IB/mlx5: Enable "block multicast loopback" for kernel consumers

In commit f360d88a2efd, we advertise blocking multicast loopback to both
kernel and userspace consumers, but don't allow kernel consumers (e.g IPoIB)
to use it with their UD QPs.  Fix that.

Fixes: f360d88a2efd ("IB/mlx5: Add block multicast loopback support")
Reported-by: Haggai Eran <[email protected]>
Signed-off-by: Eli Cohen <[email protected]>
Signed-off-by: Or Gerlitz <[email protected]>
Signed-off-by: Roland Dreier <[email protected]>

diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index d13ddf1c0033385f9b2d6b5dadac29d87aaeaf45..bbbcf389272cbde11ee754d3efacae0d3c700190 100644 (file)
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -675,7 +675,7 @@ static int create_kernel_qp(struct mlx5_ib_dev *dev,
        int err;
 
        uuari = &dev->mdev.priv.uuari;
-       if (init_attr->create_flags & ~IB_QP_CREATE_SIGNATURE_EN)
+       if (init_attr->create_flags & ~(IB_QP_CREATE_SIGNATURE_EN | IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK))
                return -EINVAL;
 
        if (init_attr->qp_type == MLX5_IB_QPT_REG_UMR)