diff --git a/block/blk-mq-dma.c b/block/blk-mq-dma.c
index 31dd8f58f081..60a244a129c3 100644
--- a/block/blk-mq-dma.c
+++ b/block/blk-mq-dma.c
@@ -2,6 +2,7 @@
 /*
  * Copyright (C) 2025 Christoph Hellwig
  */
+#include <linux/blk-integrity.h>
 #include <linux/blk-mq-dma.h>
 #include "blk.h"
 
@@ -10,6 +11,24 @@ struct phys_vec {
 	u32		len;
 };
 
+static bool __blk_map_iter_next(struct blk_map_iter *iter)
+{
+	if (iter->iter.bi_size)
+		return true;
+	if (!iter->bio || !iter->bio->bi_next)
+		return false;
+
+	iter->bio = iter->bio->bi_next;
+	if (iter->is_integrity) {
+		iter->iter = bio_integrity(iter->bio)->bip_iter;
+		iter->bvecs = bio_integrity(iter->bio)->bip_vec;
+	} else {
+		iter->iter = iter->bio->bi_iter;
+		iter->bvecs = iter->bio->bi_io_vec;
+	}
+	return true;
+}
+
 static bool blk_map_iter_next(struct request *req, struct blk_map_iter *iter,
 			      struct phys_vec *vec)
 {
@@ -33,13 +52,8 @@ static bool blk_map_iter_next(struct request *req, struct blk_map_iter *iter,
 	while (!iter->iter.bi_size || !iter->iter.bi_bvec_done) {
 		struct bio_vec next;
 
-		if (!iter->iter.bi_size) {
-			if (!iter->bio || !iter->bio->bi_next)
-				break;
-			iter->bio = iter->bio->bi_next;
-			iter->iter = iter->bio->bi_iter;
-			iter->bvecs = iter->bio->bi_io_vec;
-		}
+		if (!__blk_map_iter_next(iter))
+			break;
 
 		next = mp_bvec_iter_bvec(iter->bvecs, iter->iter);
 		if (bv.bv_len + next.bv_len > max_size ||
@@ -290,3 +304,79 @@ int __blk_rq_map_sg(struct request *rq, struct scatterlist *sglist,
 	return nsegs;
 }
 EXPORT_SYMBOL(__blk_rq_map_sg);
+
+#ifdef CONFIG_BLK_DEV_INTEGRITY
+/**
+ * blk_rq_integrity_dma_map_iter_start - map the first integrity DMA segment
+ * 					 for a request
+ * @req:	request to map
+ * @dma_dev:	device to map to
+ * @state:	DMA IOVA state
+ * @iter:	block layer DMA iterator
+ *
+ * Start DMA mapping @req integrity data to @dma_dev.  @state and @iter are
+ * provided by the caller and don't need to be initialized.  @state needs to be
+ * stored for use at unmap time, @iter is only needed at map time.
+ *
+ * Returns %false if there is no segment to map, including due to an error, or
+ * %true if it did map a segment.
+ *
+ * If a segment was mapped, the DMA address for it is returned in @iter.addr
+ * and the length in @iter.len.  If no segment was mapped the status code is
+ * returned in @iter.status.
+ *
+ * The caller can call blk_rq_dma_map_coalesce() to check if further segments
+ * need to be mapped after this, or go straight to blk_rq_dma_map_iter_next()
+ * to try to map the following segments.
+ */
+bool blk_rq_integrity_dma_map_iter_start(struct request *req,
+		struct device *dma_dev,  struct dma_iova_state *state,
+		struct blk_dma_iter *iter)
+{
+	unsigned len = bio_integrity_bytes(&req->q->limits.integrity,
+					   blk_rq_sectors(req));
+	struct bio *bio = req->bio;
+
+	iter->iter = (struct blk_map_iter) {
+		.bio = bio,
+		.iter = bio_integrity(bio)->bip_iter,
+		.bvecs = bio_integrity(bio)->bip_vec,
+		.is_integrity = true,
+	};
+	return blk_dma_map_iter_start(req, dma_dev, state, iter, len);
+}
+EXPORT_SYMBOL_GPL(blk_rq_integrity_dma_map_iter_start);
+
+/**
+ * blk_rq_integrity_dma_map_iter_start - map the next integrity DMA segment for
+ * 					 a request
+ * @req:	request to map
+ * @dma_dev:	device to map to
+ * @state:	DMA IOVA state
+ * @iter:	block layer DMA iterator
+ *
+ * Iterate to the next integrity mapping after a previous call to
+ * blk_rq_integrity_dma_map_iter_start().  See there for a detailed description
+ * of the arguments.
+ *
+ * Returns %false if there is no segment to map, including due to an error, or
+ * %true if it did map a segment.
+ *
+ * If a segment was mapped, the DMA address for it is returned in @iter.addr and
+ * the length in @iter.len.  If no segment was mapped the status code is
+ * returned in @iter.status.
+ */
+bool blk_rq_integrity_dma_map_iter_next(struct request *req,
+               struct device *dma_dev, struct blk_dma_iter *iter)
+{
+	struct phys_vec vec;
+
+	if (!blk_map_iter_next(req, &iter->iter, &vec))
+		return false;
+
+	if (iter->p2pdma.map == PCI_P2PDMA_MAP_BUS_ADDR)
+		return blk_dma_map_bus(iter, &vec);
+	return blk_dma_map_direct(req, dma_dev, iter, &vec);
+}
+EXPORT_SYMBOL_GPL(blk_rq_integrity_dma_map_iter_next);
+#endif
diff --git a/include/linux/blk-integrity.h b/include/linux/blk-integrity.h
index e67a2b6e8f11..78fe2459e661 100644
--- a/include/linux/blk-integrity.h
+++ b/include/linux/blk-integrity.h
@@ -4,6 +4,7 @@
 
