Version:  2.0.40 2.2.26 2.4.37 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18

Linux/net/dsa/dsa.c

  1 /*
  2  * net/dsa/dsa.c - Hardware switch handling
  3  * Copyright (c) 2008-2009 Marvell Semiconductor
  4  * Copyright (c) 2013 Florian Fainelli <florian@openwrt.org>
  5  *
  6  * This program is free software; you can redistribute it and/or modify
  7  * it under the terms of the GNU General Public License as published by
  8  * the Free Software Foundation; either version 2 of the License, or
  9  * (at your option) any later version.
 10  */
 11 
 12 #include <linux/list.h>
 13 #include <linux/platform_device.h>
 14 #include <linux/slab.h>
 15 #include <linux/module.h>
 16 #include <net/dsa.h>
 17 #include <linux/of.h>
 18 #include <linux/of_mdio.h>
 19 #include <linux/of_platform.h>
 20 #include "dsa_priv.h"
 21 
 22 char dsa_driver_version[] = "0.1";
 23 
 24 
 25 /* switch driver registration ***********************************************/
 26 static DEFINE_MUTEX(dsa_switch_drivers_mutex);
 27 static LIST_HEAD(dsa_switch_drivers);
 28 
 29 void register_switch_driver(struct dsa_switch_driver *drv)
 30 {
 31         mutex_lock(&dsa_switch_drivers_mutex);
 32         list_add_tail(&drv->list, &dsa_switch_drivers);
 33         mutex_unlock(&dsa_switch_drivers_mutex);
 34 }
 35 EXPORT_SYMBOL_GPL(register_switch_driver);
 36 
 37 void unregister_switch_driver(struct dsa_switch_driver *drv)
 38 {
 39         mutex_lock(&dsa_switch_drivers_mutex);
 40         list_del_init(&drv->list);
 41         mutex_unlock(&dsa_switch_drivers_mutex);
 42 }
 43 EXPORT_SYMBOL_GPL(unregister_switch_driver);
 44 
 45 static struct dsa_switch_driver *
 46 dsa_switch_probe(struct device *host_dev, int sw_addr, char **_name)
 47 {
 48         struct dsa_switch_driver *ret;
 49         struct list_head *list;
 50         char *name;
 51 
 52         ret = NULL;
 53         name = NULL;
 54 
 55         mutex_lock(&dsa_switch_drivers_mutex);
 56         list_for_each(list, &dsa_switch_drivers) {
 57                 struct dsa_switch_driver *drv;
 58 
 59                 drv = list_entry(list, struct dsa_switch_driver, list);
 60 
 61                 name = drv->probe(host_dev, sw_addr);
 62                 if (name != NULL) {
 63                         ret = drv;
 64                         break;
 65                 }
 66         }
 67         mutex_unlock(&dsa_switch_drivers_mutex);
 68 
 69         *_name = name;
 70 
 71         return ret;
 72 }
 73 
 74 
 75 /* basic switch operations **************************************************/
 76 static struct dsa_switch *
 77 dsa_switch_setup(struct dsa_switch_tree *dst, int index,
 78                  struct device *parent, struct device *host_dev)
 79 {
 80         struct dsa_chip_data *pd = dst->pd->chip + index;
 81         struct dsa_switch_driver *drv;
 82         struct dsa_switch *ds;
 83         int ret;
 84         char *name;
 85         int i;
 86         bool valid_name_found = false;
 87 
 88         /*
 89          * Probe for switch model.
 90          */
 91         drv = dsa_switch_probe(host_dev, pd->sw_addr, &name);
 92         if (drv == NULL) {
 93                 printk(KERN_ERR "%s[%d]: could not detect attached switch\n",
 94                        dst->master_netdev->name, index);
 95                 return ERR_PTR(-EINVAL);
 96         }
 97         printk(KERN_INFO "%s[%d]: detected a %s switch\n",
 98                 dst->master_netdev->name, index, name);
 99 
100 
101         /*
102          * Allocate and initialise switch state.
103          */
104         ds = kzalloc(sizeof(*ds) + drv->priv_size, GFP_KERNEL);
105         if (ds == NULL)
106                 return ERR_PTR(-ENOMEM);
107 
108         ds->dst = dst;
109         ds->index = index;
110         ds->pd = dst->pd->chip + index;
111         ds->drv = drv;
112         ds->master_dev = host_dev;
113 
114         /*
115          * Validate supplied switch configuration.
