diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c
index 7a3b99597ead..146f98fbf22b 100644
--- a/drivers/infiniband/core/umem.c
+++ b/drivers/infiniband/core/umem.c
@@ -181,15 +181,14 @@ EXPORT_SYMBOL(ib_umem_find_best_pgsz);
 /**
  * ib_umem_get - Pin and DMA map userspace memory.
  *
- * @udata: userspace context to pin memory for
+ * @device: IB device to connect UMEM
  * @addr: userspace virtual address to start at
  * @size: length of region to pin
  * @access: IB_ACCESS_xxx flags for memory being pinned
  */
-struct ib_umem *ib_umem_get(struct ib_udata *udata, unsigned long addr,
+struct ib_umem *ib_umem_get(struct ib_device *device, unsigned long addr,
 			    size_t size, int access)
 {
-	struct ib_ucontext *context;
 	struct ib_umem *umem;
 	struct page **page_list;
 	unsigned long lock_limit;
@@ -201,14 +200,6 @@ struct ib_umem *ib_umem_get(struct ib_udata *udata, unsigned long addr,
 	struct scatterlist *sg;
 	unsigned int gup_flags = FOLL_WRITE;
 
-	if (!udata)
-		return ERR_PTR(-EIO);
-
-	context = container_of(udata, struct uverbs_attr_bundle, driver_udata)
-			  ->context;
-	if (!context)
-		return ERR_PTR(-EIO);
-
 	/*
 	 * If the combination of the addr and size requested for this memory
 	 * region causes an integer overflow, return error.
@@ -226,7 +217,7 @@ struct ib_umem *ib_umem_get(struct ib_udata *udata, unsigned long addr,
 	umem = kzalloc(sizeof(*umem), GFP_KERNEL);
 	if (!umem)
 		return ERR_PTR(-ENOMEM);
-	umem->ibdev = context->device;
+	umem->ibdev      = device;
 	umem->length     = size;
 	umem->address    = addr;
 	umem->writable   = ib_access_writable(access);
@@ -281,7 +272,7 @@ struct ib_umem *ib_umem_get(struct ib_udata *udata, unsigned long addr,
 		npages   -= ret;
 
 		sg = ib_umem_add_sg_table(sg, page_list, ret,
-			dma_get_max_seg_size(context->device->dma_device),
+			dma_get_max_seg_size(device->dma_device),
 			&umem->sg_nents);
 
 		up_read(&mm->mmap_sem);
@@ -289,10 +280,10 @@ struct ib_umem *ib_umem_get(struct ib_udata *udata, unsigned long addr,
 
 	sg_mark_end(sg);
 
-	umem->nmap = ib_dma_map_sg(context->device,
-				  umem->sg_head.sgl,
-				  umem->sg_nents,
-				  DMA_BIDIRECTIONAL);
+	umem->nmap = ib_dma_map_sg(device,
+				   umem->sg_head.sgl,
+				   umem->sg_nents,
+				   DMA_BIDIRECTIONAL);
 
 	if (!umem->nmap) {
 		ret = -ENOMEM;
@@ -303,7 +294,7 @@ struct ib_umem *ib_umem_get(struct ib_udata *udata, unsigned long addr,
 	goto out;
 
 umem_release:
-	__ib_umem_release(context->device, umem, 0);
+	__ib_umem_release(device, umem, 0);
 vma:
 	atomic64_sub(ib_umem_num_pages(umem), &mm->pinned_vm);
 out:
diff --git a/drivers/infiniband/core/umem_odp.c b/drivers/infiniband/core/umem_odp.c
index e42d44e501fd..dac3fd2ebc26 100644
--- a/drivers/infiniband/core/umem_odp.c
+++ b/drivers/infiniband/core/umem_odp.c
@@ -110,15 +110,12 @@ static inline int ib_init_umem_odp(struct ib_umem_odp *umem_odp,
  * They exist only to hold the per_mm reference to help the driver create
  * children umems.
  *
- * @udata: udata from the syscall being used to create the umem
+ * @device: IB device to create UMEM
  * @access: ib_reg_mr access flags
  */
-struct ib_umem_odp *ib_umem_odp_alloc_implicit(struct ib_udata *udata,
+struct ib_umem_odp *ib_umem_odp_alloc_implicit(struct ib_device *device,
 					       int access)
 {
-	struct ib_ucontext *context =
-		container_of(udata, struct uverbs_attr_bundle, driver_udata)
-			->context;
 	struct ib_umem *umem;
 	struct ib_umem_odp *umem_odp;
 	int ret;
@@ -126,14 +123,11 @@ struct ib_umem_odp *ib_umem_odp_alloc_implicit(struct ib_udata *udata,
 	if (access & IB_ACCESS_HUGETLB)
 		return ERR_PTR(-EINVAL);
 
-	if (!context)
-		return ERR_PTR(-EIO);
-
 	umem_odp = kzalloc(sizeof(*umem_odp), GFP_KERNEL);
 	if (!umem_odp)
 		return ERR_PTR(-ENOMEM);
 	umem = &umem_odp->umem;
-	umem->ibdev = context->device;
+	umem->ibdev = device;
 	umem->writable = ib_access_writable(access);
 	umem->owning_mm = current->mm;
 	umem_odp->is_implicit_odp = 1;
@@ -201,7 +195,7 @@ EXPORT_SYMBOL(ib_umem_odp_alloc_child);
 /**
  * ib_umem_odp_get - Create a umem_odp for a userspace va
  *
- * @udata: userspace context to pin memory for
+ * @device: IB device struct to get UMEM
  * @addr: userspace virtual address to start at
  * @size: length of region to pin
  * @access: IB_ACCESS_xxx flags for memory being pinned
@@ -210,23 +204,14 @@ EXPORT_SYMBOL(ib_umem_odp_alloc_child);
  * pinning, instead, stores the mm for future page fault handling in
  * conjunction with MMU notifiers.
  */
-struct ib_umem_odp *ib_umem_odp_get(struct ib_udata *udata, unsigned long addr,
-				    size_t size, int access,
+struct ib_umem_odp *ib_umem_odp_get(struct ib_device *device,
+				    unsigned long addr, size_t size, int access,
 				    const struct mmu_interval_notifier_ops *ops)
 {
 	struct ib_umem_odp *umem_odp;
-	struct ib_ucontext *context;
 	struct mm_struct *mm;
 	int ret;
 
-	if (!udata)
-		return ERR_PTR(-EIO);
-
-	context = container_of(udata, struct uverbs_attr_bundle, driver_udata)
-			  ->context;
-	if (!context)
-		return ERR_PTR(-EIO);
-
 	if (WARN_ON_ONCE(!(access & IB_ACCESS_ON_DEMAND)))
 		return ERR_PTR(-EINVAL);
 
@@ -234,7 +219,7 @@ struct ib_umem_odp *ib_umem_odp_get(struct ib_udata *udata, unsigned long addr,
 	if (!umem_odp)
 		return ERR_PTR(-ENOMEM);
 
-	umem_odp->umem.ibdev = context->device;
+	umem_odp->umem.ibdev = device;
 	umem_odp->umem.length = size;
 	umem_odp->umem.address = addr;
 	umem_odp->umem.writable = ib_access_writable(access);
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index dd765e176cdd..d33bdc9b01cd 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -1990,6 +1990,47 @@ EXPORT_SYMBOL(ib_resize_cq);
 
 /* Memory regions */
 
+struct ib_mr *ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
+			     u64 virt_addr, int access_flags)
+{
+	struct ib_mr *mr;
+
+	if (access_flags & IB_ACCESS_ON_DEMAND) {
+		if (!(pd->device->attrs.device_cap_flags &
+		      IB_DEVICE_ON_DEMAND_PAGING)) {
+			pr_debug("ODP support not available\n");
+			return ERR_PTR(-EINVAL);
+		}
+	}
+
+	mr = pd->device->ops.reg_user_mr(pd, start, length, virt_addr,
+					 access_flags, NULL);
+
+	if (IS_ERR(mr))
+		return mr;
+
+	mr->device = pd->device;
+	mr->pd = pd;
+	mr->dm = NULL;
+	atomic_inc(&pd->usecnt);
+	mr->res.type = RDMA_RESTRACK_MR;
+	rdma_restrack_kadd(&mr->res);
+
+	return mr;
+}
+EXPORT_SYMBOL(ib_reg_user_mr);
+
+int ib_advise_mr(struct ib_pd *pd, enum ib_uverbs_advise_mr_advice advice,
+		 u32 flags, struct ib_sge *sg_list, u32 num_sge)
+{
+	if (!pd->device->ops.advise_mr)
+		return -EOPNOTSUPP;
+
+	return pd->device->ops.advise_mr(pd, advice, flags, sg_list, num_sge,
+					 NULL);
+}
+EXPORT_SYMBOL(ib_advise_mr);
+
 int ib_dereg_mr_user(struct ib_mr *mr, struct ib_udata *udata)
 {
 	struct ib_pd *pd = mr->pd;
diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
index ad5112a2325f..52b6a4d85460 100644
--- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c
+++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
@@ -837,7 +837,8 @@ static int bnxt_re_init_user_qp(struct bnxt_re_dev *rdev, struct bnxt_re_pd *pd,
 		bytes += (qplib_qp->sq.max_wqe * psn_sz);
 	}
 	bytes = PAGE_ALIGN(bytes);
-	umem = ib_umem_get(udata, ureq.qpsva, bytes, IB_ACCESS_LOCAL_WRITE);
+	umem = ib_umem_get(&rdev->ibdev, ureq.qpsva, bytes,
+			   IB_ACCESS_LOCAL_WRITE);
 	if (IS_ERR(umem))
 		return PTR_ERR(umem);
 
@@ -850,7 +851,7 @@ static int bnxt_re_init_user_qp(struct bnxt_re_dev *rdev, struct bnxt_re_pd *pd,
 	if (!qp->qplib_qp.srq) {
 		bytes = (qplib_qp->rq.max_wqe * BNXT_QPLIB_MAX_RQE_ENTRY_SIZE);
 		bytes = PAGE_ALIGN(bytes);
-		umem = ib_umem_get(udata, ureq.qprva, bytes,
+		umem = ib_umem_get(&rdev->ibdev, ureq.qprva, bytes,
 				   IB_ACCESS_LOCAL_WRITE);
 		if (IS_ERR(umem))
 			goto rqfail;
@@ -1304,7 +1305,8 @@ static int bnxt_re_init_user_srq(struct bnxt_re_dev *rdev,
 
 	bytes = (qplib_srq->max_wqe * BNXT_QPLIB_MAX_RQE_ENTRY_SIZE);
 	bytes = PAGE_ALIGN(bytes);
-	umem = ib_umem_get(udata, ureq.srqva, bytes, IB_ACCESS_LOCAL_WRITE);
+	umem = ib_umem_get(&rdev->ibdev, ureq.srqva, bytes,
+			   IB_ACCESS_LOCAL_WRITE);
 	if (IS_ERR(umem))
 		return PTR_ERR(umem);
 
@@ -2545,7 +2547,7 @@ int bnxt_re_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
 			goto fail;
 		}
 
-		cq->umem = ib_umem_get(udata, req.cq_va,
+		cq->umem = ib_umem_get(&rdev->ibdev, req.cq_va,
 				       entries * sizeof(struct cq_base),
 				       IB_ACCESS_LOCAL_WRITE);
 		if (IS_ERR(cq->umem)) {
@@ -3514,7 +3516,7 @@ struct ib_mr *bnxt_re_reg_user_mr(struct ib_pd *ib_pd, u64 start, u64 length,
 	/* The fixed portion of the rkey is the same as the lkey */
 	mr->ib_mr.rkey = mr->qplib_mr.rkey;
 
-	umem = ib_umem_get(udata, start, length, mr_access_flags);
+	umem = ib_umem_get(&rdev->ibdev, start, length, mr_access_flags);
 	if (IS_ERR(umem)) {
 		dev_err(rdev_to_dev(rdev), "Failed to get umem");
 		rc = -EFAULT;
diff --git a/drivers/infiniband/hw/cxgb4/mem.c b/drivers/infiniband/hw/cxgb4/mem.c
index fe3a7e8561df..962dc97a8ff2 100644
--- a/drivers/infiniband/hw/cxgb4/mem.c
+++ b/drivers/infiniband/hw/cxgb4/mem.c
@@ -543,7 +543,7 @@ struct ib_mr *c4iw_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
 
 	mhp->rhp = rhp;
 
