add wifi6 8852be driver

hc

2024-12-19 9370bb92b2d16684ee45cf24e879c93c509162da

 kernel/net/dsa/dsa.c
..
..
@@ -1,12 +1,8 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
1
2
 /*
2
3
  * net/dsa/dsa.c - Hardware switch handling
3
4
  * Copyright (c) 2008-2009 Marvell Semiconductor
4
5
  * Copyright (c) 2013 Florian Fainelli <florian@openwrt.org>
5
- *
6
- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License as published by
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- * the Free Software Foundation; either version 2 of the License, or
9
- * (at your option) any later version.
10
6
  */
11
7
 
12
8
 #include <linux/device.h>
..
..
@@ -27,6 +23,9 @@
27
23
 
28
24
 #include "dsa_priv.h"
29
25
 
26
+static LIST_HEAD(dsa_tag_drivers_list);
27
+static DEFINE_MUTEX(dsa_tag_drivers_lock);
28
+
30
29
 static struct sk_buff *dsa_slave_notag_xmit(struct sk_buff *skb,
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30
 					    struct net_device *dev)
32
31
 {
..
..
@@ -35,53 +34,97 @@
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34
 }
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35
 
37
36
 static const struct dsa_device_ops none_ops = {
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+	.name	= "none",
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+	.proto	= DSA_TAG_PROTO_NONE,
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39
 	.xmit	= dsa_slave_notag_xmit,
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40
 	.rcv	= NULL,
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41
 };
41
42
 
42
-const struct dsa_device_ops *dsa_device_ops[DSA_TAG_LAST] = {
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-#ifdef CONFIG_NET_DSA_TAG_BRCM
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-	[DSA_TAG_PROTO_BRCM] = &brcm_netdev_ops,
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-#endif
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-#ifdef CONFIG_NET_DSA_TAG_BRCM_PREPEND
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-	[DSA_TAG_PROTO_BRCM_PREPEND] = &brcm_prepend_netdev_ops,
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-#endif
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-#ifdef CONFIG_NET_DSA_TAG_DSA
50
-	[DSA_TAG_PROTO_DSA] = &dsa_netdev_ops,
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-#endif
52
-#ifdef CONFIG_NET_DSA_TAG_EDSA
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-	[DSA_TAG_PROTO_EDSA] = &edsa_netdev_ops,
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-#endif
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-#ifdef CONFIG_NET_DSA_TAG_KSZ
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-	[DSA_TAG_PROTO_KSZ] = &ksz_netdev_ops,
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-#endif
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-#ifdef CONFIG_NET_DSA_TAG_LAN9303
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-	[DSA_TAG_PROTO_LAN9303] = &lan9303_netdev_ops,
60
-#endif
61
-#ifdef CONFIG_NET_DSA_TAG_MTK
62
-	[DSA_TAG_PROTO_MTK] = &mtk_netdev_ops,
63
-#endif
64
-#ifdef CONFIG_NET_DSA_TAG_QCA
65
-	[DSA_TAG_PROTO_QCA] = &qca_netdev_ops,
66
-#endif
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-#ifdef CONFIG_NET_DSA_TAG_TRAILER
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-	[DSA_TAG_PROTO_TRAILER] = &trailer_netdev_ops,
69
-#endif
70
-	[DSA_TAG_PROTO_NONE] = &none_ops,
43
+DSA_TAG_DRIVER(none_ops);
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+
45
+static void dsa_tag_driver_register(struct dsa_tag_driver *dsa_tag_driver,
46
+				    struct module *owner)
47
+{
48
+	dsa_tag_driver->owner = owner;
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+
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+	mutex_lock(&dsa_tag_drivers_lock);
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+	list_add_tail(&dsa_tag_driver->list, &dsa_tag_drivers_list);
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+	mutex_unlock(&dsa_tag_drivers_lock);
53
+}
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+
55
+void dsa_tag_drivers_register(struct dsa_tag_driver *dsa_tag_driver_array[],
56
+			      unsigned int count, struct module *owner)
57
+{
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+	unsigned int i;
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+
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+	for (i = 0; i < count; i++)
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+		dsa_tag_driver_register(dsa_tag_driver_array[i], owner);
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+}
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+
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+static void dsa_tag_driver_unregister(struct dsa_tag_driver *dsa_tag_driver)
65
+{
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+	mutex_lock(&dsa_tag_drivers_lock);
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+	list_del(&dsa_tag_driver->list);
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+	mutex_unlock(&dsa_tag_drivers_lock);
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+}
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+EXPORT_SYMBOL_GPL(dsa_tag_drivers_register);
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+
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+void dsa_tag_drivers_unregister(struct dsa_tag_driver *dsa_tag_driver_array[],
73
+				unsigned int count)
74
+{
75
+	unsigned int i;
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+
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+	for (i = 0; i < count; i++)
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+		dsa_tag_driver_unregister(dsa_tag_driver_array[i]);
79
+}
80
+EXPORT_SYMBOL_GPL(dsa_tag_drivers_unregister);
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+
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+const char *dsa_tag_protocol_to_str(const struct dsa_device_ops *ops)
83
+{
84
+	return ops->name;
71
85
 };
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86
 
