13 #define __TB_TUNNEL_PRINT(level, tunnel, fmt, arg...)                   \  argument
15 		struct tb_pci_tunnel *__tunnel = (tunnel);              \
24 #define tb_tunnel_WARN(tunnel, fmt, arg...) \  argument
25 	__TB_TUNNEL_PRINT(tb_WARN, tunnel, fmt, ##arg)
26 #define tb_tunnel_warn(tunnel, fmt, arg...) \  argument
27 	__TB_TUNNEL_PRINT(tb_warn, tunnel, fmt, ##arg)
28 #define tb_tunnel_info(tunnel, fmt, arg...) \  argument
29 	__TB_TUNNEL_PRINT(tb_info, tunnel, fmt, ##arg)
61 	struct tb_pci_tunnel *tunnel = kzalloc(sizeof(*tunnel), GFP_KERNEL);  in tb_pci_alloc()  local
62 	if (!tunnel)  in tb_pci_alloc()
64 	tunnel->tb = tb;  in tb_pci_alloc()
65 	tunnel->down_port = down;  in tb_pci_alloc()
66 	tunnel->up_port = up;  in tb_pci_alloc()
67 	INIT_LIST_HEAD(&tunnel->list);  in tb_pci_alloc()
68 	tunnel->path_to_up = tb_path_alloc(up->sw->tb, 2);  in tb_pci_alloc()
69 	if (!tunnel->path_to_up)  in tb_pci_alloc()
71 	tunnel->path_to_down = tb_path_alloc(up->sw->tb, 2);  in tb_pci_alloc()
72 	if (!tunnel->path_to_down)  in tb_pci_alloc()
74 	tb_pci_init_path(tunnel->path_to_up);  in tb_pci_alloc()
75 	tb_pci_init_path(tunnel->path_to_down);  in tb_pci_alloc()
77 	tunnel->path_to_up->hops[0].in_port = down;  in tb_pci_alloc()
78 	tunnel->path_to_up->hops[0].in_hop_index = 8;  in tb_pci_alloc()
79 	tunnel->path_to_up->hops[0].in_counter_index = -1;  in tb_pci_alloc()
80 	tunnel->path_to_up->hops[0].out_port = tb_upstream_port(up->sw)->remote;  in tb_pci_alloc()
81 	tunnel->path_to_up->hops[0].next_hop_index = 8;  in tb_pci_alloc()
83 	tunnel->path_to_up->hops[1].in_port = tb_upstream_port(up->sw);  in tb_pci_alloc()
84 	tunnel->path_to_up->hops[1].in_hop_index = 8;  in tb_pci_alloc()
85 	tunnel->path_to_up->hops[1].in_counter_index = -1;  in tb_pci_alloc()
86 	tunnel->path_to_up->hops[1].out_port = up;  in tb_pci_alloc()
87 	tunnel->path_to_up->hops[1].next_hop_index = 8;  in tb_pci_alloc()
89 	tunnel->path_to_down->hops[0].in_port = up;  in tb_pci_alloc()
90 	tunnel->path_to_down->hops[0].in_hop_index = 8;  in tb_pci_alloc()
91 	tunnel->path_to_down->hops[0].in_counter_index = -1;  in tb_pci_alloc()
92 	tunnel->path_to_down->hops[0].out_port = tb_upstream_port(up->sw);  in tb_pci_alloc()
93 	tunnel->path_to_down->hops[0].next_hop_index = 8;  in tb_pci_alloc()
95 	tunnel->path_to_down->hops[1].in_port =  in tb_pci_alloc()
97 	tunnel->path_to_down->hops[1].in_hop_index = 8;  in tb_pci_alloc()
98 	tunnel->path_to_down->hops[1].in_counter_index = -1;  in tb_pci_alloc()
99 	tunnel->path_to_down->hops[1].out_port = down;  in tb_pci_alloc()
100 	tunnel->path_to_down->hops[1].next_hop_index = 8;  in tb_pci_alloc()
101 	return tunnel;  in tb_pci_alloc()
104 	if (tunnel) {  in tb_pci_alloc()
105 		if (tunnel->path_to_down)  in tb_pci_alloc()
