29 	struct dsa_switch_tree *dst;  in dsa_tree_find()  local
31 	list_for_each_entry(dst, &dsa_tree_list, list)  in dsa_tree_find()
32 		if (dst->index == index)  in dsa_tree_find()
33 			return dst;  in dsa_tree_find()
40 	struct dsa_switch_tree *dst;  in dsa_tree_alloc()  local
42 	dst = kzalloc(sizeof(*dst), GFP_KERNEL);  in dsa_tree_alloc()
43 	if (!dst)  in dsa_tree_alloc()
46 	dst->index = index;  in dsa_tree_alloc()
48 	INIT_LIST_HEAD(&dst->list);  in dsa_tree_alloc()
49 	list_add_tail(&dst->list, &dsa_tree_list);  in dsa_tree_alloc()
51 	kref_init(&dst->refcount);  in dsa_tree_alloc()
53 	return dst;  in dsa_tree_alloc()
56 static void dsa_tree_free(struct dsa_switch_tree *dst)  in dsa_tree_free()  argument
58 	list_del(&dst->list);  in dsa_tree_free()
59 	kfree(dst);  in dsa_tree_free()
62 static struct dsa_switch_tree *dsa_tree_get(struct dsa_switch_tree *dst)  in dsa_tree_get()  argument
64 	if (dst)  in dsa_tree_get()
65 		kref_get(&dst->refcount);  in dsa_tree_get()
67 	return dst;  in dsa_tree_get()
72 	struct dsa_switch_tree *dst;  in dsa_tree_touch()  local
74 	dst = dsa_tree_find(index);  in dsa_tree_touch()
75 	if (dst)  in dsa_tree_touch()
76 		return dsa_tree_get(dst);  in dsa_tree_touch()
83 	struct dsa_switch_tree *dst;  in dsa_tree_release()  local
85 	dst = container_of(ref, struct dsa_switch_tree, refcount);  in dsa_tree_release()
87 	dsa_tree_free(dst);  in dsa_tree_release()
90 static void dsa_tree_put(struct dsa_switch_tree *dst)  in dsa_tree_put()  argument
92 	if (dst)  in dsa_tree_put()
93 		kref_put(&dst->refcount, dsa_tree_release);  in dsa_tree_put()
111 static struct dsa_port *dsa_tree_find_port_by_node(struct dsa_switch_tree *dst,  in dsa_tree_find_port_by_node()  argument
119 		ds = dst->ds[device];  in dsa_tree_find_port_by_node()
137 	struct dsa_switch_tree *dst = ds->dst;  in dsa_port_setup_routing_table()  local
144 		link_dp = dsa_tree_find_port_by_node(dst, it.node);  in dsa_port_setup_routing_table()
178 static bool dsa_tree_setup_routing_table(struct dsa_switch_tree *dst)  in dsa_tree_setup_routing_table()  argument
185 		ds = dst->ds[device];  in dsa_tree_setup_routing_table()
197 static struct dsa_port *dsa_tree_find_first_cpu(struct dsa_switch_tree *dst)  in dsa_tree_find_first_cpu()  argument
204 		ds = dst->ds[device];  in dsa_tree_find_first_cpu()
219 static int dsa_tree_setup_default_cpu(struct dsa_switch_tree *dst)  in dsa_tree_setup_default_cpu()  argument
226 	dst->cpu_dp = dsa_tree_find_first_cpu(dst);  in dsa_tree_setup_default_cpu()
227 	if (!dst->cpu_dp) {  in dsa_tree_setup_default_cpu()
234 		ds = dst->ds[device];  in dsa_tree_setup_default_cpu()
242 				dp->cpu_dp = dst->cpu_dp;  in dsa_tree_setup_default_cpu()
249 static void dsa_tree_teardown_default_cpu(struct dsa_switch_tree *dst)  in dsa_tree_teardown_default_cpu()  argument
252 	dst->cpu_dp = NULL;  in dsa_tree_teardown_default_cpu()
258 	struct dsa_switch_tree *dst = ds->dst;  in dsa_port_setup()  local
259 	const unsigned char *id = (const unsigned char *)&dst->index;  in dsa_port_setup()
260 	const unsigned char len = sizeof(dst->index);  in dsa_port_setup()
443 static int dsa_tree_setup_switches(struct dsa_switch_tree *dst)  in dsa_tree_setup_switches()  argument