73
-const struct dsa_device_ops *dsa_resolve_tag_protocol(int tag_protocol)
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+const struct dsa_device_ops *dsa_tag_driver_get(int tag_protocol)
74
88
 {
89
+	struct dsa_tag_driver *dsa_tag_driver;
75
90
 	const struct dsa_device_ops *ops;
91
+	bool found = false;
76
92
 
77
-	if (tag_protocol >= DSA_TAG_LAST)
78
-		return ERR_PTR(-EINVAL);
79
-	ops = dsa_device_ops[tag_protocol];
93
+	request_module("%s%d", DSA_TAG_DRIVER_ALIAS, tag_protocol);
80
94
 
81
-	if (!ops)
82
-		return ERR_PTR(-ENOPROTOOPT);
95
+	mutex_lock(&dsa_tag_drivers_lock);
96
+	list_for_each_entry(dsa_tag_driver, &dsa_tag_drivers_list, list) {
97
+		ops = dsa_tag_driver->ops;
98
+		if (ops->proto == tag_protocol) {
99
+			found = true;
100
+			break;
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+		}
102
+	}
103
+
104
+	if (found) {
105
+		if (!try_module_get(dsa_tag_driver->owner))
106
+			ops = ERR_PTR(-ENOPROTOOPT);
107
+	} else {
108
+		ops = ERR_PTR(-ENOPROTOOPT);
109
+	}
110
+
111
+	mutex_unlock(&dsa_tag_drivers_lock);
83
112
 
84
113
 	return ops;
114
+}
115
+
116
+void dsa_tag_driver_put(const struct dsa_device_ops *ops)
117
+{
118
+	struct dsa_tag_driver *dsa_tag_driver;
119
+
120
+	mutex_lock(&dsa_tag_drivers_lock);
121
+	list_for_each_entry(dsa_tag_driver, &dsa_tag_drivers_list, list) {
122
+		if (dsa_tag_driver->ops == ops) {
123
+			module_put(dsa_tag_driver->owner);
124
+			break;
125
+		}
126
+	}
127
+	mutex_unlock(&dsa_tag_drivers_lock);
85
128
 }
86
129
 
87
130
 static int dev_is_class(struct device *dev, void *class)
..
..
@@ -182,6 +225,15 @@
182
225
 	skb->pkt_type = PACKET_HOST;
183
226
 	skb->protocol = eth_type_trans(skb, skb->dev);
184
227
 
