RDMA/nes: Fix for the ORD value of the connecting peer

Set ORD value of the connecting peer to be at least one in order to
accommodate an RDMA READ Request message.

Signed-off-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com>
Signed-off-by: Donald Wood <Donald.E.Wood@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>

diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
index 71edfbbcce1c415fac90b8993a5415a3c1f8c2d4..5c10cbfa2668824239e810289f7d2a60f314fb35 100644 (file)
--- a/drivers/infiniband/hw/nes/nes_cm.c
+++ b/drivers/infiniband/hw/nes/nes_cm.c
@@ -3320,6 +3320,10 @@ int nes_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
 
        nesqp->private_data_len = conn_param->private_data_len;
        nesqp->nesqp_context->ird_ord_sizes |= cpu_to_le32((u32)conn_param->ord);
+       /* space for rdma0 read msg */
+       if (conn_param->ord == 0)
+               nesqp->nesqp_context->ird_ord_sizes |= cpu_to_le32(1);
+
        nes_debug(NES_DBG_CM, "requested ord = 0x%08X.\n", (u32)conn_param->ord);
        nes_debug(NES_DBG_CM, "mpa private data len =%u\n",
                  conn_param->private_data_len);