116          */
117         for (i = 0; i < DSA_MAX_PORTS; i++) {
118                 char *name;
119 
120                 name = pd->port_names[i];
121                 if (name == NULL)
122                         continue;
123 
124                 if (!strcmp(name, "cpu")) {
125                         if (dst->cpu_switch != -1) {
126                                 printk(KERN_ERR "multiple cpu ports?!\n");
127                                 ret = -EINVAL;
128                                 goto out;
129                         }
130                         dst->cpu_switch = index;
131                         dst->cpu_port = i;
132                 } else if (!strcmp(name, "dsa")) {
133                         ds->dsa_port_mask |= 1 << i;
134                 } else {
135                         ds->phys_port_mask |= 1 << i;
136                 }
137                 valid_name_found = true;
138         }
139 
140         if (!valid_name_found && i == DSA_MAX_PORTS) {
141                 ret = -EINVAL;
142                 goto out;
143         }
144 
145         /* Make the built-in MII bus mask match the number of ports,
146          * switch drivers can override this later
147          */
148         ds->phys_mii_mask = ds->phys_port_mask;
149 
150         /*
151          * If the CPU connects to this switch, set the switch tree
152          * tagging protocol to the preferred tagging format of this
153          * switch.
154          */
155         if (dst->cpu_switch == index) {
156                 switch (drv->tag_protocol) {
157 #ifdef CONFIG_NET_DSA_TAG_DSA
158                 case DSA_TAG_PROTO_DSA:
159                         dst->rcv = dsa_netdev_ops.rcv;
160                         break;
161 #endif
162 #ifdef CONFIG_NET_DSA_TAG_EDSA
163                 case DSA_TAG_PROTO_EDSA:
164                         dst->rcv = edsa_netdev_ops.rcv;
165                         break;
166 #endif
167 #ifdef CONFIG_NET_DSA_TAG_TRAILER
168                 case DSA_TAG_PROTO_TRAILER:
169                         dst->rcv = trailer_netdev_ops.rcv;
170                         break;
171 #endif
172 #ifdef CONFIG_NET_DSA_TAG_BRCM
173                 case DSA_TAG_PROTO_BRCM:
174                         dst->rcv = brcm_netdev_ops.rcv;
175                         break;
176 #endif
177                 case DSA_TAG_PROTO_NONE:
178                         break;
179                 default:
180                         ret = -ENOPROTOOPT;
181                         goto out;
182                 }
183 
184                 dst->tag_protocol = drv->tag_protocol;
185         }
186 
187         /*
188          * Do basic register setup.
189          */
190         ret = drv->setup(ds);
191         if (ret < 0)
192                 goto out;
193 
194         ret = drv->set_addr(ds, dst->master_netdev->dev_addr);
195         if (ret < 0)
196                 goto out;
197 
198         ds->slave_mii_bus = mdiobus_alloc();
199         if (ds->slave_mii_bus == NULL) {
200                 ret = -ENOMEM;
201                 goto out;
202         }
203         dsa_slave_mii_bus_init(ds);
204 
205         ret = mdiobus_register(ds->slave_mii_bus);
206         if (ret < 0)
207                 goto out_free;
208 
209 
210         /*
211          * Create network devices for physical switch ports.