228
+	if (unlikely(cpu_dp->ds->untag_bridge_pvid)) {
229
+		nskb = dsa_untag_bridge_pvid(skb);
230
+		if (!nskb) {
231
+			kfree_skb(skb);
232
+			return 0;
233
+		}
234
+		skb = nskb;
235
+	}
236
+
185
237
 	s = this_cpu_ptr(p->stats64);
186
238
 	u64_stats_update_begin(&s->syncp);
187
239
 	s->rx_packets++;
..
..
@@ -199,7 +251,9 @@
199
251
 #ifdef CONFIG_PM_SLEEP
200
252
 static bool dsa_is_port_initialized(struct dsa_switch *ds, int p)
201
253
 {
202
-	return dsa_is_user_port(ds, p) && ds->ports[p].slave;
254
+	const struct dsa_port *dp = dsa_to_port(ds, p);
255
+
256
+	return dp->type == DSA_PORT_TYPE_USER && dp->slave;
203
257
 }
204
258
 
205
259
 int dsa_switch_suspend(struct dsa_switch *ds)
..
..
@@ -211,7 +265,7 @@
211
265
 		if (!dsa_is_port_initialized(ds, i))
212
266
 			continue;
213
267
 
214
-		ret = dsa_slave_suspend(ds->ports[i].slave);
268
+		ret = dsa_slave_suspend(dsa_to_port(ds, i)->slave);
215
269
 		if (ret)
216
270
 			return ret;
217
271
 	}
..
..
@@ -238,7 +292,7 @@
238
292
 		if (!dsa_is_port_initialized(ds, i))
239
293
 			continue;
240
294
 
241
-		ret = dsa_slave_resume(ds->ports[i].slave);
295
+		ret = dsa_slave_resume(dsa_to_port(ds, i)->slave);
242
296
 		if (ret)
243
297
 			return ret;
244
298
 	}
..
..
@@ -282,6 +336,122 @@
282
336
 }
283
337
 EXPORT_SYMBOL_GPL(call_dsa_notifiers);
284
338
 
