diff --git a/examples/accel/perf/accel_perf.c b/examples/accel/perf/accel_perf.c
index 17a406af9..924a5b129 100644
--- a/examples/accel/perf/accel_perf.c
+++ b/examples/accel/perf/accel_perf.c
@@ -290,6 +290,12 @@ _accel_done(void *arg1)
 				worker->xfer_failed++;
 			}
 			break;
+		case ACCEL_FILL:
+			if (memcmp(task->dst, task->src, g_xfer_size_bytes)) {
+				SPDK_NOTICELOG("Data miscompare\n");
+				worker->xfer_failed++;
+			}
+			break;
 		default:
 			assert(false);
 			break;
@@ -438,6 +444,11 @@ _get_task_data_bufs(struct ap_task *task)
 		memset(task->dst, ~DATA_PATTERN, g_xfer_size_bytes);
 	}
 
+	/* For fill, set the entire src buffer so we can check if verify is enabled. */
+	if (g_workload_selection == ACCEL_FILL) {
+		memset(task->src, g_fill_pattern, g_xfer_size_bytes);
+	}
+
 	if (g_workload_selection == ACCEL_DUALCAST) {
 		task->dst2 = spdk_dma_zmalloc(g_xfer_size_bytes, align, NULL);
 		if (task->dst2 == NULL) {
@@ -471,6 +482,11 @@ _batch_prep_cmd(struct worker_thread *worker, struct ap_task *task, struct spdk_
 						   worker->ch, batch, task->dst, task->src,
 						   g_xfer_size_bytes, accel_done);
 		break;
+	case ACCEL_FILL:
+		rc = spdk_accel_batch_prep_fill(__accel_task_from_ap_task(task),
+						worker->ch, batch, task->dst, *(uint8_t *)task->src,
+						g_xfer_size_bytes, accel_done);
+		break;
 	default:
 		assert(false);
 		break;
@@ -524,7 +540,8 @@ _init_thread(void *arg1)
 	/* TODO: remove the workload selection checks once all are added. */
 	if ((g_workload_selection == ACCEL_COPY ||
 	     g_workload_selection == ACCEL_DUALCAST ||
-	     g_workload_selection == ACCEL_COMPARE)
+	     g_workload_selection == ACCEL_COMPARE ||
+	     g_workload_selection == ACCEL_FILL)
 	    && ((g_capabilites & ACCEL_BATCH) == ACCEL_BATCH) &&
 	    g_queue_depth > 1) {
 
diff --git a/include/spdk/accel_engine.h b/include/spdk/accel_engine.h
index 30653ea80..428c771ca 100644
--- a/include/spdk/accel_engine.h
+++ b/include/spdk/accel_engine.h
@@ -262,6 +262,26 @@ int spdk_accel_submit_compare(struct spdk_accel_task *accel_req, struct spdk_io_
 			      void *src1, void *src2, uint64_t nbytes,
 			      spdk_accel_completion_cb cb);
 
+/**
+ * Synchronous call to prepare a fill request into a previously initialized batch
+ *  created with spdk_accel_batch_create(). The callback will be called when the fill
+ *  completes after the batch has been submitted by an asynchronous call to
+ *  spdk_accel_batch_submit().
+ *
+ * \param accel_req Accel request task.
+ * \param ch I/O channel to submit request to the accel engine.
+ * \param batch Handle provided when the batch was started with spdk_accel_batch_create().
+ * \param dst Destination to fill.
+ * \param fill Constant byte to fill to the destination.
+ * \param nbytes Length in bytes to fill.
+ * \param cb Called when this operation completes.
+ *
+ * \return 0 on success, negative errno on failure.
+ */
+int spdk_accel_batch_prep_fill(struct spdk_accel_task *accel_req, struct spdk_io_channel *ch,
+			       struct spdk_accel_batch *batch, void *dst, uint8_t fill,
+			       uint64_t nbytes, spdk_accel_completion_cb cb);
+
 /**
  * Submit a fill request.
  *
diff --git a/include/spdk_internal/accel_engine.h b/include/spdk_internal/accel_engine.h
index 6dc0349fc..e8c2d880a 100644
--- a/include/spdk_internal/accel_engine.h
+++ b/include/spdk_internal/accel_engine.h
@@ -58,6 +58,8 @@ struct spdk_accel_engine {
 				   void *dst1, void *dst2, void *src, uint64_t nbytes, spdk_accel_completion_cb cb);
 	int (*batch_prep_compare)(void *cb_arg, struct spdk_io_channel *ch, struct spdk_accel_batch *batch,
 				  void *src1, void *src2, uint64_t nbytes, spdk_accel_completion_cb cb);
+	int (*batch_prep_fill)(void *cb_arg, struct spdk_io_channel *ch, struct spdk_accel_batch *batch,
+			       void *dst, uint8_t fill, uint64_t nbytes, spdk_accel_completion_cb cb);
 	int (*batch_submit)(void *cb_arg, struct spdk_io_channel *ch, struct spdk_accel_batch *batch,
 			    spdk_accel_completion_cb cb);
 	int (*compare)(void *cb_arg, struct spdk_io_channel *ch, void *src1, void *src2,
diff --git a/lib/accel/accel_engine.c b/lib/accel/accel_engine.c
index 1d538965b..7d36585d7 100644
--- a/lib/accel/accel_engine.c
+++ b/lib/accel/accel_engine.c
@@ -255,6 +255,21 @@ spdk_accel_batch_prep_compare(struct spdk_accel_task *accel_req, struct spdk_io_
 			batch, src1, src2, nbytes, _accel_engine_done);
 }
 
