RDMA/hns: Remove similar code that configures the hardware contexts

Remove duplicate code for creating and destroying hardware contexts via
mailbox.

Link: https://lore.kernel.org/r/20220302064830.61706-7-liangwenpeng@huawei.comSigned-off-by: Chengchang Tang <tangchengchang@huawei.com>
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

drivers/infiniband/hw/hns/hns_roce_cmd.c

@@ -262,3 +262,15 @@ void hns_roce_free_cmd_mailbox(struct hns_roce_dev *hr_dev,
 	dma_pool_free(hr_dev->cmd.pool, mailbox->buf, mailbox->dma);
 	kfree(mailbox);
 }
+
+int hns_roce_create_hw_ctx(struct hns_roce_dev *dev,
+			   struct hns_roce_cmd_mailbox *mailbox,
+			   u8 cmd, unsigned long idx)
+{
+	return hns_roce_cmd_mbox(dev, mailbox->dma, 0, cmd, idx);
+}
+
+int hns_roce_destroy_hw_ctx(struct hns_roce_dev *dev, u8 cmd, unsigned long idx)
+{
+	return hns_roce_cmd_mbox(dev, 0, 0, cmd, idx);
+}

drivers/infiniband/hw/hns/hns_roce_cmd.h

@@ -146,5 +146,10 @@ struct hns_roce_cmd_mailbox *
 hns_roce_alloc_cmd_mailbox(struct hns_roce_dev *hr_dev);
 void hns_roce_free_cmd_mailbox(struct hns_roce_dev *hr_dev,
 			       struct hns_roce_cmd_mailbox *mailbox);
+int hns_roce_create_hw_ctx(struct hns_roce_dev *dev,
+			   struct hns_roce_cmd_mailbox *mailbox,
+			   u8 cmd, unsigned long idx);
+int hns_roce_destroy_hw_ctx(struct hns_roce_dev *dev, u8 cmd,
+			    unsigned long idx);
 
 #endif /* _HNS_ROCE_CMD_H */

drivers/infiniband/hw/hns/hns_roce_cq.c

@@ -139,8 +139,8 @@ static int alloc_cqc(struct hns_roce_dev *hr_dev, struct hns_roce_cq *hr_cq)
 
 	hr_dev->hw->write_cqc(hr_dev, hr_cq, mailbox->buf, mtts, dma_handle);
 
-	ret = hns_roce_cmd_mbox(hr_dev, mailbox->dma, 0,
-				HNS_ROCE_CMD_CREATE_CQC, hr_cq->cqn);
+	ret = hns_roce_create_hw_ctx(hr_dev, mailbox, HNS_ROCE_CMD_CREATE_CQC,
+				     hr_cq->cqn);
 	hns_roce_free_cmd_mailbox(hr_dev, mailbox);
 	if (ret) {
 		ibdev_err(ibdev,
@@ -173,7 +173,7 @@ static void free_cqc(struct hns_roce_dev *hr_dev, struct hns_roce_cq *hr_cq)
 	struct device *dev = hr_dev->dev;
 	int ret;
 
-	ret = hns_roce_cmd_mbox(hr_dev, 0, 0, HNS_ROCE_CMD_DESTROY_CQC,
+	ret = hns_roce_destroy_hw_ctx(hr_dev, HNS_ROCE_CMD_DESTROY_CQC,
 				      hr_cq->cqn);
 	if (ret)
 		dev_err(dev, "DESTROY_CQ failed (%d) for CQN %06lx\n", ret,

drivers/infiniband/hw/hns/hns_roce_device.h

@@ -1152,8 +1152,6 @@ struct ib_mr *hns_roce_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
 int hns_roce_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents,
 		       unsigned int *sg_offset);
 int hns_roce_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata);
-int hns_roce_hw_destroy_mpt(struct hns_roce_dev *hr_dev,
-			    unsigned long mpt_index);
 unsigned long key_to_hw_index(u32 key);
 
 int hns_roce_alloc_mw(struct ib_mw *mw, struct ib_udata *udata);

drivers/infiniband/hw/hns/hns_roce_hw_v2.c

@@ -5868,7 +5868,7 @@ static void hns_roce_v2_destroy_eqc(struct hns_roce_dev *hr_dev, u32 eqn)
 	else
 		cmd = HNS_ROCE_CMD_DESTROY_AEQC;
 