339
+int dsa_devlink_param_get(struct devlink *dl, u32 id,
340
+			  struct devlink_param_gset_ctx *ctx)
341
+{
342
+	struct dsa_switch *ds = dsa_devlink_to_ds(dl);
343
+
344
+	if (!ds->ops->devlink_param_get)
345
+		return -EOPNOTSUPP;
346
+
347
+	return ds->ops->devlink_param_get(ds, id, ctx);
348
+}
349
+EXPORT_SYMBOL_GPL(dsa_devlink_param_get);
350
+
351
+int dsa_devlink_param_set(struct devlink *dl, u32 id,
352
+			  struct devlink_param_gset_ctx *ctx)
353
+{
354
+	struct dsa_switch *ds = dsa_devlink_to_ds(dl);
355
+
356
+	if (!ds->ops->devlink_param_set)
357
+		return -EOPNOTSUPP;
358
+
359
+	return ds->ops->devlink_param_set(ds, id, ctx);
360
+}
361
+EXPORT_SYMBOL_GPL(dsa_devlink_param_set);
362
+
363
+int dsa_devlink_params_register(struct dsa_switch *ds,
364
+				const struct devlink_param *params,
365
+				size_t params_count)
366
+{
367
+	return devlink_params_register(ds->devlink, params, params_count);
368
+}
369
+EXPORT_SYMBOL_GPL(dsa_devlink_params_register);
370
+
371
+void dsa_devlink_params_unregister(struct dsa_switch *ds,
372
+				   const struct devlink_param *params,
373
+				   size_t params_count)
374
+{
375
+	devlink_params_unregister(ds->devlink, params, params_count);
376
+}
377
+EXPORT_SYMBOL_GPL(dsa_devlink_params_unregister);
378
+
379
+int dsa_devlink_resource_register(struct dsa_switch *ds,
380
+				  const char *resource_name,
381
+				  u64 resource_size,
382
+				  u64 resource_id,
383
+				  u64 parent_resource_id,
384
+				  const struct devlink_resource_size_params *size_params)
385
+{
386
+	return devlink_resource_register(ds->devlink, resource_name,
387
+					 resource_size, resource_id,
388
+					 parent_resource_id,
389
+					 size_params);
390
+}
391
+EXPORT_SYMBOL_GPL(dsa_devlink_resource_register);
392
+
393
+void dsa_devlink_resources_unregister(struct dsa_switch *ds)
394
+{
395
+	devlink_resources_unregister(ds->devlink, NULL);
396
+}
397
+EXPORT_SYMBOL_GPL(dsa_devlink_resources_unregister);
398
+
399
+void dsa_devlink_resource_occ_get_register(struct dsa_switch *ds,
400
+					   u64 resource_id,
401
+					   devlink_resource_occ_get_t *occ_get,
402
+					   void *occ_get_priv)
403
+{
404
+	return devlink_resource_occ_get_register(ds->devlink, resource_id,
405
+						 occ_get, occ_get_priv);
406
+}
407
+EXPORT_SYMBOL_GPL(dsa_devlink_resource_occ_get_register);
408
+
409
+void dsa_devlink_resource_occ_get_unregister(struct dsa_switch *ds,
410
+					     u64 resource_id)
411
+{
412
+	devlink_resource_occ_get_unregister(ds->devlink, resource_id);
413
+}
414
+EXPORT_SYMBOL_GPL(dsa_devlink_resource_occ_get_unregister);
415
+
416
+struct devlink_region *
417
+dsa_devlink_region_create(struct dsa_switch *ds,
418
+			  const struct devlink_region_ops *ops,
419
+			  u32 region_max_snapshots, u64 region_size)
420
+{
421
+	return devlink_region_create(ds->devlink, ops, region_max_snapshots,
422
+				     region_size);
423
+}
424
+EXPORT_SYMBOL_GPL(dsa_devlink_region_create);
425
+
426
+struct devlink_region *
427
+dsa_devlink_port_region_create(struct dsa_switch *ds,
428
+			       int port,
429
+			       const struct devlink_port_region_ops *ops,
430
+			       u32 region_max_snapshots, u64 region_size)
431
+{
432
+	struct dsa_port *dp = dsa_to_port(ds, port);
433
+
434
+	return devlink_port_region_create(&dp->devlink_port, ops,
435
+					  region_max_snapshots,
436
+					  region_size);
437
+}
438
+EXPORT_SYMBOL_GPL(dsa_devlink_port_region_create);
439
+
440
+void dsa_devlink_region_destroy(struct devlink_region *region)
441
+{
442
+	devlink_region_destroy(region);
443
+}
444
+EXPORT_SYMBOL_GPL(dsa_devlink_region_destroy);
445
+
446
+struct dsa_port *dsa_port_from_netdev(struct net_device *netdev)
447
+{
448
+	if (!netdev || !dsa_slave_dev_check(netdev))
449
+		return ERR_PTR(-ENODEV);
450
+
451
+	return dsa_slave_to_port(netdev);
452
+}
453
+EXPORT_SYMBOL_GPL(dsa_port_from_netdev);
454
+
285
455
 static int __init dsa_init_module(void)
286
456
 {
287
457
 	int rc;
..
..
@@ -295,16 +465,13 @@
295
465
 	if (rc)
296
466
 		goto register_notifier_fail;
297
467
 
298
-	rc = dsa_legacy_register();
299
-	if (rc)
300
-		goto legacy_register_fail;
301
-
302
468
 	dev_add_pack(&dsa_pack_type);
469
+
470
+	dsa_tag_driver_register(&DSA_TAG_DRIVER_NAME(none_ops),
471
+				THIS_MODULE);
303
472
 
304
473
 	return 0;
305
474
 
306
-legacy_register_fail:
307
-	dsa_slave_unregister_notifier();
308
475
 register_notifier_fail:
309
476
 	destroy_workqueue(dsa_owq);
310
477
 
..
..
@@ -314,9 +481,10 @@
314
481
 
315
482
 static void __exit dsa_cleanup_module(void)
316
483
 {
484
+	dsa_tag_driver_unregister(&DSA_TAG_DRIVER_NAME(none_ops));
485
+
317
486
 	dsa_slave_unregister_notifier();
318
487
 	dev_remove_pack(&dsa_pack_type);
319
-	dsa_legacy_unregister();
320
488
 	destroy_workqueue(dsa_owq);
321
489
 }
322
490
 module_exit(dsa_cleanup_module);