 #include <linux/blk-mq.h>
 #include <linux/bio-integrity.h>
+#include <linux/blk-mq-dma.h>
 
 struct request;
 
@@ -31,6 +32,11 @@ int blk_rq_integrity_map_user(struct request *rq, void __user *ubuf,
 			      ssize_t bytes);
 int blk_get_meta_cap(struct block_device *bdev, unsigned int cmd,
 		     struct logical_block_metadata_cap __user *argp);
+bool blk_rq_integrity_dma_map_iter_start(struct request *req,
+		struct device *dma_dev,  struct dma_iova_state *state,
+		struct blk_dma_iter *iter);
+bool blk_rq_integrity_dma_map_iter_next(struct request *req,
+		struct device *dma_dev, struct blk_dma_iter *iter);
 
 static inline bool
 blk_integrity_queue_supports_integrity(struct request_queue *q)
@@ -115,6 +121,17 @@ static inline int blk_rq_integrity_map_user(struct request *rq,
 {
 	return -EINVAL;
 }
+static inline bool blk_rq_integrity_dma_map_iter_start(struct request *req,
+		struct device *dma_dev,  struct dma_iova_state *state,
+		struct blk_dma_iter *iter)
+{
+	return false;
+}
+static inline bool blk_rq_integrity_dma_map_iter_next(struct request *req,
+		struct device *dma_dev, struct blk_dma_iter *iter)
+{
+	return false;
+}
 static inline struct blk_integrity *bdev_get_integrity(struct block_device *b)
 {
 	return NULL;
diff --git a/include/linux/blk-mq-dma.h b/include/linux/blk-mq-dma.h
index 881880095e0d..0f45ea110ca1 100644
--- a/include/linux/blk-mq-dma.h
+++ b/include/linux/blk-mq-dma.h
@@ -9,6 +9,7 @@ struct blk_map_iter {
 	struct bvec_iter		iter;
 	struct bio			*bio;
 	struct bio_vec			*bvecs;
+	bool				is_integrity;
 };
 
 struct blk_dma_iter {