32 	struct dsa_switch_tree *dst;  in dsa_tree_find()  local
34 	list_for_each_entry(dst, &dsa_tree_list, list)  in dsa_tree_find()
35 		if (dst->index == index)  in dsa_tree_find()
36 			return dst;  in dsa_tree_find()
43 	struct dsa_switch_tree *dst;  in dsa_tree_alloc()  local
45 	dst = kzalloc(sizeof(*dst), GFP_KERNEL);  in dsa_tree_alloc()
46 	if (!dst)  in dsa_tree_alloc()
49 	dst->index = index;  in dsa_tree_alloc()
51 	INIT_LIST_HEAD(&dst->list);  in dsa_tree_alloc()
52 	list_add_tail(&dsa_tree_list, &dst->list);  in dsa_tree_alloc()
54 	kref_init(&dst->refcount);  in dsa_tree_alloc()
56 	return dst;  in dsa_tree_alloc()
59 static void dsa_tree_free(struct dsa_switch_tree *dst)  in dsa_tree_free()  argument
61 	list_del(&dst->list);  in dsa_tree_free()
62 	kfree(dst);  in dsa_tree_free()
65 static struct dsa_switch_tree *dsa_tree_get(struct dsa_switch_tree *dst)  in dsa_tree_get()  argument
67 	if (dst)  in dsa_tree_get()
68 		kref_get(&dst->refcount);  in dsa_tree_get()
70 	return dst;  in dsa_tree_get()
75 	struct dsa_switch_tree *dst;  in dsa_tree_touch()  local
77 	dst = dsa_tree_find(index);  in dsa_tree_touch()
78 	if (dst)  in dsa_tree_touch()
79 		return dsa_tree_get(dst);  in dsa_tree_touch()
86 	struct dsa_switch_tree *dst;  in dsa_tree_release()  local
88 	dst = container_of(ref, struct dsa_switch_tree, refcount);  in dsa_tree_release()
90 	dsa_tree_free(dst);  in dsa_tree_release()
93 static void dsa_tree_put(struct dsa_switch_tree *dst)  in dsa_tree_put()  argument
95 	if (dst)  in dsa_tree_put()
96 		kref_put(&dst->refcount, dsa_tree_release);  in dsa_tree_put()
114 static struct dsa_port *dsa_tree_find_port_by_node(struct dsa_switch_tree *dst,  in dsa_tree_find_port_by_node()  argument
122 		ds = dst->ds[device];  in dsa_tree_find_port_by_node()
140 	struct dsa_switch_tree *dst = ds->dst;  in dsa_port_setup_routing_table()  local
147 		link_dp = dsa_tree_find_port_by_node(dst, it.node);  in dsa_port_setup_routing_table()
181 static bool dsa_tree_setup_routing_table(struct dsa_switch_tree *dst)  in dsa_tree_setup_routing_table()  argument
188 		ds = dst->ds[device];  in dsa_tree_setup_routing_table()
200 static struct dsa_port *dsa_tree_find_first_cpu(struct dsa_switch_tree *dst)  in dsa_tree_find_first_cpu()  argument
207 		ds = dst->ds[device];  in dsa_tree_find_first_cpu()
222 static int dsa_tree_setup_default_cpu(struct dsa_switch_tree *dst)  in dsa_tree_setup_default_cpu()  argument
229 	dst->cpu_dp = dsa_tree_find_first_cpu(dst);  in dsa_tree_setup_default_cpu()
230 	if (!dst->cpu_dp) {  in dsa_tree_setup_default_cpu()
237 		ds = dst->ds[device];  in dsa_tree_setup_default_cpu()
245 				dp->cpu_dp = dst->cpu_dp;  in dsa_tree_setup_default_cpu()
252 static void dsa_tree_teardown_default_cpu(struct dsa_switch_tree *dst)  in dsa_tree_teardown_default_cpu()  argument
255 	dst->cpu_dp = NULL;  in dsa_tree_teardown_default_cpu()
401 static int dsa_tree_setup_switches(struct dsa_switch_tree *dst)  in dsa_tree_setup_switches()  argument
