RDMA/hns: Remove unnessary init for cmq reg

There is no need to init the enable bit of cmq.
Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Link: https://lore.kernel.org/r/1565276034-97329-5-git-send-email-oulijun@huawei.comSigned-off-by: Doug Ledford <dledford@redhat.com>

drivers/infiniband/hw/hns/hns_roce_hw_v2.c

@@ -887,8 +887,7 @@ static void hns_roce_cmq_init_regs(struct hns_roce_dev *hr_dev, bool ring_type)
 		roce_write(hr_dev, ROCEE_TX_CMQ_BASEADDR_H_REG,
 			   upper_32_bits(dma));
 		roce_write(hr_dev, ROCEE_TX_CMQ_DEPTH_REG,
-			  (ring->desc_num >> HNS_ROCE_CMQ_DESC_NUM_S) |
-			   HNS_ROCE_CMQ_ENABLE);
+			   ring->desc_num >> HNS_ROCE_CMQ_DESC_NUM_S);
 		roce_write(hr_dev, ROCEE_TX_CMQ_HEAD_REG, 0);
 		roce_write(hr_dev, ROCEE_TX_CMQ_TAIL_REG, 0);
 	} else {
@@ -896,8 +895,7 @@ static void hns_roce_cmq_init_regs(struct hns_roce_dev *hr_dev, bool ring_type)
 		roce_write(hr_dev, ROCEE_RX_CMQ_BASEADDR_H_REG,
 			   upper_32_bits(dma));
 		roce_write(hr_dev, ROCEE_RX_CMQ_DEPTH_REG,
-			  (ring->desc_num >> HNS_ROCE_CMQ_DESC_NUM_S) |
-			   HNS_ROCE_CMQ_ENABLE);
+			   ring->desc_num >> HNS_ROCE_CMQ_DESC_NUM_S);
 		roce_write(hr_dev, ROCEE_RX_CMQ_HEAD_REG, 0);
 		roce_write(hr_dev, ROCEE_RX_CMQ_TAIL_REG, 0);
 	}

drivers/infiniband/hw/hns/hns_roce_hw_v2.h

@@ -126,8 +126,6 @@
 #define HNS_ROCE_CMD_FLAG_ERR_INTR	BIT(HNS_ROCE_CMD_FLAG_ERR_INTR_SHIFT)
 
 #define HNS_ROCE_CMQ_DESC_NUM_S		3
-#define HNS_ROCE_CMQ_EN_B		16
-#define HNS_ROCE_CMQ_ENABLE		BIT(HNS_ROCE_CMQ_EN_B)
 
 #define HNS_ROCE_CMQ_SCC_CLR_DONE_CNT		5