ into RTR state */
        mqpcb = ehca_alloc_fw_ctrlblock(GFP_KERNEL);
@@ -1750,7 +1750,7 @@ int ehca_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr)
        }
 
        srq_attr->max_wr = qpcb->max_nr_outst_recv_wr - 1;
-       srq_attr->max_sge = qpcb->actual_nr_sges_in_rq_wqe;
+       srq_attr->max_sge = 3;
        srq_attr->srq_limit = EHCA_BMASK_GET(
                MQPCB_CURR_SRQ_LIMIT, qpcb->curr_srq_limit);