451 		ds = dst->ds[device];  in dsa_tree_setup_switches()
478 		ds = dst->ds[i];  in dsa_tree_setup_switches()
494 static void dsa_tree_teardown_switches(struct dsa_switch_tree *dst)  in dsa_tree_teardown_switches()  argument
501 		ds = dst->ds[device];  in dsa_tree_teardown_switches()
515 static int dsa_tree_setup_master(struct dsa_switch_tree *dst)  in dsa_tree_setup_master()  argument
517 	struct dsa_port *cpu_dp = dst->cpu_dp;  in dsa_tree_setup_master()
524 static void dsa_tree_teardown_master(struct dsa_switch_tree *dst)  in dsa_tree_teardown_master()  argument
526 	struct dsa_port *cpu_dp = dst->cpu_dp;  in dsa_tree_teardown_master()
532 static int dsa_tree_setup(struct dsa_switch_tree *dst)  in dsa_tree_setup()  argument
537 	if (dst->setup) {  in dsa_tree_setup()
539 		       dst->index);  in dsa_tree_setup()
543 	complete = dsa_tree_setup_routing_table(dst);  in dsa_tree_setup()
547 	err = dsa_tree_setup_default_cpu(dst);  in dsa_tree_setup()
551 	err = dsa_tree_setup_switches(dst);  in dsa_tree_setup()
555 	err = dsa_tree_setup_master(dst);  in dsa_tree_setup()
559 	dst->setup = true;  in dsa_tree_setup()
561 	pr_info("DSA: tree %d setup\n", dst->index);  in dsa_tree_setup()
566 	dsa_tree_teardown_switches(dst);  in dsa_tree_setup()
568 	dsa_tree_teardown_default_cpu(dst);  in dsa_tree_setup()
573 static void dsa_tree_teardown(struct dsa_switch_tree *dst)  in dsa_tree_teardown()  argument
575 	if (!dst->setup)  in dsa_tree_teardown()
578 	dsa_tree_teardown_master(dst);  in dsa_tree_teardown()
580 	dsa_tree_teardown_switches(dst);  in dsa_tree_teardown()
582 	dsa_tree_teardown_default_cpu(dst);  in dsa_tree_teardown()
584 	pr_info("DSA: tree %d torn down\n", dst->index);  in dsa_tree_teardown()
586 	dst->setup = false;  in dsa_tree_teardown()
589 static void dsa_tree_remove_switch(struct dsa_switch_tree *dst,  in dsa_tree_remove_switch()  argument
592 	dsa_tree_teardown(dst);  in dsa_tree_remove_switch()
594 	dst->ds[index] = NULL;  in dsa_tree_remove_switch()
595 	dsa_tree_put(dst);  in dsa_tree_remove_switch()
598 static int dsa_tree_add_switch(struct dsa_switch_tree *dst,  in dsa_tree_add_switch()  argument
604 	if (dst->ds[index])  in dsa_tree_add_switch()
607 	dsa_tree_get(dst);  in dsa_tree_add_switch()
608 	dst->ds[index] = ds;  in dsa_tree_add_switch()
610 	err = dsa_tree_setup(dst);  in dsa_tree_add_switch()
612 		dst->ds[index] = NULL;  in dsa_tree_add_switch()
613 		dsa_tree_put(dst);  in dsa_tree_add_switch()
640 	struct dsa_switch_tree *dst = ds->dst;  in dsa_port_parse_cpu()  local
658 	dp->dst = dst;  in dsa_port_parse_cpu()
738 	ds->dst = dsa_tree_touch(m[0]);  in dsa_switch_parse_member_of()
739 	if (!ds->dst)  in dsa_switch_parse_member_of()
816 	ds->dst = dsa_tree_touch(0);  in dsa_switch_parse()
817 	if (!ds->dst)  in dsa_switch_parse()
825 	struct dsa_switch_tree *dst = ds->dst;  in dsa_switch_add()  local
827 	return dsa_tree_add_switch(dst, ds);  in dsa_switch_add()
876 	dsa_tree_put(ds->dst);  in dsa_register_switch()
885 	struct dsa_switch_tree *dst = ds->dst;  in dsa_switch_remove()  local
888 	dsa_tree_remove_switch(dst, index);  in dsa_switch_remove()