106 			tb_path_free(tunnel->path_to_down);  in tb_pci_alloc()
107 		if (tunnel->path_to_up)  in tb_pci_alloc()
108 			tb_path_free(tunnel->path_to_up);  in tb_pci_alloc()
109 		kfree(tunnel);  in tb_pci_alloc()
119 void tb_pci_free(struct tb_pci_tunnel *tunnel)  in tb_pci_free()  argument
121 	if (tunnel->path_to_up->activated || tunnel->path_to_down->activated) {  in tb_pci_free()
122 		tb_tunnel_WARN(tunnel, "trying to free an activated tunnel\n");  in tb_pci_free()
125 	tb_path_free(tunnel->path_to_up);  in tb_pci_free()
126 	tb_path_free(tunnel->path_to_down);  in tb_pci_free()
127 	kfree(tunnel);  in tb_pci_free()
133 bool tb_pci_is_invalid(struct tb_pci_tunnel *tunnel)  in tb_pci_is_invalid()  argument
135 	WARN_ON(!tunnel->path_to_up->activated);  in tb_pci_is_invalid()
136 	WARN_ON(!tunnel->path_to_down->activated);  in tb_pci_is_invalid()
138 	return tb_path_is_invalid(tunnel->path_to_up)  in tb_pci_is_invalid()
139 	       || tb_path_is_invalid(tunnel->path_to_down);  in tb_pci_is_invalid()
161 int tb_pci_restart(struct tb_pci_tunnel *tunnel)  in tb_pci_restart()  argument
164 	tunnel->path_to_up->activated = false;  in tb_pci_restart()
165 	tunnel->path_to_down->activated = false;  in tb_pci_restart()
167 	tb_tunnel_info(tunnel, "activating\n");  in tb_pci_restart()
169 	res = tb_path_activate(tunnel->path_to_up);  in tb_pci_restart()
172 	res = tb_path_activate(tunnel->path_to_down);  in tb_pci_restart()
176 	res = tb_pci_port_active(tunnel->down_port, true);  in tb_pci_restart()
180 	res = tb_pci_port_active(tunnel->up_port, true);  in tb_pci_restart()
185 	tb_tunnel_warn(tunnel, "activation failed\n");  in tb_pci_restart()
186 	tb_pci_deactivate(tunnel);  in tb_pci_restart()
195 int tb_pci_activate(struct tb_pci_tunnel *tunnel)  in tb_pci_activate()  argument
198 	if (tunnel->path_to_up->activated || tunnel->path_to_down->activated) {  in tb_pci_activate()
199 		tb_tunnel_WARN(tunnel,  in tb_pci_activate()
204 	res = tb_pci_restart(tunnel);  in tb_pci_activate()
208 	list_add(&tunnel->list, &tunnel->tb->tunnel_list);  in tb_pci_activate()
217 void tb_pci_deactivate(struct tb_pci_tunnel *tunnel)  in tb_pci_deactivate()  argument
219 	tb_tunnel_info(tunnel, "deactivating\n");  in tb_pci_deactivate()
224 	tb_pci_port_active(tunnel->up_port, false);  in tb_pci_deactivate()
225 	tb_pci_port_active(tunnel->down_port, false);  in tb_pci_deactivate()
226 	if (tunnel->path_to_down->activated)  in tb_pci_deactivate()
227 		tb_path_deactivate(tunnel->path_to_down);  in tb_pci_deactivate()
228 	if (tunnel->path_to_up->activated)  in tb_pci_deactivate()
229 		tb_path_deactivate(tunnel->path_to_up);  in tb_pci_deactivate()
230 	list_del_init(&tunnel->list);  in tb_pci_deactivate()