-	mhp->umem = ib_umem_get(udata, start, length, acc);
+	mhp->umem = ib_umem_get(pd->device, start, length, acc);
 	if (IS_ERR(mhp->umem))
 		goto err_free_skb;
 
diff --git a/drivers/infiniband/hw/efa/efa_verbs.c b/drivers/infiniband/hw/efa/efa_verbs.c
index 50c22575aed6..4822f5fa12be 100644
--- a/drivers/infiniband/hw/efa/efa_verbs.c
+++ b/drivers/infiniband/hw/efa/efa_verbs.c
@@ -1358,7 +1358,7 @@ struct ib_mr *efa_reg_mr(struct ib_pd *ibpd, u64 start, u64 length,
 	int inline_size;
 	int err;
 
-	if (udata->inlen &&
+	if (udata && udata->inlen &&
 	    !ib_is_udata_cleared(udata, 0, sizeof(udata->inlen))) {
 		ibdev_dbg(&dev->ibdev,
 			  "Incompatible ABI params, udata not cleared\n");
@@ -1384,7 +1384,7 @@ struct ib_mr *efa_reg_mr(struct ib_pd *ibpd, u64 start, u64 length,
 		goto err_out;
 	}
 
-	mr->umem = ib_umem_get(udata, start, length, access_flags);
+	mr->umem = ib_umem_get(ibpd->device, start, length, access_flags);
 	if (IS_ERR(mr->umem)) {
 		err = PTR_ERR(mr->umem);
 		ibdev_dbg(&dev->ibdev,
diff --git a/drivers/infiniband/hw/hns/hns_roce_cq.c b/drivers/infiniband/hw/hns/hns_roce_cq.c
index af1d8823b3f0..a2d1e5331bf1 100644
--- a/drivers/infiniband/hw/hns/hns_roce_cq.c
+++ b/drivers/infiniband/hw/hns/hns_roce_cq.c
@@ -163,7 +163,7 @@ static int get_cq_umem(struct hns_roce_dev *hr_dev, struct hns_roce_cq *hr_cq,
 	u32 npages;
 	int ret;
 
-	*umem = ib_umem_get(udata, ucmd.buf_addr, buf->size,
+	*umem = ib_umem_get(&hr_dev->ib_dev, ucmd.buf_addr, buf->size,
 			    IB_ACCESS_LOCAL_WRITE);
 	if (IS_ERR(*umem))
 		return PTR_ERR(*umem);
diff --git a/drivers/infiniband/hw/hns/hns_roce_db.c b/drivers/infiniband/hw/hns/hns_roce_db.c
index 10af6958ab69..bff6abdccfb0 100644
--- a/drivers/infiniband/hw/hns/hns_roce_db.c
+++ b/drivers/infiniband/hw/hns/hns_roce_db.c
@@ -31,7 +31,8 @@ int hns_roce_db_map_user(struct hns_roce_ucontext *context,
 
 	refcount_set(&page->refcount, 1);
 	page->user_virt = page_addr;
-	page->umem = ib_umem_get(udata, page_addr, PAGE_SIZE, 0);
+	page->umem = ib_umem_get(context->ibucontext.device, page_addr,
+				 PAGE_SIZE, 0);
 	if (IS_ERR(page->umem)) {
 		ret = PTR_ERR(page->umem);
 		kfree(page);
diff --git a/drivers/infiniband/hw/hns/hns_roce_mr.c b/drivers/infiniband/hw/hns/hns_roce_mr.c
index 9ad19170c3f9..3ff610549c74 100644
--- a/drivers/infiniband/hw/hns/hns_roce_mr.c
+++ b/drivers/infiniband/hw/hns/hns_roce_mr.c
@@ -1145,7 +1145,7 @@ struct ib_mr *hns_roce_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
 	if (!mr)
 		return ERR_PTR(-ENOMEM);
 
-	mr->umem = ib_umem_get(udata, start, length, access_flags);
+	mr->umem = ib_umem_get(pd->device, start, length, access_flags);
 	if (IS_ERR(mr->umem)) {
 		ret = PTR_ERR(mr->umem);
 		goto err_free;
@@ -1230,7 +1230,7 @@ static int rereg_mr_trans(struct ib_mr *ibmr, int flags,
 	}
 	ib_umem_release(mr->umem);
 
-	mr->umem = ib_umem_get(udata, start, length, mr_access_flags);
+	mr->umem = ib_umem_get(ibmr->device, start, length, mr_access_flags);
 	if (IS_ERR(mr->umem)) {
 		ret = PTR_ERR(mr->umem);
 		mr->umem = NULL;
diff --git a/drivers/infiniband/hw/hns/hns_roce_qp.c b/drivers/infiniband/hw/hns/hns_roce_qp.c
index a6565b674801..eb2ee6a581aa 100644
--- a/drivers/infiniband/hw/hns/hns_roce_qp.c
+++ b/drivers/infiniband/hw/hns/hns_roce_qp.c
@@ -744,7 +744,7 @@ static int hns_roce_create_qp_common(struct hns_roce_dev *hr_dev,
 			goto err_alloc_rq_inline_buf;
 		}
 
-		hr_qp->umem = ib_umem_get(udata, ucmd.buf_addr,
+		hr_qp->umem = ib_umem_get(ib_pd->device, ucmd.buf_addr,
 					  hr_qp->buff_size, 0);
 		if (IS_ERR(hr_qp->umem)) {
 			dev_err(dev, "ib_umem_get error for create qp\n");
diff --git a/drivers/infiniband/hw/hns/hns_roce_srq.c b/drivers/infiniband/hw/hns/hns_roce_srq.c
index 7113ebfdb4f0..c6d5f06f9cde 100644
--- a/drivers/infiniband/hw/hns/hns_roce_srq.c
+++ b/drivers/infiniband/hw/hns/hns_roce_srq.c
@@ -186,7 +186,8 @@ static int create_user_srq(struct hns_roce_srq *srq, struct ib_udata *udata,
 	if (ib_copy_from_udata(&ucmd, udata, sizeof(ucmd)))
 		return -EFAULT;
 
-	srq->umem = ib_umem_get(udata, ucmd.buf_addr, srq_buf_size, 0);
+	srq->umem =
+		ib_umem_get(srq->ibsrq.device, ucmd.buf_addr, srq_buf_size, 0);
 	if (IS_ERR(srq->umem))
 		return PTR_ERR(srq->umem);
 
@@ -205,7 +206,7 @@ static int create_user_srq(struct hns_roce_srq *srq, struct ib_udata *udata,
 		goto err_user_srq_mtt;
 
 	/* config index queue BA */
-	srq->idx_que.umem = ib_umem_get(udata, ucmd.que_addr,
+	srq->idx_que.umem = ib_umem_get(srq->ibsrq.device, ucmd.que_addr,
 					srq->idx_que.buf_size, 0);
 	if (IS_ERR(srq->idx_que.umem)) {
 		dev_err(hr_dev->dev, "ib_umem_get error for index queue\n");
diff --git a/drivers/infiniband/hw/i40iw/i40iw_verbs.c b/drivers/infiniband/hw/i40iw/i40iw_verbs.c
index dbd96d029d8b..c335de91508f 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_verbs.c
+++ b/drivers/infiniband/hw/i40iw/i40iw_verbs.c
@@ -1756,12 +1756,15 @@ static struct ib_mr *i40iw_reg_user_mr(struct ib_pd *pd,
 	int ret;
 	int pg_shift;
 
+	if (!udata)
+		return ERR_PTR(-EOPNOTSUPP);
+
 	if (iwdev->closing)
 		return ERR_PTR(-ENODEV);
 
 	if (length > I40IW_MAX_MR_SIZE)
 		return ERR_PTR(-EINVAL);
-	region = ib_umem_get(udata, start, length, acc);
+	region = ib_umem_get(pd->device, start, length, acc);
 	if (IS_ERR(region))
 		return (struct ib_mr *)region;
 
diff --git a/drivers/infiniband/hw/mlx4/cq.c b/drivers/infiniband/hw/mlx4/cq.c
index 306b21281fa2..a57033d4b0e5 100644
--- a/drivers/infiniband/hw/mlx4/cq.c
+++ b/drivers/infiniband/hw/mlx4/cq.c
@@ -144,7 +144,7 @@ static int mlx4_ib_get_cq_umem(struct mlx4_ib_dev *dev, struct ib_udata *udata,
 	int shift;
 	int n;
 
-	*umem = ib_umem_get(udata, buf_addr, cqe * cqe_size,
+	*umem = ib_umem_get(&dev->ib_dev, buf_addr, cqe * cqe_size,
 			    IB_ACCESS_LOCAL_WRITE);
 	if (IS_ERR(*umem))
 		return PTR_ERR(*umem);
diff --git a/drivers/infiniband/hw/mlx4/doorbell.c b/drivers/infiniband/hw/mlx4/doorbell.c
index 714f9df5bf39..d41f03ccb0e1 100644
--- a/drivers/infiniband/hw/mlx4/doorbell.c
+++ b/drivers/infiniband/hw/mlx4/doorbell.c
@@ -64,7 +64,8 @@ int mlx4_ib_db_map_user(struct ib_udata *udata, unsigned long virt,
 
 	page->user_virt = (virt & PAGE_MASK);
 	page->refcnt    = 0;
-	page->umem = ib_umem_get(udata, virt & PAGE_MASK, PAGE_SIZE, 0);
+	page->umem = ib_umem_get(context->ibucontext.device, virt & PAGE_MASK,
+				 PAGE_SIZE, 0);
 	if (IS_ERR(page->umem)) {
 		err = PTR_ERR(page->umem);
 		kfree(page);
diff --git a/drivers/infiniband/hw/mlx4/mr.c b/drivers/infiniband/hw/mlx4/mr.c
index dfa17bcdcdbc..b0121c90c561 100644
--- a/drivers/infiniband/hw/mlx4/mr.c
+++ b/drivers/infiniband/hw/mlx4/mr.c
@@ -367,7 +367,7 @@ int mlx4_ib_umem_calc_optimal_mtt_size(struct ib_umem *umem, u64 start_va,
 	return block_shift;
 }
 
-static struct ib_umem *mlx4_get_umem_mr(struct ib_udata *udata, u64 start,
+static struct ib_umem *mlx4_get_umem_mr(struct ib_device *device, u64 start,
 					u64 length, int access_flags)
 {
 	/*
@@ -398,7 +398,7 @@ static struct ib_umem *mlx4_get_umem_mr(struct ib_udata *udata, u64 start,
 		up_read(&current->mm->mmap_sem);
 	}
 
-	return ib_umem_get(udata, start, length, access_flags);
+	return ib_umem_get(device, start, length, access_flags);
 }
 
 struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
@@ -415,7 +415,7 @@ struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
 	if (!mr)
 		return ERR_PTR(-ENOMEM);
 
-	mr->umem = mlx4_get_umem_mr(udata, start, length, access_flags);
+	mr->umem = mlx4_get_umem_mr(pd->device, start, length, access_flags);
 	if (IS_ERR(mr->umem)) {
 		err = PTR_ERR(mr->umem);
 		goto err_free;
@@ -504,7 +504,7 @@ int mlx4_ib_rereg_user_mr(struct ib_mr *mr, int flags,
 
 		mlx4_mr_rereg_mem_cleanup(dev->dev, &mmr->mmr);
 		ib_umem_release(mmr->umem);
-		mmr->umem = mlx4_get_umem_mr(udata, start, length,
+		mmr->umem = mlx4_get_umem_mr(mr->device, start, length,
 					     mr_access_flags);
 		if (IS_ERR(mmr->umem)) {
 			err = PTR_ERR(mmr->umem);
diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index 85f57b76e446..cb23cdb9389a 100644
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -916,7 +916,7 @@ static int create_rq(struct ib_pd *pd, struct ib_qp_init_attr *init_attr,
 	qp->buf_size = (qp->rq.wqe_cnt << qp->rq.wqe_shift) +
 		       (qp->sq.wqe_cnt << qp->sq.wqe_shift);
 
