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-rw-r--r--net/dsa/Kconfig109
-rw-r--r--net/dsa/Makefile22
-rw-r--r--net/dsa/dsa.c172
-rw-r--r--net/dsa/dsa2.c64
-rw-r--r--net/dsa/dsa_priv.h50
-rw-r--r--net/dsa/legacy.c745
-rw-r--r--net/dsa/port.c87
-rw-r--r--net/dsa/slave.c139
-rw-r--r--net/dsa/switch.c31
-rw-r--r--net/dsa/tag_8021q.c222
-rw-r--r--net/dsa/tag_brcm.c41
-rw-r--r--net/dsa/tag_dsa.c15
-rw-r--r--net/dsa/tag_edsa.c15
-rw-r--r--net/dsa/tag_gswip.c9
-rw-r--r--net/dsa/tag_ksz.c29
-rw-r--r--net/dsa/tag_lan9303.c20
-rw-r--r--net/dsa/tag_mtk.c18
-rw-r--r--net/dsa/tag_qca.c19
-rw-r--r--net/dsa/tag_sja1105.c131
-rw-r--r--net/dsa/tag_trailer.c15
20 files changed, 899 insertions, 1054 deletions
diff --git a/net/dsa/Kconfig b/net/dsa/Kconfig
index fab49132345f..cf855352a440 100644
--- a/net/dsa/Kconfig
+++ b/net/dsa/Kconfig
@@ -4,60 +4,117 @@ config HAVE_NET_DSA
# Drivers must select NET_DSA and the appropriate tagging format
-config NET_DSA
+menuconfig NET_DSA
tristate "Distributed Switch Architecture"
depends on HAVE_NET_DSA
depends on BRIDGE || BRIDGE=n
select NET_SWITCHDEV
select PHYLINK
+ select NET_DEVLINK
---help---
Say Y if you want to enable support for the hardware switches supported
by the Distributed Switch Architecture.
if NET_DSA
-config NET_DSA_LEGACY
- bool "Support for older platform device and Device Tree registration"
- default y
- ---help---
- Say Y if you want to enable support for the older platform device and
- deprecated Device Tree binding registration.
+# tagging formats
+config NET_DSA_TAG_8021Q
+ tristate "Tag driver for switches using custom 802.1Q VLAN headers"
+ select VLAN_8021Q
+ help
+ Unlike the other tagging protocols, the 802.1Q config option simply
+ provides helpers for other tagging implementations that might rely on
+ VLAN in one way or another. It is not a complete solution.
- This feature is scheduled for removal in 4.17.
+ Drivers which use these helpers should select this as dependency.
+
+config NET_DSA_TAG_BRCM_COMMON
+ tristate
+ default n
-# tagging formats
config NET_DSA_TAG_BRCM
- bool
+ tristate "Tag driver for Broadcom switches using in-frame headers"
+ select NET_DSA_TAG_BRCM_COMMON
+ help
+ Say Y if you want to enable support for tagging frames for the
+ Broadcom switches which place the tag after the MAC source address.
+
config NET_DSA_TAG_BRCM_PREPEND
- bool
+ tristate "Tag driver for Broadcom switches using prepended headers"
+ select NET_DSA_TAG_BRCM_COMMON
+ help
+ Say Y if you want to enable support for tagging frames for the
+ Broadcom switches which places the tag before the Ethernet header
+ (prepended).
+
+config NET_DSA_TAG_GSWIP
+ tristate "Tag driver for Lantiq / Intel GSWIP switches"
+ help
+ Say Y or M if you want to enable support for tagging frames for the
+ Lantiq / Intel GSWIP switches.
config NET_DSA_TAG_DSA
- bool
+ tristate "Tag driver for Marvell switches using DSA headers"
+ help
+ Say Y or M if you want to enable support for tagging frames for the
+ Marvell switches which use DSA headers.
config NET_DSA_TAG_EDSA
- bool
+ tristate "Tag driver for Marvell switches using EtherType DSA headers"
+ help
+ Say Y or M if you want to enable support for tagging frames for the
+ Marvell switches which use EtherType DSA headers.
-config NET_DSA_TAG_GSWIP
- bool
+config NET_DSA_TAG_MTK
+ tristate "Tag driver for Mediatek switches"
+ help
+ Say Y or M if you want to enable support for tagging frames for
+ Mediatek switches.
+
+config NET_DSA_TAG_KSZ_COMMON
+ tristate
+ default n
config NET_DSA_TAG_KSZ
- bool
+ tristate "Tag driver for Microchip 9893 family of switches"
+ select NET_DSA_TAG_KSZ_COMMON
+ help
+ Say Y if you want to enable support for tagging frames for the
+ Microchip 9893 family of switches.
config NET_DSA_TAG_KSZ9477
- bool
- select NET_DSA_TAG_KSZ
+ tristate "Tag driver for Microchip 9477 family of switches"
+ select NET_DSA_TAG_KSZ_COMMON
+ help
+ Say Y if you want to enable support for tagging frames for the
+ Microchip 9477 family of switches.
-config NET_DSA_TAG_LAN9303
- bool
+config NET_DSA_TAG_QCA
+ tristate "Tag driver for Qualcomm Atheros QCA8K switches"
+ help
+ Say Y or M if you want to enable support for tagging frames for
+ the Qualcomm Atheros QCA8K switches.
-config NET_DSA_TAG_MTK
- bool
+config NET_DSA_TAG_LAN9303
+ tristate "Tag driver for SMSC/Microchip LAN9303 family of switches"
+ help
+ Say Y or M if you want to enable support for tagging frames for the
+ SMSC/Microchip LAN9303 family of switches.
+
+config NET_DSA_TAG_SJA1105
+ tristate "Tag driver for NXP SJA1105 switches"
+ select NET_DSA_TAG_8021Q
+ help
+ Say Y or M if you want to enable support for tagging frames with the
+ NXP SJA1105 switch family. Both the native tagging protocol (which
+ is only for link-local traffic) as well as non-native tagging (based
+ on a custom 802.1Q VLAN header) are available.
config NET_DSA_TAG_TRAILER
- bool
-
-config NET_DSA_TAG_QCA
- bool
+ tristate "Tag driver for switches using a trailer tag"
+ help
+ Say Y or M if you want to enable support for tagging frames at
+ with a trailed. e.g. Marvell 88E6060.
endif
diff --git a/net/dsa/Makefile b/net/dsa/Makefile
index 6e721f7a2947..c342f54715ba 100644
--- a/net/dsa/Makefile
+++ b/net/dsa/Makefile
@@ -2,16 +2,16 @@
# the core
obj-$(CONFIG_NET_DSA) += dsa_core.o
dsa_core-y += dsa.o dsa2.o master.o port.o slave.o switch.o
-dsa_core-$(CONFIG_NET_DSA_LEGACY) += legacy.o
# tagging formats
-dsa_core-$(CONFIG_NET_DSA_TAG_BRCM) += tag_brcm.o
-dsa_core-$(CONFIG_NET_DSA_TAG_BRCM_PREPEND) += tag_brcm.o
-dsa_core-$(CONFIG_NET_DSA_TAG_DSA) += tag_dsa.o
-dsa_core-$(CONFIG_NET_DSA_TAG_EDSA) += tag_edsa.o
-dsa_core-$(CONFIG_NET_DSA_TAG_GSWIP) += tag_gswip.o
-dsa_core-$(CONFIG_NET_DSA_TAG_KSZ) += tag_ksz.o
-dsa_core-$(CONFIG_NET_DSA_TAG_LAN9303) += tag_lan9303.o
-dsa_core-$(CONFIG_NET_DSA_TAG_MTK) += tag_mtk.o
-dsa_core-$(CONFIG_NET_DSA_TAG_QCA) += tag_qca.o
-dsa_core-$(CONFIG_NET_DSA_TAG_TRAILER) += tag_trailer.o
+obj-$(CONFIG_NET_DSA_TAG_8021Q) += tag_8021q.o
+obj-$(CONFIG_NET_DSA_TAG_BRCM_COMMON) += tag_brcm.o
+obj-$(CONFIG_NET_DSA_TAG_DSA) += tag_dsa.o
+obj-$(CONFIG_NET_DSA_TAG_EDSA) += tag_edsa.o
+obj-$(CONFIG_NET_DSA_TAG_GSWIP) += tag_gswip.o
+obj-$(CONFIG_NET_DSA_TAG_KSZ_COMMON) += tag_ksz.o
+obj-$(CONFIG_NET_DSA_TAG_LAN9303) += tag_lan9303.o
+obj-$(CONFIG_NET_DSA_TAG_MTK) += tag_mtk.o
+obj-$(CONFIG_NET_DSA_TAG_QCA) += tag_qca.o
+obj-$(CONFIG_NET_DSA_TAG_SJA1105) += tag_sja1105.o
+obj-$(CONFIG_NET_DSA_TAG_TRAILER) += tag_trailer.o
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index cb080efdc7b3..1fc782fab393 100644
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -27,6 +27,9 @@
#include "dsa_priv.h"
+static LIST_HEAD(dsa_tag_drivers_list);
+static DEFINE_MUTEX(dsa_tag_drivers_lock);
+
static struct sk_buff *dsa_slave_notag_xmit(struct sk_buff *skb,
struct net_device *dev)
{
@@ -35,106 +38,103 @@ static struct sk_buff *dsa_slave_notag_xmit(struct sk_buff *skb,
