164 int tb_xdomain_response(struct tb_xdomain *xd, const void *response,  in tb_xdomain_response()  argument
167 	return __tb_xdomain_response(xd->tb->ctl, response, size, type);  in tb_xdomain_response()
216 int tb_xdomain_request(struct tb_xdomain *xd, const void *request,  in tb_xdomain_request()  argument
221 	return __tb_xdomain_request(xd->tb->ctl, request, request_size,  in tb_xdomain_request()
415 	struct tb_xdomain *xd, u8 sequence, const struct tb_xdp_properties *req)  in tb_xdp_properties_response()  argument
427 	if (!uuid_equal(xd->local_uuid, &req->dst_uuid)) {  in tb_xdp_properties_response()
428 		tb_xdp_error_response(ctl, xd->route, sequence,  in tb_xdp_properties_response()
433 	mutex_lock(&xd->lock);  in tb_xdp_properties_response()
435 	if (req->offset >= xd->local_property_block_len) {  in tb_xdp_properties_response()
436 		mutex_unlock(&xd->lock);  in tb_xdp_properties_response()
440 	len = xd->local_property_block_len - req->offset;  in tb_xdp_properties_response()
446 		mutex_unlock(&xd->lock);  in tb_xdp_properties_response()
450 	tb_xdp_fill_header(&res->hdr, xd->route, sequence, PROPERTIES_RESPONSE,  in tb_xdp_properties_response()
452 	res->generation = xd->local_property_block_gen;  in tb_xdp_properties_response()
453 	res->data_length = xd->local_property_block_len;  in tb_xdp_properties_response()
455 	uuid_copy(&res->src_uuid, xd->local_uuid);  in tb_xdp_properties_response()
457 	memcpy(res->data, &xd->local_property_block[req->offset], len * 4);  in tb_xdp_properties_response()
459 	mutex_unlock(&xd->lock);  in tb_xdp_properties_response()
538 					     struct tb_xdomain *xd, u8 sequence)  in tb_xdp_link_state_status_response()  argument
540 	struct tb_switch *sw = tb_to_switch(xd->dev.parent);  in tb_xdp_link_state_status_response()
542 	struct tb_port *port = tb_port_at(xd->route, sw);  in tb_xdp_link_state_status_response()
547 	tb_xdp_fill_header(&res.hdr, xd->route, sequence,  in tb_xdp_link_state_status_response()
647 static void update_property_block(struct tb_xdomain *xd)  in update_property_block()  argument
650 	mutex_lock(&xd->lock);  in update_property_block()
655 	if (!xd->local_property_block ||  in update_property_block()
656 	    xd->local_property_block_gen < xdomain_property_block_gen) {  in update_property_block()
663 			dev_warn(&xd->dev, "failed to copy properties\n");  in update_property_block()
669 		tb_property_add_immediate(dir, "maxhopid", xd->local_max_hopid);  in update_property_block()
673 			dev_warn(&xd->dev, "local property block creation failed\n");  in update_property_block()
687 			dev_warn(&xd->dev, "property block generation failed\n");  in update_property_block()
695 		kfree(xd->local_property_block);  in update_property_block()
697 		xd->local_property_block = block;  in update_property_block()
698 		xd->local_property_block_len = block_len;  in update_property_block()
699 		xd->local_property_block_gen = xdomain_property_block_gen;  in update_property_block()
703 	mutex_unlock(&xd->lock);  in update_property_block()
714 	struct tb_xdomain *xd;  in tb_xdp_handle_request()  local
736 	xd = tb_xdomain_find_by_route_locked(tb, route);  in tb_xdp_handle_request()
737 	if (xd)  in tb_xdp_handle_request()
738 		update_property_block(xd);  in tb_xdp_handle_request()
743 		if (xd) {  in tb_xdp_handle_request()
744 			ret = tb_xdp_properties_response(tb, ctl, xd, sequence,  in tb_xdp_handle_request()
760 		if (xd && device_is_registered(&xd->dev))  in tb_xdp_handle_request()
761 			queue_delayed_work(tb->wq, &xd->state_work,  in tb_xdp_handle_request()
775 		if (xd) {  in tb_xdp_handle_request()