212          */
213         for (i = 0; i < DSA_MAX_PORTS; i++) {
214                 struct net_device *slave_dev;
215 
216                 if (!(ds->phys_port_mask & (1 << i)))
217                         continue;
218 
219                 slave_dev = dsa_slave_create(ds, parent, i, pd->port_names[i]);
220                 if (slave_dev == NULL) {
221                         printk(KERN_ERR "%s[%d]: can't create dsa "
222                                "slave device for port %d(%s)\n",
223                                dst->master_netdev->name,
224                                index, i, pd->port_names[i]);
225                         continue;
226                 }
227 
228                 ds->ports[i] = slave_dev;
229         }
230 
231         return ds;
232 
233 out_free:
234         mdiobus_free(ds->slave_mii_bus);
235 out:
236         kfree(ds);
237         return ERR_PTR(ret);
238 }
239 
240 static void dsa_switch_destroy(struct dsa_switch *ds)
241 {
242 }
243 
244 #ifdef CONFIG_PM_SLEEP
245 static int dsa_switch_suspend(struct dsa_switch *ds)
246 {
247         int i, ret = 0;
248 
249         /* Suspend slave network devices */
250         for (i = 0; i < DSA_MAX_PORTS; i++) {
251                 if (!(ds->phys_port_mask & (1 << i)))
252                         continue;
253 
254                 ret = dsa_slave_suspend(ds->ports[i]);
255                 if (ret)
256                         return ret;
257         }
258 
259         if (ds->drv->suspend)
260                 ret = ds->drv->suspend(ds);
261 
262         return ret;
263 }
264 
265 static int dsa_switch_resume(struct dsa_switch *ds)
266 {
267         int i, ret = 0;
268 
269         if (ds->drv->resume)
270                 ret = ds->drv->resume(ds);
271 
272         if (ret)
273                 return ret;
274 
275         /* Resume slave network devices */
276         for (i = 0; i < DSA_MAX_PORTS; i++) {
277                 if (!(ds->phys_port_mask & (1 << i)))
278                         continue;
279 
280                 ret = dsa_slave_resume(ds->ports[i]);
281                 if (ret)
282                         return ret;
283         }
284 
285         return 0;
286 }
287 #endif
288 
289 
290 /* link polling *************************************************************/
291 static void dsa_link_poll_work(struct work_struct *ugly)
292 {
293         struct dsa_switch_tree *dst;
294         int i;
295 
296         dst = container_of(ugly, struct dsa_switch_tree, link_poll_work);
297 
298         for (i = 0; i < dst->pd->nr_chips; i++) {
299                 struct dsa_switch *ds = dst->ds[i];
300 
301                 if (ds != NULL && ds->drv->poll_link != NULL)
302                         ds->drv->poll_link(ds);
303         }
304 
305         mod_timer(&dst->link_poll_timer, round_jiffies(jiffies + HZ));
306 }
307 
308 static void dsa_link_poll_timer(unsigned long _dst)
309 {
310         struct dsa_switch_tree *dst = (void *)_dst;
311 
312         schedule_work(&dst->link_poll_work);
313 }
314 
315 
316 /* platform driver init and cleanup *****************************************/
317 static int dev_is_class(struct device *dev, void *class)
318 {
319         if (dev->class != NULL && !strcmp(dev->class->name, class))
320                 return 1;
321 
322         return 0;
323 }
324 
325 static struct device *dev_find_class(struct device *parent, char *class)
326 {
327         if (dev_is_class(parent, class)) {
328                 get_device(parent);
329                 return parent;
330         }
331 
332         return device_find_child(parent, class, dev_is_class);
333 }
334 
335 struct mii_bus *dsa_host_dev_to_mii_bus(struct device *dev)
336 {
337         struct device *d;
338 
339         d = dev_find_class(dev, "mdio_bus");
340         if (d != NULL) {
341                 struct mii_bus *bus;
342 
343                 bus = to_mii_bus(d);
344                 put_device(d);
345 
346                 return bus;
347         }
348 
349         return NULL;
350 }
351 EXPORT_SYMBOL_GPL(dsa_host_dev_to_mii_bus);
352 
353 static struct net_device *dev_to_net_device(struct device *dev)
354 {
355         struct device *d;
356 
357         d = dev_find_class(dev, "net");
358         if (d != NULL) {
359                 struct net_device *nd;
360 
361                 nd = to_net_dev(d);
362                 dev_hold(nd);
363                 put_device(d);
364 
365                 return nd;
366         }
367 
368         return NULL;