}
static const struct dsa_device_ops none_ops = {
+ .name = "none",
+ .proto = DSA_TAG_PROTO_NONE,
.xmit = dsa_slave_notag_xmit,
.rcv = NULL,
};
-const struct dsa_device_ops *dsa_device_ops[DSA_TAG_LAST] = {
-#ifdef CONFIG_NET_DSA_TAG_BRCM
- [DSA_TAG_PROTO_BRCM] = &brcm_netdev_ops,
-#endif
-#ifdef CONFIG_NET_DSA_TAG_BRCM_PREPEND
- [DSA_TAG_PROTO_BRCM_PREPEND] = &brcm_prepend_netdev_ops,
-#endif
-#ifdef CONFIG_NET_DSA_TAG_DSA
- [DSA_TAG_PROTO_DSA] = &dsa_netdev_ops,
-#endif
-#ifdef CONFIG_NET_DSA_TAG_EDSA
- [DSA_TAG_PROTO_EDSA] = &edsa_netdev_ops,
-#endif
-#ifdef CONFIG_NET_DSA_TAG_GSWIP
- [DSA_TAG_PROTO_GSWIP] = &gswip_netdev_ops,
-#endif
-#ifdef CONFIG_NET_DSA_TAG_KSZ9477
- [DSA_TAG_PROTO_KSZ9477] = &ksz9477_netdev_ops,
- [DSA_TAG_PROTO_KSZ9893] = &ksz9893_netdev_ops,
-#endif
-#ifdef CONFIG_NET_DSA_TAG_LAN9303
- [DSA_TAG_PROTO_LAN9303] = &lan9303_netdev_ops,
-#endif
-#ifdef CONFIG_NET_DSA_TAG_MTK
- [DSA_TAG_PROTO_MTK] = &mtk_netdev_ops,
-#endif
-#ifdef CONFIG_NET_DSA_TAG_QCA
- [DSA_TAG_PROTO_QCA] = &qca_netdev_ops,
-#endif
-#ifdef CONFIG_NET_DSA_TAG_TRAILER
- [DSA_TAG_PROTO_TRAILER] = &trailer_netdev_ops,
-#endif
- [DSA_TAG_PROTO_NONE] = &none_ops,
-};
+DSA_TAG_DRIVER(none_ops);
-const char *dsa_tag_protocol_to_str(const struct dsa_device_ops *ops)
+static void dsa_tag_driver_register(struct dsa_tag_driver *dsa_tag_driver,
+ struct module *owner)
+{
+ dsa_tag_driver->owner = owner;
+
+ mutex_lock(&dsa_tag_drivers_lock);
+ list_add_tail(&dsa_tag_driver->list, &dsa_tag_drivers_list);
+ mutex_unlock(&dsa_tag_drivers_lock);
+}
+
+void dsa_tag_drivers_register(struct dsa_tag_driver *dsa_tag_driver_array[],
+ unsigned int count, struct module *owner)
{
- const char *protocol_name[DSA_TAG_LAST] = {
-#ifdef CONFIG_NET_DSA_TAG_BRCM
- [DSA_TAG_PROTO_BRCM] = "brcm",
-#endif
-#ifdef CONFIG_NET_DSA_TAG_BRCM_PREPEND
- [DSA_TAG_PROTO_BRCM_PREPEND] = "brcm-prepend",
-#endif
-#ifdef CONFIG_NET_DSA_TAG_DSA
- [DSA_TAG_PROTO_DSA] = "dsa",
-#endif
-#ifdef CONFIG_NET_DSA_TAG_EDSA
- [DSA_TAG_PROTO_EDSA] = "edsa",
-#endif
-#ifdef CONFIG_NET_DSA_TAG_GSWIP
- [DSA_TAG_PROTO_GSWIP] = "gswip",
-#endif
-#ifdef CONFIG_NET_DSA_TAG_KSZ9477
- [DSA_TAG_PROTO_KSZ9477] = "ksz9477",
- [DSA_TAG_PROTO_KSZ9893] = "ksz9893",
-#endif
-#ifdef CONFIG_NET_DSA_TAG_LAN9303
- [DSA_TAG_PROTO_LAN9303] = "lan9303",
-#endif
-#ifdef CONFIG_NET_DSA_TAG_MTK
- [DSA_TAG_PROTO_MTK] = "mtk",
-#endif
-#ifdef CONFIG_NET_DSA_TAG_QCA
- [DSA_TAG_PROTO_QCA] = "qca",
-#endif
-#ifdef CONFIG_NET_DSA_TAG_TRAILER
- [DSA_TAG_PROTO_TRAILER] = "trailer",
-#endif
- [DSA_TAG_PROTO_NONE] = "none",
- };
unsigned int i;
- BUILD_BUG_ON(ARRAY_SIZE(protocol_name) != DSA_TAG_LAST);
+ for (i = 0; i < count; i++)
+ dsa_tag_driver_register(dsa_tag_driver_array[i], owner);
+}
- for (i = 0; i < ARRAY_SIZE(dsa_device_ops); i++)
- if (ops == dsa_device_ops[i])
- return protocol_name[i];
+static void dsa_tag_driver_unregister(struct dsa_tag_driver *dsa_tag_driver)
+{
+ mutex_lock(&dsa_tag_drivers_lock);
+ list_del(&dsa_tag_driver->list);
+ mutex_unlock(&dsa_tag_drivers_lock);
+}
+EXPORT_SYMBOL_GPL(dsa_tag_drivers_register);
+
+void dsa_tag_drivers_unregister(struct dsa_tag_driver *dsa_tag_driver_array[],
+ unsigned int count)
+{
+ unsigned int i;
- return protocol_name[DSA_TAG_PROTO_NONE];
+ for (i = 0; i < count; i++)
+ dsa_tag_driver_unregister(dsa_tag_driver_array[i]);
+}
+EXPORT_SYMBOL_GPL(dsa_tag_drivers_unregister);
+
+const char *dsa_tag_protocol_to_str(const struct dsa_device_ops *ops)
+{
+ return ops->name;
};
-const struct dsa_device_ops *dsa_resolve_tag_protocol(int tag_protocol)
+const struct dsa_device_ops *dsa_tag_driver_get(int tag_protocol)
{
+ struct dsa_tag_driver *dsa_tag_driver;
const struct dsa_device_ops *ops;
+ char module_name[128];
+ bool found = false;
+
+ snprintf(module_name, 127, "%s%d", DSA_TAG_DRIVER_ALIAS,
+ tag_protocol);
- if (tag_protocol >= DSA_TAG_LAST)
- return ERR_PTR(-EINVAL);
- ops = dsa_device_ops[tag_protocol];
+ request_module(module_name);
- if (!ops)
- return ERR_PTR(-ENOPROTOOPT);
+ mutex_lock(&dsa_tag_drivers_lock);
+ list_for_each_entry(dsa_tag_driver, &dsa_tag_drivers_list, list) {
+ ops = dsa_tag_driver->ops;
+ if (ops->proto == tag_protocol) {
+ found = true;
+ break;
+ }
+ }
+
+ if (found) {
+ if (!try_module_get(dsa_tag_driver->owner))
+ ops = ERR_PTR(-ENOPROTOOPT);
+ } else {
+ ops = ERR_PTR(-ENOPROTOOPT);
+ }
+
+ mutex_unlock(&dsa_tag_drivers_lock);
return ops;
}
+void dsa_tag_driver_put(const struct dsa_device_ops *ops)
+{
+ struct dsa_tag_driver *dsa_tag_driver;
+
+ mutex_lock(&dsa_tag_drivers_lock);
+ list_for_each_entry(dsa_tag_driver, &dsa_tag_drivers_list, list) {
+ if (dsa_tag_driver->ops == ops) {
+ module_put(dsa_tag_driver->owner);
+ break;
+ }
+ }
+ mutex_unlock(&dsa_tag_drivers_lock);
+}
+
static int dev_is_class(struct device *dev, void *class)
{
if (dev->class != NULL && !strcmp(dev->class->name, class))
@@ -346,16 +346,13 @@ static int __init dsa_init_module(void)
if (rc)
goto register_notifier_fail;
- rc = dsa_legacy_register();
- if (rc)
- goto legacy_register_fail;
-
dev_add_pack(&dsa_pack_type);
+ dsa_tag_driver_register(&DSA_TAG_DRIVER_NAME(none_ops),
+ THIS_MODULE);
+
return 0;
-legacy_register_fail:
- dsa_slave_unregister_notifier();
register_notifier_fail:
destroy_workqueue(dsa_owq);
@@ -365,9 +362,10 @@ module_init(dsa_init_module);
static void __exit dsa_cleanup_module(void)
{
+ dsa_tag_driver_unregister(&DSA_TAG_DRIVER_NAME(none_ops));
+
dsa_slave_unregister_notifier();
dev_remove_pack(&dsa_pack_type);
- dsa_legacy_unregister();
destroy_workqueue(dsa_owq);
}
module_exit(dsa_cleanup_module);
diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c
index c00ee464afc7..3b5f434cad3f 100644
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -18,6 +18,7 @@
#include <linux/rtnetlink.h>
#include <linux/of.h>
#include <linux/of_net.h>
+#include <net/devlink.h>
#include "dsa_priv.h"
@@ -257,14 +258,39 @@ static void dsa_tree_teardown_default_cpu(struct dsa_switch_tree *dst)
static int dsa_port_setup(struct dsa_port *dp)
{
+ enum devlink_port_flavour flavour;
struct dsa_switch *ds = dp->ds;
- int err = 0;
+ struct dsa_switch_tree *dst = ds->dst;
+ int err;
+
+ if (dp->type == DSA_PORT_TYPE_UNUSED)
+ return 0;
memset(&dp->devlink_port, 0, sizeof(dp->devlink_port));
+ dp->mac = of_get_mac_address(dp->dn);
- if (dp->type != DSA_PORT_TYPE_UNUSED)
- err = devlink_port_register(ds->devlink, &dp->devlink_port,
- dp->index);
+ switch (dp->type) {
+ case DSA_PORT_TYPE_CPU:
+ flavour = DEVLINK_PORT_FLAVOUR_CPU;
+ break;
+ case DSA_PORT_TYPE_DSA:
+ flavour = DEVLINK_PORT_FLAVOUR_DSA;
+ break;
+ case DSA_PORT_TYPE_USER: /* fall-through */
+ default:
+ flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL;
+ break;
+ }
+
+ /* dp->index is used now as port_number. However
+ * CPU and DSA ports should have separate numbering
+ * independent from front panel port numbers.
