diff --git a/include/spdk_internal/accel_engine.h b/include/spdk_internal/accel_engine.h
index ae4c38a6c..f430779c1 100644
--- a/include/spdk_internal/accel_engine.h
+++ b/include/spdk_internal/accel_engine.h
@@ -74,19 +74,29 @@ struct spdk_accel_module_if {
 	 */
 	void	(*config_text)(FILE *fp);
 
+	/**
+	 * Write Acceleration module configuration into provided JSON context.
+	 */
+	void	(*write_config_json)(struct spdk_json_write_ctx *w);
+
+	/**
+	 * Returns the allocation size required for the modules to use for context.
+	 */
 	size_t	(*get_ctx_size)(void);
+
 	TAILQ_ENTRY(spdk_accel_module_if)	tailq;
 };
 
 void spdk_accel_hw_engine_register(struct spdk_accel_engine *accel_engine);
 void spdk_accel_module_list_add(struct spdk_accel_module_if *accel_module);
 
-#define SPDK_ACCEL_MODULE_REGISTER(init_fn, fini_fn, config_fn, ctx_size_fn)				\
+#define SPDK_ACCEL_MODULE_REGISTER(init_fn, fini_fn, config_fn, config_json, ctx_size_fn)				\
 	static struct spdk_accel_module_if init_fn ## _if = {						\
-	.module_init	= init_fn,									\
-	.module_fini	= fini_fn,									\
-	.config_text	= config_fn,									\
-	.get_ctx_size	= ctx_size_fn,									\
+	.module_init		= init_fn,								\
+	.module_fini		= fini_fn,								\
+	.config_text		= config_fn,								\
+	.write_config_json	= config_json,								\
+	.get_ctx_size		= ctx_size_fn,								\
 	};												\
 	__attribute__((constructor)) static void init_fn ## _init(void)					\
 	{												\
diff --git a/lib/accel/accel_engine.c b/lib/accel/accel_engine.c
index 7257afe3b..a4cbc6ced 100644
--- a/lib/accel/accel_engine.c
+++ b/lib/accel/accel_engine.c
@@ -223,11 +223,17 @@ spdk_accel_engine_module_finish_cb(void)
 void
 spdk_accel_write_config_json(struct spdk_json_write_ctx *w)
 {
-	/* TODO: call engine config_json entry points. */
-	spdk_json_write_array_begin(w);
-	spdk_json_write_object_begin(w);
-	spdk_json_write_object_end(w);
-	spdk_json_write_array_end(w);
+	struct spdk_accel_module_if *accel_engine_module;
+
+	/*
+	 * The accel engine has no config, there may be some in
+	 * the modules though.
+	 */
+	TAILQ_FOREACH(accel_engine_module, &spdk_accel_module_list, tailq) {
+		if (accel_engine_module->write_config_json) {
+			accel_engine_module->write_config_json(w);
+		}
+	}
 }
 
 void
@@ -364,4 +370,4 @@ sw_accel_engine_fini(void *ctxt)
 }
 
 SPDK_ACCEL_MODULE_REGISTER(sw_accel_engine_init, sw_accel_engine_fini,
-			   NULL, sw_accel_engine_get_ctx_size)
+			   NULL, NULL, sw_accel_engine_get_ctx_size)
diff --git a/mk/spdk.lib_deps.mk b/mk/spdk.lib_deps.mk
index 2c24578be..69dc65d89 100644
--- a/mk/spdk.lib_deps.mk
+++ b/mk/spdk.lib_deps.mk
@@ -57,7 +57,7 @@ DEPDIRS-reduce := log util
 DEPDIRS-thread := log util
 
 DEPDIRS-blob := log util thread
-DEPDIRS-accel := log json thread
+DEPDIRS-accel := log thread
 DEPDIRS-jsonrpc := log util json
 DEPDIRS-virtio := log util json thread
 
diff --git a/module/accel/idxd/accel_engine_idxd.c b/module/accel/idxd/accel_engine_idxd.c
index 4ccadf710..d03840793 100644
--- a/module/accel/idxd/accel_engine_idxd.c
+++ b/module/accel/idxd/accel_engine_idxd.c
@@ -45,6 +45,7 @@
 #include "spdk/thread.h"
 #include "spdk/idxd.h"
 #include "spdk/util.h"
+#include "spdk/json.h"
 
