IB/mlx4: Set RLKEY bit for kernel QPs

Set RLKEY bit in the HW context for kernel QPs so that kernel QPs can
use the reserved L_Key for memory reference.

Signed-off-by: Vladimir Sokolovsky <vlad@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index 9559248..baa01de 100644 (file)
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -1058,6 +1058,9 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp,
        else
                sqd_event = 0;
 
+       if (!ibqp->uobject && cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT)
+               context->rlkey |= (1 << 4);
+
        /*
         * Before passing a kernel QP to the HW, make sure that the
         * ownership bits of the send queue are set and the SQ