+ */
+ devlink_port_attrs_set(&dp->devlink_port, flavour,
+ dp->index, false, 0,
+ (const char *) &dst->index, sizeof(dst->index));
+ err = devlink_port_register(ds->devlink, &dp->devlink_port,
+ dp->index);
if (err)
return err;
@@ -272,13 +298,6 @@ static int dsa_port_setup(struct dsa_port *dp)
case DSA_PORT_TYPE_UNUSED:
break;
case DSA_PORT_TYPE_CPU:
- /* dp->index is used now as port_number. However
- * CPU ports should have separate numbering
- * independent from front panel port numbers.
- */
- devlink_port_attrs_set(&dp->devlink_port,
- DEVLINK_PORT_FLAVOUR_CPU,
- dp->index, false, 0);
err = dsa_port_link_register_of(dp);
if (err) {
dev_err(ds->dev, "failed to setup link for port %d.%d\n",
@@ -287,13 +306,6 @@ static int dsa_port_setup(struct dsa_port *dp)
}
break;
case DSA_PORT_TYPE_DSA:
- /* dp->index is used now as port_number. However
- * DSA ports should have separate numbering
- * independent from front panel port numbers.
- */
- devlink_port_attrs_set(&dp->devlink_port,
- DEVLINK_PORT_FLAVOUR_DSA,
- dp->index, false, 0);
err = dsa_port_link_register_of(dp);
if (err) {
dev_err(ds->dev, "failed to setup link for port %d.%d\n",
@@ -302,9 +314,6 @@ static int dsa_port_setup(struct dsa_port *dp)
}
break;
case DSA_PORT_TYPE_USER:
- devlink_port_attrs_set(&dp->devlink_port,
- DEVLINK_PORT_FLAVOUR_PHYSICAL,
- dp->index, false, 0);
err = dsa_slave_create(dp);
if (err)
dev_err(ds->dev, "failed to create slave for port %d.%d\n",
@@ -326,6 +335,8 @@ static void dsa_port_teardown(struct dsa_port *dp)
case DSA_PORT_TYPE_UNUSED:
break;
case DSA_PORT_TYPE_CPU:
+ dsa_tag_driver_put(dp->tag_ops);
+ /* fall-through */
case DSA_PORT_TYPE_DSA:
dsa_port_link_unregister_of(dp);
break;
@@ -360,14 +371,14 @@ static int dsa_switch_setup(struct dsa_switch *ds)
if (err)
return err;
- err = ds->ops->setup(ds);
- if (err < 0)
- return err;
-
err = dsa_switch_register_notifier(ds);
if (err)
return err;
+ err = ds->ops->setup(ds);
+ if (err < 0)
+ return err;
+
if (!ds->slave_mii_bus && ds->ops->phy_read) {
ds->slave_mii_bus = devm_mdiobus_alloc(ds->dev);
if (!ds->slave_mii_bus)
@@ -568,13 +579,14 @@ static int dsa_port_parse_cpu(struct dsa_port *dp, struct net_device *master)
enum dsa_tag_protocol tag_protocol;
tag_protocol = ds->ops->get_tag_protocol(ds, dp->index);
- tag_ops = dsa_resolve_tag_protocol(tag_protocol);
+ tag_ops = dsa_tag_driver_get(tag_protocol);
if (IS_ERR(tag_ops)) {
dev_warn(ds->dev, "No tagger for this switch\n");
return PTR_ERR(tag_ops);
}
dp->type = DSA_PORT_TYPE_CPU;
+ dp->filter = tag_ops->filter;
dp->rcv = tag_ops->rcv;
dp->tag_ops = tag_ops;
dp->master = master;
diff --git a/net/dsa/dsa_priv.h b/net/dsa/dsa_priv.h
index 093b7d145eb1..8f1222324646 100644
--- a/net/dsa/dsa_priv.h
+++ b/net/dsa/dsa_priv.h
@@ -84,22 +84,12 @@ struct dsa_slave_priv {
};
/* dsa.c */
-const struct dsa_device_ops *dsa_resolve_tag_protocol(int tag_protocol);
+const struct dsa_device_ops *dsa_tag_driver_get(int tag_protocol);
+void dsa_tag_driver_put(const struct dsa_device_ops *ops);
+
bool dsa_schedule_work(struct work_struct *work);
const char *dsa_tag_protocol_to_str(const struct dsa_device_ops *ops);
-/* legacy.c */
-#if IS_ENABLED(CONFIG_NET_DSA_LEGACY)
-int dsa_legacy_register(void);
-void dsa_legacy_unregister(void);
-#else
-static inline int dsa_legacy_register(void)
-{
- return 0;
-}
-
-static inline void dsa_legacy_unregister(void) { }
-#endif
int dsa_legacy_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
struct net_device *dev,
const unsigned char *addr, u16 vid,
@@ -169,6 +159,8 @@ int dsa_port_vlan_add(struct dsa_port *dp,
struct switchdev_trans *trans);
int dsa_port_vlan_del(struct dsa_port *dp,
const struct switchdev_obj_port_vlan *vlan);
+int dsa_port_vid_add(struct dsa_port *dp, u16 vid, u16 flags);
+int dsa_port_vid_del(struct dsa_port *dp, u16 vid);
int dsa_port_link_register_of(struct dsa_port *dp);
void dsa_port_link_unregister_of(struct dsa_port *dp);
@@ -182,6 +174,8 @@ int dsa_slave_resume(struct net_device *slave_dev);
int dsa_slave_register_notifier(void);
void dsa_slave_unregister_notifier(void);
+void *dsa_defer_xmit(struct sk_buff *skb, struct net_device *dev);
+
static inline struct dsa_port *dsa_slave_to_port(const struct net_device *dev)
{
struct dsa_slave_priv *p = netdev_priv(dev);
@@ -200,34 +194,4 @@ dsa_slave_to_master(const struct net_device *dev)
/* switch.c */
int dsa_switch_register_notifier(struct dsa_switch *ds);
void dsa_switch_unregister_notifier(struct dsa_switch *ds);
-
-/* tag_brcm.c */
-extern const struct dsa_device_ops brcm_netdev_ops;
-extern const struct dsa_device_ops brcm_prepend_netdev_ops;
-
-/* tag_dsa.c */
-extern const struct dsa_device_ops dsa_netdev_ops;
-
-/* tag_edsa.c */
-extern const struct dsa_device_ops edsa_netdev_ops;
-
-/* tag_gswip.c */
-extern const struct dsa_device_ops gswip_netdev_ops;
-
-/* tag_ksz.c */
-extern const struct dsa_device_ops ksz9477_netdev_ops;
-extern const struct dsa_device_ops ksz9893_netdev_ops;
-
-/* tag_lan9303.c */
-extern const struct dsa_device_ops lan9303_netdev_ops;
-
-/* tag_mtk.c */
-extern const struct dsa_device_ops mtk_netdev_ops;
-
-/* tag_qca.c */
-extern const struct dsa_device_ops qca_netdev_ops;
-
-/* tag_trailer.c */
-extern const struct dsa_device_ops trailer_netdev_ops;
-
#endif
diff --git a/net/dsa/legacy.c b/net/dsa/legacy.c
deleted file mode 100644
index cb42939db776..000000000000
--- a/net/dsa/legacy.c
+++ /dev/null
@@ -1,745 +0,0 @@
-/*
- * net/dsa/legacy.c - Hardware switch handling
- * Copyright (c) 2008-2009 Marvell Semiconductor
- * Copyright (c) 2013 Florian Fainelli <florian@openwrt.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#include <linux/device.h>
-#include <linux/list.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/of.h>
-#include <linux/of_mdio.h>
-#include <linux/of_platform.h>
-#include <linux/of_net.h>
-#include <linux/netdevice.h>
-#include <linux/sysfs.h>
-#include <linux/phy_fixed.h>
-#include <linux/etherdevice.h>
-
-#include "dsa_priv.h"
-
-/* switch driver registration ***********************************************/
-static DEFINE_MUTEX(dsa_switch_drivers_mutex);
-static LIST_HEAD(dsa_switch_drivers);
-
-void register_switch_driver(struct dsa_switch_driver *drv)
-{
- mutex_lock(&dsa_switch_drivers_mutex);
- list_add_tail(&drv->list, &dsa_switch_drivers);
- mutex_unlock(&dsa_switch_drivers_mutex);
-}
-EXPORT_SYMBOL_GPL(register_switch_driver);
-
-void unregister_switch_driver(struct dsa_switch_driver *drv)
-{
- mutex_lock(&dsa_switch_drivers_mutex);
- list_del_init(&drv->list);
- mutex_unlock(&dsa_switch_drivers_mutex);
-}
-EXPORT_SYMBOL_GPL(unregister_switch_driver);
-
-static const struct dsa_switch_ops *
-dsa_switch_probe(struct device *parent, struct device *host_dev, int sw_addr,
- const char **_name, void **priv)
-{
- const struct dsa_switch_ops *ret;
- struct list_head *list;
- const char *name;
-
- ret = NULL;
- name = NULL;
-
- mutex_lock(&dsa_switch_drivers_mutex);
- list_for_each(list, &dsa_switch_drivers) {
- const struct dsa_switch_ops *ops;
- struct dsa_switch_driver *drv;
-
- drv = list_entry(list, struct dsa_switch_driver, list);
- ops = drv->ops;
-
- name = ops->probe(parent, host_dev, sw_addr, priv);
- if (name != NULL) {
- ret = ops;
- break;
- }
- }
- mutex_unlock(&dsa_switch_drivers_mutex);
-
- *_name = name;
-
- return ret;
-}
-
-/* basic switch operations **************************************************/
-static int dsa_cpu_dsa_setups(struct dsa_switch *ds)
-{
- int ret, port;
-
- for (port = 0; port < ds->num_ports; port++) {
- if (!(dsa_is_cpu_port(ds, port) || dsa_is_dsa_port(ds, port)))
- continue;
-
- ret = dsa_port_link_register_of(&ds->ports[port]);
- if (ret)
- return ret;
- }
- return 0;
-}
-
-static int dsa_switch_setup_one(struct dsa_switch *ds,
- struct net_device *master)
-{
- const struct dsa_switch_ops *ops = ds->ops;
- struct dsa_switch_tree *dst = ds->dst;
- struct dsa_chip_data *cd = ds->cd;
- bool valid_name_found = false;
- int index = ds->index;
- struct dsa_port *dp;
- int i, ret;
-
- /*
- * Validate supplied switch configuration.
