qed: simplify chain allocation with init params struct

To simplify qed_chain_alloc() prototype and call sites, introduce struct
qed_chain_init_params to specify chain params, and pass a pointer to
filled struct to the actual qed_chain_alloc() instead of a long list
of separate arguments.

Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 58 insertions, 57 deletions

diff --git a/drivers/infiniband/hw/qedr/main.c b/drivers/infiniband/hw/qedr/main.c
index ccaedfd53e49..b1de8d608e4d 100644
--- a/drivers/infiniband/hw/qedr/main.c
+++ b/drivers/infiniband/hw/qedr/main.c
@@ -346,9 +346,14 @@ static void qedr_free_resources(struct qedr_dev *dev)
 
 static int qedr_alloc_resources(struct qedr_dev *dev)
 {
+	struct qed_chain_init_params params = {
+		.mode		= QED_CHAIN_MODE_PBL,
+		.intended_use	= QED_CHAIN_USE_TO_CONSUME,
+		.cnt_type	= QED_CHAIN_CNT_TYPE_U16,
+		.elem_size	= sizeof(struct regpair *),
+	};
 	struct qedr_cnq *cnq;
 	__le16 *cons_pi;
-	u16 n_entries;
 	int i, rc;
 
 	dev->sgid_tbl = kcalloc(QEDR_MAX_SGID, sizeof(union ib_gid),
@@ -382,7 +387,9 @@ static int qedr_alloc_resources(struct qedr_dev *dev)
 	dev->sb_start = dev->ops->rdma_get_start_sb(dev->cdev);
 
 	/* Allocate CNQ PBLs */
-	n_entries = min_t(u32, QED_RDMA_MAX_CNQ_SIZE, QEDR_ROCE_MAX_CNQ_SIZE);
+	params.num_elems = min_t(u32, QED_RDMA_MAX_CNQ_SIZE,
+				 QEDR_ROCE_MAX_CNQ_SIZE);
+
 	for (i = 0; i < dev->num_cnq; i++) {
 		cnq = &dev->cnq_array[i];
 
@@ -391,13 +398,8 @@ static int qedr_alloc_resources(struct qedr_dev *dev)
 		if (rc)
 			goto err3;
 
-		rc = dev->ops->common->chain_alloc(dev->cdev,
-						   QED_CHAIN_USE_TO_CONSUME,
-						   QED_CHAIN_MODE_PBL,
-						   QED_CHAIN_CNT_TYPE_U16,
-						   n_entries,
-						   sizeof(struct regpair *),
-						   &cnq->pbl, NULL);
+		rc = dev->ops->common->chain_alloc(dev->cdev, &cnq->pbl,
+						   &params);
 		if (rc)
 			goto err4;
 
diff --git a/drivers/infiniband/hw/qedr/verbs.c b/drivers/infiniband/hw/qedr/verbs.c
index 9b9e80266367..6737895a0d68 100644
--- a/drivers/infiniband/hw/qedr/verbs.c
+++ b/drivers/infiniband/hw/qedr/verbs.c
@@ -891,6 +891,12 @@ int qedr_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
 		udata, struct qedr_ucontext, ibucontext);
 	struct qed_rdma_destroy_cq_out_params destroy_oparams;
 	struct qed_rdma_destroy_cq_in_params destroy_iparams;
+	struct qed_chain_init_params chain_params = {
+		.mode		= QED_CHAIN_MODE_PBL,
+		.intended_use	= QED_CHAIN_USE_TO_CONSUME,
+		.cnt_type	= QED_CHAIN_CNT_TYPE_U32,
+		.elem_size	= sizeof(union rdma_cqe),
+	};
 	struct qedr_dev *dev = get_qedr_dev(ibdev);
 	struct qed_rdma_create_cq_in_params params;
 	struct qedr_create_cq_ureq ureq = {};
@@ -917,6 +923,7 @@ int qedr_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
 
 	chain_entries = qedr_align_cq_entries(entries);
 	chain_entries = min_t(int, chain_entries, QEDR_MAX_CQES);
+	chain_params.num_elems = chain_entries;
 
