Lines Matching refs:path
37 struct tb_path *path = kzalloc(sizeof(*path), GFP_KERNEL); in tb_path_alloc() local
38 if (!path) in tb_path_alloc()
40 path->hops = kcalloc(num_hops, sizeof(*path->hops), GFP_KERNEL); in tb_path_alloc()
41 if (!path->hops) { in tb_path_alloc()
42 kfree(path); in tb_path_alloc()
45 path->tb = tb; in tb_path_alloc()
46 path->path_length = num_hops; in tb_path_alloc()
47 return path; in tb_path_alloc()
53 void tb_path_free(struct tb_path *path) in tb_path_free() argument
55 if (path->activated) { in tb_path_free()
56 tb_WARN(path->tb, "trying to free an activated path\n") in tb_path_free()
59 kfree(path->hops); in tb_path_free()
60 kfree(path); in tb_path_free()
63 static void __tb_path_deallocate_nfc(struct tb_path *path, int first_hop) in __tb_path_deallocate_nfc() argument
66 for (i = first_hop; i < path->path_length; i++) { in __tb_path_deallocate_nfc()
67 res = tb_port_add_nfc_credits(path->hops[i].in_port, in __tb_path_deallocate_nfc()
68 -path->nfc_credits); in __tb_path_deallocate_nfc()
70 tb_port_warn(path->hops[i].in_port, in __tb_path_deallocate_nfc()
76 static void __tb_path_deactivate_hops(struct tb_path *path, int first_hop) in __tb_path_deactivate_hops() argument
80 for (i = first_hop; i < path->path_length; i++) { in __tb_path_deactivate_hops()
81 res = tb_port_write(path->hops[i].in_port, &hop, TB_CFG_HOPS, in __tb_path_deactivate_hops()
82 2 * path->hops[i].in_hop_index, 2); in __tb_path_deactivate_hops()
84 tb_port_warn(path->hops[i].in_port, in __tb_path_deactivate_hops()
86 i, path->hops[i].in_hop_index); in __tb_path_deactivate_hops()
90 void tb_path_deactivate(struct tb_path *path) in tb_path_deactivate() argument
92 if (!path->activated) { in tb_path_deactivate()
93 tb_WARN(path->tb, "trying to deactivate an inactive path\n"); in tb_path_deactivate()
96 tb_info(path->tb, in tb_path_deactivate()
98 tb_route(path->hops[0].in_port->sw), in tb_path_deactivate()
99 path->hops[0].in_port->port, in tb_path_deactivate()
100 tb_route(path->hops[path->path_length - 1].out_port->sw), in tb_path_deactivate()
101 path->hops[path->path_length - 1].out_port->port); in tb_path_deactivate()
102 __tb_path_deactivate_hops(path, 0); in tb_path_deactivate()
103 __tb_path_deallocate_nfc(path, 0); in tb_path_deactivate()
104 path->activated = false; in tb_path_deactivate()
115 int tb_path_activate(struct tb_path *path) in tb_path_activate() argument
119 if (path->activated) { in tb_path_activate()
120 tb_WARN(path->tb, "trying to activate already activated path\n"); in tb_path_activate()
124 tb_info(path->tb, in tb_path_activate()
126 tb_route(path->hops[0].in_port->sw), in tb_path_activate()
127 path->hops[0].in_port->port, in tb_path_activate()
128 tb_route(path->hops[path->path_length - 1].out_port->sw), in tb_path_activate()
129 path->hops[path->path_length - 1].out_port->port); in tb_path_activate()
132 for (i = path->path_length - 1; i >= 0; i--) { in tb_path_activate()
133 if (path->hops[i].in_counter_index == -1) in tb_path_activate()
135 res = tb_port_clear_counter(path->hops[i].in_port, in tb_path_activate()
136 path->hops[i].in_counter_index); in tb_path_activate()
142 for (i = path->path_length - 1; i >= 0; i--) { in tb_path_activate()
143 res = tb_port_add_nfc_credits(path->hops[i].in_port, in tb_path_activate()
144 path->nfc_credits); in tb_path_activate()
146 __tb_path_deallocate_nfc(path, i); in tb_path_activate()
152 for (i = path->path_length - 1; i >= 0; i--) { in tb_path_activate()
166 res = tb_port_write(path->hops[i].in_port, &hop, TB_CFG_HOPS, in tb_path_activate()
167 2 * path->hops[i].in_hop_index, 2); in tb_path_activate()
169 __tb_path_deactivate_hops(path, i); in tb_path_activate()
170 __tb_path_deallocate_nfc(path, 0); in tb_path_activate()
175 hop.next_hop = path->hops[i].next_hop_index; in tb_path_activate()
176 hop.out_port = path->hops[i].out_port->port; in tb_path_activate()
178 hop.initial_credits = (i == path->path_length - 1) ? 16 : 7; in tb_path_activate()
183 out_mask = (i == path->path_length - 1) ? in tb_path_activate()
186 hop.weight = path->weight; in tb_path_activate()
188 hop.priority = path->priority; in tb_path_activate()
189 hop.drop_packages = path->drop_packages; in tb_path_activate()
190 hop.counter = path->hops[i].in_counter_index; in tb_path_activate()
191 hop.counter_enable = path->hops[i].in_counter_index != -1; in tb_path_activate()
192 hop.ingress_fc = path->ingress_fc_enable & in_mask; in tb_path_activate()
193 hop.egress_fc = path->egress_fc_enable & out_mask; in tb_path_activate()
194 hop.ingress_shared_buffer = path->ingress_shared_buffer in tb_path_activate()
196 hop.egress_shared_buffer = path->egress_shared_buffer in tb_path_activate()
200 tb_port_info(path->hops[i].in_port, "Writing hop %d, index %d", in tb_path_activate()
201 i, path->hops[i].in_hop_index); in tb_path_activate()
202 tb_dump_hop(path->hops[i].in_port, &hop); in tb_path_activate()
203 res = tb_port_write(path->hops[i].in_port, &hop, TB_CFG_HOPS, in tb_path_activate()
204 2 * path->hops[i].in_hop_index, 2); in tb_path_activate()
206 __tb_path_deactivate_hops(path, i); in tb_path_activate()
207 __tb_path_deallocate_nfc(path, 0); in tb_path_activate()
211 path->activated = true; in tb_path_activate()
212 tb_info(path->tb, "path activation complete\n"); in tb_path_activate()
215 tb_WARN(path->tb, "path activation failed\n"); in tb_path_activate()
224 bool tb_path_is_invalid(struct tb_path *path) in tb_path_is_invalid() argument
227 for (i = 0; i < path->path_length; i++) { in tb_path_is_invalid()
228 if (path->hops[i].in_port->sw->is_unplugged) in tb_path_is_invalid()
230 if (path->hops[i].out_port->sw->is_unplugged) in tb_path_is_invalid()