 /* Undefine this to require an RPC to enable IDXD. */
 #undef DEVELOPER_DEBUG_MODE
@@ -55,6 +56,8 @@ static bool g_idxd_enable = true;
 static bool g_idxd_enable = false;
 #endif
 
+uint32_t g_config_number;
+
 enum channel_state {
 	IDXD_CHANNEL_ACTIVE,
 	IDXD_CHANNEL_PAUSED,
@@ -470,8 +473,9 @@ accel_engine_idxd_enable_probe(uint32_t config_number)
 		config_number = 0;
 	}
 
+	g_config_number = config_number;
 	g_idxd_enable = true;
-	spdk_idxd_set_config(config_number);
+	spdk_idxd_set_config(g_config_number);
 }
 
 static int
@@ -521,8 +525,25 @@ accel_engine_idxd_exit(void *ctx)
 	spdk_accel_engine_module_finish();
 }
 
+static void
+accel_engine_idxd_write_config_json(struct spdk_json_write_ctx *w)
+{
+	spdk_json_write_array_begin(w);
+
+	if (g_idxd_enable) {
+		spdk_json_write_object_begin(w);
+		spdk_json_write_named_string(w, "method", "idxd_scan_accel_engine");
+		spdk_json_write_named_object_begin(w, "params");
+		spdk_json_write_named_uint32(w, "config_number", g_config_number);
+		spdk_json_write_object_end(w);
+		spdk_json_write_object_end(w);
+	}
+
+	spdk_json_write_array_end(w);
+}
+
 SPDK_ACCEL_MODULE_REGISTER(accel_engine_idxd_init, accel_engine_idxd_exit,
-			   NULL,
+			   NULL, accel_engine_idxd_write_config_json,
 			   accel_engine_idxd_get_ctx_size)
 
 SPDK_LOG_REGISTER_COMPONENT("accel_idxd", SPDK_LOG_ACCEL_IDXD)
diff --git a/module/accel/ioat/accel_engine_ioat.c b/module/accel/ioat/accel_engine_ioat.c
index 023b71c3f..a485878b7 100644
--- a/module/accel/ioat/accel_engine_ioat.c
+++ b/module/accel/ioat/accel_engine_ioat.c
@@ -134,7 +134,7 @@ accel_engine_ioat_get_ctx_size(void)
 }
 
 SPDK_ACCEL_MODULE_REGISTER(accel_engine_ioat_init, accel_engine_ioat_exit,
-			   accel_engine_ioat_config_text,
+			   accel_engine_ioat_config_text, NULL,
 			   accel_engine_ioat_get_ctx_size)
 
 static void
diff --git a/module/event/subsystems/accel/accel.c b/module/event/subsystems/accel/accel.c
index e9ec538bf..6d49bd5af 100644
--- a/module/event/subsystems/accel/accel.c
+++ b/module/event/subsystems/accel/accel.c
@@ -65,7 +65,7 @@ static struct spdk_subsystem g_spdk_subsystem_accel = {
 	.init = spdk_accel_engine_subsystem_initialize,
 	.fini = spdk_accel_engine_subsystem_finish,
 	.config = spdk_accel_engine_config_text,
-	.write_config_json = NULL,
+	.write_config_json = spdk_accel_write_config_json,
 };
 
 SPDK_SUBSYSTEM_REGISTER(g_spdk_subsystem_accel);
diff --git a/test/json_config/config_filter.py b/test/json_config/config_filter.py
index 4f81ab077..7a5cb4e80 100755
--- a/test/json_config/config_filter.py
+++ b/test/json_config/config_filter.py
@@ -23,6 +23,7 @@ def sort_json_object(o):
 
 def filter_methods(do_remove_global_rpcs):
     global_rpcs = [
+        'idxd_scan_accel_engine',
         'iscsi_set_options',
         'nvmf_set_config',
         'nvmf_set_max_subsystems',