diff --git a/tmp/ynl_build-tmp.MGVun8/old-code/ethtool-user.c b/tmp/ynl_build-tmp.MGVun8/new-code/ethtool-user.c
index 161544ca083f..2284137b0e92 100644
--- a/tmp/ynl_build-tmp.MGVun8/old-code/ethtool-user.c
+++ b/tmp/ynl_build-tmp.MGVun8/new-code/ethtool-user.c
@@ -80,6 +80,22 @@ const char *ethtool_op_str(int op)
 	return ethtool_op_strmap[op];
 }
 
+static const char * const ethtool_module_loopback_types_strmap[] = {
+	[0] = "media-side-output",
+	[1] = "media-side-input",
+	[2] = "host-side-output",
+	[3] = "host-side-input",
+};
+
+const char *
+ethtool_module_loopback_types_str(enum ethtool_module_loopback_types value)
+{
+	value = ffs(value) - 1;
+	if (value < 0 || value >= (int)YNL_ARRAY_SIZE(ethtool_module_loopback_types_strmap))
+		return NULL;
+	return ethtool_module_loopback_types_strmap[value];
+}
+
 static const char * const ethtool_udp_tunnel_type_strmap[] = {
 	[0] = "vxlan",
 	[1] = "geneve",
@@ -930,6 +946,8 @@ const struct ynl_policy_attr ethtool_module_policy[ETHTOOL_A_MODULE_MAX + 1] = {
 	[ETHTOOL_A_MODULE_HEADER] = { .name = "header", .type = YNL_PT_NEST, .nest = &ethtool_header_nest, },
 	[ETHTOOL_A_MODULE_POWER_MODE_POLICY] = { .name = "power-mode-policy", .type = YNL_PT_U8, },
 	[ETHTOOL_A_MODULE_POWER_MODE] = { .name = "power-mode", .type = YNL_PT_U8, },
+	[ETHTOOL_A_MODULE_LOOPBACK_CAPABILITIES] = { .name = "loopback-capabilities", .type = YNL_PT_UINT, },
+	[ETHTOOL_A_MODULE_LOOPBACK_ENABLED] = { .name = "loopback-enabled", .type = YNL_PT_UINT, },
 };
 
 const struct ynl_policy_nest ethtool_module_nest = {
@@ -6499,6 +6517,16 @@ int ethtool_module_get_rsp_parse(const struct nlmsghdr *nlh,
 				return YNL_PARSE_CB_ERROR;
 			dst->_present.power_mode = 1;
 			dst->power_mode = ynl_attr_get_u8(attr);
+		} else if (type == ETHTOOL_A_MODULE_LOOPBACK_CAPABILITIES) {
+			if (ynl_attr_validate(yarg, attr))
+				return YNL_PARSE_CB_ERROR;
+			dst->_present.loopback_capabilities = 1;
+			dst->loopback_capabilities = ynl_attr_get_uint(attr);
+		} else if (type == ETHTOOL_A_MODULE_LOOPBACK_ENABLED) {
+			if (ynl_attr_validate(yarg, attr))
+				return YNL_PARSE_CB_ERROR;
+			dst->_present.loopback_enabled = 1;
+			dst->loopback_enabled = ynl_attr_get_uint(attr);
 		}
 	}
 
@@ -6621,6 +6649,10 @@ int ethtool_module_set(struct ynl_sock *ys, struct ethtool_module_set_req *req)
 		ynl_attr_put_u8(nlh, ETHTOOL_A_MODULE_POWER_MODE_POLICY, req->power_mode_policy);
 	if (req->_present.power_mode)
 		ynl_attr_put_u8(nlh, ETHTOOL_A_MODULE_POWER_MODE, req->power_mode);
+	if (req->_present.loopback_capabilities)
+		ynl_attr_put_uint(nlh, ETHTOOL_A_MODULE_LOOPBACK_CAPABILITIES, req->loopback_capabilities);
+	if (req->_present.loopback_enabled)
+		ynl_attr_put_uint(nlh, ETHTOOL_A_MODULE_LOOPBACK_ENABLED, req->loopback_enabled);
 
 	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
diff --git a/tmp/ynl_build-tmp.MGVun8/old-code/ethtool-user.h b/tmp/ynl_build-tmp.MGVun8/new-code/ethtool-user.h
index 43e10c5f442b..5d88ed29d4fb 100644
--- a/tmp/ynl_build-tmp.MGVun8/old-code/ethtool-user.h
+++ b/tmp/ynl_build-tmp.MGVun8/new-code/ethtool-user.h
@@ -20,6 +20,8 @@ extern const struct ynl_family ynl_ethtool_family;
 
 /* Enums */
 const char *ethtool_op_str(int op);
+const char *
+ethtool_module_loopback_types_str(enum ethtool_module_loopback_types value);
 const char *ethtool_udp_tunnel_type_str(int value);
 const char *ethtool_stringset_str(enum ethtool_stringset value);
 const char *ethtool_header_flags_str(enum ethtool_header_flags value);
@@ -5733,11 +5735,15 @@ struct ethtool_module_get_rsp {
 		__u32 header:1;
 		__u32 power_mode_policy:1;
 		__u32 power_mode:1;
+		__u32 loopback_capabilities:1;
+		__u32 loopback_enabled:1;
 	} _present;
 
 	struct ethtool_header header;
 	__u8 power_mode_policy;
 	__u8 power_mode;
+	__u64 loopback_capabilities;
+	__u64 loopback_enabled;
 };
 
 void ethtool_module_get_rsp_free(struct ethtool_module_get_rsp *rsp);
@@ -5829,11 +5835,15 @@ struct ethtool_module_set_req {
 		__u32 header:1;
 		__u32 power_mode_policy:1;
 		__u32 power_mode:1;
+		__u32 loopback_capabilities:1;
+		__u32 loopback_enabled:1;
 	} _present;
 
 	struct ethtool_header header;
 	__u8 power_mode_policy;
 	__u8 power_mode;
+	__u64 loopback_capabilities;
+	__u64 loopback_enabled;
 };
 
 static inline struct ethtool_module_set_req *ethtool_module_set_req_alloc(void)
@@ -5891,6 +5901,20 @@ ethtool_module_set_req_set_power_mode(struct ethtool_module_set_req *req,
 	req->_present.power_mode = 1;
 	req->power_mode = power_mode;
 }
+static inline void
+ethtool_module_set_req_set_loopback_capabilities(struct ethtool_module_set_req *req,
+						 __u64 loopback_capabilities)
+{
+	req->_present.loopback_capabilities = 1;
+	req->loopback_capabilities = loopback_capabilities;
+}
+static inline void
+ethtool_module_set_req_set_loopback_enabled(struct ethtool_module_set_req *req,
+					    __u64 loopback_enabled)
+{
+	req->_present.loopback_enabled = 1;
+	req->loopback_enabled = loopback_enabled;
+}
 
 /*
  * Set module params.