 	/* calc db offset. user will add DPI base, kernel will add db addr */
 	db_offset = DB_ADDR_SHIFT(DQ_PWM_OFFSET_UCM_RDMA_CQ_CONS_32BIT);
@@ -951,13 +958,8 @@ int qedr_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
 	} else {
 		cq->cq_type = QEDR_CQ_TYPE_KERNEL;
 
-		rc = dev->ops->common->chain_alloc(dev->cdev,
-						   QED_CHAIN_USE_TO_CONSUME,
-						   QED_CHAIN_MODE_PBL,
-						   QED_CHAIN_CNT_TYPE_U32,
-						   chain_entries,
-						   sizeof(union rdma_cqe),
-						   &cq->pbl, NULL);
+		rc = dev->ops->common->chain_alloc(dev->cdev, &cq->pbl,
+						   &chain_params);
 		if (rc)
 			goto err0;
 
@@ -1446,6 +1448,12 @@ static int qedr_alloc_srq_kernel_params(struct qedr_srq *srq,
 					struct ib_srq_init_attr *init_attr)
 {
 	struct qedr_srq_hwq_info *hw_srq = &srq->hw_srq;
+	struct qed_chain_init_params params = {
+		.mode		= QED_CHAIN_MODE_PBL,
+		.intended_use	= QED_CHAIN_USE_TO_CONSUME_PRODUCE,
+		.cnt_type	= QED_CHAIN_CNT_TYPE_U32,
+		.elem_size	= QEDR_SRQ_WQE_ELEM_SIZE,
+	};
 	dma_addr_t phy_prod_pair_addr;
 	u32 num_elems;
 	void *va;
@@ -1464,13 +1472,9 @@ static int qedr_alloc_srq_kernel_params(struct qedr_srq *srq,
 	hw_srq->virt_prod_pair_addr = va;
 
 	num_elems = init_attr->attr.max_wr * RDMA_MAX_SRQ_WQE_SIZE;
-	rc = dev->ops->common->chain_alloc(dev->cdev,
-					   QED_CHAIN_USE_TO_CONSUME_PRODUCE,
-					   QED_CHAIN_MODE_PBL,
-					   QED_CHAIN_CNT_TYPE_U32,
-					   num_elems,
-					   QEDR_SRQ_WQE_ELEM_SIZE,
-					   &hw_srq->pbl, NULL);
+	params.num_elems = num_elems;
+
+	rc = dev->ops->common->chain_alloc(dev->cdev, &hw_srq->pbl, &params);
 	if (rc)
 		goto err0;
 
@@ -1901,29 +1905,28 @@ qedr_roce_create_kernel_qp(struct qedr_dev *dev,
 			   u32 n_sq_elems, u32 n_rq_elems)
 {
 	struct qed_rdma_create_qp_out_params out_params;
+	struct qed_chain_init_params params = {
+		.mode		= QED_CHAIN_MODE_PBL,
+		.cnt_type	= QED_CHAIN_CNT_TYPE_U32,
+	};
 	int rc;
 
-	rc = dev->ops->common->chain_alloc(dev->cdev,
-					   QED_CHAIN_USE_TO_PRODUCE,
-					   QED_CHAIN_MODE_PBL,
-					   QED_CHAIN_CNT_TYPE_U32,
-					   n_sq_elems,
-					   QEDR_SQE_ELEMENT_SIZE,
-					   &qp->sq.pbl, NULL);
+	params.intended_use = QED_CHAIN_USE_TO_PRODUCE;
+	params.num_elems = n_sq_elems;
+	params.elem_size = QEDR_SQE_ELEMENT_SIZE;
 
+	rc = dev->ops->common->chain_alloc(dev->cdev, &qp->sq.pbl, &params);
 	if (rc)
 		return rc;
 
 	in_params->sq_num_pages = qed_chain_get_page_cnt(&qp->sq.pbl);
 	in_params->sq_pbl_ptr = qed_chain_get_pbl_phys(&qp->sq.pbl);
 
