38 static void tb_scan_switch(struct tb_switch *sw)  in tb_scan_switch()  argument
41 	for (i = 1; i <= sw->config.max_port_number; i++)  in tb_scan_switch()
42 		tb_scan_port(&sw->ports[i]);  in tb_scan_switch()
50 	struct tb_switch *sw;  in tb_scan_port()  local
66 	sw = tb_switch_alloc(port->sw->tb, &port->sw->dev,  in tb_scan_port()
68 	if (!sw)  in tb_scan_port()
71 	if (tb_switch_configure(sw)) {  in tb_scan_port()
72 		tb_switch_put(sw);  in tb_scan_port()
76 	sw->authorized = true;  in tb_scan_port()
78 	if (tb_switch_add(sw)) {  in tb_scan_port()
79 		tb_switch_put(sw);  in tb_scan_port()
83 	port->remote = tb_upstream_port(sw);  in tb_scan_port()
84 	tb_upstream_port(sw)->remote = port;  in tb_scan_port()
85 	tb_scan_switch(sw);  in tb_scan_port()
109 static void tb_free_unplugged_children(struct tb_switch *sw)  in tb_free_unplugged_children()  argument
112 	for (i = 1; i <= sw->config.max_port_number; i++) {  in tb_free_unplugged_children()
113 		struct tb_port *port = &sw->ports[i];  in tb_free_unplugged_children()
118 		if (port->remote->sw->is_unplugged) {  in tb_free_unplugged_children()
119 			tb_switch_remove(port->remote->sw);  in tb_free_unplugged_children()
122 			tb_free_unplugged_children(port->remote->sw);  in tb_free_unplugged_children()
129  * find_pci_up_port() - return the first PCIe up port on @sw or NULL
131 static struct tb_port *tb_find_pci_up_port(struct tb_switch *sw)  in tb_find_pci_up_port()  argument
134 	for (i = 1; i <= sw->config.max_port_number; i++)  in tb_find_pci_up_port()
135 		if (sw->ports[i].config.type == TB_TYPE_PCIE_UP)  in tb_find_pci_up_port()
136 			return &sw->ports[i];  in tb_find_pci_up_port()
141  * find_unused_down_port() - return the first inactive PCIe down port on @sw
143 static struct tb_port *tb_find_unused_down_port(struct tb_switch *sw)  in tb_find_unused_down_port()  argument
149 	for (i = 1; i <= sw->config.max_port_number; i++) {  in tb_find_unused_down_port()
150 		if (tb_is_upstream_port(&sw->ports[i]))  in tb_find_unused_down_port()
152 		if (sw->ports[i].config.type != TB_TYPE_PCIE_DOWN)  in tb_find_unused_down_port()
154 		cap = tb_port_find_cap(&sw->ports[i], TB_PORT_CAP_ADAP);  in tb_find_unused_down_port()
157 		res = tb_port_read(&sw->ports[i], &data, TB_CFG_PORT, cap, 1);  in tb_find_unused_down_port()
162 		return &sw->ports[i];  in tb_find_unused_down_port()
178 	struct tb_switch *sw;  in tb_activate_pcie_devices()  local
192 		sw = tb->root_switch->ports[i].remote->sw;  in tb_activate_pcie_devices()
193 		up_port = tb_find_pci_up_port(sw);  in tb_activate_pcie_devices()
195 			tb_sw_info(sw, "no PCIe devices found, aborting\n");  in tb_activate_pcie_devices()
255 	struct tb_switch *sw;  in tb_handle_hotplug()  local
261 	sw = tb_switch_find_by_route(tb, ev->route);  in tb_handle_hotplug()
262 	if (!sw) {  in tb_handle_hotplug()
268 	if (ev->port > sw->config.max_port_number) {  in tb_handle_hotplug()
274 	port = &sw->ports[ev->port];  in tb_handle_hotplug()
284 			tb_sw_set_unplugged(port->remote->sw);  in tb_handle_hotplug()
286 			tb_switch_remove(port->remote->sw);  in tb_handle_hotplug()
300 		} else if (port->remote->sw->config.depth > 1) {  in tb_handle_hotplug()
301 			tb_sw_warn(port->remote->sw,  in tb_handle_hotplug()
304 			tb_sw_info(port->remote->sw,  in tb_handle_hotplug()
311 	tb_switch_put(sw);  in tb_handle_hotplug()