776 			ret = tb_xdp_link_state_status_response(tb, ctl, xd,  in tb_xdp_handle_request()
788 		if (xd && xd->state == XDOMAIN_STATE_BONDING_UUID_HIGH) {  in tb_xdp_handle_request()
794 			xd->target_link_width = lsc->tlw;  in tb_xdp_handle_request()
795 			queue_delayed_work(tb->wq, &xd->state_work,  in tb_xdp_handle_request()
810 	tb_xdomain_put(xd);  in tb_xdp_handle_request()
968 	struct tb_xdomain *xd = tb_service_parent(svc);  in tb_service_release()  local
971 	ida_simple_remove(&xd->service_ids, svc->id);  in tb_service_release()
986 	struct tb_xdomain *xd = data;  in remove_missing_service()  local
993 	if (!tb_property_find(xd->remote_properties, svc->key,  in remove_missing_service()
1039 static void enumerate_services(struct tb_xdomain *xd)  in enumerate_services()  argument
1050 	device_for_each_child_reverse(&xd->dev, xd, remove_missing_service);  in enumerate_services()
1053 	tb_property_for_each(xd->remote_properties, p) {  in enumerate_services()
1058 		dev = device_find_child(&xd->dev, p, find_service);  in enumerate_services()
1073 		id = ida_simple_get(&xd->service_ids, 0, 0, GFP_KERNEL);  in enumerate_services()
1082 		svc->dev.parent = &xd->dev;  in enumerate_services()
1083 		dev_set_name(&svc->dev, "%s.%d", dev_name(&xd->dev), svc->id);  in enumerate_services()
1094 static int populate_properties(struct tb_xdomain *xd,  in populate_properties()  argument
1103 	xd->device = p->value.immediate;  in populate_properties()
1108 	xd->vendor = p->value.immediate;  in populate_properties()
1116 	xd->remote_max_hopid = p ? p->value.immediate : XDOMAIN_DEFAULT_MAX_HOPID;  in populate_properties()
1118 	kfree(xd->device_name);  in populate_properties()
1119 	xd->device_name = NULL;  in populate_properties()
1120 	kfree(xd->vendor_name);  in populate_properties()
1121 	xd->vendor_name = NULL;  in populate_properties()
1126 		xd->device_name = kstrdup(p->value.text, GFP_KERNEL);  in populate_properties()
1129 		xd->vendor_name = kstrdup(p->value.text, GFP_KERNEL);  in populate_properties()
1134 static int tb_xdomain_update_link_attributes(struct tb_xdomain *xd)  in tb_xdomain_update_link_attributes()  argument
1140 	port = tb_port_at(xd->route, tb_xdomain_parent(xd));  in tb_xdomain_update_link_attributes()
1146 	if (xd->link_speed != ret)  in tb_xdomain_update_link_attributes()
1149 	xd->link_speed = ret;  in tb_xdomain_update_link_attributes()
1155 	if (xd->link_width != ret)  in tb_xdomain_update_link_attributes()
1158 	xd->link_width = ret;  in tb_xdomain_update_link_attributes()
1161 		kobject_uevent(&xd->dev.kobj, KOBJ_CHANGE);  in tb_xdomain_update_link_attributes()
1166 static int tb_xdomain_get_uuid(struct tb_xdomain *xd)  in tb_xdomain_get_uuid()  argument
1168 	struct tb *tb = xd->tb;  in tb_xdomain_get_uuid()
1173 	dev_dbg(&xd->dev, "requesting remote UUID\n");  in tb_xdomain_get_uuid()
1175 	ret = tb_xdp_uuid_request(tb->ctl, xd->route, xd->state_retries, &uuid,  in tb_xdomain_get_uuid()
1178 		if (xd->state_retries-- > 0) {  in tb_xdomain_get_uuid()
1179 			dev_dbg(&xd->dev, "failed to request UUID, retrying\n");  in tb_xdomain_get_uuid()
1182 			dev_dbg(&xd->dev, "failed to read remote UUID\n");  in tb_xdomain_get_uuid()
1187 	dev_dbg(&xd->dev, "got remote UUID %pUb\n", &uuid);  in tb_xdomain_get_uuid()
1189 	if (uuid_equal(&uuid, xd->local_uuid)) {  in tb_xdomain_get_uuid()
1190 		if (route == xd->route)  in tb_xdomain_get_uuid()
1191 			dev_dbg(&xd->dev, "loop back detected\n");  in tb_xdomain_get_uuid()
1193 			dev_dbg(&xd->dev, "intra-domain loop detected\n");  in tb_xdomain_get_uuid()
1196 		xd->bonding_possible = false;  in tb_xdomain_get_uuid()
