Lines Matching refs:path
106 struct tb_path *path; in tb_path_discover() local
151 path = kzalloc(sizeof(*path), GFP_KERNEL); in tb_path_discover()
152 if (!path) in tb_path_discover()
155 path->name = name; in tb_path_discover()
156 path->tb = src->sw->tb; in tb_path_discover()
157 path->path_length = num_hops; in tb_path_discover()
158 path->activated = true; in tb_path_discover()
160 path->hops = kcalloc(num_hops, sizeof(*path->hops), GFP_KERNEL); in tb_path_discover()
161 if (!path->hops) { in tb_path_discover()
162 kfree(path); in tb_path_discover()
191 path->hops[i].in_port = p; in tb_path_discover()
192 path->hops[i].in_hop_index = h; in tb_path_discover()
193 path->hops[i].in_counter_index = -1; in tb_path_discover()
194 path->hops[i].out_port = out_port; in tb_path_discover()
195 path->hops[i].next_hop_index = next_hop; in tb_path_discover()
201 return path; in tb_path_discover()
206 tb_path_free(path); in tb_path_discover()
234 struct tb_path *path; in tb_path_alloc() local
238 path = kzalloc(sizeof(*path), GFP_KERNEL); in tb_path_alloc()
239 if (!path) in tb_path_alloc()
253 kfree(path); in tb_path_alloc()
260 path->hops = kcalloc(num_hops, sizeof(*path->hops), GFP_KERNEL); in tb_path_alloc()
261 if (!path->hops) { in tb_path_alloc()
262 kfree(path); in tb_path_alloc()
320 path->hops[i].in_hop_index = in_hopid; in tb_path_alloc()
321 path->hops[i].in_port = in_port; in tb_path_alloc()
322 path->hops[i].in_counter_index = -1; in tb_path_alloc()
323 path->hops[i].out_port = out_port; in tb_path_alloc()
324 path->hops[i].next_hop_index = out_hopid; in tb_path_alloc()
329 path->tb = tb; in tb_path_alloc()
330 path->path_length = num_hops; in tb_path_alloc()
331 path->name = name; in tb_path_alloc()
333 return path; in tb_path_alloc()
336 tb_path_free(path); in tb_path_alloc()
346 void tb_path_free(struct tb_path *path) in tb_path_free() argument
350 for (i = 0; i < path->path_length; i++) { in tb_path_free()
351 const struct tb_path_hop *hop = &path->hops[i]; in tb_path_free()
361 kfree(path->hops); in tb_path_free()
362 kfree(path); in tb_path_free()
365 static void __tb_path_deallocate_nfc(struct tb_path *path, int first_hop) in __tb_path_deallocate_nfc() argument
368 for (i = first_hop; i < path->path_length; i++) { in __tb_path_deallocate_nfc()
369 res = tb_port_add_nfc_credits(path->hops[i].in_port, in __tb_path_deallocate_nfc()
370 -path->hops[i].nfc_credits); in __tb_path_deallocate_nfc()
372 tb_port_warn(path->hops[i].in_port, in __tb_path_deallocate_nfc()
435 static void __tb_path_deactivate_hops(struct tb_path *path, int first_hop) in __tb_path_deactivate_hops() argument
439 for (i = first_hop; i < path->path_length; i++) { in __tb_path_deactivate_hops()
440 res = __tb_path_deactivate_hop(path->hops[i].in_port, in __tb_path_deactivate_hops()
441 path->hops[i].in_hop_index, in __tb_path_deactivate_hops()
442 path->clear_fc); in __tb_path_deactivate_hops()
444 tb_port_warn(path->hops[i].in_port, in __tb_path_deactivate_hops()
446 i, path->hops[i].in_hop_index); in __tb_path_deactivate_hops()
450 void tb_path_deactivate(struct tb_path *path) in tb_path_deactivate() argument
452 if (!path->activated) { in tb_path_deactivate()
453 tb_WARN(path->tb, "trying to deactivate an inactive path\n"); in tb_path_deactivate()
456 tb_dbg(path->tb, in tb_path_deactivate()
458 path->name, tb_route(path->hops[0].in_port->sw), in tb_path_deactivate()
459 path->hops[0].in_port->port, in tb_path_deactivate()
460 tb_route(path->hops[path->path_length - 1].out_port->sw), in tb_path_deactivate()
461 path->hops[path->path_length - 1].out_port->port); in tb_path_deactivate()