-	ret = hns_roce_cmd_mbox(hr_dev, 0, 0, cmd, eqn & HNS_ROCE_V2_EQN_M);
+	ret = hns_roce_destroy_hw_ctx(hr_dev, cmd, eqn & HNS_ROCE_V2_EQN_M);
 	if (ret)
 		dev_err(dev, "[mailbox cmd] destroy eqc(%u) failed.\n", eqn);
 }
@@ -5992,7 +5992,7 @@ static int hns_roce_v2_create_eq(struct hns_roce_dev *hr_dev,
 	if (ret)
 		goto err_cmd_mbox;
 
-	ret = hns_roce_cmd_mbox(hr_dev, mailbox->dma, 0, eq_cmd, eq->eqn);
+	ret = hns_roce_create_hw_ctx(hr_dev, mailbox, eq_cmd, eq->eqn);
 	if (ret) {
 		dev_err(hr_dev->dev, "[mailbox cmd] create eqc failed.\n");
 		goto err_cmd_mbox;

drivers/infiniband/hw/hns/hns_roce_mr.c

@@ -47,21 +47,6 @@ unsigned long key_to_hw_index(u32 key)
 	return (key << 24) | (key >> 8);
 }
 
-static int hns_roce_hw_create_mpt(struct hns_roce_dev *hr_dev,
-				  struct hns_roce_cmd_mailbox *mailbox,
-				  unsigned long mpt_index)
-{
-	return hns_roce_cmd_mbox(hr_dev, mailbox->dma, 0,
-				 HNS_ROCE_CMD_CREATE_MPT, mpt_index);
-}
-
-int hns_roce_hw_destroy_mpt(struct hns_roce_dev *hr_dev,
-			    unsigned long mpt_index)
-{
-	return hns_roce_cmd_mbox(hr_dev, 0, 0, HNS_ROCE_CMD_DESTROY_MPT,
-				 mpt_index);
-}
-
 static int alloc_mr_key(struct hns_roce_dev *hr_dev, struct hns_roce_mr *mr)
 {
 	struct hns_roce_ida *mtpt_ida = &hr_dev->mr_table.mtpt_ida;
@@ -141,7 +126,7 @@ static void hns_roce_mr_free(struct hns_roce_dev *hr_dev,
 	int ret;
 
 	if (mr->enabled) {
-		ret = hns_roce_hw_destroy_mpt(hr_dev,
+		ret = hns_roce_destroy_hw_ctx(hr_dev, HNS_ROCE_CMD_DESTROY_MPT,
 					      key_to_hw_index(mr->key) &
 					      (hr_dev->caps.num_mtpts - 1));
 		if (ret)
@@ -177,7 +162,7 @@ static int hns_roce_mr_enable(struct hns_roce_dev *hr_dev,
 		goto err_page;
 	}
 
-	ret = hns_roce_hw_create_mpt(hr_dev, mailbox,
+	ret = hns_roce_create_hw_ctx(hr_dev, mailbox, HNS_ROCE_CMD_CREATE_MPT,
 				     mtpt_idx & (hr_dev->caps.num_mtpts - 1));
 	if (ret) {
 		dev_err(dev, "failed to create mpt, ret = %d.\n", ret);
@@ -306,7 +291,8 @@ struct ib_mr *hns_roce_rereg_user_mr(struct ib_mr *ibmr, int flags, u64 start,
 	if (ret)
 		goto free_cmd_mbox;
 
-	ret = hns_roce_hw_destroy_mpt(hr_dev, mtpt_idx);
+	ret = hns_roce_destroy_hw_ctx(hr_dev, HNS_ROCE_CMD_DESTROY_MPT,
+				      mtpt_idx);
 	if (ret)
 		ibdev_warn(ib_dev, "failed to destroy MPT, ret = %d.\n", ret);
 