-	qp->umem = ib_umem_get(udata, wq.buf_addr, qp->buf_size, 0);
+	qp->umem = ib_umem_get(pd->device, wq.buf_addr, qp->buf_size, 0);
 	if (IS_ERR(qp->umem)) {
 		err = PTR_ERR(qp->umem);
 		goto err;
@@ -1110,7 +1110,8 @@ static int create_qp_common(struct ib_pd *pd, struct ib_qp_init_attr *init_attr,
 		if (err)
 			goto err;
 
-		qp->umem = ib_umem_get(udata, ucmd.buf_addr, qp->buf_size, 0);
+		qp->umem =
+			ib_umem_get(pd->device, ucmd.buf_addr, qp->buf_size, 0);
 		if (IS_ERR(qp->umem)) {
 			err = PTR_ERR(qp->umem);
 			goto err;
diff --git a/drivers/infiniband/hw/mlx4/srq.c b/drivers/infiniband/hw/mlx4/srq.c
index 8dcf6e3d9ae2..8f9d5035142d 100644
--- a/drivers/infiniband/hw/mlx4/srq.c
+++ b/drivers/infiniband/hw/mlx4/srq.c
@@ -110,7 +110,8 @@ int mlx4_ib_create_srq(struct ib_srq *ib_srq,
 		if (ib_copy_from_udata(&ucmd, udata, sizeof(ucmd)))
 			return -EFAULT;
 
-		srq->umem = ib_umem_get(udata, ucmd.buf_addr, buf_size, 0);
+		srq->umem =
+			ib_umem_get(ib_srq->device, ucmd.buf_addr, buf_size, 0);
 		if (IS_ERR(srq->umem))
 			return PTR_ERR(srq->umem);
 
diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c
index dd8d24ee8e1d..367a71bc5f4b 100644
--- a/drivers/infiniband/hw/mlx5/cq.c
+++ b/drivers/infiniband/hw/mlx5/cq.c
@@ -708,8 +708,8 @@ static int create_cq_user(struct mlx5_ib_dev *dev, struct ib_udata *udata,
 	*cqe_size = ucmd.cqe_size;
 
 	cq->buf.umem =
-		ib_umem_get(udata, ucmd.buf_addr, entries * ucmd.cqe_size,
-			    IB_ACCESS_LOCAL_WRITE);
+		ib_umem_get(&dev->ib_dev, ucmd.buf_addr,
+			    entries * ucmd.cqe_size, IB_ACCESS_LOCAL_WRITE);
 	if (IS_ERR(cq->buf.umem)) {
 		err = PTR_ERR(cq->buf.umem);
 		return err;
@@ -1108,7 +1108,7 @@ static int resize_user(struct mlx5_ib_dev *dev, struct mlx5_ib_cq *cq,
 	if (ucmd.cqe_size && SIZE_MAX / ucmd.cqe_size <= entries - 1)
 		return -EINVAL;
 
-	umem = ib_umem_get(udata, ucmd.buf_addr,
+	umem = ib_umem_get(&dev->ib_dev, ucmd.buf_addr,
 			   (size_t)ucmd.cqe_size * entries,
 			   IB_ACCESS_LOCAL_WRITE);
 	if (IS_ERR(umem)) {
diff --git a/drivers/infiniband/hw/mlx5/devx.c b/drivers/infiniband/hw/mlx5/devx.c
index 9d0a18cf9e5e..685b8ed96b4e 100644
--- a/drivers/infiniband/hw/mlx5/devx.c
+++ b/drivers/infiniband/hw/mlx5/devx.c
@@ -2134,7 +2134,7 @@ static int devx_umem_get(struct mlx5_ib_dev *dev, struct ib_ucontext *ucontext,
 	if (err)
 		return err;
 
-	obj->umem = ib_umem_get(&attrs->driver_udata, addr, size, access);
+	obj->umem = ib_umem_get(&dev->ib_dev, addr, size, access);
 	if (IS_ERR(obj->umem))
 		return PTR_ERR(obj->umem);
 
diff --git a/drivers/infiniband/hw/mlx5/doorbell.c b/drivers/infiniband/hw/mlx5/doorbell.c
index 12737c509aa2..61475b571531 100644
--- a/drivers/infiniband/hw/mlx5/doorbell.c
+++ b/drivers/infiniband/hw/mlx5/doorbell.c
@@ -64,7 +64,8 @@ int mlx5_ib_db_map_user(struct mlx5_ib_ucontext *context,
 
 	page->user_virt = (virt & PAGE_MASK);
 	page->refcnt    = 0;
-	page->umem = ib_umem_get(udata, virt & PAGE_MASK, PAGE_SIZE, 0);
+	page->umem = ib_umem_get(context->ibucontext.device, virt & PAGE_MASK,
+				 PAGE_SIZE, 0);
 	if (IS_ERR(page->umem)) {
 		err = PTR_ERR(page->umem);
 		kfree(page);
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index 90489c5f0c6f..904d508cc823 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -815,6 +815,7 @@ static int mlx5_ib_query_device(struct ib_device *ibdev,
 				struct ib_device_attr *props,
 				struct ib_udata *uhw)
 {
+	size_t uhw_outlen = (uhw) ? uhw->outlen : 0;
 	struct mlx5_ib_dev *dev = to_mdev(ibdev);
 	struct mlx5_core_dev *mdev = dev->mdev;
 	int err = -ENOMEM;
@@ -828,12 +829,12 @@ static int mlx5_ib_query_device(struct ib_device *ibdev,
 	u64 max_tso;
 
 	resp_len = sizeof(resp.comp_mask) + sizeof(resp.response_length);
-	if (uhw->outlen && uhw->outlen < resp_len)
+	if (uhw_outlen && uhw_outlen < resp_len)
 		return -EINVAL;
 
 	resp.response_length = resp_len;
 
-	if (uhw->inlen && !ib_is_udata_cleared(uhw, 0, uhw->inlen))
+	if (uhw && uhw->inlen && !ib_is_udata_cleared(uhw, 0, uhw->inlen))
 		return -EINVAL;
 
 	memset(props, 0, sizeof(*props));
@@ -897,7 +898,7 @@ static int mlx5_ib_query_device(struct ib_device *ibdev,
 			props->raw_packet_caps |=
 				IB_RAW_PACKET_CAP_CVLAN_STRIPPING;
 
-		if (field_avail(typeof(resp), tso_caps, uhw->outlen)) {
+		if (field_avail(typeof(resp), tso_caps, uhw_outlen)) {
 			max_tso = MLX5_CAP_ETH(mdev, max_lso_cap);
 			if (max_tso) {
 				resp.tso_caps.max_tso = 1 << max_tso;
@@ -907,7 +908,7 @@ static int mlx5_ib_query_device(struct ib_device *ibdev,
 			}
 		}
 
-		if (field_avail(typeof(resp), rss_caps, uhw->outlen)) {
+		if (field_avail(typeof(resp), rss_caps, uhw_outlen)) {
 			resp.rss_caps.rx_hash_function =
 						MLX5_RX_HASH_FUNC_TOEPLITZ;
 			resp.rss_caps.rx_hash_fields_mask =
@@ -927,9 +928,9 @@ static int mlx5_ib_query_device(struct ib_device *ibdev,
 			resp.response_length += sizeof(resp.rss_caps);
 		}
 	} else {
-		if (field_avail(typeof(resp), tso_caps, uhw->outlen))
+		if (field_avail(typeof(resp), tso_caps, uhw_outlen))
 			resp.response_length += sizeof(resp.tso_caps);
-		if (field_avail(typeof(resp), rss_caps, uhw->outlen))
+		if (field_avail(typeof(resp), rss_caps, uhw_outlen))
 			resp.response_length += sizeof(resp.rss_caps);
 	}
 
@@ -1014,6 +1015,23 @@ static int mlx5_ib_query_device(struct ib_device *ibdev,
 		if (dev->odp_caps.general_caps & IB_ODP_SUPPORT)
 			props->device_cap_flags |= IB_DEVICE_ON_DEMAND_PAGING;
 		props->odp_caps = dev->odp_caps;
+		if (!uhw) {
+			/* ODP for kernel QPs is not implemented for receive
+			 * WQEs and SRQ WQEs
+			 */
+			props->odp_caps.per_transport_caps.rc_odp_caps &=
+				~(IB_ODP_SUPPORT_READ |
+				  IB_ODP_SUPPORT_SRQ_RECV);
+			props->odp_caps.per_transport_caps.uc_odp_caps &=
+				~(IB_ODP_SUPPORT_READ |
+				  IB_ODP_SUPPORT_SRQ_RECV);
+			props->odp_caps.per_transport_caps.ud_odp_caps &=
+				~(IB_ODP_SUPPORT_READ |
+				  IB_ODP_SUPPORT_SRQ_RECV);
+			props->odp_caps.per_transport_caps.xrc_odp_caps &=
+				~(IB_ODP_SUPPORT_READ |
+				  IB_ODP_SUPPORT_SRQ_RECV);
+		}
 	}
 
 	if (MLX5_CAP_GEN(mdev, cd))
@@ -1054,7 +1072,7 @@ static int mlx5_ib_query_device(struct ib_device *ibdev,
 						MLX5_MAX_CQ_PERIOD;
 	}
 
-	if (field_avail(typeof(resp), cqe_comp_caps, uhw->outlen)) {
+	if (field_avail(typeof(resp), cqe_comp_caps, uhw_outlen)) {
 		resp.response_length += sizeof(resp.cqe_comp_caps);
 
 		if (MLX5_CAP_GEN(dev->mdev, cqe_compression)) {
@@ -1072,7 +1090,7 @@ static int mlx5_ib_query_device(struct ib_device *ibdev,
 		}
 	}
 
-	if (field_avail(typeof(resp), packet_pacing_caps, uhw->outlen) &&
+	if (field_avail(typeof(resp), packet_pacing_caps, uhw_outlen) &&
 	    raw_support) {
 		if (MLX5_CAP_QOS(mdev, packet_pacing) &&
 		    MLX5_CAP_GEN(mdev, qos)) {
@@ -1091,7 +1109,7 @@ static int mlx5_ib_query_device(struct ib_device *ibdev,
 	}
 
 	if (field_avail(typeof(resp), mlx5_ib_support_multi_pkt_send_wqes,
-			uhw->outlen)) {
+			uhw_outlen)) {
 		if (MLX5_CAP_ETH(mdev, multi_pkt_send_wqe))
 			resp.mlx5_ib_support_multi_pkt_send_wqes =
 				MLX5_IB_ALLOW_MPW;
@@ -1104,7 +1122,7 @@ static int mlx5_ib_query_device(struct ib_device *ibdev,
 			sizeof(resp.mlx5_ib_support_multi_pkt_send_wqes);
 	}
 
-	if (field_avail(typeof(resp), flags, uhw->outlen)) {
+	if (field_avail(typeof(resp), flags, uhw_outlen)) {
 		resp.response_length += sizeof(resp.flags);
 
 		if (MLX5_CAP_GEN(mdev, cqe_compression_128))
@@ -1120,8 +1138,7 @@ static int mlx5_ib_query_device(struct ib_device *ibdev,
 		resp.flags |= MLX5_IB_QUERY_DEV_RESP_FLAGS_SCAT2CQE_DCT;
 	}
 
-	if (field_avail(typeof(resp), sw_parsing_caps,
-			uhw->outlen)) {
+	if (field_avail(typeof(resp), sw_parsing_caps, uhw_outlen)) {
 		resp.response_length += sizeof(resp.sw_parsing_caps);
 		if (MLX5_CAP_ETH(mdev, swp)) {
 			resp.sw_parsing_caps.sw_parsing_offloads |=
@@ -1141,7 +1158,7 @@ static int mlx5_ib_query_device(struct ib_device *ibdev,
 		}
 	}
 