1204 	if (xd->remote_uuid && !uuid_equal(&uuid, xd->remote_uuid)) {  in tb_xdomain_get_uuid()
1205 		dev_dbg(&xd->dev, "remote UUID is different, unplugging\n");  in tb_xdomain_get_uuid()
1206 		xd->is_unplugged = true;  in tb_xdomain_get_uuid()
1211 	if (!xd->remote_uuid) {  in tb_xdomain_get_uuid()
1212 		xd->remote_uuid = kmemdup(&uuid, sizeof(uuid_t), GFP_KERNEL);  in tb_xdomain_get_uuid()
1213 		if (!xd->remote_uuid)  in tb_xdomain_get_uuid()
1220 static int tb_xdomain_get_link_status(struct tb_xdomain *xd)  in tb_xdomain_get_link_status()  argument
1222 	struct tb *tb = xd->tb;  in tb_xdomain_get_link_status()
1226 	dev_dbg(&xd->dev, "sending link state status request to %pUb\n",  in tb_xdomain_get_link_status()
1227 		xd->remote_uuid);  in tb_xdomain_get_link_status()
1229 	ret = tb_xdp_link_state_status_request(tb->ctl, xd->route,  in tb_xdomain_get_link_status()
1230 					       xd->state_retries, &slw, &tlw, &sls,  in tb_xdomain_get_link_status()
1233 		if (ret != -EOPNOTSUPP && xd->state_retries-- > 0) {  in tb_xdomain_get_link_status()
1234 			dev_dbg(&xd->dev,  in tb_xdomain_get_link_status()
1238 		dev_dbg(&xd->dev, "failed to receive remote link status\n");  in tb_xdomain_get_link_status()
1242 	dev_dbg(&xd->dev, "remote link supports width %#x speed %#x\n", slw, sls);  in tb_xdomain_get_link_status()
1245 		dev_dbg(&xd->dev, "remote adapter is single lane only\n");  in tb_xdomain_get_link_status()
1252 static int tb_xdomain_link_state_change(struct tb_xdomain *xd,  in tb_xdomain_link_state_change()  argument
1255 	struct tb_switch *sw = tb_to_switch(xd->dev.parent);  in tb_xdomain_link_state_change()
1256 	struct tb_port *port = tb_port_at(xd->route, sw);  in tb_xdomain_link_state_change()
1257 	struct tb *tb = xd->tb;  in tb_xdomain_link_state_change()
1275 	dev_dbg(&xd->dev, "sending link state change request with width %#x speed %#x\n",  in tb_xdomain_link_state_change()
1278 	ret = tb_xdp_link_state_change_request(tb->ctl, xd->route,  in tb_xdomain_link_state_change()
1279 					       xd->state_retries, tlw, tls);  in tb_xdomain_link_state_change()
1281 		if (ret != -EOPNOTSUPP && xd->state_retries-- > 0) {  in tb_xdomain_link_state_change()
1282 			dev_dbg(&xd->dev,  in tb_xdomain_link_state_change()
1286 		dev_err(&xd->dev, "failed request link state change, aborting\n");  in tb_xdomain_link_state_change()
1290 	dev_dbg(&xd->dev, "received link state change response\n");  in tb_xdomain_link_state_change()
1294 static int tb_xdomain_bond_lanes_uuid_high(struct tb_xdomain *xd)  in tb_xdomain_bond_lanes_uuid_high()  argument
1299 	if (xd->target_link_width == LANE_ADP_CS_1_TARGET_WIDTH_SINGLE) {  in tb_xdomain_bond_lanes_uuid_high()
1301 	} else if (xd->target_link_width == LANE_ADP_CS_1_TARGET_WIDTH_DUAL) {  in tb_xdomain_bond_lanes_uuid_high()
1304 		if (xd->state_retries-- > 0) {  in tb_xdomain_bond_lanes_uuid_high()
1305 			dev_dbg(&xd->dev,  in tb_xdomain_bond_lanes_uuid_high()
1309 		dev_dbg(&xd->dev, "timeout waiting for link change request\n");  in tb_xdomain_bond_lanes_uuid_high()
1313 	port = tb_port_at(xd->route, tb_xdomain_parent(xd));  in tb_xdomain_bond_lanes_uuid_high()
1336 		dev_warn(&xd->dev, "error waiting for link width to become %d\n",  in tb_xdomain_bond_lanes_uuid_high()
1345 	tb_xdomain_update_link_attributes(xd);  in tb_xdomain_bond_lanes_uuid_high()
1347 	dev_dbg(&xd->dev, "lane bonding %sabled\n", width == 2 ? "en" : "dis");  in tb_xdomain_bond_lanes_uuid_high()
1351 static int tb_xdomain_get_properties(struct tb_xdomain *xd)  in tb_xdomain_get_properties()  argument
1354 	struct tb *tb = xd->tb;  in tb_xdomain_get_properties()