- */
- for (i = 0; i < ds->num_ports; i++) {
- char *name;
-
- dp = &ds->ports[i];
-
- name = cd->port_names[i];
- if (name == NULL)
- continue;
- dp->name = name;
-
- if (!strcmp(name, "cpu")) {
- if (dst->cpu_dp) {
- netdev_err(master,
- "multiple cpu ports?!\n");
- return -EINVAL;
- }
- dst->cpu_dp = &ds->ports[i];
- dst->cpu_dp->master = master;
- dp->type = DSA_PORT_TYPE_CPU;
- } else if (!strcmp(name, "dsa")) {
- dp->type = DSA_PORT_TYPE_DSA;
- } else {
- dp->type = DSA_PORT_TYPE_USER;
- }
- valid_name_found = true;
- }
-
- if (!valid_name_found && i == ds->num_ports)
- return -EINVAL;
-
- /* Make the built-in MII bus mask match the number of ports,
- * switch drivers can override this later
- */
- ds->phys_mii_mask |= dsa_user_ports(ds);
-
- /*
- * If the CPU connects to this switch, set the switch tree
- * tagging protocol to the preferred tagging format of this
- * switch.
- */
- if (dst->cpu_dp->ds == ds) {
- const struct dsa_device_ops *tag_ops;
- enum dsa_tag_protocol tag_protocol;
-
- tag_protocol = ops->get_tag_protocol(ds, dst->cpu_dp->index);
- tag_ops = dsa_resolve_tag_protocol(tag_protocol);
- if (IS_ERR(tag_ops))
- return PTR_ERR(tag_ops);
-
- dst->cpu_dp->tag_ops = tag_ops;
-
- /* Few copies for faster access in master receive hot path */
- dst->cpu_dp->rcv = dst->cpu_dp->tag_ops->rcv;
- dst->cpu_dp->dst = dst;
- }
-
- memcpy(ds->rtable, cd->rtable, sizeof(ds->rtable));
-
- /*
- * Do basic register setup.
- */
- ret = ops->setup(ds);
- if (ret < 0)
- return ret;
-
- ret = dsa_switch_register_notifier(ds);
- if (ret)
- return ret;
-
- if (!ds->slave_mii_bus && ops->phy_read) {
- ds->slave_mii_bus = devm_mdiobus_alloc(ds->dev);
- if (!ds->slave_mii_bus)
- return -ENOMEM;
- dsa_slave_mii_bus_init(ds);
-
- ret = mdiobus_register(ds->slave_mii_bus);
- if (ret < 0)
- return ret;
- }
-
- /*
- * Create network devices for physical switch ports.
- */
- for (i = 0; i < ds->num_ports; i++) {
- ds->ports[i].dn = cd->port_dn[i];
- ds->ports[i].cpu_dp = dst->cpu_dp;
-
- if (!dsa_is_user_port(ds, i))
- continue;
-
- ret = dsa_slave_create(&ds->ports[i]);
- if (ret < 0)
- netdev_err(master, "[%d]: can't create dsa slave device for port %d(%s): %d\n",
- index, i, cd->port_names[i], ret);
- }
-
- /* Perform configuration of the CPU and DSA ports */
- ret = dsa_cpu_dsa_setups(ds);
- if (ret < 0)
- netdev_err(master, "[%d] : can't configure CPU and DSA ports\n",
- index);
-
- return 0;
-}
-
-static struct dsa_switch *
-dsa_switch_setup(struct dsa_switch_tree *dst, struct net_device *master,
- int index, struct device *parent, struct device *host_dev)
-{
- struct dsa_chip_data *cd = dst->pd->chip + index;
- const struct dsa_switch_ops *ops;
- struct dsa_switch *ds;
- int ret;
- const char *name;
- void *priv;
-
- /*
- * Probe for switch model.
- */
- ops = dsa_switch_probe(parent, host_dev, cd->sw_addr, &name, &priv);
- if (!ops) {
- netdev_err(master, "[%d]: could not detect attached switch\n",
- index);
- return ERR_PTR(-EINVAL);
- }
- netdev_info(master, "[%d]: detected a %s switch\n",
- index, name);
-
-
- /*
- * Allocate and initialise switch state.
- */
- ds = dsa_switch_alloc(parent, DSA_MAX_PORTS);
- if (!ds)
- return ERR_PTR(-ENOMEM);
-
- ds->dst = dst;
- ds->index = index;
- ds->cd = cd;
- ds->ops = ops;
- ds->priv = priv;
-
- ret = dsa_switch_setup_one(ds, master);
- if (ret)
- return ERR_PTR(ret);
-
- return ds;
-}
-
-static void dsa_switch_destroy(struct dsa_switch *ds)
-{
- int port;
-
- /* Destroy network devices for physical switch ports. */
- for (port = 0; port < ds->num_ports; port++) {
- if (!dsa_is_user_port(ds, port))
- continue;
-
- if (!ds->ports[port].slave)
- continue;
-
- dsa_slave_destroy(ds->ports[port].slave);
- }
-
- /* Disable configuration of the CPU and DSA ports */
- for (port = 0; port < ds->num_ports; port++) {
- if (!(dsa_is_cpu_port(ds, port) || dsa_is_dsa_port(ds, port)))
- continue;
- dsa_port_link_unregister_of(&ds->ports[port]);
- }
-
- if (ds->slave_mii_bus && ds->ops->phy_read)
- mdiobus_unregister(ds->slave_mii_bus);
-
- dsa_switch_unregister_notifier(ds);
-}
-
-/* platform driver init and cleanup *****************************************/
-static int dev_is_class(struct device *dev, void *class)
-{
- if (dev->class != NULL && !strcmp(dev->class->name, class))
- return 1;
-
- return 0;
-}
-
-static struct device *dev_find_class(struct device *parent, char *class)
-{
- if (dev_is_class(parent, class)) {
- get_device(parent);
- return parent;
- }
-
- return device_find_child(parent, class, dev_is_class);
-}
-
-struct mii_bus *dsa_host_dev_to_mii_bus(struct device *dev)
-{
- struct device *d;
-
- d = dev_find_class(dev, "mdio_bus");
- if (d != NULL) {
- struct mii_bus *bus;
-
- bus = to_mii_bus(d);
- put_device(d);
-
- return bus;
- }
-
- return NULL;
-}
-EXPORT_SYMBOL_GPL(dsa_host_dev_to_mii_bus);
-
-#ifdef CONFIG_OF
-static int dsa_of_setup_routing_table(struct dsa_platform_data *pd,
- struct dsa_chip_data *cd,
- int chip_index, int port_index,
- struct device_node *link)
-{
- const __be32 *reg;
- int link_sw_addr;
- struct device_node *parent_sw;
- int len;
-
- parent_sw = of_get_parent(link);
- if (!parent_sw)
- return -EINVAL;
-
- reg = of_get_property(parent_sw, "reg", &len);
- if (!reg || (len != sizeof(*reg) * 2))
- return -EINVAL;
-
- /*
- * Get the destination switch number from the second field of its 'reg'
- * property, i.e. for "reg = <0x19 1>" sw_addr is '1'.