369 }
370 
371 #ifdef CONFIG_OF
372 static int dsa_of_setup_routing_table(struct dsa_platform_data *pd,
373                                         struct dsa_chip_data *cd,
374                                         int chip_index,
375                                         struct device_node *link)
376 {
377         int ret;
378         const __be32 *reg;
379         int link_port_addr;
380         int link_sw_addr;
381         struct device_node *parent_sw;
382         int len;
383 
384         parent_sw = of_get_parent(link);
385         if (!parent_sw)
386                 return -EINVAL;
387 
388         reg = of_get_property(parent_sw, "reg", &len);
389         if (!reg || (len != sizeof(*reg) * 2))
390                 return -EINVAL;
391 
392         link_sw_addr = be32_to_cpup(reg + 1);
393 
394         if (link_sw_addr >= pd->nr_chips)
395                 return -EINVAL;
396 
397         /* First time routing table allocation */
398         if (!cd->rtable) {
399                 cd->rtable = kmalloc(pd->nr_chips * sizeof(s8), GFP_KERNEL);
400                 if (!cd->rtable)
401                         return -ENOMEM;
402 
403                 /* default to no valid uplink/downlink */
404                 memset(cd->rtable, -1, pd->nr_chips * sizeof(s8));
405         }
406 
407         reg = of_get_property(link, "reg", NULL);
408         if (!reg) {
409                 ret = -EINVAL;
410                 goto out;
411         }
412 
413         link_port_addr = be32_to_cpup(reg);
414 
415         cd->rtable[link_sw_addr] = link_port_addr;
416 
417         return 0;
418 out:
419         kfree(cd->rtable);
420         return ret;
421 }
422 
423 static void dsa_of_free_platform_data(struct dsa_platform_data *pd)
424 {
425         int i;
426         int port_index;
427 
428         for (i = 0; i < pd->nr_chips; i++) {
429                 port_index = 0;
430                 while (port_index < DSA_MAX_PORTS) {
431                         kfree(pd->chip[i].port_names[port_index]);
432                         port_index++;
433                 }
434                 kfree(pd->chip[i].rtable);
435         }
436         kfree(pd->chip);
437 }
438 
439 static int dsa_of_probe(struct platform_device *pdev)
440 {
441         struct device_node *np = pdev->dev.of_node;
442         struct device_node *child, *mdio, *ethernet, *port, *link;
443         struct mii_bus *mdio_bus;
444         struct platform_device *ethernet_dev;
445         struct dsa_platform_data *pd;
446         struct dsa_chip_data *cd;
447         const char *port_name;
448         int chip_index, port_index;
449         const unsigned int *sw_addr, *port_reg;
450         int ret;
451 
452         mdio = of_parse_phandle(np, "dsa,mii-bus", 0);
453         if (!mdio)
454                 return -EINVAL;
455 
456         mdio_bus = of_mdio_find_bus(mdio);
457         if (!mdio_bus)
458                 return -EINVAL;
459 
460         ethernet = of_parse_phandle(np, "dsa,ethernet", 0);
461         if (!ethernet)
462                 return -EINVAL;
463 
464         ethernet_dev = of_find_device_by_node(ethernet);
465         if (!ethernet_dev)
466                 return -ENODEV;
467 
468         pd = kzalloc(sizeof(*pd), GFP_KERNEL);
469         if (!pd)
470                 return -ENOMEM;
471 
472         pdev->dev.platform_data = pd;
473         pd->netdev = &ethernet_dev->dev;
474         pd->nr_chips = of_get_child_count(np);
475         if (pd->nr_chips > DSA_MAX_SWITCHES)
476                 pd->nr_chips = DSA_MAX_SWITCHES;
477 
478         pd->chip = kzalloc(pd->nr_chips * sizeof(struct dsa_chip_data),
479                         GFP_KERNEL);
480         if (!pd->chip) {
481                 ret = -ENOMEM;
482                 goto out_free;
483         }
484 
485         chip_index = -1;
486         for_each_available_child_of_node(np, child) {
487                 chip_index++;
488                 cd = &pd->chip[chip_index];
489 
490                 cd->of_node = child;
491                 cd->host_dev = &mdio_bus->dev;
492 
493                 sw_addr = of_get_property(child, "reg", NULL);
494                 if (!sw_addr)
495                         continue;
496 
497                 cd->sw_addr = be32_to_cpup(sw_addr);
498                 if (cd->sw_addr > PHY_MAX_ADDR)
499                         continue;
500 
501                 for_each_available_child_of_node(child, port) {
502                         port_reg = of_get_property(port, "reg", NULL);