1360 	dev_dbg(&xd->dev, "requesting remote properties\n");  in tb_xdomain_get_properties()
1362 	ret = tb_xdp_properties_request(tb->ctl, xd->route, xd->local_uuid,  in tb_xdomain_get_properties()
1363 					xd->remote_uuid, xd->state_retries,  in tb_xdomain_get_properties()
1366 		if (xd->state_retries-- > 0) {  in tb_xdomain_get_properties()
1367 			dev_dbg(&xd->dev,  in tb_xdomain_get_properties()
1372 			dev_err(&xd->dev,  in tb_xdomain_get_properties()
1374 				xd->remote_uuid);  in tb_xdomain_get_properties()
1380 	mutex_lock(&xd->lock);  in tb_xdomain_get_properties()
1383 	if (xd->remote_properties && gen <= xd->remote_property_block_gen) {  in tb_xdomain_get_properties()
1390 		dev_err(&xd->dev, "failed to parse XDomain properties\n");  in tb_xdomain_get_properties()
1395 	ret = populate_properties(xd, dir);  in tb_xdomain_get_properties()
1397 		dev_err(&xd->dev, "missing XDomain properties in response\n");  in tb_xdomain_get_properties()
1402 	if (xd->remote_properties) {  in tb_xdomain_get_properties()
1403 		tb_property_free_dir(xd->remote_properties);  in tb_xdomain_get_properties()
1407 	xd->remote_properties = dir;  in tb_xdomain_get_properties()
1408 	xd->remote_property_block_gen = gen;  in tb_xdomain_get_properties()
1410 	tb_xdomain_update_link_attributes(xd);  in tb_xdomain_get_properties()
1412 	mutex_unlock(&xd->lock);  in tb_xdomain_get_properties()
1428 		if (xd->bonding_possible) {  in tb_xdomain_get_properties()
1431 			port = tb_port_at(xd->route, tb_xdomain_parent(xd));  in tb_xdomain_get_properties()
1436 		if (device_add(&xd->dev)) {  in tb_xdomain_get_properties()
1437 			dev_err(&xd->dev, "failed to add XDomain device\n");  in tb_xdomain_get_properties()
1440 		dev_info(&xd->dev, "new host found, vendor=%#x device=%#x\n",  in tb_xdomain_get_properties()
1441 			 xd->vendor, xd->device);  in tb_xdomain_get_properties()
1442 		if (xd->vendor_name && xd->device_name)  in tb_xdomain_get_properties()
1443 			dev_info(&xd->dev, "%s %s\n", xd->vendor_name,  in tb_xdomain_get_properties()
1444 				 xd->device_name);  in tb_xdomain_get_properties()
1446 		tb_xdomain_debugfs_init(xd);  in tb_xdomain_get_properties()
1448 		kobject_uevent(&xd->dev.kobj, KOBJ_CHANGE);  in tb_xdomain_get_properties()
1451 	enumerate_services(xd);  in tb_xdomain_get_properties()
1458 	mutex_unlock(&xd->lock);  in tb_xdomain_get_properties()
1463 static void tb_xdomain_queue_uuid(struct tb_xdomain *xd)  in tb_xdomain_queue_uuid()  argument
1465 	xd->state = XDOMAIN_STATE_UUID;  in tb_xdomain_queue_uuid()
1466 	xd->state_retries = XDOMAIN_RETRIES;  in tb_xdomain_queue_uuid()
1467 	queue_delayed_work(xd->tb->wq, &xd->state_work,  in tb_xdomain_queue_uuid()
1471 static void tb_xdomain_queue_link_status(struct tb_xdomain *xd)  in tb_xdomain_queue_link_status()  argument
1473 	xd->state = XDOMAIN_STATE_LINK_STATUS;  in tb_xdomain_queue_link_status()
1474 	xd->state_retries = XDOMAIN_RETRIES;  in tb_xdomain_queue_link_status()
1475 	queue_delayed_work(xd->tb->wq, &xd->state_work,  in tb_xdomain_queue_link_status()
1479 static void tb_xdomain_queue_link_status2(struct tb_xdomain *xd)  in tb_xdomain_queue_link_status2()  argument
1481 	xd->state = XDOMAIN_STATE_LINK_STATUS2;  in tb_xdomain_queue_link_status2()
1482 	xd->state_retries = XDOMAIN_RETRIES;  in tb_xdomain_queue_link_status2()
1483 	queue_delayed_work(xd->tb->wq, &xd->state_work,  in tb_xdomain_queue_link_status2()
1487 static void tb_xdomain_queue_bonding(struct tb_xdomain *xd)  in tb_xdomain_queue_bonding()  argument
1489 	if (memcmp(xd->local_uuid, xd->remote_uuid, UUID_SIZE) > 0) {  in tb_xdomain_queue_bonding()
