IB/mlx4: Disable VLAN stripping for RAW PACKET QPs

Fix the asymmetric behavior w.r.t VLAN insertion/stripping for RAW
PACKET QPs -- we don't insert on send and need not strip on receive.

Signed-off-by: Dotan Barak <dotanb@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>

diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index 35cced2..d4e87c2 100644 (file)
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -1292,6 +1292,8 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp,
        if (cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT) {
                context->sq_size_stride |= !!qp->sq_no_prefetch << 7;
                context->xrcd = cpu_to_be32((u32) qp->xrcdn);
+               if (ibqp->qp_type == IB_QPT_RAW_PACKET)
+                       context->param3 |= cpu_to_be32(1 << 30);
        }
 
        if (qp->ibqp.uobject)