+/* Accel framework public API for batch prep_fill function.  All engines are
+ * required to implement this API.
+ */
+int
+spdk_accel_batch_prep_fill(struct spdk_accel_task *accel_req, struct spdk_io_channel *ch,
+			   struct spdk_accel_batch *batch, void *dst, uint8_t fill, uint64_t nbytes,
+			   spdk_accel_completion_cb cb)
+{
+	struct accel_io_channel *accel_ch = spdk_io_channel_get_ctx(ch);
+
+	accel_req->cb = cb;
+	return accel_ch->engine->batch_prep_fill(accel_req->offload_ctx, accel_ch->ch,
+			batch, dst, fill, nbytes, _accel_engine_done);
+}
+
 /* Accel framework public API for compare function */
 int
 spdk_accel_submit_compare(struct spdk_accel_task *accel_req, struct spdk_io_channel *ch,
@@ -626,6 +641,29 @@ sw_accel_batch_prep_compare(void *cb_arg, struct spdk_io_channel *ch,
 	return 0;
 }
 
+static int
+sw_accel_batch_prep_fill(void *cb_arg, struct spdk_io_channel *ch,
+			 struct spdk_accel_batch *batch, void *dst, uint8_t fill,
+			 uint64_t nbytes, spdk_accel_completion_cb cb)
+{
+	struct sw_accel_op *op;
+	struct sw_accel_io_channel *sw_ch = spdk_io_channel_get_ctx(ch);
+
+	op = _prep_op(cb_arg, sw_ch, batch, cb);
+	if (op == NULL) {
+		return -EINVAL;
+	}
+
+	/* Command specific. */
+	op->dst = dst;
+	op->fill_pattern = fill;
+	op->nbytes = nbytes;
+	op->op_code = SW_ACCEL_OPCODE_MEMFILL;
+	TAILQ_INSERT_TAIL(&sw_ch->batch, op, link);
+
+	return 0;
+}
+
 static int
 sw_accel_batch_submit(void *cb_arg, struct spdk_io_channel *ch, struct spdk_accel_batch *batch,
 		      spdk_accel_completion_cb cb)
@@ -657,6 +695,9 @@ sw_accel_batch_submit(void *cb_arg, struct spdk_io_channel *ch, struct spdk_acce
 		case SW_ACCEL_OPCODE_COMPARE:
 			cmd_status = memcmp(op->src, op->src2, op->nbytes);
 			break;
+		case SW_ACCEL_OPCODE_MEMFILL:
+			memset(op->dst, op->fill_pattern, op->nbytes);
+			break;
 		default:
 			assert(false);
 			break;
@@ -759,6 +800,7 @@ static struct spdk_accel_engine sw_accel_engine = {
 	.batch_prep_copy	= sw_accel_batch_prep_copy,
 	.batch_prep_dualcast	= sw_accel_batch_prep_dualcast,
 	.batch_prep_compare	= sw_accel_batch_prep_compare,
+	.batch_prep_fill	= sw_accel_batch_prep_fill,
 	.batch_submit		= sw_accel_batch_submit,
 	.compare		= sw_accel_submit_compare,
 	.fill			= sw_accel_submit_fill,
diff --git a/lib/accel/spdk_accel.map b/lib/accel/spdk_accel.map
index c6dbc37d4..e7f2f0546 100644
--- a/lib/accel/spdk_accel.map
+++ b/lib/accel/spdk_accel.map
@@ -13,6 +13,7 @@
 	spdk_accel_batch_prep_copy;
 	spdk_accel_batch_prep_dualcast;
 	spdk_accel_batch_prep_compare;
+	spdk_accel_batch_prep_fill;
 	spdk_accel_batch_submit;
 	spdk_accel_submit_copy;
 	spdk_accel_submit_dualcast;