503                         if (!port_reg)
504                                 continue;
505 
506                         port_index = be32_to_cpup(port_reg);
507 
508                         port_name = of_get_property(port, "label", NULL);
509                         if (!port_name)
510                                 continue;
511 
512                         cd->port_dn[port_index] = port;
513 
514                         cd->port_names[port_index] = kstrdup(port_name,
515                                         GFP_KERNEL);
516                         if (!cd->port_names[port_index]) {
517                                 ret = -ENOMEM;
518                                 goto out_free_chip;
519                         }
520 
521                         link = of_parse_phandle(port, "link", 0);
522 
523                         if (!strcmp(port_name, "dsa") && link &&
524                                         pd->nr_chips > 1) {
525                                 ret = dsa_of_setup_routing_table(pd, cd,
526                                                 chip_index, link);
527                                 if (ret)
528                                         goto out_free_chip;
529                         }
530 
531                         if (port_index == DSA_MAX_PORTS)
532                                 break;
533                 }
534         }
535 
536         return 0;
537 
538 out_free_chip:
539         dsa_of_free_platform_data(pd);
540 out_free:
541         kfree(pd);
542         pdev->dev.platform_data = NULL;
543         return ret;
544 }
545 
546 static void dsa_of_remove(struct platform_device *pdev)
547 {
548         struct dsa_platform_data *pd = pdev->dev.platform_data;
549 
550         if (!pdev->dev.of_node)
551                 return;
552 
553         dsa_of_free_platform_data(pd);
554         kfree(pd);
555 }
556 #else
557 static inline int dsa_of_probe(struct platform_device *pdev)
558 {
559         return 0;
560 }
561 
562 static inline void dsa_of_remove(struct platform_device *pdev)
563 {
564 }
565 #endif
566 
567 static int dsa_probe(struct platform_device *pdev)
568 {
569         static int dsa_version_printed;
570         struct dsa_platform_data *pd = pdev->dev.platform_data;
571         struct net_device *dev;
572         struct dsa_switch_tree *dst;
573         int i, ret;
574 
575         if (!dsa_version_printed++)
576                 printk(KERN_NOTICE "Distributed Switch Architecture "
577                         "driver version %s\n", dsa_driver_version);
578 
579         if (pdev->dev.of_node) {
580                 ret = dsa_of_probe(pdev);
581                 if (ret)
582                         return ret;
583 
584                 pd = pdev->dev.platform_data;
585         }
586 
587         if (pd == NULL || pd->netdev == NULL)
588                 return -EINVAL;
589 
590         dev = dev_to_net_device(pd->netdev);
591         if (dev == NULL) {
592                 ret = -EINVAL;
593                 goto out;
594         }
595 
596         if (dev->dsa_ptr != NULL) {
597                 dev_put(dev);
598                 ret = -EEXIST;
599                 goto out;
600         }
601 
602         dst = kzalloc(sizeof(*dst), GFP_KERNEL);
603         if (dst == NULL) {
604                 dev_put(dev);
605                 ret = -ENOMEM;
606                 goto out;
607         }
608 
609         platform_set_drvdata(pdev, dst);
610 
611         dst->pd = pd;
612         dst->master_netdev = dev;
613         dst->cpu_switch = -1;
614         dst->cpu_port = -1;
615 
616         for (i = 0; i < pd->nr_chips; i++) {
617                 struct dsa_switch *ds;
618 
619                 ds = dsa_switch_setup(dst, i, &pdev->dev, pd->chip[i].host_dev);
620                 if (IS_ERR(ds)) {
621                         printk(KERN_ERR "%s[%d]: couldn't create dsa switch "
622                                 "instance (error %ld)\n", dev->name, i,
623                                 PTR_ERR(ds));
624                         continue;
625                 }
626 
627                 dst->ds[i] = ds;
628                 if (ds->drv->poll_link != NULL)
629                         dst->link_poll_needed = 1;
630         }
631 
632         /*
633          * If we use a tagging format that doesn't have an ethertype
634          * field, make sure that all packets from this point on get
635          * sent to the tag format's receive function.