- */
- link_sw_addr = be32_to_cpup(reg + 1);
-
- if (link_sw_addr >= pd->nr_chips)
- return -EINVAL;
-
- cd->rtable[link_sw_addr] = port_index;
-
- return 0;
-}
-
-static int dsa_of_probe_links(struct dsa_platform_data *pd,
- struct dsa_chip_data *cd,
- int chip_index, int port_index,
- struct device_node *port,
- const char *port_name)
-{
- struct device_node *link;
- int link_index;
- int ret;
-
- for (link_index = 0;; link_index++) {
- link = of_parse_phandle(port, "link", link_index);
- if (!link)
- break;
-
- if (!strcmp(port_name, "dsa") && pd->nr_chips > 1) {
- ret = dsa_of_setup_routing_table(pd, cd, chip_index,
- port_index, link);
- if (ret)
- return ret;
- }
- }
- return 0;
-}
-
-static void dsa_of_free_platform_data(struct dsa_platform_data *pd)
-{
- int i;
- int port_index;
-
- for (i = 0; i < pd->nr_chips; i++) {
- port_index = 0;
- while (port_index < DSA_MAX_PORTS) {
- kfree(pd->chip[i].port_names[port_index]);
- port_index++;
- }
-
- /* Drop our reference to the MDIO bus device */
- put_device(pd->chip[i].host_dev);
- }
- kfree(pd->chip);
-}
-
-static int dsa_of_probe(struct device *dev)
-{
- struct device_node *np = dev->of_node;
- struct device_node *child, *mdio, *ethernet, *port;
- struct mii_bus *mdio_bus, *mdio_bus_switch;
- struct net_device *ethernet_dev;
- struct dsa_platform_data *pd;
- struct dsa_chip_data *cd;
- const char *port_name;
- int chip_index, port_index;
- const unsigned int *sw_addr, *port_reg;
- u32 eeprom_len;
- int ret;
-
- mdio = of_parse_phandle(np, "dsa,mii-bus", 0);
- if (!mdio)
- return -EINVAL;
-
- mdio_bus = of_mdio_find_bus(mdio);
- if (!mdio_bus)
- return -EPROBE_DEFER;
-
- ethernet = of_parse_phandle(np, "dsa,ethernet", 0);
- if (!ethernet) {
- ret = -EINVAL;
- goto out_put_mdio;
- }
-
- ethernet_dev = of_find_net_device_by_node(ethernet);
- if (!ethernet_dev) {
- ret = -EPROBE_DEFER;
- goto out_put_mdio;
- }
-
- pd = kzalloc(sizeof(*pd), GFP_KERNEL);
- if (!pd) {
- ret = -ENOMEM;
- goto out_put_ethernet;
- }
-
- dev->platform_data = pd;
- pd->of_netdev = ethernet_dev;
- pd->nr_chips = of_get_available_child_count(np);
- if (pd->nr_chips > DSA_MAX_SWITCHES)
- pd->nr_chips = DSA_MAX_SWITCHES;
-
- pd->chip = kcalloc(pd->nr_chips, sizeof(struct dsa_chip_data),
- GFP_KERNEL);
- if (!pd->chip) {
- ret = -ENOMEM;
- goto out_free;
- }
-
- chip_index = -1;
- for_each_available_child_of_node(np, child) {
- int i;
-
- chip_index++;
- cd = &pd->chip[chip_index];
-
- cd->of_node = child;
-
- /* Initialize the routing table */
- for (i = 0; i < DSA_MAX_SWITCHES; ++i)
- cd->rtable[i] = DSA_RTABLE_NONE;
-
- /* When assigning the host device, increment its refcount */
- cd->host_dev = get_device(&mdio_bus->dev);
-
- sw_addr = of_get_property(child, "reg", NULL);
- if (!sw_addr)
- continue;
-
- cd->sw_addr = be32_to_cpup(sw_addr);
- if (cd->sw_addr >= PHY_MAX_ADDR)
- continue;
-
- if (!of_property_read_u32(child, "eeprom-length", &eeprom_len))
- cd->eeprom_len = eeprom_len;
-
- mdio = of_parse_phandle(child, "mii-bus", 0);
- if (mdio) {
- mdio_bus_switch = of_mdio_find_bus(mdio);
- if (!mdio_bus_switch) {
- ret = -EPROBE_DEFER;
- goto out_free_chip;
- }
-
- /* Drop the mdio_bus device ref, replacing the host
- * device with the mdio_bus_switch device, keeping
- * the refcount from of_mdio_find_bus() above.
- */
- put_device(cd->host_dev);
- cd->host_dev = &mdio_bus_switch->dev;
- }
-
- for_each_available_child_of_node(child, port) {
- port_reg = of_get_property(port, "reg", NULL);
- if (!port_reg)
- continue;
-
- port_index = be32_to_cpup(port_reg);
- if (port_index >= DSA_MAX_PORTS)
- break;
-
- port_name = of_get_property(port, "label", NULL);
- if (!port_name)
- continue;
-
- cd->port_dn[port_index] = port;
-
- cd->port_names[port_index] = kstrdup(port_name,
- GFP_KERNEL);
- if (!cd->port_names[port_index]) {
- ret = -ENOMEM;
- goto out_free_chip;
- }
-
- ret = dsa_of_probe_links(pd, cd, chip_index,
- port_index, port, port_name);
- if (ret)
- goto out_free_chip;
-
- }
- }
-
- /* The individual chips hold their own refcount on the mdio bus,
- * so drop ours */
- put_device(&mdio_bus->dev);
-
- return 0;
-
-out_free_chip:
- dsa_of_free_platform_data(pd);
-out_free:
- kfree(pd);
- dev->platform_data = NULL;
-out_put_ethernet:
- put_device(&ethernet_dev->dev);
-out_put_mdio:
- put_device(&mdio_bus->dev);
- return ret;
-}
-
-static void dsa_of_remove(struct device *dev)
-{
- struct dsa_platform_data *pd = dev->platform_data;
-
- if (!dev->of_node)
- return;
-
- dsa_of_free_platform_data(pd);
- put_device(&pd->of_netdev->dev);
- kfree(pd);
-}
-#else
-static inline int dsa_of_probe(struct device *dev)
-{
- return 0;
-}
-
-static inline void dsa_of_remove(struct device *dev)
-{
-}
-#endif
-
-static int dsa_setup_dst(struct dsa_switch_tree *dst, struct net_device *dev,
- struct device *parent, struct dsa_platform_data *pd)
-{
- int i;
- unsigned configured = 0;
-
- dst->pd = pd;
-
- for (i = 0; i < pd->nr_chips; i++) {
- struct dsa_switch *ds;
-
- ds = dsa_switch_setup(dst, dev, i, parent, pd->chip[i].host_dev);
- if (IS_ERR(ds)) {
- netdev_err(dev, "[%d]: couldn't create dsa switch instance (error %ld)\n",
- i, PTR_ERR(ds));
- continue;
- }
-
- dst->ds[i] = ds;
-
- ++configured;
- }
-
- /*
- * If no switch was found, exit cleanly
- */
- if (!configured)
- return -EPROBE_DEFER;
-
- return dsa_master_setup(dst->cpu_dp->master, dst->cpu_dp);
-}
-
-static int dsa_probe(struct platform_device *pdev)
-{
- struct dsa_platform_data *pd = pdev->dev.platform_data;
- struct net_device *dev;
- struct dsa_switch_tree *dst;
- int ret;
-
- if (pdev->dev.of_node) {
- ret = dsa_of_probe(&pdev->dev);
- if (ret)
- return ret;
-
- pd = pdev->dev.platform_data;
- }
-
- if (pd == NULL || (pd->netdev == NULL && pd->of_netdev == NULL))
- return -EINVAL;
-
- if (pd->of_netdev) {
- dev = pd->of_netdev;
- dev_hold(dev);
- } else {
- dev = dsa_dev_to_net_device(pd->netdev);
- }
- if (dev == NULL) {
- ret = -EPROBE_DEFER;
- goto out;
- }
-
- if (dev->dsa_ptr != NULL) {
- dev_put(dev);
- ret = -EEXIST;
- goto out;
- }
-
- dst = devm_kzalloc(&pdev->dev, sizeof(*dst), GFP_KERNEL);
- if (dst == NULL) {
- dev_put(dev);
- ret = -ENOMEM;
- goto out;
- }
-
- platform_set_drvdata(pdev, dst);
-
- ret = dsa_setup_dst(dst, dev, &pdev->dev, pd);
- if (ret) {
- dev_put(dev);
- goto out;
- }
-
- return 0;
-
-out:
- dsa_of_remove(&pdev->dev);
-
- return ret;
-}
-
-static void dsa_remove_dst(struct dsa_switch_tree *dst)
-{
- int i;
-
- dsa_master_teardown(dst->cpu_dp->master);
-
- for (i = 0; i < dst->pd->nr_chips; i++) {
- struct dsa_switch *ds = dst->ds[i];
-
- if (ds)
- dsa_switch_destroy(ds);
- }
-
- dev_put(dst->cpu_dp->master);
-}
-
-static int dsa_remove(struct platform_device *pdev)
-{
- struct dsa_switch_tree *dst = platform_get_drvdata(pdev);
-
- dsa_remove_dst(dst);
- dsa_of_remove(&pdev->dev);
-
- return 0;
-}
-
-static void dsa_shutdown(struct platform_device *pdev)
-{
-}
-
-#ifdef CONFIG_PM_SLEEP
-static int dsa_suspend(struct device *d)
-{
- struct dsa_switch_tree *dst = dev_get_drvdata(d);
- int i, ret = 0;
-
- for (i = 0; i < dst->pd->nr_chips; i++) {
- struct dsa_switch *ds = dst->ds[i];
-
- if (ds != NULL)
- ret = dsa_switch_suspend(ds);
- }
-
- return ret;
-}
-
-static int dsa_resume(struct device *d)
-{
- struct dsa_switch_tree *dst = dev_get_drvdata(d);
- int i, ret = 0;
-
- for (i = 0; i < dst->pd->nr_chips; i++) {
- struct dsa_switch *ds = dst->ds[i];
-
- if (ds != NULL)
- ret = dsa_switch_resume(ds);
- }
-
- return ret;
-}
-#endif
-
-static SIMPLE_DEV_PM_OPS(dsa_pm_ops, dsa_suspend, dsa_resume);
-
-static const struct of_device_id dsa_of_match_table[] = {
- { .compatible = "marvell,dsa", },
- {}
-};
-MODULE_DEVICE_TABLE(of, dsa_of_match_table);
-
-static struct platform_driver dsa_driver = {
- .probe = dsa_probe,
- .remove = dsa_remove,
- .shutdown = dsa_shutdown,
- .driver = {
- .name = "dsa",
- .of_match_table = dsa_of_match_table,
- .pm = &dsa_pm_ops,
- },
-};
-
-int dsa_legacy_register(void)
-{
- return platform_driver_register(&dsa_driver);
-}
-
-void dsa_legacy_unregister(void)
-{
- platform_driver_unregister(&dsa_driver);
-}
diff --git a/net/dsa/port.c b/net/dsa/port.c
index caeef4c99dc0..ed8ba9daa3ba 100644
--- a/net/dsa/port.c
+++ b/net/dsa/port.c
@@ -154,19 +154,67 @@ void dsa_port_bridge_leave(struct dsa_port *dp, struct net_device *br)
dsa_port_set_state_now(dp, BR_STATE_FORWARDING);
}
+static bool dsa_port_can_apply_vlan_filtering(struct dsa_port *dp,
+ bool vlan_filtering)
+{
+ struct dsa_switch *ds = dp->ds;
+ int i;
+
+ if (!ds->vlan_filtering_is_global)
+ return true;
+
+ /* For cases where enabling/disabling VLAN awareness is global to the
+ * switch, we need to handle the case where multiple bridges span
+ * different ports of the same switch device and one of them has a
+ * different setting than what is being requested.