-	rc = dev->ops->common->chain_alloc(dev->cdev,
-					   QED_CHAIN_USE_TO_CONSUME_PRODUCE,
-					   QED_CHAIN_MODE_PBL,
-					   QED_CHAIN_CNT_TYPE_U32,
-					   n_rq_elems,
-					   QEDR_RQE_ELEMENT_SIZE,
-					   &qp->rq.pbl, NULL);
+	params.intended_use = QED_CHAIN_USE_TO_CONSUME_PRODUCE;
+	params.elem_size = n_rq_elems;
+	params.elem_size = QEDR_RQE_ELEMENT_SIZE;
+
+	rc = dev->ops->common->chain_alloc(dev->cdev, &qp->rq.pbl, &params);
 	if (rc)
 		return rc;
 
@@ -1949,7 +1952,10 @@ qedr_iwarp_create_kernel_qp(struct qedr_dev *dev,
 			    u32 n_sq_elems, u32 n_rq_elems)
 {
 	struct qed_rdma_create_qp_out_params out_params;
-	struct qed_chain_ext_pbl ext_pbl;
+	struct qed_chain_init_params params = {
+		.mode		= QED_CHAIN_MODE_PBL,
+		.cnt_type	= QED_CHAIN_CNT_TYPE_U32,
+	};
 	int rc;
 
 	in_params->sq_num_pages = QED_CHAIN_PAGE_CNT(n_sq_elems,
@@ -1966,31 +1972,24 @@ qedr_iwarp_create_kernel_qp(struct qedr_dev *dev,
 		return -EINVAL;
 
 	/* Now we allocate the chain */
-	ext_pbl.p_pbl_virt = out_params.sq_pbl_virt;
-	ext_pbl.p_pbl_phys = out_params.sq_pbl_phys;
 
-	rc = dev->ops->common->chain_alloc(dev->cdev,
-					   QED_CHAIN_USE_TO_PRODUCE,
-					   QED_CHAIN_MODE_PBL,
-					   QED_CHAIN_CNT_TYPE_U32,
-					   n_sq_elems,
-					   QEDR_SQE_ELEMENT_SIZE,
-					   &qp->sq.pbl, &ext_pbl);
+	params.intended_use = QED_CHAIN_USE_TO_PRODUCE;
+	params.num_elems = n_sq_elems;
+	params.elem_size = QEDR_SQE_ELEMENT_SIZE;
+	params.ext_pbl_virt = out_params.sq_pbl_virt;
+	params.ext_pbl_phys = out_params.sq_pbl_phys;
 
+	rc = dev->ops->common->chain_alloc(dev->cdev, &qp->sq.pbl, &params);
 	if (rc)
 		goto err;
 
-	ext_pbl.p_pbl_virt = out_params.rq_pbl_virt;
-	ext_pbl.p_pbl_phys = out_params.rq_pbl_phys;
-
-	rc = dev->ops->common->chain_alloc(dev->cdev,
-					   QED_CHAIN_USE_TO_CONSUME_PRODUCE,
-					   QED_CHAIN_MODE_PBL,
-					   QED_CHAIN_CNT_TYPE_U32,
-					   n_rq_elems,
-					   QEDR_RQE_ELEMENT_SIZE,
-					   &qp->rq.pbl, &ext_pbl);
+	params.intended_use = QED_CHAIN_USE_TO_CONSUME_PRODUCE;
+	params.num_elems = n_rq_elems;
+	params.elem_size = QEDR_RQE_ELEMENT_SIZE;
+	params.ext_pbl_virt = out_params.rq_pbl_virt;
+	params.ext_pbl_phys = out_params.rq_pbl_phys;
 
+	rc = dev->ops->common->chain_alloc(dev->cdev, &qp->rq.pbl, &params);
 	if (rc)
 		goto err;