MLX5_IB_MTT_WRITE
(obj->umem->writable ? MLX5_IB_MTT_WRITE : 0) |
#define MLX5_IB_MTT_PRESENT (MLX5_IB_MTT_READ | MLX5_IB_MTT_WRITE)
dma_addr |= MLX5_IB_MTT_WRITE;