-	if (field_avail(typeof(resp), striding_rq_caps, uhw->outlen) &&
+	if (field_avail(typeof(resp), striding_rq_caps, uhw_outlen) &&
 	    raw_support) {
 		resp.response_length += sizeof(resp.striding_rq_caps);
 		if (MLX5_CAP_GEN(mdev, striding_rq)) {
@@ -1164,8 +1181,7 @@ static int mlx5_ib_query_device(struct ib_device *ibdev,
 		}
 	}
 
-	if (field_avail(typeof(resp), tunnel_offloads_caps,
-			uhw->outlen)) {
+	if (field_avail(typeof(resp), tunnel_offloads_caps, uhw_outlen)) {
 		resp.response_length += sizeof(resp.tunnel_offloads_caps);
 		if (MLX5_CAP_ETH(mdev, tunnel_stateless_vxlan))
 			resp.tunnel_offloads_caps |=
@@ -1186,7 +1202,7 @@ static int mlx5_ib_query_device(struct ib_device *ibdev,
 				MLX5_IB_TUNNELED_OFFLOADS_MPLS_UDP;
 	}
 
-	if (uhw->outlen) {
+	if (uhw_outlen) {
 		err = ib_copy_to_udata(uhw, &resp, resp.response_length);
 
 		if (err)
@@ -4773,7 +4789,6 @@ static int __get_port_caps(struct mlx5_ib_dev *dev, u8 port)
 	struct ib_device_attr *dprops = NULL;
 	struct ib_port_attr *pprops = NULL;
 	int err = -ENOMEM;
-	struct ib_udata uhw = {.inlen = 0, .outlen = 0};
 
 	pprops = kzalloc(sizeof(*pprops), GFP_KERNEL);
 	if (!pprops)
@@ -4783,7 +4798,7 @@ static int __get_port_caps(struct mlx5_ib_dev *dev, u8 port)
 	if (!dprops)
 		goto out;
 
-	err = mlx5_ib_query_device(&dev->ib_dev, dprops, &uhw);
+	err = mlx5_ib_query_device(&dev->ib_dev, dprops, NULL);
 	if (err) {
 		mlx5_ib_warn(dev, "query_device failed %d\n", err);
 		goto out;
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h
index b06f32ff5748..77d495b2032d 100644
--- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
+++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
@@ -1153,12 +1153,12 @@ int mlx5_ib_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr,
 		      const struct ib_send_wr **bad_wr);
 int mlx5_ib_post_recv(struct ib_qp *ibqp, const struct ib_recv_wr *wr,
 		      const struct ib_recv_wr **bad_wr);
-int mlx5_ib_read_user_wqe_sq(struct mlx5_ib_qp *qp, int wqe_index, void *buffer,
-			     int buflen, size_t *bc);
-int mlx5_ib_read_user_wqe_rq(struct mlx5_ib_qp *qp, int wqe_index, void *buffer,
-			     int buflen, size_t *bc);
-int mlx5_ib_read_user_wqe_srq(struct mlx5_ib_srq *srq, int wqe_index,
-			      void *buffer, int buflen, size_t *bc);
+int mlx5_ib_read_wqe_sq(struct mlx5_ib_qp *qp, int wqe_index, void *buffer,
+			size_t buflen, size_t *bc);
+int mlx5_ib_read_wqe_rq(struct mlx5_ib_qp *qp, int wqe_index, void *buffer,
+			size_t buflen, size_t *bc);
+int mlx5_ib_read_wqe_srq(struct mlx5_ib_srq *srq, int wqe_index, void *buffer,
+			 size_t buflen, size_t *bc);
 int mlx5_ib_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
 		      struct ib_udata *udata);
 void mlx5_ib_destroy_cq(struct ib_cq *cq, struct ib_udata *udata);
diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c
index ea8bfc3e2d8d..44a0ee6bd9f1 100644
--- a/drivers/infiniband/hw/mlx5/mr.c
+++ b/drivers/infiniband/hw/mlx5/mr.c
@@ -737,10 +737,9 @@ static int mr_cache_max_order(struct mlx5_ib_dev *dev)
 	return MLX5_MAX_UMR_SHIFT;
 }
 
-static int mr_umem_get(struct mlx5_ib_dev *dev, struct ib_udata *udata,
-		       u64 start, u64 length, int access_flags,
-		       struct ib_umem **umem, int *npages, int *page_shift,
-		       int *ncont, int *order)
+static int mr_umem_get(struct mlx5_ib_dev *dev, u64 start, u64 length,
+		       int access_flags, struct ib_umem **umem, int *npages,
+		       int *page_shift, int *ncont, int *order)
 {
 	struct ib_umem *u;
 
@@ -749,7 +748,7 @@ static int mr_umem_get(struct mlx5_ib_dev *dev, struct ib_udata *udata,
 	if (access_flags & IB_ACCESS_ON_DEMAND) {
 		struct ib_umem_odp *odp;
 
-		odp = ib_umem_odp_get(udata, start, length, access_flags,
+		odp = ib_umem_odp_get(&dev->ib_dev, start, length, access_flags,
 				      &mlx5_mn_ops);
 		if (IS_ERR(odp)) {
 			mlx5_ib_dbg(dev, "umem get failed (%ld)\n",
@@ -765,7 +764,7 @@ static int mr_umem_get(struct mlx5_ib_dev *dev, struct ib_udata *udata,
 		if (order)
 			*order = ilog2(roundup_pow_of_two(*ncont));
 	} else {
-		u = ib_umem_get(udata, start, length, access_flags);
+		u = ib_umem_get(&dev->ib_dev, start, length, access_flags);
 		if (IS_ERR(u)) {
 			mlx5_ib_dbg(dev, "umem get failed (%ld)\n", PTR_ERR(u));
 			return PTR_ERR(u);
@@ -1247,6 +1246,8 @@ struct ib_mr *mlx5_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
 
 	if (IS_ENABLED(CONFIG_INFINIBAND_ON_DEMAND_PAGING) && !start &&
 	    length == U64_MAX) {
+		if (virt_addr != start)
+			return ERR_PTR(-EINVAL);
 		if (!(access_flags & IB_ACCESS_ON_DEMAND) ||
 		    !(dev->odp_caps.general_caps & IB_ODP_SUPPORT_IMPLICIT))
 			return ERR_PTR(-EINVAL);
@@ -1257,7 +1258,7 @@ struct ib_mr *mlx5_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
 		return &mr->ibmr;
 	}
 
-	err = mr_umem_get(dev, udata, start, length, access_flags, &umem,
+	err = mr_umem_get(dev, start, length, access_flags, &umem,
 			  &npages, &page_shift, &ncont, &order);
 
 	if (err < 0)
@@ -1424,9 +1425,8 @@ int mlx5_ib_rereg_user_mr(struct ib_mr *ib_mr, int flags, u64 start,
 		flags |= IB_MR_REREG_TRANS;
 		ib_umem_release(mr->umem);
 		mr->umem = NULL;
-		err = mr_umem_get(dev, udata, addr, len, access_flags,
-				  &mr->umem, &npages, &page_shift, &ncont,
-				  &order);
+		err = mr_umem_get(dev, addr, len, access_flags, &mr->umem,
+				  &npages, &page_shift, &ncont, &order);
 		if (err)
 			goto err;
 	}
diff --git a/drivers/infiniband/hw/mlx5/odp.c b/drivers/infiniband/hw/mlx5/odp.c
index f924250f80c2..0afb0042bd53 100644
--- a/drivers/infiniband/hw/mlx5/odp.c
+++ b/drivers/infiniband/hw/mlx5/odp.c
@@ -497,7 +497,7 @@ struct mlx5_ib_mr *mlx5_ib_alloc_implicit_mr(struct mlx5_ib_pd *pd,
 	struct mlx5_ib_mr *imr;
 	int err;
 
-	umem_odp = ib_umem_odp_alloc_implicit(udata, access_flags);
+	umem_odp = ib_umem_odp_alloc_implicit(&dev->ib_dev, access_flags);
 	if (IS_ERR(umem_odp))
 		return ERR_CAST(umem_odp);
 
@@ -624,11 +624,10 @@ static int pagefault_real_mr(struct mlx5_ib_mr *mr, struct ib_umem_odp *odp,
 	bool downgrade = flags & MLX5_PF_FLAGS_DOWNGRADE;
 	unsigned long current_seq;
 	u64 access_mask;
-	u64 start_idx, page_mask;
+	u64 start_idx;
 
 	page_shift = odp->page_shift;
-	page_mask = ~(BIT(page_shift) - 1);
-	start_idx = (user_va - (mr->mmkey.iova & page_mask)) >> page_shift;
+	start_idx = (user_va - ib_umem_start(odp)) >> page_shift;
 	access_mask = ODP_READ_ALLOWED_BIT;
 
 	if (odp->umem.writable && !downgrade)
@@ -767,11 +766,19 @@ static int pagefault_mr(struct mlx5_ib_mr *mr, u64 io_virt, size_t bcnt,
 {
 	struct ib_umem_odp *odp = to_ib_umem_odp(mr->umem);
 
+	if (unlikely(io_virt < mr->mmkey.iova))
+		return -EFAULT;
+
 	if (!odp->is_implicit_odp) {
-		if (unlikely(io_virt < ib_umem_start(odp) ||
-			     ib_umem_end(odp) - io_virt < bcnt))
+		u64 user_va;
+
+		if (check_add_overflow(io_virt - mr->mmkey.iova,
+				       (u64)odp->umem.address, &user_va))
 			return -EFAULT;
-		return pagefault_real_mr(mr, odp, io_virt, bcnt, bytes_mapped,
+		if (unlikely(user_va >= ib_umem_end(odp) ||
+			     ib_umem_end(odp) - user_va < bcnt))
+			return -EFAULT;
+		return pagefault_real_mr(mr, odp, user_va, bcnt, bytes_mapped,
 					 flags);
 	}
 	return pagefault_implicit_mr(mr, odp, io_virt, bcnt, bytes_mapped,
@@ -1237,15 +1244,15 @@ static void mlx5_ib_mr_wqe_pfault_handler(struct mlx5_ib_dev *dev,
 	wqe = wqe_start;
 	qp = (res->res == MLX5_RES_QP) ? res_to_qp(res) : NULL;
 	if (qp && sq) {
-		ret = mlx5_ib_read_user_wqe_sq(qp, wqe_index, wqe, PAGE_SIZE,
-					       &bytes_copied);
+		ret = mlx5_ib_read_wqe_sq(qp, wqe_index, wqe, PAGE_SIZE,
+					  &bytes_copied);
 		if (ret)
 			goto read_user;
 		ret = mlx5_ib_mr_initiator_pfault_handler(
 			dev, pfault, qp, &wqe, &wqe_end, bytes_copied);
 	} else if (qp && !sq) {
-		ret = mlx5_ib_read_user_wqe_rq(qp, wqe_index, wqe, PAGE_SIZE,
-					       &bytes_copied);
+		ret = mlx5_ib_read_wqe_rq(qp, wqe_index, wqe, PAGE_SIZE,
+					  &bytes_copied);
 		if (ret)
 			goto read_user;
 		ret = mlx5_ib_mr_responder_pfault_handler_rq(
@@ -1253,8 +1260,8 @@ static void mlx5_ib_mr_wqe_pfault_handler(struct mlx5_ib_dev *dev,
 	} else if (!qp) {
 		struct mlx5_ib_srq *srq = res_to_srq(res);
 
-		ret = mlx5_ib_read_user_wqe_srq(srq, wqe_index, wqe, PAGE_SIZE,
-						&bytes_copied);
+		ret = mlx5_ib_read_wqe_srq(srq, wqe_index, wqe, PAGE_SIZE,
+					   &bytes_copied);
 		if (ret)
 			goto read_user;
 		ret = mlx5_ib_mr_responder_pfault_handler_srq(
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index 7e51870e9e01..ae7cbd9c9bca 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -129,14 +129,10 @@ static int is_sqp(enum ib_qp_type qp_type)
  *
  * Return: zero on success, or an error code.
  */
-static int mlx5_ib_read_user_wqe_common(struct ib_umem *umem,
-					void *buffer,
-					u32 buflen,
-					int wqe_index,
-					int wq_offset,
-					int wq_wqe_cnt,
-					int wq_wqe_shift,
-					int bcnt,
+static int mlx5_ib_read_user_wqe_common(struct ib_umem *umem, void *buffer,
+					size_t buflen, int wqe_index,
+					int wq_offset, int wq_wqe_cnt,
+					int wq_wqe_shift, int bcnt,
 					size_t *bytes_copied)
 {
 	size_t offset = wq_offset + ((wqe_index % wq_wqe_cnt) << wq_wqe_shift);
@@ -160,11 +156,43 @@ static int mlx5_ib_read_user_wqe_common(struct ib_umem *umem,
 	return 0;
 }
 