462 __tb_path_deactivate_hops(path, 0); in tb_path_deactivate()
463 __tb_path_deallocate_nfc(path, 0); in tb_path_deactivate()
464 path->activated = false; in tb_path_deactivate()
476 int tb_path_activate(struct tb_path *path) in tb_path_activate() argument
480 if (path->activated) { in tb_path_activate()
481 tb_WARN(path->tb, "trying to activate already activated path\n"); in tb_path_activate()
485 tb_dbg(path->tb, in tb_path_activate()
487 path->name, tb_route(path->hops[0].in_port->sw), in tb_path_activate()
488 path->hops[0].in_port->port, in tb_path_activate()
489 tb_route(path->hops[path->path_length - 1].out_port->sw), in tb_path_activate()
490 path->hops[path->path_length - 1].out_port->port); in tb_path_activate()
493 for (i = path->path_length - 1; i >= 0; i--) { in tb_path_activate()
494 if (path->hops[i].in_counter_index == -1) in tb_path_activate()
496 res = tb_port_clear_counter(path->hops[i].in_port, in tb_path_activate()
497 path->hops[i].in_counter_index); in tb_path_activate()
503 for (i = path->path_length - 1; i >= 0; i--) { in tb_path_activate()
504 res = tb_port_add_nfc_credits(path->hops[i].in_port, in tb_path_activate()
505 path->hops[i].nfc_credits); in tb_path_activate()
507 __tb_path_deallocate_nfc(path, i); in tb_path_activate()
513 for (i = path->path_length - 1; i >= 0; i--) { in tb_path_activate()
517 __tb_path_deactivate_hop(path->hops[i].in_port, in tb_path_activate()
518 path->hops[i].in_hop_index, path->clear_fc); in tb_path_activate()
521 hop.next_hop = path->hops[i].next_hop_index; in tb_path_activate()
522 hop.out_port = path->hops[i].out_port->port; in tb_path_activate()
523 hop.initial_credits = path->hops[i].initial_credits; in tb_path_activate()
528 out_mask = (i == path->path_length - 1) ? in tb_path_activate()
531 hop.weight = path->weight; in tb_path_activate()
533 hop.priority = path->priority; in tb_path_activate()
534 hop.drop_packages = path->drop_packages; in tb_path_activate()
535 hop.counter = path->hops[i].in_counter_index; in tb_path_activate()
536 hop.counter_enable = path->hops[i].in_counter_index != -1; in tb_path_activate()
537 hop.ingress_fc = path->ingress_fc_enable & in_mask; in tb_path_activate()
538 hop.egress_fc = path->egress_fc_enable & out_mask; in tb_path_activate()
539 hop.ingress_shared_buffer = path->ingress_shared_buffer in tb_path_activate()
541 hop.egress_shared_buffer = path->egress_shared_buffer in tb_path_activate()
545 tb_port_dbg(path->hops[i].in_port, "Writing hop %d\n", i); in tb_path_activate()
546 tb_dump_hop(&path->hops[i], &hop); in tb_path_activate()
547 res = tb_port_write(path->hops[i].in_port, &hop, TB_CFG_HOPS, in tb_path_activate()
548 2 * path->hops[i].in_hop_index, 2); in tb_path_activate()
550 __tb_path_deactivate_hops(path, i); in tb_path_activate()
551 __tb_path_deallocate_nfc(path, 0); in tb_path_activate()
555 path->activated = true; in tb_path_activate()
556 tb_dbg(path->tb, "path activation complete\n"); in tb_path_activate()
559 tb_WARN(path->tb, "path activation failed\n"); in tb_path_activate()
569 bool tb_path_is_invalid(struct tb_path *path) in tb_path_is_invalid() argument
572 for (i = 0; i < path->path_length; i++) { in tb_path_is_invalid()
573 if (path->hops[i].in_port->sw->is_unplugged) in tb_path_is_invalid()
575 if (path->hops[i].out_port->sw->is_unplugged) in tb_path_is_invalid()
589 bool tb_path_port_on_path(const struct tb_path *path, const struct tb_port *port) in tb_path_port_on_path() argument
593 for (i = 0; i < path->path_length; i++) { in tb_path_port_on_path()
594 if (path->hops[i].in_port == port || in tb_path_port_on_path()
595 path->hops[i].out_port == port) in tb_path_port_on_path()