+ */
+ for (i = 0; i < ds->num_ports; i++) {
+ struct net_device *other_bridge;
+
+ other_bridge = dsa_to_port(ds, i)->bridge_dev;
+ if (!other_bridge)
+ continue;
+ /* If it's the same bridge, it also has same
+ * vlan_filtering setting => no need to check
+ */
+ if (other_bridge == dp->bridge_dev)
+ continue;
+ if (br_vlan_enabled(other_bridge) != vlan_filtering) {
+ dev_err(ds->dev, "VLAN filtering is a global setting\n");
+ return false;
+ }
+ }
+ return true;
+}
+
int dsa_port_vlan_filtering(struct dsa_port *dp, bool vlan_filtering,
struct switchdev_trans *trans)
{
struct dsa_switch *ds = dp->ds;
+ int err;
/* bridge skips -EOPNOTSUPP, so skip the prepare phase */
if (switchdev_trans_ph_prepare(trans))
return 0;
- if (ds->ops->port_vlan_filtering)
- return ds->ops->port_vlan_filtering(ds, dp->index,
- vlan_filtering);
+ if (!ds->ops->port_vlan_filtering)
+ return 0;
+
+ if (!dsa_port_can_apply_vlan_filtering(dp, vlan_filtering))
+ return -EINVAL;
+
+ if (dsa_port_is_vlan_filtering(dp) == vlan_filtering)
+ return 0;
+
+ err = ds->ops->port_vlan_filtering(ds, dp->index,
+ vlan_filtering);
+ if (err)
+ return err;
+ if (ds->vlan_filtering_is_global)
+ ds->vlan_filtering = vlan_filtering;
+ else
+ dp->vlan_filtering = vlan_filtering;
return 0;
}
@@ -322,6 +370,39 @@ int dsa_port_vlan_del(struct dsa_port *dp,
return 0;
}
+int dsa_port_vid_add(struct dsa_port *dp, u16 vid, u16 flags)
+{
+ struct switchdev_obj_port_vlan vlan = {
+ .obj.id = SWITCHDEV_OBJ_ID_PORT_VLAN,
+ .flags = flags,
+ .vid_begin = vid,
+ .vid_end = vid,
+ };
+ struct switchdev_trans trans;
+ int err;
+
+ trans.ph_prepare = true;
+ err = dsa_port_vlan_add(dp, &vlan, &trans);
+ if (err == -EOPNOTSUPP)
+ return 0;
+
+ trans.ph_prepare = false;
+ return dsa_port_vlan_add(dp, &vlan, &trans);
+}
+EXPORT_SYMBOL(dsa_port_vid_add);
+
+int dsa_port_vid_del(struct dsa_port *dp, u16 vid)
+{
+ struct switchdev_obj_port_vlan vlan = {
+ .obj.id = SWITCHDEV_OBJ_ID_PORT_VLAN,
+ .vid_begin = vid,
+ .vid_end = vid,
+ };
+
+ return dsa_port_vlan_del(dp, &vlan);
+}
+EXPORT_SYMBOL(dsa_port_vid_del);
+
static struct phy_device *dsa_port_get_phy_device(struct dsa_port *dp)
{
struct device_node *phy_dn;
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 093eef6f2599..fe7b6a62e8f1 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -120,6 +120,9 @@ static int dsa_slave_close(struct net_device *dev)
struct net_device *master = dsa_slave_to_master(dev);
struct dsa_port *dp = dsa_slave_to_port(dev);
+ cancel_work_sync(&dp->xmit_work);
+ skb_queue_purge(&dp->xmit_queue);
+
phylink_stop(dp->pl);
dsa_port_disable(dp);
@@ -379,6 +382,13 @@ static int dsa_slave_get_port_parent_id(struct net_device *dev,
struct dsa_switch *ds = dp->ds;
struct dsa_switch_tree *dst = ds->dst;
+ /* For non-legacy ports, devlink is used and it takes
+ * care of the name generation. This ndo implementation
+ * should be removed with legacy support.
+ */
+ if (dp->ds->devlink)
+ return -EOPNOTSUPP;
+
ppid->id_len = sizeof(dst->index);
memcpy(&ppid->id, &dst->index, ppid->id_len);
@@ -423,6 +433,24 @@ static void dsa_skb_tx_timestamp(struct dsa_slave_priv *p,
kfree_skb(clone);
}
+netdev_tx_t dsa_enqueue_skb(struct sk_buff *skb, struct net_device *dev)
+{
+ /* SKB for netpoll still need to be mangled with the protocol-specific
+ * tag to be successfully transmitted
+ */
+ if (unlikely(netpoll_tx_running(dev)))
+ return dsa_slave_netpoll_send_skb(dev, skb);
+
+ /* Queue the SKB for transmission on the parent interface, but
+ * do not modify its EtherType
+ */
+ skb->dev = dsa_slave_to_master(dev);
+ dev_queue_xmit(skb);
+
+ return NETDEV_TX_OK;
+}
+EXPORT_SYMBOL_GPL(dsa_enqueue_skb);
+
static netdev_tx_t dsa_slave_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct dsa_slave_priv *p = netdev_priv(dev);
@@ -445,23 +473,37 @@ static netdev_tx_t dsa_slave_xmit(struct sk_buff *skb, struct net_device *dev)
*/
nskb = p->xmit(skb, dev);
if (!nskb) {
- kfree_skb(skb);
+ if (!DSA_SKB_CB(skb)->deferred_xmit)
+ kfree_skb(skb);
return NETDEV_TX_OK;
}
- /* SKB for netpoll still need to be mangled with the protocol-specific
- * tag to be successfully transmitted
- */
- if (unlikely(netpoll_tx_running(dev)))
- return dsa_slave_netpoll_send_skb(dev, nskb);
+ return dsa_enqueue_skb(nskb, dev);
+}
- /* Queue the SKB for transmission on the parent interface, but
- * do not modify its EtherType
- */
- nskb->dev = dsa_slave_to_master(dev);
- dev_queue_xmit(nskb);
+void *dsa_defer_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct dsa_port *dp = dsa_slave_to_port(dev);
- return NETDEV_TX_OK;
+ DSA_SKB_CB(skb)->deferred_xmit = true;
+
+ skb_queue_tail(&dp->xmit_queue, skb);
+ schedule_work(&dp->xmit_work);
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(dsa_defer_xmit);
+
+static void dsa_port_xmit_work(struct work_struct *work)
+{
+ struct dsa_port *dp = container_of(work, struct dsa_port, xmit_work);
+ struct dsa_switch *ds = dp->ds;
+ struct sk_buff *skb;
+
+ if (unlikely(!ds->ops->port_deferred_xmit))
+ return;
+
+ while ((skb = skb_dequeue(&dp->xmit_queue)) != NULL)
+ ds->ops->port_deferred_xmit(ds, dp->index, skb);
}
/* ethtool operations *******************************************************/
@@ -736,6 +778,13 @@ static int dsa_slave_get_phys_port_name(struct net_device *dev,
{
struct dsa_port *dp = dsa_slave_to_port(dev);
+ /* For non-legacy ports, devlink is used and it takes
+ * care of the name generation. This ndo implementation
+ * should be removed with legacy support.