1490 		dev_dbg(&xd->dev, "we have higher UUID, other side bonds the lanes\n");  in tb_xdomain_queue_bonding()
1491 		xd->state = XDOMAIN_STATE_BONDING_UUID_HIGH;  in tb_xdomain_queue_bonding()
1493 		dev_dbg(&xd->dev, "we have lower UUID, bonding lanes\n");  in tb_xdomain_queue_bonding()
1494 		xd->state = XDOMAIN_STATE_LINK_STATE_CHANGE;  in tb_xdomain_queue_bonding()
1497 	xd->state_retries = XDOMAIN_RETRIES;  in tb_xdomain_queue_bonding()
1498 	queue_delayed_work(xd->tb->wq, &xd->state_work,  in tb_xdomain_queue_bonding()
1502 static void tb_xdomain_queue_bonding_uuid_low(struct tb_xdomain *xd)  in tb_xdomain_queue_bonding_uuid_low()  argument
1504 	xd->state = XDOMAIN_STATE_BONDING_UUID_LOW;  in tb_xdomain_queue_bonding_uuid_low()
1505 	xd->state_retries = XDOMAIN_RETRIES;  in tb_xdomain_queue_bonding_uuid_low()
1506 	queue_delayed_work(xd->tb->wq, &xd->state_work,  in tb_xdomain_queue_bonding_uuid_low()
1510 static void tb_xdomain_queue_properties(struct tb_xdomain *xd)  in tb_xdomain_queue_properties()  argument
1512 	xd->state = XDOMAIN_STATE_PROPERTIES;  in tb_xdomain_queue_properties()
1513 	xd->state_retries = XDOMAIN_RETRIES;  in tb_xdomain_queue_properties()
1514 	queue_delayed_work(xd->tb->wq, &xd->state_work,  in tb_xdomain_queue_properties()
1518 static void tb_xdomain_queue_properties_changed(struct tb_xdomain *xd)  in tb_xdomain_queue_properties_changed()  argument
1520 	xd->properties_changed_retries = XDOMAIN_RETRIES;  in tb_xdomain_queue_properties_changed()
1521 	queue_delayed_work(xd->tb->wq, &xd->properties_changed_work,  in tb_xdomain_queue_properties_changed()
1527 	struct tb_xdomain *xd = container_of(work, typeof(*xd), state_work.work);  in tb_xdomain_state_work()  local
1528 	int ret, state = xd->state;  in tb_xdomain_state_work()
1534 	dev_dbg(&xd->dev, "running state %s\n", state_names[state]);  in tb_xdomain_state_work()
1538 		if (xd->needs_uuid) {  in tb_xdomain_state_work()
1539 			tb_xdomain_queue_uuid(xd);  in tb_xdomain_state_work()
1541 			tb_xdomain_queue_properties_changed(xd);  in tb_xdomain_state_work()
1542 			tb_xdomain_queue_properties(xd);  in tb_xdomain_state_work()
1547 		ret = tb_xdomain_get_uuid(xd);  in tb_xdomain_state_work()
1551 			xd->state = XDOMAIN_STATE_ERROR;  in tb_xdomain_state_work()
1553 			tb_xdomain_queue_properties_changed(xd);  in tb_xdomain_state_work()
1554 			if (xd->bonding_possible)  in tb_xdomain_state_work()
1555 				tb_xdomain_queue_link_status(xd);  in tb_xdomain_state_work()
1557 				tb_xdomain_queue_properties(xd);  in tb_xdomain_state_work()
1562 		ret = tb_xdomain_get_link_status(xd);  in tb_xdomain_state_work()
1572 			tb_xdomain_queue_properties(xd);  in tb_xdomain_state_work()
1574 			tb_xdomain_queue_bonding(xd);  in tb_xdomain_state_work()
1579 		ret = tb_xdomain_link_state_change(xd, 2);  in tb_xdomain_state_work()
1583 			tb_xdomain_queue_properties(xd);  in tb_xdomain_state_work()
1585 			tb_xdomain_queue_link_status2(xd);  in tb_xdomain_state_work()
1590 		ret = tb_xdomain_get_link_status(xd);  in tb_xdomain_state_work()
1594 			tb_xdomain_queue_properties(xd);  in tb_xdomain_state_work()
1596 			tb_xdomain_queue_bonding_uuid_low(xd);  in tb_xdomain_state_work()
1601 		tb_xdomain_lane_bonding_enable(xd);  in tb_xdomain_state_work()
1602 		tb_xdomain_queue_properties(xd);  in tb_xdomain_state_work()
1606 		if (tb_xdomain_bond_lanes_uuid_high(xd) == -EAGAIN)  in tb_xdomain_state_work()
1608 		tb_xdomain_queue_properties(xd);  in tb_xdomain_state_work()
1612 		ret = tb_xdomain_get_properties(xd);  in tb_xdomain_state_work()
1616 			xd->state = XDOMAIN_STATE_ERROR;  in tb_xdomain_state_work()
1618 			xd->state = XDOMAIN_STATE_ENUMERATED;  in tb_xdomain_state_work()
