MLX4_EN_CQ_STATE_POLL
#define MLX4_CQ_LOCKED (MLX4_EN_CQ_STATE_NAPI | MLX4_EN_CQ_STATE_POLL)
#define CQ_USER_PEND (MLX4_EN_CQ_STATE_POLL | MLX4_EN_CQ_STATE_POLL_YIELD)
WARN_ON(cq->state & (MLX4_EN_CQ_STATE_POLL |
cq->state |= MLX4_EN_CQ_STATE_POLL;