409 		ds = dst->ds[device];  in dsa_tree_setup_switches()
429 static void dsa_tree_teardown_switches(struct dsa_switch_tree *dst)  in dsa_tree_teardown_switches()  argument
436 		ds = dst->ds[device];  in dsa_tree_teardown_switches()
450 static int dsa_tree_setup_master(struct dsa_switch_tree *dst)  in dsa_tree_setup_master()  argument
452 	struct dsa_port *cpu_dp = dst->cpu_dp;  in dsa_tree_setup_master()
459 static void dsa_tree_teardown_master(struct dsa_switch_tree *dst)  in dsa_tree_teardown_master()  argument
461 	struct dsa_port *cpu_dp = dst->cpu_dp;  in dsa_tree_teardown_master()
467 static int dsa_tree_setup(struct dsa_switch_tree *dst)  in dsa_tree_setup()  argument
472 	if (dst->setup) {  in dsa_tree_setup()
474 		       dst->index);  in dsa_tree_setup()
478 	complete = dsa_tree_setup_routing_table(dst);  in dsa_tree_setup()
482 	err = dsa_tree_setup_default_cpu(dst);  in dsa_tree_setup()
486 	err = dsa_tree_setup_switches(dst);  in dsa_tree_setup()
490 	err = dsa_tree_setup_master(dst);  in dsa_tree_setup()
494 	dst->setup = true;  in dsa_tree_setup()
496 	pr_info("DSA: tree %d setup\n", dst->index);  in dsa_tree_setup()
501 static void dsa_tree_teardown(struct dsa_switch_tree *dst)  in dsa_tree_teardown()  argument
503 	if (!dst->setup)  in dsa_tree_teardown()
506 	dsa_tree_teardown_master(dst);  in dsa_tree_teardown()
508 	dsa_tree_teardown_switches(dst);  in dsa_tree_teardown()
510 	dsa_tree_teardown_default_cpu(dst);  in dsa_tree_teardown()
512 	pr_info("DSA: tree %d torn down\n", dst->index);  in dsa_tree_teardown()
514 	dst->setup = false;  in dsa_tree_teardown()
517 static void dsa_tree_remove_switch(struct dsa_switch_tree *dst,  in dsa_tree_remove_switch()  argument
520 	dsa_tree_teardown(dst);  in dsa_tree_remove_switch()
522 	dst->ds[index] = NULL;  in dsa_tree_remove_switch()
523 	dsa_tree_put(dst);  in dsa_tree_remove_switch()
526 static int dsa_tree_add_switch(struct dsa_switch_tree *dst,  in dsa_tree_add_switch()  argument
532 	if (dst->ds[index])  in dsa_tree_add_switch()
535 	dsa_tree_get(dst);  in dsa_tree_add_switch()
536 	dst->ds[index] = ds;  in dsa_tree_add_switch()
538 	err = dsa_tree_setup(dst);  in dsa_tree_add_switch()
540 		dsa_tree_remove_switch(dst, index);  in dsa_tree_add_switch()
566 	struct dsa_switch_tree *dst = ds->dst;  in dsa_port_parse_cpu()  local
581 	dp->dst = dst;  in dsa_port_parse_cpu()
657 	ds->dst = dsa_tree_touch(m[0]);  in dsa_switch_parse_member_of()
658 	if (!ds->dst)  in dsa_switch_parse_member_of()
735 	ds->dst = dsa_tree_touch(0);  in dsa_switch_parse()
736 	if (!ds->dst)  in dsa_switch_parse()
744 	struct dsa_switch_tree *dst = ds->dst;  in dsa_switch_add()  local
746 	return dsa_tree_add_switch(dst, ds);  in dsa_switch_add()
810 	dsa_tree_put(ds->dst);  in dsa_register_switch()
819 	struct dsa_switch_tree *dst = ds->dst;  in dsa_switch_remove()  local
822 	dsa_tree_remove_switch(dst, index);  in dsa_switch_remove()