1623 		tb_xdomain_queue_properties(xd);  in tb_xdomain_state_work()
1630 		dev_warn(&xd->dev, "unexpected state %d\n", state);  in tb_xdomain_state_work()
1637 	queue_delayed_work(xd->tb->wq, &xd->state_work,  in tb_xdomain_state_work()
1643 	struct tb_xdomain *xd = container_of(work, typeof(*xd),  in tb_xdomain_properties_changed()  local
1647 	dev_dbg(&xd->dev, "sending properties changed notification\n");  in tb_xdomain_properties_changed()
1649 	ret = tb_xdp_properties_changed_request(xd->tb->ctl, xd->route,  in tb_xdomain_properties_changed()
1650 				xd->properties_changed_retries, xd->local_uuid);  in tb_xdomain_properties_changed()
1652 		if (xd->properties_changed_retries-- > 0) {  in tb_xdomain_properties_changed()
1653 			dev_dbg(&xd->dev,  in tb_xdomain_properties_changed()
1655 			queue_delayed_work(xd->tb->wq,  in tb_xdomain_properties_changed()
1656 					   &xd->properties_changed_work,  in tb_xdomain_properties_changed()
1659 		dev_err(&xd->dev, "failed to send properties changed notification\n");  in tb_xdomain_properties_changed()
1663 	xd->properties_changed_retries = XDOMAIN_RETRIES;  in tb_xdomain_properties_changed()
1669 	struct tb_xdomain *xd = container_of(dev, struct tb_xdomain, dev);  in device_show()  local
1671 	return sysfs_emit(buf, "%#x\n", xd->device);  in device_show()
1678 	struct tb_xdomain *xd = container_of(dev, struct tb_xdomain, dev);  in device_name_show()  local
1681 	if (mutex_lock_interruptible(&xd->lock))  in device_name_show()
1683 	ret = sysfs_emit(buf, "%s\n", xd->device_name ?: "");  in device_name_show()
1684 	mutex_unlock(&xd->lock);  in device_name_show()
1693 	struct tb_xdomain *xd = container_of(dev, struct tb_xdomain, dev);  in maxhopid_show()  local
1695 	return sysfs_emit(buf, "%d\n", xd->remote_max_hopid);  in maxhopid_show()
1702 	struct tb_xdomain *xd = container_of(dev, struct tb_xdomain, dev);  in vendor_show()  local
1704 	return sysfs_emit(buf, "%#x\n", xd->vendor);  in vendor_show()
1711 	struct tb_xdomain *xd = container_of(dev, struct tb_xdomain, dev);  in vendor_name_show()  local
1714 	if (mutex_lock_interruptible(&xd->lock))  in vendor_name_show()
1716 	ret = sysfs_emit(buf, "%s\n", xd->vendor_name ?: "");  in vendor_name_show()
1717 	mutex_unlock(&xd->lock);  in vendor_name_show()
1726 	struct tb_xdomain *xd = container_of(dev, struct tb_xdomain, dev);  in unique_id_show()  local
1728 	return sysfs_emit(buf, "%pUb\n", xd->remote_uuid);  in unique_id_show()
1735 	struct tb_xdomain *xd = container_of(dev, struct tb_xdomain, dev);  in speed_show()  local
1737 	return sysfs_emit(buf, "%u.0 Gb/s\n", xd->link_speed);  in speed_show()
1746 	struct tb_xdomain *xd = container_of(dev, struct tb_xdomain, dev);  in lanes_show()  local
1748 	return sysfs_emit(buf, "%u\n", xd->link_width);  in lanes_show()
1779 	struct tb_xdomain *xd = container_of(dev, struct tb_xdomain, dev);  in tb_xdomain_release()  local
1781 	put_device(xd->dev.parent);  in tb_xdomain_release()
1783 	kfree(xd->local_property_block);  in tb_xdomain_release()
1784 	tb_property_free_dir(xd->remote_properties);  in tb_xdomain_release()
1785 	ida_destroy(&xd->out_hopids);  in tb_xdomain_release()
1786 	ida_destroy(&xd->in_hopids);  in tb_xdomain_release()
1787 	ida_destroy(&xd->service_ids);  in tb_xdomain_release()
1789 	kfree(xd->local_uuid);  in tb_xdomain_release()
1790 	kfree(xd->remote_uuid);  in tb_xdomain_release()
1791 	kfree(xd->device_name);  in tb_xdomain_release()
1792 	kfree(xd->vendor_name);  in tb_xdomain_release()
1793 	kfree(xd);  in tb_xdomain_release()
1796 static void start_handshake(struct tb_xdomain *xd)  in start_handshake()  argument