636          */
637         wmb();
638         dev->dsa_ptr = (void *)dst;
639 
640         if (dst->link_poll_needed) {
641                 INIT_WORK(&dst->link_poll_work, dsa_link_poll_work);
642                 init_timer(&dst->link_poll_timer);
643                 dst->link_poll_timer.data = (unsigned long)dst;
644                 dst->link_poll_timer.function = dsa_link_poll_timer;
645                 dst->link_poll_timer.expires = round_jiffies(jiffies + HZ);
646                 add_timer(&dst->link_poll_timer);
647         }
648 
649         return 0;
650 
651 out:
652         dsa_of_remove(pdev);
653 
654         return ret;
655 }
656 
657 static int dsa_remove(struct platform_device *pdev)
658 {
659         struct dsa_switch_tree *dst = platform_get_drvdata(pdev);
660         int i;
661 
662         if (dst->link_poll_needed)
663                 del_timer_sync(&dst->link_poll_timer);
664 
665         flush_work(&dst->link_poll_work);
666 
667         for (i = 0; i < dst->pd->nr_chips; i++) {
668                 struct dsa_switch *ds = dst->ds[i];
669 
670                 if (ds != NULL)
671                         dsa_switch_destroy(ds);
672         }
673 
674         dsa_of_remove(pdev);
675 
676         return 0;
677 }
678 
679 static void dsa_shutdown(struct platform_device *pdev)
680 {
681 }
682 
683 static int dsa_switch_rcv(struct sk_buff *skb, struct net_device *dev,
684                           struct packet_type *pt, struct net_device *orig_dev)
685 {
686         struct dsa_switch_tree *dst = dev->dsa_ptr;
687 
688         if (unlikely(dst == NULL)) {
689                 kfree_skb(skb);
690                 return 0;
691         }
692 
693         return dst->rcv(skb, dev, pt, orig_dev);
694 }
695 
696 static struct packet_type dsa_pack_type __read_mostly = {
697         .type   = cpu_to_be16(ETH_P_XDSA),
698         .func   = dsa_switch_rcv,
699 };
700 
701 #ifdef CONFIG_PM_SLEEP
702 static int dsa_suspend(struct device *d)
703 {
704         struct platform_device *pdev = to_platform_device(d);
705         struct dsa_switch_tree *dst = platform_get_drvdata(pdev);
706         int i, ret = 0;
707 
708         for (i = 0; i < dst->pd->nr_chips; i++) {
709                 struct dsa_switch *ds = dst->ds[i];
710 
711                 if (ds != NULL)
712                         ret = dsa_switch_suspend(ds);
713         }
714 
715         return ret;
716 }
717 
718 static int dsa_resume(struct device *d)
719 {
720         struct platform_device *pdev = to_platform_device(d);
721         struct dsa_switch_tree *dst = platform_get_drvdata(pdev);
722         int i, ret = 0;
723 
724         for (i = 0; i < dst->pd->nr_chips; i++) {
725                 struct dsa_switch *ds = dst->ds[i];
726 
727                 if (ds != NULL)
728                         ret = dsa_switch_resume(ds);
729         }
730 
731         return ret;
732 }
733 #endif
734 
735 static SIMPLE_DEV_PM_OPS(dsa_pm_ops, dsa_suspend, dsa_resume);
736 
737 static const struct of_device_id dsa_of_match_table[] = {
738         { .compatible = "brcm,bcm7445-switch-v4.0" },
739         { .compatible = "marvell,dsa", },
740         {}
741 };
742 MODULE_DEVICE_TABLE(of, dsa_of_match_table);
743 
744 static struct platform_driver dsa_driver = {
745         .probe          = dsa_probe,
746         .remove         = dsa_remove,
747         .shutdown       = dsa_shutdown,
748         .driver = {
749                 .name   = "dsa",
750                 .owner  = THIS_MODULE,
751                 .of_match_table = dsa_of_match_table,
752                 .pm     = &dsa_pm_ops,
753         },
754 };
755 
756 static int __init dsa_init_module(void)
757 {
758         int rc;
759 
760         rc = platform_driver_register(&dsa_driver);
761         if (rc)
762                 return rc;
763 
764         dev_add_pack(&dsa_pack_type);
765 
766         return 0;
767 }
768 module_init(dsa_init_module);
769 
770 static void __exit dsa_cleanup_module(void)
771 {
772         dev_remove_pack(&dsa_pack_type);
773         platform_driver_unregister(&dsa_driver);
774 }
775 module_exit(dsa_cleanup_module);
776 
777 MODULE_AUTHOR("Lennert Buytenhek <buytenh@wantstofly.org>");
778 MODULE_DESCRIPTION("Driver for Distributed Switch Architecture switch chips");
779 MODULE_LICENSE("GPL");
780 MODULE_ALIAS("platform:dsa");
781 

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