-int mlx5_ib_read_user_wqe_sq(struct mlx5_ib_qp *qp,
-			     int wqe_index,
-			     void *buffer,
-			     int buflen,
-			     size_t *bc)
+static int mlx5_ib_read_kernel_wqe_sq(struct mlx5_ib_qp *qp, int wqe_index,
+				      void *buffer, size_t buflen, size_t *bc)
+{
+	struct mlx5_wqe_ctrl_seg *ctrl;
+	size_t bytes_copied = 0;
+	size_t wqe_length;
+	void *p;
+	int ds;
+
+	wqe_index = wqe_index & qp->sq.fbc.sz_m1;
+
+	/* read the control segment first */
+	p = mlx5_frag_buf_get_wqe(&qp->sq.fbc, wqe_index);
+	ctrl = p;
+	ds = be32_to_cpu(ctrl->qpn_ds) & MLX5_WQE_CTRL_DS_MASK;
+	wqe_length = ds * MLX5_WQE_DS_UNITS;
+
+	/* read rest of WQE if it spreads over more than one stride */
+	while (bytes_copied < wqe_length) {
+		size_t copy_length =
+			min_t(size_t, buflen - bytes_copied, MLX5_SEND_WQE_BB);
+
+		if (!copy_length)
+			break;
+
+		memcpy(buffer + bytes_copied, p, copy_length);
+		bytes_copied += copy_length;
+
+		wqe_index = (wqe_index + 1) & qp->sq.fbc.sz_m1;
+		p = mlx5_frag_buf_get_wqe(&qp->sq.fbc, wqe_index);
+	}
+	*bc = bytes_copied;
+	return 0;
+}
+
+static int mlx5_ib_read_user_wqe_sq(struct mlx5_ib_qp *qp, int wqe_index,
+				    void *buffer, size_t buflen, size_t *bc)
 {
 	struct mlx5_ib_qp_base *base = &qp->trans_qp.base;
 	struct ib_umem *umem = base->ubuffer.umem;
@@ -176,18 +204,10 @@ int mlx5_ib_read_user_wqe_sq(struct mlx5_ib_qp *qp,
 	int ret;
 	int ds;
 
-	if (buflen < sizeof(*ctrl))
-		return -EINVAL;
-
 	/* at first read as much as possible */
-	ret = mlx5_ib_read_user_wqe_common(umem,
-					   buffer,
-					   buflen,
-					   wqe_index,
-					   wq->offset,
-					   wq->wqe_cnt,
-					   wq->wqe_shift,
-					   buflen,
+	ret = mlx5_ib_read_user_wqe_common(umem, buffer, buflen, wqe_index,
+					   wq->offset, wq->wqe_cnt,
+					   wq->wqe_shift, buflen,
 					   &bytes_copied);
 	if (ret)
 		return ret;
@@ -210,13 +230,9 @@ int mlx5_ib_read_user_wqe_sq(struct mlx5_ib_qp *qp,
 	 * so read the remaining bytes starting
 	 * from  wqe_index 0
 	 */
-	ret = mlx5_ib_read_user_wqe_common(umem,
-					   buffer + bytes_copied,
-					   buflen - bytes_copied,
-					   0,
-					   wq->offset,
-					   wq->wqe_cnt,
-					   wq->wqe_shift,
+	ret = mlx5_ib_read_user_wqe_common(umem, buffer + bytes_copied,
+					   buflen - bytes_copied, 0, wq->offset,
+					   wq->wqe_cnt, wq->wqe_shift,
 					   wqe_length - bytes_copied,
 					   &bytes_copied2);
 
@@ -226,11 +242,24 @@ int mlx5_ib_read_user_wqe_sq(struct mlx5_ib_qp *qp,
 	return 0;
 }
 
-int mlx5_ib_read_user_wqe_rq(struct mlx5_ib_qp *qp,
-			     int wqe_index,
-			     void *buffer,
-			     int buflen,
-			     size_t *bc)
+int mlx5_ib_read_wqe_sq(struct mlx5_ib_qp *qp, int wqe_index, void *buffer,
+			size_t buflen, size_t *bc)
+{
+	struct mlx5_ib_qp_base *base = &qp->trans_qp.base;
+	struct ib_umem *umem = base->ubuffer.umem;
+
+	if (buflen < sizeof(struct mlx5_wqe_ctrl_seg))
+		return -EINVAL;
+
+	if (!umem)
+		return mlx5_ib_read_kernel_wqe_sq(qp, wqe_index, buffer,
+						  buflen, bc);
+
+	return mlx5_ib_read_user_wqe_sq(qp, wqe_index, buffer, buflen, bc);
+}
+
+static int mlx5_ib_read_user_wqe_rq(struct mlx5_ib_qp *qp, int wqe_index,
+				    void *buffer, size_t buflen, size_t *bc)
 {
 	struct mlx5_ib_qp_base *base = &qp->trans_qp.base;
 	struct ib_umem *umem = base->ubuffer.umem;
@@ -238,14 +267,9 @@ int mlx5_ib_read_user_wqe_rq(struct mlx5_ib_qp *qp,
 	size_t bytes_copied;
 	int ret;
 
-	ret = mlx5_ib_read_user_wqe_common(umem,
-					   buffer,
-					   buflen,
-					   wqe_index,
-					   wq->offset,
-					   wq->wqe_cnt,
-					   wq->wqe_shift,
-					   buflen,
+	ret = mlx5_ib_read_user_wqe_common(umem, buffer, buflen, wqe_index,
+					   wq->offset, wq->wqe_cnt,
+					   wq->wqe_shift, buflen,
 					   &bytes_copied);
 
 	if (ret)
@@ -254,25 +278,33 @@ int mlx5_ib_read_user_wqe_rq(struct mlx5_ib_qp *qp,
 	return 0;
 }
 
-int mlx5_ib_read_user_wqe_srq(struct mlx5_ib_srq *srq,
-			      int wqe_index,
-			      void *buffer,
-			      int buflen,
-			      size_t *bc)
+int mlx5_ib_read_wqe_rq(struct mlx5_ib_qp *qp, int wqe_index, void *buffer,
+			size_t buflen, size_t *bc)
+{
+	struct mlx5_ib_qp_base *base = &qp->trans_qp.base;
+	struct ib_umem *umem = base->ubuffer.umem;
+	struct mlx5_ib_wq *wq = &qp->rq;
+	size_t wqe_size = 1 << wq->wqe_shift;
+
+	if (buflen < wqe_size)
+		return -EINVAL;
+
+	if (!umem)
+		return -EOPNOTSUPP;
+
+	return mlx5_ib_read_user_wqe_rq(qp, wqe_index, buffer, buflen, bc);
+}
+
+static int mlx5_ib_read_user_wqe_srq(struct mlx5_ib_srq *srq, int wqe_index,
+				     void *buffer, size_t buflen, size_t *bc)
 {
 	struct ib_umem *umem = srq->umem;
 	size_t bytes_copied;
 	int ret;
 
-	ret = mlx5_ib_read_user_wqe_common(umem,
-					   buffer,
-					   buflen,
-					   wqe_index,
-					   0,
-					   srq->msrq.max,
-					   srq->msrq.wqe_shift,
-					   buflen,
-					   &bytes_copied);
+	ret = mlx5_ib_read_user_wqe_common(umem, buffer, buflen, wqe_index, 0,
+					   srq->msrq.max, srq->msrq.wqe_shift,
+					   buflen, &bytes_copied);
 
 	if (ret)
 		return ret;
@@ -280,6 +312,21 @@ int mlx5_ib_read_user_wqe_srq(struct mlx5_ib_srq *srq,
 	return 0;
 }
 
+int mlx5_ib_read_wqe_srq(struct mlx5_ib_srq *srq, int wqe_index, void *buffer,
+			 size_t buflen, size_t *bc)
+{
+	struct ib_umem *umem = srq->umem;
+	size_t wqe_size = 1 << srq->msrq.wqe_shift;
+
+	if (buflen < wqe_size)
+		return -EINVAL;
+
+	if (!umem)
+		return -EOPNOTSUPP;
+
+	return mlx5_ib_read_user_wqe_srq(srq, wqe_index, buffer, buflen, bc);
+}
+
 static void mlx5_ib_qp_event(struct mlx5_core_qp *qp, int type)
 {
 	struct ib_qp *ibqp = &to_mibqp(qp)->ibqp;
@@ -749,7 +796,7 @@ static int mlx5_ib_umem_get(struct mlx5_ib_dev *dev, struct ib_udata *udata,
 {
 	int err;
 
-	*umem = ib_umem_get(udata, addr, size, 0);
+	*umem = ib_umem_get(&dev->ib_dev, addr, size, 0);
 	if (IS_ERR(*umem)) {
 		mlx5_ib_dbg(dev, "umem_get failed\n");
 		return PTR_ERR(*umem);
@@ -806,7 +853,7 @@ static int create_user_rq(struct mlx5_ib_dev *dev, struct ib_pd *pd,
 	if (!ucmd->buf_addr)
 		return -EINVAL;
 
-	rwq->umem = ib_umem_get(udata, ucmd->buf_addr, rwq->buf_size, 0);
+	rwq->umem = ib_umem_get(&dev->ib_dev, ucmd->buf_addr, rwq->buf_size, 0);
 	if (IS_ERR(rwq->umem)) {
 		mlx5_ib_dbg(dev, "umem_get failed\n");
 		err = PTR_ERR(rwq->umem);
diff --git a/drivers/infiniband/hw/mlx5/srq.c b/drivers/infiniband/hw/mlx5/srq.c
index 62939df3c692..b1a8a9175040 100644
--- a/drivers/infiniband/hw/mlx5/srq.c
+++ b/drivers/infiniband/hw/mlx5/srq.c
@@ -80,7 +80,7 @@ static int create_srq_user(struct ib_pd *pd, struct mlx5_ib_srq *srq,
 
 	srq->wq_sig = !!(ucmd.flags & MLX5_SRQ_FLAG_SIGNATURE);
 
-	srq->umem = ib_umem_get(udata, ucmd.buf_addr, buf_size, 0);
+	srq->umem = ib_umem_get(pd->device, ucmd.buf_addr, buf_size, 0);
 	if (IS_ERR(srq->umem)) {
 		mlx5_ib_dbg(dev, "failed umem get, size %d\n", buf_size);
 		err = PTR_ERR(srq->umem);
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index 33002530fee7..ac19d57803b5 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -880,7 +880,7 @@ static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
 	if (!mr)
 		return ERR_PTR(-ENOMEM);
 
-	mr->umem = ib_umem_get(udata, start, length, acc);
+	mr->umem = ib_umem_get(pd->device, start, length, acc);
 	if (IS_ERR(mr->umem)) {
 		err = PTR_ERR(mr->umem);
 		goto err;
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
index 9bc1ca6f6f9e..d47ea675734b 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
@@ -869,7 +869,7 @@ struct ib_mr *ocrdma_reg_user_mr(struct ib_pd *ibpd, u64 start, u64 len,
 	mr = kzalloc(sizeof(*mr), GFP_KERNEL);
 	if (!mr)
 		return ERR_PTR(status);
-	mr->umem = ib_umem_get(udata, start, len, acc);
+	mr->umem = ib_umem_get(ibpd->device, start, len, acc);
 	if (IS_ERR(mr->umem)) {
 		status = -EFAULT;
 		goto umem_err;
diff --git a/drivers/infiniband/hw/qedr/verbs.c b/drivers/infiniband/hw/qedr/verbs.c
index 4cd292966aa9..920f35e28cfc 100644
--- a/drivers/infiniband/hw/qedr/verbs.c
+++ b/drivers/infiniband/hw/qedr/verbs.c
@@ -772,7 +772,7 @@ static inline int qedr_init_user_queue(struct ib_udata *udata,
 
 	q->buf_addr = buf_addr;
 	q->buf_len = buf_len;
-	q->umem = ib_umem_get(udata, q->buf_addr, q->buf_len, access);
+	q->umem = ib_umem_get(&dev->ibdev, q->buf_addr, q->buf_len, access);
 	if (IS_ERR(q->umem)) {
 		DP_ERR(dev, "create user queue: failed ib_umem_get, got %ld\n",
 		       PTR_ERR(q->umem));
@@ -1415,9 +1415,8 @@ static int qedr_init_srq_user_params(struct ib_udata *udata,
 	if (rc)
 		return rc;
 
