1 files changed, 6 insertions, 43 deletions

diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
index 401bdc9e931e..ba515efd4fdc 100644
--- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c
+++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
@@ -469,7 +469,6 @@ static int bnxt_re_create_fence_mr(struct bnxt_re_pd *pd)
 	struct bnxt_re_mr *mr = NULL;
 	dma_addr_t dma_addr = 0;
 	struct ib_mw *mw;
-	u64 pbl_tbl;
 	int rc;
 
 	dma_addr = dma_map_single(dev, fence->va, BNXT_RE_FENCE_BYTES,
@@ -504,9 +503,8 @@ static int bnxt_re_create_fence_mr(struct bnxt_re_pd *pd)
 	mr->ib_mr.lkey = mr->qplib_mr.lkey;
 	mr->qplib_mr.va = (u64)(unsigned long)fence->va;
 	mr->qplib_mr.total_size = BNXT_RE_FENCE_BYTES;
-	pbl_tbl = dma_addr;
-	rc = bnxt_qplib_reg_mr(&rdev->qplib_res, &mr->qplib_mr, &pbl_tbl,
-			       BNXT_RE_FENCE_PBL_SIZE, false, PAGE_SIZE);
+	rc = bnxt_qplib_reg_mr(&rdev->qplib_res, &mr->qplib_mr, NULL,
+			       BNXT_RE_FENCE_PBL_SIZE, PAGE_SIZE);
 	if (rc) {
 		ibdev_err(&rdev->ibdev, "Failed to register fence-MR\n");
 		goto fail;
@@ -3589,7 +3587,6 @@ struct ib_mr *bnxt_re_get_dma_mr(struct ib_pd *ib_pd, int mr_access_flags)
 	struct bnxt_re_pd *pd = container_of(ib_pd, struct bnxt_re_pd, ib_pd);
 	struct bnxt_re_dev *rdev = pd->rdev;
 	struct bnxt_re_mr *mr;
-	u64 pbl = 0;
 	int rc;
 
 	mr = kzalloc(sizeof(*mr), GFP_KERNEL);
@@ -3608,7 +3605,7 @@ struct ib_mr *bnxt_re_get_dma_mr(struct ib_pd *ib_pd, int mr_access_flags)
 
 	mr->qplib_mr.hwq.level = PBL_LVL_MAX;
 	mr->qplib_mr.total_size = -1; /* Infinte length */
-	rc = bnxt_qplib_reg_mr(&rdev->qplib_res, &mr->qplib_mr, &pbl, 0, false,
+	rc = bnxt_qplib_reg_mr(&rdev->qplib_res, &mr->qplib_mr, NULL, 0,
 			       PAGE_SIZE);
 	if (rc)
 		goto fail_mr;
@@ -3779,19 +3776,6 @@ int bnxt_re_dealloc_mw(struct ib_mw *ib_mw)
 	return rc;
 }
 
-static int fill_umem_pbl_tbl(struct ib_umem *umem, u64 *pbl_tbl_orig,
-			     int page_shift)
-{
-	u64 *pbl_tbl = pbl_tbl_orig;
-	u64 page_size =  BIT_ULL(page_shift);
-	struct ib_block_iter biter;
-
-	rdma_umem_for_each_dma_block(umem, &biter, page_size)
-		*pbl_tbl++ = rdma_block_iter_dma_address(&biter);
-
-	return pbl_tbl - pbl_tbl_orig;
-}
-
 /* uverbs */
 struct ib_mr *bnxt_re_reg_user_mr(struct ib_pd *ib_pd, u64 start, u64 length,
 				  u64 virt_addr, int mr_access_flags,
@@ -3801,7 +3785,6 @@ struct ib_mr *bnxt_re_reg_user_mr(struct ib_pd *ib_pd, u64 start, u64 length,
 	struct bnxt_re_dev *rdev = pd->rdev;
 	struct bnxt_re_mr *mr;
 	struct ib_umem *umem;
-	u64 *pbl_tbl = NULL;
 	unsigned long page_size;
 	int umem_pgs, rc;
 
@@ -3846,39 +3829,19 @@ struct ib_mr *bnxt_re_reg_user_mr(struct ib_pd *ib_pd, u64 start, u64 length,
 	}
 	mr->qplib_mr.total_size = length;
 
-	if (page_size == BNXT_RE_PAGE_SIZE_4K &&
-	    length > BNXT_RE_MAX_MR_SIZE_LOW) {
-		ibdev_err(&rdev->ibdev, "Requested MR Sz:%llu Max sup:%llu",
-			  length, (u64)BNXT_RE_MAX_MR_SIZE_LOW);
-		rc = -EINVAL;
-		goto free_umem;
-	}
-
 	umem_pgs = ib_umem_num_dma_blocks(umem, page_size);
-	pbl_tbl = kcalloc(umem_pgs, sizeof(*pbl_tbl), GFP_KERNEL);
-	if (!pbl_tbl) {
-		rc = -ENOMEM;
-		goto free_umem;
-	}
-
-	/* Map umem buf ptrs to the PBL */
-	umem_pgs = fill_umem_pbl_tbl(umem, pbl_tbl, order_base_2(page_size));
-	rc = bnxt_qplib_reg_mr(&rdev->qplib_res, &mr->qplib_mr, pbl_tbl,
-			       umem_pgs, false, page_size);
+	rc = bnxt_qplib_reg_mr(&rdev->qplib_res, &mr->qplib_mr, umem,
+			       umem_pgs, page_size);
 	if (rc) {
 		ibdev_err(&rdev->ibdev, "Failed to register user MR");
-		goto fail;
+		goto free_umem;
 	}
 
-	kfree(pbl_tbl);
-
 	mr->ib_mr.lkey = mr->qplib_mr.lkey;
 	mr->ib_mr.rkey = mr->qplib_mr.lkey;
 	atomic_inc(&rdev->mr_count);
 
 	return &mr->ib_mr;
-fail:
-	kfree(pbl_tbl);
 free_umem:
 	ib_umem_release(umem);
 free_mrw: