28 	struct dsa_switch_tree *dst;  in dsa_get_dst()  local
30 	list_for_each_entry(dst, &dsa_switch_trees, list)  in dsa_get_dst()
31 		if (dst->tree == tree) {  in dsa_get_dst()
32 			kref_get(&dst->refcount);  in dsa_get_dst()
33 			return dst;  in dsa_get_dst()
40 	struct dsa_switch_tree *dst = container_of(ref, struct dsa_switch_tree,  in dsa_free_dst()  local
43 	list_del(&dst->list);  in dsa_free_dst()
44 	kfree(dst);  in dsa_free_dst()
47 static void dsa_put_dst(struct dsa_switch_tree *dst)  in dsa_put_dst()  argument
49 	kref_put(&dst->refcount, dsa_free_dst);  in dsa_put_dst()
54 	struct dsa_switch_tree *dst;  in dsa_add_dst()  local
56 	dst = kzalloc(sizeof(*dst), GFP_KERNEL);  in dsa_add_dst()
57 	if (!dst)  in dsa_add_dst()
59 	dst->tree = tree;  in dsa_add_dst()
60 	dst->cpu_switch = -1;  in dsa_add_dst()
61 	INIT_LIST_HEAD(&dst->list);  in dsa_add_dst()
62 	list_add_tail(&dsa_switch_trees, &dst->list);  in dsa_add_dst()
63 	kref_init(&dst->refcount);  in dsa_add_dst()
65 	return dst;  in dsa_add_dst()
68 static void dsa_dst_add_ds(struct dsa_switch_tree *dst,  in dsa_dst_add_ds()  argument
71 	kref_get(&dst->refcount);  in dsa_dst_add_ds()
72 	dst->ds[index] = ds;  in dsa_dst_add_ds()
75 static void dsa_dst_del_ds(struct dsa_switch_tree *dst,  in dsa_dst_del_ds()  argument
78 	dst->ds[index] = NULL;  in dsa_dst_del_ds()
79 	kref_put(&dst->refcount, dsa_free_dst);  in dsa_dst_del_ds()
121 static struct dsa_switch *dsa_dst_find_port(struct dsa_switch_tree *dst,  in dsa_dst_find_port()  argument
128 		ds = dst->ds[index];  in dsa_dst_find_port()
139 static int dsa_port_complete(struct dsa_switch_tree *dst,  in dsa_port_complete()  argument
153 		dst_ds = dsa_dst_find_port(dst, link);  in dsa_port_complete()
170 static int dsa_ds_complete(struct dsa_switch_tree *dst, struct dsa_switch *ds)  in dsa_ds_complete()  argument
184 		err = dsa_port_complete(dst, ds, port, index);  in dsa_ds_complete()
199 static int dsa_dst_complete(struct dsa_switch_tree *dst)  in dsa_dst_complete()  argument
206 		ds = dst->ds[index];  in dsa_dst_complete()
210 		err = dsa_ds_complete(dst, ds);  in dsa_dst_complete()
293 static int dsa_ds_apply(struct dsa_switch_tree *dst, struct dsa_switch *ds)  in dsa_ds_apply()  argument
311 		err = ds->ops->set_addr(ds, dst->master_netdev->dev_addr);  in dsa_ds_apply()
355 static void dsa_ds_unapply(struct dsa_switch_tree *dst, struct dsa_switch *ds)  in dsa_ds_unapply()  argument
382 static int dsa_dst_apply(struct dsa_switch_tree *dst)  in dsa_dst_apply()  argument
389 		ds = dst->ds[index];  in dsa_dst_apply()
393 		err = dsa_ds_apply(dst, ds);  in dsa_dst_apply()
398 	if (dst->ds[0]) {  in dsa_dst_apply()
399 		err = dsa_cpu_port_ethtool_setup(dst->ds[0]);  in dsa_dst_apply()
409 	dst->master_netdev->dsa_ptr = (void *)dst;  in dsa_dst_apply()