1798 	xd->state = XDOMAIN_STATE_INIT;  in start_handshake()
1799 	queue_delayed_work(xd->tb->wq, &xd->state_work,  in start_handshake()
1803 static void stop_handshake(struct tb_xdomain *xd)  in stop_handshake()  argument
1805 	cancel_delayed_work_sync(&xd->properties_changed_work);  in stop_handshake()
1806 	cancel_delayed_work_sync(&xd->state_work);  in stop_handshake()
1807 	xd->properties_changed_retries = 0;  in stop_handshake()
1808 	xd->state_retries = 0;  in stop_handshake()
1851 	struct tb_xdomain *xd;  in tb_xdomain_alloc()  local
1858 	xd = kzalloc(sizeof(*xd), GFP_KERNEL);  in tb_xdomain_alloc()
1859 	if (!xd)  in tb_xdomain_alloc()
1862 	xd->tb = tb;  in tb_xdomain_alloc()
1863 	xd->route = route;  in tb_xdomain_alloc()
1864 	xd->local_max_hopid = down->config.max_in_hop_id;  in tb_xdomain_alloc()
1865 	ida_init(&xd->service_ids);  in tb_xdomain_alloc()
1866 	ida_init(&xd->in_hopids);  in tb_xdomain_alloc()
1867 	ida_init(&xd->out_hopids);  in tb_xdomain_alloc()
1868 	mutex_init(&xd->lock);  in tb_xdomain_alloc()
1869 	INIT_DELAYED_WORK(&xd->state_work, tb_xdomain_state_work);  in tb_xdomain_alloc()
1870 	INIT_DELAYED_WORK(&xd->properties_changed_work,  in tb_xdomain_alloc()
1873 	xd->local_uuid = kmemdup(local_uuid, sizeof(uuid_t), GFP_KERNEL);  in tb_xdomain_alloc()
1874 	if (!xd->local_uuid)  in tb_xdomain_alloc()
1878 		xd->remote_uuid = kmemdup(remote_uuid, sizeof(uuid_t),  in tb_xdomain_alloc()
1880 		if (!xd->remote_uuid)  in tb_xdomain_alloc()
1883 		xd->needs_uuid = true;  in tb_xdomain_alloc()
1884 		xd->bonding_possible = !!down->dual_link_port;  in tb_xdomain_alloc()
1887 	device_initialize(&xd->dev);  in tb_xdomain_alloc()
1888 	xd->dev.parent = get_device(parent);  in tb_xdomain_alloc()
1889 	xd->dev.bus = &tb_bus_type;  in tb_xdomain_alloc()
1890 	xd->dev.type = &tb_xdomain_type;  in tb_xdomain_alloc()
1891 	xd->dev.groups = xdomain_attr_groups;  in tb_xdomain_alloc()
1892 	dev_set_name(&xd->dev, "%u-%llx", tb->index, route);  in tb_xdomain_alloc()
1894 	dev_dbg(&xd->dev, "local UUID %pUb\n", local_uuid);  in tb_xdomain_alloc()
1896 		dev_dbg(&xd->dev, "remote UUID %pUb\n", remote_uuid);  in tb_xdomain_alloc()
1902 	pm_runtime_set_active(&xd->dev);  in tb_xdomain_alloc()
1903 	pm_runtime_get_noresume(&xd->dev);  in tb_xdomain_alloc()
1904 	pm_runtime_enable(&xd->dev);  in tb_xdomain_alloc()
1906 	return xd;  in tb_xdomain_alloc()
1909 	kfree(xd->local_uuid);  in tb_xdomain_alloc()
1911 	kfree(xd);  in tb_xdomain_alloc()
1925 void tb_xdomain_add(struct tb_xdomain *xd)  in tb_xdomain_add()  argument
1928 	start_handshake(xd);  in tb_xdomain_add()
1945 void tb_xdomain_remove(struct tb_xdomain *xd)  in tb_xdomain_remove()  argument
1947 	tb_xdomain_debugfs_remove(xd);  in tb_xdomain_remove()
1949 	stop_handshake(xd);  in tb_xdomain_remove()
1951 	device_for_each_child_reverse(&xd->dev, xd, unregister_service);  in tb_xdomain_remove()
1958 	pm_runtime_disable(&xd->dev);  in tb_xdomain_remove()
1959 	pm_runtime_put_noidle(&xd->dev);  in tb_xdomain_remove()
1960 	pm_runtime_set_suspended(&xd->dev);  in tb_xdomain_remove()
1962 	if (!device_is_registered(&xd->dev)) {  in tb_xdomain_remove()
1963 		put_device(&xd->dev);  in tb_xdomain_remove()
1965 		dev_info(&xd->dev, "host disconnected\n");  in tb_xdomain_remove()
1966 		device_unregister(&xd->dev);  in tb_xdomain_remove()
1980 int tb_xdomain_lane_bonding_enable(struct tb_xdomain *xd)  in tb_xdomain_lane_bonding_enable()  argument
1985 	port = tb_port_at(xd->route, tb_xdomain_parent(xd));  in tb_xdomain_lane_bonding_enable()
2012 	tb_xdomain_update_link_attributes(xd);  in tb_xdomain_lane_bonding_enable()