-	srq->prod_umem =
-		ib_umem_get(udata, ureq->prod_pair_addr,
-			    sizeof(struct rdma_srq_producers), access);
+	srq->prod_umem = ib_umem_get(srq->ibsrq.device, ureq->prod_pair_addr,
+				     sizeof(struct rdma_srq_producers), access);
 	if (IS_ERR(srq->prod_umem)) {
 		qedr_free_pbl(srq->dev, &srq->usrq.pbl_info, srq->usrq.pbl_tbl);
 		ib_umem_release(srq->usrq.umem);
@@ -2839,7 +2838,7 @@ struct ib_mr *qedr_reg_user_mr(struct ib_pd *ibpd, u64 start, u64 len,
 
 	mr->type = QEDR_MR_USER;
 
-	mr->umem = ib_umem_get(udata, start, len, acc);
+	mr->umem = ib_umem_get(ibpd->device, start, len, acc);
 	if (IS_ERR(mr->umem)) {
 		rc = -EFAULT;
 		goto err0;
diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c
index a26a4fd86bf4..4f6cc0de7ef9 100644
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c
@@ -135,7 +135,7 @@ int pvrdma_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
 			goto err_cq;
 		}
 
-		cq->umem = ib_umem_get(udata, ucmd.buf_addr, ucmd.buf_size,
+		cq->umem = ib_umem_get(ibdev, ucmd.buf_addr, ucmd.buf_size,
 				       IB_ACCESS_LOCAL_WRITE);
 		if (IS_ERR(cq->umem)) {
 			ret = PTR_ERR(cq->umem);
diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_mr.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_mr.c
index c61e665ff261..b039f1f00e05 100644
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_mr.c
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_mr.c
@@ -126,7 +126,7 @@ struct ib_mr *pvrdma_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
 		return ERR_PTR(-EINVAL);
 	}
 
-	umem = ib_umem_get(udata, start, length, access_flags);
+	umem = ib_umem_get(pd->device, start, length, access_flags);
 	if (IS_ERR(umem)) {
 		dev_warn(&dev->pdev->dev,
 			 "could not get umem for mem region\n");
diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c
index f15809c28f67..9de1281f9a3b 100644
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c
@@ -276,8 +276,9 @@ struct ib_qp *pvrdma_create_qp(struct ib_pd *pd,
 
 			if (!is_srq) {
 				/* set qp->sq.wqe_cnt, shift, buf_size.. */
-				qp->rumem = ib_umem_get(udata, ucmd.rbuf_addr,
-							ucmd.rbuf_size, 0);
+				qp->rumem =
+					ib_umem_get(pd->device, ucmd.rbuf_addr,
+						    ucmd.rbuf_size, 0);
 				if (IS_ERR(qp->rumem)) {
 					ret = PTR_ERR(qp->rumem);
 					goto err_qp;
@@ -288,7 +289,7 @@ struct ib_qp *pvrdma_create_qp(struct ib_pd *pd,
 				qp->srq = to_vsrq(init_attr->srq);
 			}
 
-			qp->sumem = ib_umem_get(udata, ucmd.sbuf_addr,
+			qp->sumem = ib_umem_get(pd->device, ucmd.sbuf_addr,
 						ucmd.sbuf_size, 0);
 			if (IS_ERR(qp->sumem)) {
 				if (!is_srq)
diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_srq.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_srq.c
index 98c8be71d91d..d330decfb80a 100644
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_srq.c
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_srq.c
@@ -146,7 +146,7 @@ int pvrdma_create_srq(struct ib_srq *ibsrq, struct ib_srq_init_attr *init_attr,
 		goto err_srq;
 	}
 
-	srq->umem = ib_umem_get(udata, ucmd.buf_addr, ucmd.buf_size, 0);
+	srq->umem = ib_umem_get(ibsrq->device, ucmd.buf_addr, ucmd.buf_size, 0);
 	if (IS_ERR(srq->umem)) {
 		ret = PTR_ERR(srq->umem);
 		goto err_srq;
diff --git a/drivers/infiniband/sw/rdmavt/mr.c b/drivers/infiniband/sw/rdmavt/mr.c
index b9a76bf74857..72f6534fbb52 100644
--- a/drivers/infiniband/sw/rdmavt/mr.c
+++ b/drivers/infiniband/sw/rdmavt/mr.c
@@ -390,7 +390,7 @@ struct ib_mr *rvt_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
 	if (length == 0)
 		return ERR_PTR(-EINVAL);
 
-	umem = ib_umem_get(udata, start, length, mr_access_flags);
+	umem = ib_umem_get(pd->device, start, length, mr_access_flags);
 	if (IS_ERR(umem))
 		return (void *)umem;
 
diff --git a/drivers/infiniband/sw/rxe/rxe_mr.c b/drivers/infiniband/sw/rxe/rxe_mr.c
index 35a2baf2f364..e83c7b518bfa 100644
--- a/drivers/infiniband/sw/rxe/rxe_mr.c
+++ b/drivers/infiniband/sw/rxe/rxe_mr.c
@@ -169,7 +169,7 @@ int rxe_mem_init_user(struct rxe_pd *pd, u64 start,
 	void			*vaddr;
 	int err;
 
-	umem = ib_umem_get(udata, start, length, access);
+	umem = ib_umem_get(pd->ibpd.device, start, length, access);
 	if (IS_ERR(umem)) {
 		pr_warn("err %d from rxe_umem_get\n",
 			(int)PTR_ERR(umem));
diff --git a/include/rdma/ib_umem.h b/include/rdma/ib_umem.h
index 753f54e17e0a..e3518fd6b95b 100644
--- a/include/rdma/ib_umem.h
+++ b/include/rdma/ib_umem.h
@@ -69,7 +69,7 @@ static inline size_t ib_umem_num_pages(struct ib_umem *umem)
 
 #ifdef CONFIG_INFINIBAND_USER_MEM
 
-struct ib_umem *ib_umem_get(struct ib_udata *udata, unsigned long addr,
+struct ib_umem *ib_umem_get(struct ib_device *device, unsigned long addr,
 			    size_t size, int access);
 void ib_umem_release(struct ib_umem *umem);
 int ib_umem_page_count(struct ib_umem *umem);
@@ -83,7 +83,7 @@ unsigned long ib_umem_find_best_pgsz(struct ib_umem *umem,
 
 #include <linux/err.h>
 
-static inline struct ib_umem *ib_umem_get(struct ib_udata *udata,
+static inline struct ib_umem *ib_umem_get(struct ib_device *device,
 					  unsigned long addr, size_t size,
 					  int access)
 {
diff --git a/include/rdma/ib_umem_odp.h b/include/rdma/ib_umem_odp.h
index 81429acc8257..64314ff76612 100644
--- a/include/rdma/ib_umem_odp.h
+++ b/include/rdma/ib_umem_odp.h
@@ -114,9 +114,9 @@ static inline size_t ib_umem_odp_num_pages(struct ib_umem_odp *umem_odp)
 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
 
 struct ib_umem_odp *
-ib_umem_odp_get(struct ib_udata *udata, unsigned long addr, size_t size,
+ib_umem_odp_get(struct ib_device *device, unsigned long addr, size_t size,
 		int access, const struct mmu_interval_notifier_ops *ops);
-struct ib_umem_odp *ib_umem_odp_alloc_implicit(struct ib_udata *udata,
+struct ib_umem_odp *ib_umem_odp_alloc_implicit(struct ib_device *device,
 					       int access);
 struct ib_umem_odp *
 ib_umem_odp_alloc_child(struct ib_umem_odp *root_umem, unsigned long addr,
@@ -134,7 +134,7 @@ void ib_umem_odp_unmap_dma_pages(struct ib_umem_odp *umem_odp, u64 start_offset,
 #else /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */
 
 static inline struct ib_umem_odp *
-ib_umem_odp_get(struct ib_udata *udata, unsigned long addr, size_t size,
+ib_umem_odp_get(struct ib_device *device, unsigned long addr, size_t size,
 		int access, const struct mmu_interval_notifier_ops *ops)
 {
 	return ERR_PTR(-EINVAL);
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 5608e14e3aad..e2cc62217cc2 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -4153,6 +4153,15 @@ static inline void ib_dma_free_coherent(struct ib_device *dev,
 	dma_free_coherent(dev->dma_device, size, cpu_addr, dma_handle);
 }
 
+/* ib_reg_user_mr - register a memory region for virtual addresses from kernel
+ * space. This function should be called when 'current' is the owning MM.
+ */
+struct ib_mr *ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
+			     u64 virt_addr, int mr_access_flags);
+
+/* ib_advise_mr -  give an advice about an address range in a memory region */
+int ib_advise_mr(struct ib_pd *pd, enum ib_uverbs_advise_mr_advice advice,
+		 u32 flags, struct ib_sge *sg_list, u32 num_sge);
 /**
  * ib_dereg_mr_user - Deregisters a memory region and removes it from the
  *   HCA translation table.
diff --git a/net/rds/ib.c b/net/rds/ib.c
index 3fd5f40189bd..a792d8a3872a 100644
--- a/net/rds/ib.c
+++ b/net/rds/ib.c
@@ -156,6 +156,13 @@ static void rds_ib_add_one(struct ib_device *device)
 	has_fmr = (device->ops.alloc_fmr && device->ops.dealloc_fmr &&
 		   device->ops.map_phys_fmr && device->ops.unmap_fmr);
 	rds_ibdev->use_fastreg = (has_fr && !has_fmr);
+	rds_ibdev->odp_capable =
+		!!(device->attrs.device_cap_flags &
+		   IB_DEVICE_ON_DEMAND_PAGING) &&
+		!!(device->attrs.odp_caps.per_transport_caps.rc_odp_caps &
+		   IB_ODP_SUPPORT_WRITE) &&
+		!!(device->attrs.odp_caps.per_transport_caps.rc_odp_caps &
+		   IB_ODP_SUPPORT_READ);
 
 	rds_ibdev->fmr_max_remaps = device->attrs.max_map_per_fmr?: 32;
 	rds_ibdev->max_1m_mrs = device->attrs.max_mr ?
diff --git a/net/rds/ib.h b/net/rds/ib.h
index 6e6f24753998..0296f1f7acda 100644
--- a/net/rds/ib.h
+++ b/net/rds/ib.h
@@ -247,7 +247,8 @@ struct rds_ib_device {
 	struct ib_device	*dev;
 	struct ib_pd		*pd;
 	struct dma_pool		*rid_hdrs_pool; /* RDS headers DMA pool */
-	bool                    use_fastreg;
+	u8			use_fastreg:1;
+	u8			odp_capable:1;
 
 	unsigned int		max_mrs;
 	struct rds_ib_mr_pool	*mr_1m_pool;
diff --git a/net/rds/ib_mr.h b/net/rds/ib_mr.h
index 9045a8c0edff..0c8252d7fe2b 100644
--- a/net/rds/ib_mr.h
+++ b/net/rds/ib_mr.h
@@ -67,6 +67,7 @@ struct rds_ib_frmr {
 
 /* This is stored as mr->r_trans_private. */
 struct rds_ib_mr {
+	struct delayed_work		work;
 	struct rds_ib_device		*device;
 	struct rds_ib_mr_pool		*pool;
 	struct rds_ib_connection	*ic;
@@ -81,9 +82,11 @@ struct rds_ib_mr {
 	unsigned int			sg_len;
 	int				sg_dma_len;
 