410 	dst->applied = true;  in dsa_dst_apply()
415 static void dsa_dst_unapply(struct dsa_switch_tree *dst)  in dsa_dst_unapply()  argument
420 	if (!dst->applied)  in dsa_dst_unapply()
423 	dst->master_netdev->dsa_ptr = NULL;  in dsa_dst_unapply()
432 		ds = dst->ds[index];  in dsa_dst_unapply()
436 		dsa_ds_unapply(dst, ds);  in dsa_dst_unapply()
439 	if (dst->ds[0])  in dsa_dst_unapply()
440 		dsa_cpu_port_ethtool_restore(dst->ds[0]);  in dsa_dst_unapply()
442 	pr_info("DSA: tree %d unapplied\n", dst->tree);  in dsa_dst_unapply()
443 	dst->applied = false;  in dsa_dst_unapply()
447 			 struct dsa_switch_tree *dst,  in dsa_cpu_parse()  argument
465 	if (!dst->master_netdev)  in dsa_cpu_parse()
466 		dst->master_netdev = ethernet_dev;  in dsa_cpu_parse()
468 	if (dst->cpu_switch == -1) {  in dsa_cpu_parse()
469 		dst->cpu_switch = ds->index;  in dsa_cpu_parse()
470 		dst->cpu_port = index;  in dsa_cpu_parse()
474 	dst->tag_ops = dsa_resolve_tag_protocol(tag_protocol);  in dsa_cpu_parse()
475 	if (IS_ERR(dst->tag_ops)) {  in dsa_cpu_parse()
477 		return PTR_ERR(dst->tag_ops);  in dsa_cpu_parse()
480 	dst->rcv = dst->tag_ops->rcv;  in dsa_cpu_parse()
485 static int dsa_ds_parse(struct dsa_switch_tree *dst, struct dsa_switch *ds)  in dsa_ds_parse()  argument
497 			err = dsa_cpu_parse(port, index, dst, ds);  in dsa_ds_parse()
503 	pr_info("DSA: switch %d %d parsed\n", dst->tree, ds->index);  in dsa_ds_parse()
508 static int dsa_dst_parse(struct dsa_switch_tree *dst)  in dsa_dst_parse()  argument
515 		ds = dst->ds[index];  in dsa_dst_parse()
519 		err = dsa_ds_parse(dst, ds);  in dsa_dst_parse()
524 	if (!dst->master_netdev) {  in dsa_dst_parse()
529 	pr_info("DSA: tree %d parsed\n", dst->tree);  in dsa_dst_parse()
602 	struct dsa_switch_tree *dst;  in _dsa_register_switch()  local
617 	dst = dsa_get_dst(tree);  in _dsa_register_switch()
618 	if (!dst) {  in _dsa_register_switch()
619 		dst = dsa_add_dst(tree);  in _dsa_register_switch()
620 		if (!dst)  in _dsa_register_switch()
624 	if (dst->ds[index]) {  in _dsa_register_switch()
629 	ds->dst = dst;  in _dsa_register_switch()
636 	dsa_dst_add_ds(dst, ds, index);  in _dsa_register_switch()
638 	err = dsa_dst_complete(dst);  in _dsa_register_switch()
648 	if (dst->applied) {  in _dsa_register_switch()
653 	err = dsa_dst_parse(dst);  in _dsa_register_switch()
657 	err = dsa_dst_apply(dst);  in _dsa_register_switch()
659 		dsa_dst_unapply(dst);  in _dsa_register_switch()
663 	dsa_put_dst(dst);  in _dsa_register_switch()
667 	dsa_dst_del_ds(dst, ds, ds->index);  in _dsa_register_switch()
669 	dsa_put_dst(dst);  in _dsa_register_switch()
688 	struct dsa_switch_tree *dst = ds->dst;  in _dsa_unregister_switch()  local
690 	dsa_dst_unapply(dst);  in _dsa_unregister_switch()
692 	dsa_dst_del_ds(dst, ds, ds->index);  in _dsa_unregister_switch()