2014 	dev_dbg(&xd->dev, "lane bonding enabled\n");  in tb_xdomain_lane_bonding_enable()
2026 void tb_xdomain_lane_bonding_disable(struct tb_xdomain *xd)  in tb_xdomain_lane_bonding_disable()  argument
2030 	port = tb_port_at(xd->route, tb_xdomain_parent(xd));  in tb_xdomain_lane_bonding_disable()
2037 		tb_xdomain_update_link_attributes(xd);  in tb_xdomain_lane_bonding_disable()
2039 		dev_dbg(&xd->dev, "lane bonding disabled\n");  in tb_xdomain_lane_bonding_disable()
2054 int tb_xdomain_alloc_in_hopid(struct tb_xdomain *xd, int hopid)  in tb_xdomain_alloc_in_hopid()  argument
2058 	if (hopid < TB_PATH_MIN_HOPID || hopid > xd->local_max_hopid)  in tb_xdomain_alloc_in_hopid()
2061 	return ida_alloc_range(&xd->in_hopids, hopid, xd->local_max_hopid,  in tb_xdomain_alloc_in_hopid()
2076 int tb_xdomain_alloc_out_hopid(struct tb_xdomain *xd, int hopid)  in tb_xdomain_alloc_out_hopid()  argument
2080 	if (hopid < TB_PATH_MIN_HOPID || hopid > xd->remote_max_hopid)  in tb_xdomain_alloc_out_hopid()
2083 	return ida_alloc_range(&xd->out_hopids, hopid, xd->remote_max_hopid,  in tb_xdomain_alloc_out_hopid()
2093 void tb_xdomain_release_in_hopid(struct tb_xdomain *xd, int hopid)  in tb_xdomain_release_in_hopid()  argument
2095 	ida_free(&xd->in_hopids, hopid);  in tb_xdomain_release_in_hopid()
2104 void tb_xdomain_release_out_hopid(struct tb_xdomain *xd, int hopid)  in tb_xdomain_release_out_hopid()  argument
2106 	ida_free(&xd->out_hopids, hopid);  in tb_xdomain_release_out_hopid()
2125 int tb_xdomain_enable_paths(struct tb_xdomain *xd, int transmit_path,  in tb_xdomain_enable_paths()  argument
2129 	return tb_domain_approve_xdomain_paths(xd->tb, xd, transmit_path,  in tb_xdomain_enable_paths()
2150 int tb_xdomain_disable_paths(struct tb_xdomain *xd, int transmit_path,  in tb_xdomain_disable_paths()  argument
2154 	return tb_domain_disconnect_xdomain_paths(xd->tb, xd, transmit_path,  in tb_xdomain_disable_paths()
2173 		struct tb_xdomain *xd;  in switch_find_xdomain()  local
2176 			xd = port->xdomain;  in switch_find_xdomain()
2179 				if (xd->remote_uuid &&  in switch_find_xdomain()
2180 				    uuid_equal(xd->remote_uuid, lookup->uuid))  in switch_find_xdomain()
2181 					return xd;  in switch_find_xdomain()
2183 				   lookup->link == xd->link &&  in switch_find_xdomain()
2184 				   lookup->depth == xd->depth) {  in switch_find_xdomain()
2185 				return xd;  in switch_find_xdomain()
2187 				   lookup->route == xd->route) {  in switch_find_xdomain()
2188 				return xd;  in switch_find_xdomain()
2191 			xd = switch_find_xdomain(port->remote->sw, lookup);  in switch_find_xdomain()
2192 			if (xd)  in switch_find_xdomain()
2193 				return xd;  in switch_find_xdomain()
2218 	struct tb_xdomain *xd;  in tb_xdomain_find_by_uuid()  local
2223 	xd = switch_find_xdomain(tb->root_switch, &lookup);  in tb_xdomain_find_by_uuid()
2224 	return tb_xdomain_get(xd);  in tb_xdomain_find_by_uuid()
2248 	struct tb_xdomain *xd;  in tb_xdomain_find_by_link_depth()  local
2254 	xd = switch_find_xdomain(tb->root_switch, &lookup);  in tb_xdomain_find_by_link_depth()
2255 	return tb_xdomain_get(xd);  in tb_xdomain_find_by_link_depth()
2276 	struct tb_xdomain *xd;  in tb_xdomain_find_by_route()  local
2281 	xd = switch_find_xdomain(tb->root_switch, &lookup);  in tb_xdomain_find_by_route()
2282 	return tb_xdomain_get(xd);  in tb_xdomain_find_by_route()
2331 	struct tb_xdomain *xd;  in update_xdomain()  local
2333 	xd = tb_to_xdomain(dev);  in update_xdomain()
2334 	if (xd) {  in update_xdomain()
2335 		queue_delayed_work(xd->tb->wq, &xd->properties_changed_work,  in update_xdomain()