+	u8				odp:1;
 	union {
 		struct rds_ib_fmr	fmr;
 		struct rds_ib_frmr	frmr;
+		struct ib_mr		*mr;
 	} u;
 };
 
@@ -122,12 +125,14 @@ void rds6_ib_get_mr_info(struct rds_ib_device *rds_ibdev,
 void rds_ib_destroy_mr_pool(struct rds_ib_mr_pool *);
 void *rds_ib_get_mr(struct scatterlist *sg, unsigned long nents,
 		    struct rds_sock *rs, u32 *key_ret,
-		    struct rds_connection *conn);
+		    struct rds_connection *conn, u64 start, u64 length,
+		    int need_odp);
 void rds_ib_sync_mr(void *trans_private, int dir);
 void rds_ib_free_mr(void *trans_private, int invalidate);
 void rds_ib_flush_mrs(void);
 int rds_ib_mr_init(void);
 void rds_ib_mr_exit(void);
+u32 rds_ib_get_lkey(void *trans_private);
 
 void __rds_ib_teardown_mr(struct rds_ib_mr *);
 void rds_ib_teardown_mr(struct rds_ib_mr *);
diff --git a/net/rds/ib_rdma.c b/net/rds/ib_rdma.c
index c8c1e3ae8d84..b34b24e237f8 100644
--- a/net/rds/ib_rdma.c
+++ b/net/rds/ib_rdma.c
@@ -37,8 +37,15 @@
 
 #include "rds_single_path.h"
 #include "ib_mr.h"
+#include "rds.h"
 
 struct workqueue_struct *rds_ib_mr_wq;
+struct rds_ib_dereg_odp_mr {
+	struct work_struct work;
+	struct ib_mr *mr;
+};
+
+static void rds_ib_odp_mr_worker(struct work_struct *work);
 
 static struct rds_ib_device *rds_ib_get_device(__be32 ipaddr)
 {
@@ -213,6 +220,9 @@ void rds_ib_sync_mr(void *trans_private, int direction)
 	struct rds_ib_mr *ibmr = trans_private;
 	struct rds_ib_device *rds_ibdev = ibmr->device;
 
+	if (ibmr->odp)
+		return;
+
 	switch (direction) {
 	case DMA_FROM_DEVICE:
 		ib_dma_sync_sg_for_cpu(rds_ibdev->dev, ibmr->sg,
@@ -482,6 +492,16 @@ void rds_ib_free_mr(void *trans_private, int invalidate)
 
 	rdsdebug("RDS/IB: free_mr nents %u\n", ibmr->sg_len);
 
+	if (ibmr->odp) {
+		/* A MR created and marked as use_once. We use delayed work,
+		 * because there is a change that we are in interrupt and can't
+		 * call to ib_dereg_mr() directly.
+		 */
+		INIT_DELAYED_WORK(&ibmr->work, rds_ib_odp_mr_worker);
+		queue_delayed_work(rds_ib_mr_wq, &ibmr->work, 0);
+		return;
+	}
+
 	/* Return it to the pool's free list */
 	if (rds_ibdev->use_fastreg)
 		rds_ib_free_frmr_list(ibmr);
@@ -526,9 +546,17 @@ void rds_ib_flush_mrs(void)
 	up_read(&rds_ib_devices_lock);
 }
 
+u32 rds_ib_get_lkey(void *trans_private)
+{
+	struct rds_ib_mr *ibmr = trans_private;
+
+	return ibmr->u.mr->lkey;
+}
+
 void *rds_ib_get_mr(struct scatterlist *sg, unsigned long nents,
 		    struct rds_sock *rs, u32 *key_ret,
-		    struct rds_connection *conn)
+		    struct rds_connection *conn,
+		    u64 start, u64 length, int need_odp)
 {
 	struct rds_ib_device *rds_ibdev;
 	struct rds_ib_mr *ibmr = NULL;
@@ -541,6 +569,51 @@ void *rds_ib_get_mr(struct scatterlist *sg, unsigned long nents,
 		goto out;
 	}
 
+	if (need_odp == ODP_ZEROBASED || need_odp == ODP_VIRTUAL) {
+		u64 virt_addr = need_odp == ODP_ZEROBASED ? 0 : start;
+		int access_flags =
+			(IB_ACCESS_LOCAL_WRITE | IB_ACCESS_REMOTE_READ |
+			 IB_ACCESS_REMOTE_WRITE | IB_ACCESS_REMOTE_ATOMIC |
+			 IB_ACCESS_ON_DEMAND);
+		struct ib_sge sge = {};
+		struct ib_mr *ib_mr;
+
+		if (!rds_ibdev->odp_capable) {
+			ret = -EOPNOTSUPP;
+			goto out;
+		}
+
+		ib_mr = ib_reg_user_mr(rds_ibdev->pd, start, length, virt_addr,
+				       access_flags);
+
+		if (IS_ERR(ib_mr)) {
+			rdsdebug("rds_ib_get_user_mr returned %d\n",
+				 IS_ERR(ib_mr));
+			ret = PTR_ERR(ib_mr);
+			goto out;
+		}
+		if (key_ret)
+			*key_ret = ib_mr->rkey;
+
+		ibmr = kzalloc(sizeof(*ibmr), GFP_KERNEL);
+		if (!ibmr) {
+			ib_dereg_mr(ib_mr);
+			ret = -ENOMEM;
+			goto out;
+		}
+		ibmr->u.mr = ib_mr;
+		ibmr->odp = 1;
+
+		sge.addr = virt_addr;
+		sge.length = length;
+		sge.lkey = ib_mr->lkey;
+
+		ib_advise_mr(rds_ibdev->pd,
+			     IB_UVERBS_ADVISE_MR_ADVICE_PREFETCH_WRITE,
+			     IB_UVERBS_ADVISE_MR_FLAG_FLUSH, &sge, 1);
+		return ibmr;
+	}
+
 	if (conn)
 		ic = conn->c_transport_data;
 
@@ -629,3 +702,12 @@ void rds_ib_mr_exit(void)
 {
 	destroy_workqueue(rds_ib_mr_wq);
 }
+
+static void rds_ib_odp_mr_worker(struct work_struct  *work)
+{
+	struct rds_ib_mr *ibmr;
+
+	ibmr = container_of(work, struct rds_ib_mr, work.work);
+	ib_dereg_mr(ibmr->u.mr);
+	kfree(ibmr);
+}
diff --git a/net/rds/ib_send.c b/net/rds/ib_send.c
index d1cc1d7778d8..dfe778220657 100644
--- a/net/rds/ib_send.c
+++ b/net/rds/ib_send.c
@@ -39,6 +39,7 @@
 #include "rds_single_path.h"
 #include "rds.h"
 #include "ib.h"
+#include "ib_mr.h"
 
 /*
  * Convert IB-specific error message to RDS error message and call core
@@ -635,6 +636,7 @@ int rds_ib_xmit(struct rds_connection *conn, struct rds_message *rm,
 		send->s_sge[0].addr = ic->i_send_hdrs_dma[pos];
 
 		send->s_sge[0].length = sizeof(struct rds_header);
+		send->s_sge[0].lkey = ic->i_pd->local_dma_lkey;
 
 		memcpy(ic->i_send_hdrs[pos], &rm->m_inc.i_hdr,
 		       sizeof(struct rds_header));
@@ -650,6 +652,7 @@ int rds_ib_xmit(struct rds_connection *conn, struct rds_message *rm,
 			send->s_sge[1].addr = sg_dma_address(scat);
 			send->s_sge[1].addr += rm->data.op_dmaoff;
 			send->s_sge[1].length = len;
+			send->s_sge[1].lkey = ic->i_pd->local_dma_lkey;
 
 			bytes_sent += len;
 			rm->data.op_dmaoff += len;
@@ -858,20 +861,29 @@ int rds_ib_xmit_rdma(struct rds_connection *conn, struct rm_rdma_op *op)
 	int ret;
 	int num_sge;
 	int nr_sig = 0;
+	u64 odp_addr = op->op_odp_addr;
+	u32 odp_lkey = 0;
 
 	/* map the op the first time we see it */
-	if (!op->op_mapped) {
-		op->op_count = ib_dma_map_sg(ic->i_cm_id->device,
-					     op->op_sg, op->op_nents, (op->op_write) ?
-					     DMA_TO_DEVICE : DMA_FROM_DEVICE);
-		rdsdebug("ic %p mapping op %p: %d\n", ic, op, op->op_count);
-		if (op->op_count == 0) {
-			rds_ib_stats_inc(s_ib_tx_sg_mapping_failure);
-			ret = -ENOMEM; /* XXX ? */
-			goto out;
+	if (!op->op_odp_mr) {
+		if (!op->op_mapped) {
+			op->op_count =
+				ib_dma_map_sg(ic->i_cm_id->device, op->op_sg,
+					      op->op_nents,
+					      (op->op_write) ? DMA_TO_DEVICE :
+							       DMA_FROM_DEVICE);
+			rdsdebug("ic %p mapping op %p: %d\n", ic, op,
+				 op->op_count);
+			if (op->op_count == 0) {
+				rds_ib_stats_inc(s_ib_tx_sg_mapping_failure);
+				ret = -ENOMEM; /* XXX ? */
+				goto out;
+			}
+			op->op_mapped = 1;
 		}
-
-		op->op_mapped = 1;
+	} else {
+		op->op_count = op->op_nents;
+		odp_lkey = rds_ib_get_lkey(op->op_odp_mr->r_trans_private);
 	}
 
 	/*
@@ -923,14 +935,20 @@ int rds_ib_xmit_rdma(struct rds_connection *conn, struct rm_rdma_op *op)
 		for (j = 0; j < send->s_rdma_wr.wr.num_sge &&
 		     scat != &op->op_sg[op->op_count]; j++) {
 			len = sg_dma_len(scat);
-			send->s_sge[j].addr = sg_dma_address(scat);
+			if (!op->op_odp_mr) {
+				send->s_sge[j].addr = sg_dma_address(scat);
+				send->s_sge[j].lkey = ic->i_pd->local_dma_lkey;
+			} else {
+				send->s_sge[j].addr = odp_addr;
+				send->s_sge[j].lkey = odp_lkey;
+			}
 			send->s_sge[j].length = len;
-			send->s_sge[j].lkey = ic->i_pd->local_dma_lkey;
 
 			sent += len;
 			rdsdebug("ic %p sent %d remote_addr %llu\n", ic, sent, remote_addr);
 
 			remote_addr += len;
+			odp_addr += len;
 			scat++;
 		}
 
diff --git a/net/rds/rdma.c b/net/rds/rdma.c
index 916f5ec373d8..3341eee87bf9 100644
--- a/net/rds/rdma.c
+++ b/net/rds/rdma.c
@@ -156,11 +156,13 @@ void rds_rdma_drop_keys(struct rds_sock *rs)
 static int rds_pin_pages(unsigned long user_addr, unsigned int nr_pages,
 			struct page **pages, int write)
 {
+	unsigned int gup_flags = FOLL_LONGTERM;
 	int ret;
 
-	ret = get_user_pages_fast(user_addr, nr_pages, write ? FOLL_WRITE : 0,
-				  pages);
+	if (write)
+		gup_flags |= FOLL_WRITE;
 
+	ret = get_user_pages_fast(user_addr, nr_pages, gup_flags, pages);
 	if (ret >= 0 && ret < nr_pages) {
 		while (ret--)
 			put_page(pages[ret]);
@@ -175,13 +177,14 @@ static int __rds_rdma_map(struct rds_sock *rs, struct rds_get_mr_args *args,
 			  struct rds_conn_path *cp)
 {
 	struct rds_mr *mr = NULL, *found;
+	struct scatterlist *sg = NULL;
 	unsigned int nr_pages;
 	struct page **pages = NULL;
-	struct scatterlist *sg;
 	void *trans_private;
 	unsigned long flags;
 	rds_rdma_cookie_t cookie;
-	unsigned int nents;
+	unsigned int nents = 0;
+	int need_odp = 0;
 	long i;
 	int ret;
 