+ */
+ if (dp->ds->devlink)
+ return -EOPNOTSUPP;
+
if (snprintf(name, len, "p%d", dp->index) >= len)
return -EINVAL;
@@ -764,27 +813,25 @@ static int dsa_slave_add_cls_matchall(struct net_device *dev,
struct dsa_mall_tc_entry *mall_tc_entry;
__be16 protocol = cls->common.protocol;
struct dsa_switch *ds = dp->ds;
- struct net_device *to_dev;
- const struct tc_action *a;
+ struct flow_action_entry *act;
struct dsa_port *to_dp;
int err = -EOPNOTSUPP;
if (!ds->ops->port_mirror_add)
return err;
- if (!tcf_exts_has_one_action(cls->exts))
+ if (!flow_offload_has_one_action(&cls->rule->action))
return err;
- a = tcf_exts_first_action(cls->exts);
+ act = &cls->rule->action.entries[0];
- if (is_tcf_mirred_egress_mirror(a) && protocol == htons(ETH_P_ALL)) {
+ if (act->id == FLOW_ACTION_MIRRED && protocol == htons(ETH_P_ALL)) {
struct dsa_mall_mirror_tc_entry *mirror;
- to_dev = tcf_mirred_dev(a);
- if (!to_dev)
+ if (!act->dev)
return -EINVAL;
- if (!dsa_slave_dev_check(to_dev))
+ if (!dsa_slave_dev_check(act->dev))
return -EOPNOTSUPP;
mall_tc_entry = kzalloc(sizeof(*mall_tc_entry), GFP_KERNEL);
@@ -795,7 +842,7 @@ static int dsa_slave_add_cls_matchall(struct net_device *dev,
mall_tc_entry->type = DSA_PORT_MALL_MIRROR;
mirror = &mall_tc_entry->mirror;
- to_dp = dsa_slave_to_port(to_dev);
+ to_dp = dsa_slave_to_port(act->dev);
mirror->to_local_port = to_dp->index;
mirror->ingress = ingress;
@@ -987,13 +1034,6 @@ static int dsa_slave_vlan_rx_add_vid(struct net_device *dev, __be16 proto,
u16 vid)
{
struct dsa_port *dp = dsa_slave_to_port(dev);
- struct switchdev_obj_port_vlan vlan = {
- .vid_begin = vid,
- .vid_end = vid,
- /* This API only allows programming tagged, non-PVID VIDs */
- .flags = 0,
- };
- struct switchdev_trans trans;
struct bridge_vlan_info info;
int ret;
@@ -1010,25 +1050,14 @@ static int dsa_slave_vlan_rx_add_vid(struct net_device *dev, __be16 proto,
return -EBUSY;
}
- trans.ph_prepare = true;
- ret = dsa_port_vlan_add(dp, &vlan, &trans);
- if (ret == -EOPNOTSUPP)
- return 0;
-
- trans.ph_prepare = false;
- return dsa_port_vlan_add(dp, &vlan, &trans);
+ /* This API only allows programming tagged, non-PVID VIDs */
+ return dsa_port_vid_add(dp, vid, 0);
}
static int dsa_slave_vlan_rx_kill_vid(struct net_device *dev, __be16 proto,
u16 vid)
{
struct dsa_port *dp = dsa_slave_to_port(dev);
- struct switchdev_obj_port_vlan vlan = {
- .vid_begin = vid,
- .vid_end = vid,
- /* This API only allows programming tagged, non-PVID VIDs */
- .flags = 0,
- };
struct bridge_vlan_info info;
int ret;
@@ -1045,7 +1074,7 @@ static int dsa_slave_vlan_rx_kill_vid(struct net_device *dev, __be16 proto,
return -EBUSY;
}
- ret = dsa_port_vlan_del(dp, &vlan);
+ ret = dsa_port_vid_del(dp, vid);
if (ret == -EOPNOTSUPP)
ret = 0;
@@ -1096,6 +1125,13 @@ int dsa_legacy_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
return dsa_port_fdb_del(dp, addr, vid);
}
+static struct devlink_port *dsa_slave_get_devlink_port(struct net_device *dev)
+{
+ struct dsa_port *dp = dsa_slave_to_port(dev);
+
+ return dp->ds->devlink ? &dp->devlink_port : NULL;
+}
+
static const struct net_device_ops dsa_slave_netdev_ops = {
.ndo_open = dsa_slave_open,
.ndo_stop = dsa_slave_close,
@@ -1119,6 +1155,7 @@ static const struct net_device_ops dsa_slave_netdev_ops = {
.ndo_get_port_parent_id = dsa_slave_get_port_parent_id,
.ndo_vlan_rx_add_vid = dsa_slave_vlan_rx_add_vid,
.ndo_vlan_rx_kill_vid = dsa_slave_vlan_rx_kill_vid,
+ .ndo_get_devlink_port = dsa_slave_get_devlink_port,
};
static struct device_type dsa_type = {
@@ -1283,9 +1320,9 @@ static int dsa_slave_phy_setup(struct net_device *slave_dev)
phy_flags = ds->ops->get_phy_flags(ds, dp->index);
ret = phylink_of_phy_connect(dp->pl, port_dn, phy_flags);
- if (ret == -ENODEV) {
- /* We could not connect to a designated PHY or SFP, so use the
- * switch internal MDIO bus instead
+ if (ret == -ENODEV && ds->slave_mii_bus) {
+ /* We could not connect to a designated PHY or SFP, so try to
+ * use the switch internal MDIO bus instead
*/
ret = dsa_slave_phy_connect(slave_dev, dp->index);
if (ret) {
@@ -1297,7 +1334,7 @@ static int dsa_slave_phy_setup(struct net_device *slave_dev)
}
}
- return 0;
+ return ret;
}
static struct lock_class_key dsa_slave_netdev_xmit_lock_key;
@@ -1316,6 +1353,9 @@ int dsa_slave_suspend(struct net_device *slave_dev)
if (!netif_running(slave_dev))
return 0;
+ cancel_work_sync(&dp->xmit_work);
+ skb_queue_purge(&dp->xmit_queue);
+
netif_device_detach(slave_dev);
rtnl_lock();
@@ -1378,7 +1418,10 @@ int dsa_slave_create(struct dsa_port *port)
NETIF_F_HW_VLAN_CTAG_FILTER;
slave_dev->hw_features |= NETIF_F_HW_TC;
slave_dev->ethtool_ops = &dsa_slave_ethtool_ops;
- eth_hw_addr_inherit(slave_dev, master);
+ if (!IS_ERR_OR_NULL(port->mac))
+ ether_addr_copy(slave_dev->dev_addr, port->mac);
+ else
+ eth_hw_addr_inherit(slave_dev, master);
slave_dev->priv_flags |= IFF_NO_QUEUE;
slave_dev->netdev_ops = &dsa_slave_netdev_ops;
slave_dev->min_mtu = 0;
@@ -1400,6 +1443,8 @@ int dsa_slave_create(struct dsa_port *port)
}
p->dp = port;
INIT_LIST_HEAD(&p->mall_tc_list);
+ INIT_WORK(&port->xmit_work, dsa_port_xmit_work);
+ skb_queue_head_init(&port->xmit_queue);
p->xmit = cpu_dp->tag_ops->xmit;
port->slave = slave_dev;
diff --git a/net/dsa/switch.c b/net/dsa/switch.c
index e1fae969aa73..7d8cd9bc0ecc 100644
--- a/net/dsa/switch.c
+++ b/net/dsa/switch.c
@@ -10,6 +10,7 @@
* (at your option) any later version.
*/
+#include <linux/if_bridge.h>
#include <linux/netdevice.h>
#include <linux/notifier.h>
#include <linux/if_vlan.h>
@@ -71,6 +72,9 @@ static int dsa_switch_bridge_join(struct dsa_switch *ds,
static int dsa_switch_bridge_leave(struct dsa_switch *ds,
struct dsa_notifier_bridge_info *info)
{
+ bool unset_vlan_filtering = br_vlan_enabled(info->br);
+ int err, i;
+
if (ds->index == info->sw_index && ds->ops->port_bridge_leave)
ds->ops->port_bridge_leave(ds, info->port, info->br);
@@ -78,6 +82,31 @@ static int dsa_switch_bridge_leave(struct dsa_switch *ds,
ds->ops->crosschip_bridge_leave(ds, info->sw_index, info->port,
info->br);
+ /* If the bridge was vlan_filtering, the bridge core doesn't trigger an
+ * event for changing vlan_filtering setting upon slave ports leaving
+ * it. That is a good thing, because that lets us handle it and also
+ * handle the case where the switch's vlan_filtering setting is global
+ * (not per port). When that happens, the correct moment to trigger the
+ * vlan_filtering callback is only when the last port left this bridge.
+ */
+ if (unset_vlan_filtering && ds->vlan_filtering_is_global) {
+ for (i = 0; i < ds->num_ports; i++) {
+ if (i == info->port)
+ continue;
+ if (dsa_to_port(ds, i)->bridge_dev == info->br) {
+ unset_vlan_filtering = false;
+ break;
+ }
+ }
+ }
+ if (unset_vlan_filtering) {
+ struct switchdev_trans trans = {0};
+
+ err = dsa_port_vlan_filtering(&ds->ports[info->port],
+ false, &trans);
+ if (err && err != EOPNOTSUPP)
+ return err;
+ }
return 0;
}
@@ -196,7 +225,7 @@ static int dsa_port_vlan_check(struct dsa_switch *ds, int port,
if (!dp->bridge_dev)
return err;
- /* dsa_slave_vlan_rx_{add,kill}_vid() cannot use the prepare pharse and
+ /* dsa_slave_vlan_rx_{add,kill}_vid() cannot use the prepare phase and
* already checks whether there is an overlapping bridge VLAN entry
* with the same VID, so here we only need to check that if we are
* adding a bridge VLAN entry there is not an overlapping VLAN device
diff --git a/net/dsa/tag_8021q.c b/net/dsa/tag_8021q.c
new file mode 100644
index 000000000000..8ae48c7e1e76
--- /dev/null
+++ b/net/dsa/tag_8021q.c
@@ -0,0 +1,222 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019, Vladimir Oltean <olteanv@gmail.com>
+ *
+ * This module is not a complete tagger implementation. It only provides
+ * primitives for taggers that rely on 802.1Q VLAN tags to use. The
+ * dsa_8021q_netdev_ops is registered for API compliance and not used
+ * directly by callers.
+ */
+#include <linux/if_bridge.h>
+#include <linux/if_vlan.h>
+
+#include "dsa_priv.h"
+
+/* Allocating two VLAN tags per port - one for the RX VID and
+ * the other for the TX VID - see below
+ */
+#define DSA_8021Q_VID_RANGE (DSA_MAX_SWITCHES * DSA_MAX_PORTS)
+#define DSA_8021Q_VID_BASE (VLAN_N_VID - 2 * DSA_8021Q_VID_RANGE - 1)
+#define DSA_8021Q_RX_VID_BASE (DSA_8021Q_VID_BASE)
+#define DSA_8021Q_TX_VID_BASE (DSA_8021Q_VID_BASE + DSA_8021Q_VID_RANGE)
+
+/* Returns the VID to be inserted into the frame from xmit for switch steering
+ * instructions on egress. Encodes switch ID and port ID.
+ */
+u16 dsa_8021q_tx_vid(struct dsa_switch *ds, int port)
+{
+ return DSA_8021Q_TX_VID_BASE + (DSA_MAX_PORTS * ds->index) + port;
+}
+EXPORT_SYMBOL_GPL(dsa_8021q_tx_vid);
+
+/* Returns the VID that will be installed as pvid for this switch port, sent as
+ * tagged egress towards the CPU port and decoded by the rcv function.
+ */
+u16 dsa_8021q_rx_vid(struct dsa_switch *ds, int port)
+{
+ return DSA_8021Q_RX_VID_BASE + (DSA_MAX_PORTS * ds->index) + port;
+}
+EXPORT_SYMBOL_GPL(dsa_8021q_rx_vid);
+
+/* Returns the decoded switch ID from the RX VID. */
+int dsa_8021q_rx_switch_id(u16 vid)
+{
+ return ((vid - DSA_8021Q_RX_VID_BASE) / DSA_MAX_PORTS);
+}
+EXPORT_SYMBOL_GPL(dsa_8021q_rx_switch_id);
+
+/* Returns the decoded port ID from the RX VID. */
+int dsa_8021q_rx_source_port(u16 vid)
+{
+ return ((vid - DSA_8021Q_RX_VID_BASE) % DSA_MAX_PORTS);
+}
+EXPORT_SYMBOL_GPL(dsa_8021q_rx_source_port);
+
+/* RX VLAN tagging (left) and TX VLAN tagging (right) setup shown for a single
+ * front-panel switch port (here swp0).