@@ -336,7 +322,8 @@ struct ib_mr *hns_roce_rereg_user_mr(struct ib_mr *ibmr, int flags, u64 start,
 		goto free_cmd_mbox;
 	}
 
-	ret = hns_roce_hw_create_mpt(hr_dev, mailbox, mtpt_idx);
+	ret = hns_roce_create_hw_ctx(hr_dev, mailbox, HNS_ROCE_CMD_CREATE_MPT,
+				     mtpt_idx);
 	if (ret) {
 		ibdev_err(ib_dev, "failed to create MPT, ret = %d.\n", ret);
 		goto free_cmd_mbox;
@@ -477,7 +464,7 @@ static void hns_roce_mw_free(struct hns_roce_dev *hr_dev,
 	int ret;
 
 	if (mw->enabled) {
-		ret = hns_roce_hw_destroy_mpt(hr_dev,
+		ret = hns_roce_destroy_hw_ctx(hr_dev, HNS_ROCE_CMD_DESTROY_MPT,
 					      key_to_hw_index(mw->rkey) &
 					      (hr_dev->caps.num_mtpts - 1));
 		if (ret)
@@ -517,7 +504,7 @@ static int hns_roce_mw_enable(struct hns_roce_dev *hr_dev,
 		goto err_page;
 	}
 
-	ret = hns_roce_hw_create_mpt(hr_dev, mailbox,
+	ret = hns_roce_create_hw_ctx(hr_dev, mailbox, HNS_ROCE_CMD_CREATE_MPT,
 				     mtpt_idx & (hr_dev->caps.num_mtpts - 1));
 	if (ret) {
 		dev_err(dev, "MW CREATE_MPT failed (%d)\n", ret);

drivers/infiniband/hw/hns/hns_roce_srq.c

@@ -59,20 +59,6 @@ static void hns_roce_ib_srq_event(struct hns_roce_srq *srq,
 	}
 }
 
-static int hns_roce_hw_create_srq(struct hns_roce_dev *dev,
-				  struct hns_roce_cmd_mailbox *mailbox,
-				  unsigned long srq_num)
-{
-	return hns_roce_cmd_mbox(dev, mailbox->dma, 0, HNS_ROCE_CMD_CREATE_SRQ,
-				 srq_num);
-}
-
-static int hns_roce_hw_destroy_srq(struct hns_roce_dev *dev,
-				   unsigned long srq_num)
-{
-	return hns_roce_cmd_mbox(dev, 0, 0, HNS_ROCE_CMD_DESTROY_SRQ, srq_num);
-}
-
 static int alloc_srqc(struct hns_roce_dev *hr_dev, struct hns_roce_srq *srq)
 {
 	struct hns_roce_srq_table *srq_table = &hr_dev->srq_table;
@@ -115,7 +101,8 @@ static int alloc_srqc(struct hns_roce_dev *hr_dev, struct hns_roce_srq *srq)
 		goto err_mbox;
 	}
 
-	ret = hns_roce_hw_create_srq(hr_dev, mailbox, srq->srqn);
+	ret = hns_roce_create_hw_ctx(hr_dev, mailbox, HNS_ROCE_CMD_CREATE_SRQ,
+				     srq->srqn);
 	if (ret) {
 		ibdev_err(ibdev, "failed to config SRQC, ret = %d.\n", ret);
 		goto err_mbox;
@@ -142,7 +129,8 @@ static void free_srqc(struct hns_roce_dev *hr_dev, struct hns_roce_srq *srq)
 	struct hns_roce_srq_table *srq_table = &hr_dev->srq_table;
 	int ret;
 
-	ret = hns_roce_hw_destroy_srq(hr_dev, srq->srqn);
+	ret = hns_roce_destroy_hw_ctx(hr_dev, HNS_ROCE_CMD_DESTROY_SRQ,
+				      srq->srqn);
 	if (ret)
 		dev_err(hr_dev->dev, "DESTROY_SRQ failed (%d) for SRQN %06lx\n",
 			ret, srq->srqn);