@@ -195,6 +198,21 @@ static int __rds_rdma_map(struct rds_sock *rs, struct rds_get_mr_args *args,
 		goto out;
 	}
 
+	/* If the combination of the addr and size requested for this memory
+	 * region causes an integer overflow, return error.
+	 */
+	if (((args->vec.addr + args->vec.bytes) < args->vec.addr) ||
+	    PAGE_ALIGN(args->vec.addr + args->vec.bytes) <
+		    (args->vec.addr + args->vec.bytes)) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	if (!can_do_mlock()) {
+		ret = -EPERM;
+		goto out;
+	}
+
 	nr_pages = rds_pages_in_vec(&args->vec);
 	if (nr_pages == 0) {
 		ret = -EINVAL;
@@ -248,36 +266,44 @@ static int __rds_rdma_map(struct rds_sock *rs, struct rds_get_mr_args *args,
 	 * the zero page.
 	 */
 	ret = rds_pin_pages(args->vec.addr, nr_pages, pages, 1);
-	if (ret < 0)
+	if (ret == -EOPNOTSUPP) {
+		need_odp = 1;
+	} else if (ret <= 0) {
 		goto out;
+	} else {
+		nents = ret;
+		sg = kcalloc(nents, sizeof(*sg), GFP_KERNEL);
+		if (!sg) {
+			ret = -ENOMEM;
+			goto out;
+		}
+		WARN_ON(!nents);
+		sg_init_table(sg, nents);
 
-	nents = ret;
-	sg = kcalloc(nents, sizeof(*sg), GFP_KERNEL);
-	if (!sg) {
-		ret = -ENOMEM;
-		goto out;
+		/* Stick all pages into the scatterlist */
+		for (i = 0 ; i < nents; i++)
+			sg_set_page(&sg[i], pages[i], PAGE_SIZE, 0);
+
+		rdsdebug("RDS: trans_private nents is %u\n", nents);
 	}
-	WARN_ON(!nents);
-	sg_init_table(sg, nents);
-
-	/* Stick all pages into the scatterlist */
-	for (i = 0 ; i < nents; i++)
-		sg_set_page(&sg[i], pages[i], PAGE_SIZE, 0);
-
-	rdsdebug("RDS: trans_private nents is %u\n", nents);
-
 	/* Obtain a transport specific MR. If this succeeds, the
 	 * s/g list is now owned by the MR.
 	 * Note that dma_map() implies that pending writes are
 	 * flushed to RAM, so no dma_sync is needed here. */
-	trans_private = rs->rs_transport->get_mr(sg, nents, rs,
-						 &mr->r_key,
-						 cp ? cp->cp_conn : NULL);
+	trans_private = rs->rs_transport->get_mr(
+		sg, nents, rs, &mr->r_key, cp ? cp->cp_conn : NULL,
+		args->vec.addr, args->vec.bytes,
+		need_odp ? ODP_ZEROBASED : ODP_NOT_NEEDED);
 
 	if (IS_ERR(trans_private)) {
-		for (i = 0 ; i < nents; i++)
-			put_page(sg_page(&sg[i]));
-		kfree(sg);
+		/* In ODP case, we don't GUP pages, so don't need
+		 * to release anything.
+		 */
+		if (!need_odp) {
+			for (i = 0 ; i < nents; i++)
+				put_page(sg_page(&sg[i]));
+			kfree(sg);
+		}
 		ret = PTR_ERR(trans_private);
 		goto out;
 	}
@@ -291,7 +317,11 @@ static int __rds_rdma_map(struct rds_sock *rs, struct rds_get_mr_args *args,
 	 * map page aligned regions. So we keep the offset, and build
 	 * a 64bit cookie containing <R_Key, offset> and pass that
 	 * around. */
-	cookie = rds_rdma_make_cookie(mr->r_key, args->vec.addr & ~PAGE_MASK);
+	if (need_odp)
+		cookie = rds_rdma_make_cookie(mr->r_key, 0);
+	else
+		cookie = rds_rdma_make_cookie(mr->r_key,
+					      args->vec.addr & ~PAGE_MASK);
 	if (cookie_ret)
 		*cookie_ret = cookie;
 
@@ -456,22 +486,26 @@ void rds_rdma_free_op(struct rm_rdma_op *ro)
 {
 	unsigned int i;
 
-	for (i = 0; i < ro->op_nents; i++) {
-		struct page *page = sg_page(&ro->op_sg[i]);
+	if (ro->op_odp_mr) {
+		rds_mr_put(ro->op_odp_mr);
+	} else {
+		for (i = 0; i < ro->op_nents; i++) {
+			struct page *page = sg_page(&ro->op_sg[i]);
 
-		/* Mark page dirty if it was possibly modified, which
-		 * is the case for a RDMA_READ which copies from remote
-		 * to local memory */
-		if (!ro->op_write) {
-			WARN_ON(!page->mapping && irqs_disabled());
-			set_page_dirty(page);
+			/* Mark page dirty if it was possibly modified, which
+			 * is the case for a RDMA_READ which copies from remote
+			 * to local memory
+			 */
+			if (!ro->op_write)
+				set_page_dirty(page);
+			put_page(page);
 		}
-		put_page(page);
 	}
 
 	kfree(ro->op_notifier);
 	ro->op_notifier = NULL;
 	ro->op_active = 0;
+	ro->op_odp_mr = NULL;
 }
 
 void rds_atomic_free_op(struct rm_atomic_op *ao)
@@ -581,6 +615,7 @@ int rds_cmsg_rdma_args(struct rds_sock *rs, struct rds_message *rm,
 	struct rds_iovec *iovs;
 	unsigned int i, j;
 	int ret = 0;
+	bool odp_supported = true;
 
 	if (cmsg->cmsg_len < CMSG_LEN(sizeof(struct rds_rdma_args))
 	    || rm->rdma.op_active)
@@ -602,6 +637,9 @@ int rds_cmsg_rdma_args(struct rds_sock *rs, struct rds_message *rm,
 		ret = -EINVAL;
 		goto out_ret;
 	}
+	/* odp-mr is not supported for multiple requests within one message */
+	if (args->nr_local != 1)
+		odp_supported = false;
 
 	iovs = vec->iov;
 
@@ -623,6 +661,8 @@ int rds_cmsg_rdma_args(struct rds_sock *rs, struct rds_message *rm,
 	op->op_silent = !!(args->flags & RDS_RDMA_SILENT);
 	op->op_active = 1;
 	op->op_recverr = rs->rs_recverr;
+	op->op_odp_mr = NULL;
+
 	WARN_ON(!nr_pages);
 	op->op_sg = rds_message_alloc_sgs(rm, nr_pages, &ret);
 	if (!op->op_sg)
@@ -672,10 +712,44 @@ int rds_cmsg_rdma_args(struct rds_sock *rs, struct rds_message *rm,
 		 * If it's a READ operation, we need to pin the pages for writing.
 		 */
 		ret = rds_pin_pages(iov->addr, nr, pages, !op->op_write);
-		if (ret < 0)
+		if ((!odp_supported && ret <= 0) ||
+		    (odp_supported && ret <= 0 && ret != -EOPNOTSUPP))
 			goto out_pages;
-		else
-			ret = 0;
+
+		if (ret == -EOPNOTSUPP) {
+			struct rds_mr *local_odp_mr;
+
+			if (!rs->rs_transport->get_mr) {
+				ret = -EOPNOTSUPP;
+				goto out_pages;
+			}
+			local_odp_mr =
+				kzalloc(sizeof(*local_odp_mr), GFP_KERNEL);
+			if (!local_odp_mr) {
+				ret = -ENOMEM;
+				goto out_pages;
+			}
+			RB_CLEAR_NODE(&local_odp_mr->r_rb_node);
+			refcount_set(&local_odp_mr->r_refcount, 1);
+			local_odp_mr->r_trans = rs->rs_transport;
+			local_odp_mr->r_sock = rs;
+			local_odp_mr->r_trans_private =
+				rs->rs_transport->get_mr(
+					NULL, 0, rs, &local_odp_mr->r_key, NULL,
+					iov->addr, iov->bytes, ODP_VIRTUAL);
+			if (IS_ERR(local_odp_mr->r_trans_private)) {
+				ret = IS_ERR(local_odp_mr->r_trans_private);
+				rdsdebug("get_mr ret %d %p\"", ret,
+					 local_odp_mr->r_trans_private);
+				kfree(local_odp_mr);
+				ret = -EOPNOTSUPP;
+				goto out_pages;
+			}
+			rdsdebug("Need odp; local_odp_mr %p trans_private %p\n",
+				 local_odp_mr, local_odp_mr->r_trans_private);
+			op->op_odp_mr = local_odp_mr;
+			op->op_odp_addr = iov->addr;
+		}
 
 		rdsdebug("RDS: nr_bytes %u nr %u iov->bytes %llu iov->addr %llx\n",
 			 nr_bytes, nr, iov->bytes, iov->addr);
@@ -691,6 +765,7 @@ int rds_cmsg_rdma_args(struct rds_sock *rs, struct rds_message *rm,
 					min_t(unsigned int, iov->bytes, PAGE_SIZE - offset),
 					offset);
 
+			sg_dma_len(sg) = sg->length;
 			rdsdebug("RDS: sg->offset %x sg->len %x iov->addr %llx iov->bytes %llu\n",
 			       sg->offset, sg->length, iov->addr, iov->bytes);
 
@@ -709,6 +784,7 @@ int rds_cmsg_rdma_args(struct rds_sock *rs, struct rds_message *rm,
 		goto out_pages;
 	}
 	op->op_bytes = nr_bytes;
+	ret = 0;
 
 out_pages:
 	kfree(pages);
@@ -755,7 +831,8 @@ int rds_cmsg_rdma_dest(struct rds_sock *rs, struct rds_message *rm,
 	spin_unlock_irqrestore(&rs->rs_rdma_lock, flags);
 
 	if (mr) {
-		mr->r_trans->sync_mr(mr->r_trans_private, DMA_TO_DEVICE);
+		mr->r_trans->sync_mr(mr->r_trans_private,
+				     DMA_TO_DEVICE);
 		rm->rdma.op_rdma_mr = mr;
 	}
 	return err;
diff --git a/net/rds/rds.h b/net/rds/rds.h
index 53e86911773a..e4a603523083 100644
--- a/net/rds/rds.h
+++ b/net/rds/rds.h
@@ -40,7 +40,6 @@
 #ifdef ATOMIC64_INIT
 #define KERNEL_HAS_ATOMIC64
 #endif
-
 #ifdef RDS_DEBUG
 #define rdsdebug(fmt, args...) pr_debug("%s(): " fmt, __func__ , ##args)
 #else
@@ -478,6 +477,9 @@ struct rds_message {
 			struct rds_notifier	*op_notifier;
 
 			struct rds_mr		*op_rdma_mr;
+
+			u64			op_odp_addr;
+			struct rds_mr		*op_odp_mr;
 		} rdma;
 		struct rm_data_op {
 			unsigned int		op_active:1;
@@ -573,7 +575,8 @@ struct rds_transport {
 	void (*exit)(void);
 	void *(*get_mr)(struct scatterlist *sg, unsigned long nr_sg,
 			struct rds_sock *rs, u32 *key_ret,
-			struct rds_connection *conn);
+			struct rds_connection *conn,
+			u64 start, u64 length, int need_odp);
 	void (*sync_mr)(void *trans_private, int direction);
 	void (*free_mr)(void *trans_private, int invalidate);
 	void (*flush_mrs)(void);
@@ -956,6 +959,12 @@ static inline bool rds_destroy_pending(struct rds_connection *conn)
 	       (conn->c_trans->t_unloading && conn->c_trans->t_unloading(conn));
 }
 
+enum {
+	ODP_NOT_NEEDED,
+	ODP_ZEROBASED,
+	ODP_VIRTUAL
+};
+
 /* stats.c */
 DECLARE_PER_CPU_SHARED_ALIGNED(struct rds_statistics, rds_stats);
 #define rds_stats_inc_which(which, member) do {		\