+ *
+ * Port identification through VLAN (802.1Q) tags has different requirements
+ * for it to work effectively:
+ * - On RX (ingress from network): each front-panel port must have a pvid
+ * that uniquely identifies it, and the egress of this pvid must be tagged
+ * towards the CPU port, so that software can recover the source port based
+ * on the VID in the frame. But this would only work for standalone ports;
+ * if bridged, this VLAN setup would break autonomous forwarding and would
+ * force all switched traffic to pass through the CPU. So we must also make
+ * the other front-panel ports members of this VID we're adding, albeit
+ * we're not making it their PVID (they'll still have their own).
+ * By the way - just because we're installing the same VID in multiple
+ * switch ports doesn't mean that they'll start to talk to one another, even
+ * while not bridged: the final forwarding decision is still an AND between
+ * the L2 forwarding information (which is limiting forwarding in this case)
+ * and the VLAN-based restrictions (of which there are none in this case,
+ * since all ports are members).
+ * - On TX (ingress from CPU and towards network) we are faced with a problem.
+ * If we were to tag traffic (from within DSA) with the port's pvid, all
+ * would be well, assuming the switch ports were standalone. Frames would
+ * have no choice but to be directed towards the correct front-panel port.
+ * But because we also want the RX VLAN to not break bridging, then
+ * inevitably that means that we have to give them a choice (of what
+ * front-panel port to go out on), and therefore we cannot steer traffic
+ * based on the RX VID. So what we do is simply install one more VID on the
+ * front-panel and CPU ports, and profit off of the fact that steering will
+ * work just by virtue of the fact that there is only one other port that's
+ * a member of the VID we're tagging the traffic with - the desired one.
+ *
+ * So at the end, each front-panel port will have one RX VID (also the PVID),
+ * the RX VID of all other front-panel ports, and one TX VID. Whereas the CPU
+ * port will have the RX and TX VIDs of all front-panel ports, and on top of
+ * that, is also tagged-input and tagged-output (VLAN trunk).
+ *
+ * CPU port CPU port
+ * +-------------+-----+-------------+ +-------------+-----+-------------+
+ * | RX VID | | | | TX VID | | |
+ * | of swp0 | | | | of swp0 | | |
+ * | +-----+ | | +-----+ |
+ * | ^ T | | | Tagged |
+ * | | | | | ingress |
+ * | +-------+---+---+-------+ | | +-----------+ |
+ * | | | | | | | | Untagged |
+ * | | U v U v U v | | v egress |
+ * | +-----+ +-----+ +-----+ +-----+ | | +-----+ +-----+ +-----+ +-----+ |
+ * | | | | | | | | | | | | | | | | | | | |
+ * | |PVID | | | | | | | | | | | | | | | | | |
+ * +-+-----+-+-----+-+-----+-+-----+-+ +-+-----+-+-----+-+-----+-+-----+-+
+ * swp0 swp1 swp2 swp3 swp0 swp1 swp2 swp3
+ */
+int dsa_port_setup_8021q_tagging(struct dsa_switch *ds, int port, bool enabled)
+{
+ int upstream = dsa_upstream_port(ds, port);
+ struct dsa_port *dp = &ds->ports[port];
+ struct dsa_port *upstream_dp = &ds->ports[upstream];
+ u16 rx_vid = dsa_8021q_rx_vid(ds, port);
+ u16 tx_vid = dsa_8021q_tx_vid(ds, port);
+ int i, err;
+
+ /* The CPU port is implicitly configured by
+ * configuring the front-panel ports
+ */
+ if (!dsa_is_user_port(ds, port))
+ return 0;
+
+ /* Add this user port's RX VID to the membership list of all others
+ * (including itself). This is so that bridging will not be hindered.
+ * L2 forwarding rules still take precedence when there are no VLAN
+ * restrictions, so there are no concerns about leaking traffic.
+ */
+ for (i = 0; i < ds->num_ports; i++) {
+ struct dsa_port *other_dp = &ds->ports[i];
+ u16 flags;
+
+ if (i == upstream)
+ /* CPU port needs to see this port's RX VID
+ * as tagged egress.
+ */
+ flags = 0;
+ else if (i == port)
+ /* The RX VID is pvid on this port */
+ flags = BRIDGE_VLAN_INFO_UNTAGGED |
+ BRIDGE_VLAN_INFO_PVID;
+ else
+ /* The RX VID is a regular VLAN on all others */
+ flags = BRIDGE_VLAN_INFO_UNTAGGED;
+
+ if (enabled)
+ err = dsa_port_vid_add(other_dp, rx_vid, flags);
+ else
+ err = dsa_port_vid_del(other_dp, rx_vid);
+ if (err) {
+ dev_err(ds->dev, "Failed to apply RX VID %d to port %d: %d\n",
+ rx_vid, port, err);
+ return err;
+ }
+ }
+ /* Finally apply the TX VID on this port and on the CPU port */
+ if (enabled)
+ err = dsa_port_vid_add(dp, tx_vid, BRIDGE_VLAN_INFO_UNTAGGED);
+ else
+ err = dsa_port_vid_del(dp, tx_vid);
+ if (err) {
+ dev_err(ds->dev, "Failed to apply TX VID %d on port %d: %d\n",
+ tx_vid, port, err);
+ return err;
+ }
+ if (enabled)
+ err = dsa_port_vid_add(upstream_dp, tx_vid, 0);
+ else
+ err = dsa_port_vid_del(upstream_dp, tx_vid);
+ if (err) {
+ dev_err(ds->dev, "Failed to apply TX VID %d on port %d: %d\n",
+ tx_vid, upstream, err);
+ return err;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(dsa_port_setup_8021q_tagging);
+
+struct sk_buff *dsa_8021q_xmit(struct sk_buff *skb, struct net_device *netdev,
+ u16 tpid, u16 tci)
+{
+ /* skb->data points at skb_mac_header, which
+ * is fine for vlan_insert_tag.
+ */
+ return vlan_insert_tag(skb, htons(tpid), tci);
+}
+EXPORT_SYMBOL_GPL(dsa_8021q_xmit);
+
+struct sk_buff *dsa_8021q_rcv(struct sk_buff *skb, struct net_device *netdev,
+ struct packet_type *pt, u16 *tpid, u16 *tci)
+{
+ struct vlan_ethhdr *tag;
+
+ if (unlikely(!pskb_may_pull(skb, VLAN_HLEN)))
+ return NULL;
+
+ tag = vlan_eth_hdr(skb);
+ *tpid = ntohs(tag->h_vlan_proto);
+ *tci = ntohs(tag->h_vlan_TCI);
+
+ /* skb->data points in the middle of the VLAN tag,
+ * after tpid and before tci. This is because so far,
+ * ETH_HLEN (DMAC, SMAC, EtherType) bytes were pulled.
+ * There are 2 bytes of VLAN tag left in skb->data, and upper
+ * layers expect the 'real' EtherType to be consumed as well.
+ * Coincidentally, a VLAN header is also of the same size as
+ * the number of bytes that need to be pulled.
+ */
+ skb_pull_rcsum(skb, VLAN_HLEN);
+
+ return skb;
+}
+EXPORT_SYMBOL_GPL(dsa_8021q_rcv);
+
+static const struct dsa_device_ops dsa_8021q_netdev_ops = {
+ .name = "8021q",
+ .proto = DSA_TAG_PROTO_8021Q,
+ .overhead = VLAN_HLEN,
+};
+
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_8021Q);
+
+module_dsa_tag_driver(dsa_8021q_netdev_ops);
diff --git a/net/dsa/tag_brcm.c b/net/dsa/tag_brcm.c
index 4aa1d368a5ae..d52db5f2c721 100644
--- a/net/dsa/tag_brcm.c
+++ b/net/dsa/tag_brcm.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
/*
* Broadcom tag support
*
* Copyright (C) 2014 Broadcom Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
*/
#include <linux/etherdevice.h>
@@ -59,6 +55,9 @@
#define BRCM_EG_TC_MASK 0x7
#define BRCM_EG_PID_MASK 0x1f
+#if IS_ENABLED(CONFIG_NET_DSA_TAG_BRCM) || \
+ IS_ENABLED(CONFIG_NET_DSA_TAG_BRCM_PREPEND)
+
static struct sk_buff *brcm_tag_xmit_ll(struct sk_buff *skb,
struct net_device *dev,
unsigned int offset)
@@ -143,8 +142,9 @@ static struct sk_buff *brcm_tag_rcv_ll(struct sk_buff *skb,
return skb;
}
+#endif
-#ifdef CONFIG_NET_DSA_TAG_BRCM
+#if IS_ENABLED(CONFIG_NET_DSA_TAG_BRCM)
static struct sk_buff *brcm_tag_xmit(struct sk_buff *skb,
struct net_device *dev)
{
@@ -171,14 +171,19 @@ static struct sk_buff *brcm_tag_rcv(struct sk_buff *skb, struct net_device *dev,
return nskb;
}
-const struct dsa_device_ops brcm_netdev_ops = {
+static const struct dsa_device_ops brcm_netdev_ops = {
+ .name = "brcm",
+ .proto = DSA_TAG_PROTO_BRCM,
.xmit = brcm_tag_xmit,
.rcv = brcm_tag_rcv,
.overhead = BRCM_TAG_LEN,
};
+
+DSA_TAG_DRIVER(brcm_netdev_ops);
+MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_BRCM);
#endif
-#ifdef CONFIG_NET_DSA_TAG_BRCM_PREPEND
+#if IS_ENABLED(CONFIG_NET_DSA_TAG_BRCM_PREPEND)
static struct sk_buff *brcm_tag_xmit_prepend(struct sk_buff *skb,
struct net_device *dev)
{
@@ -194,9 +199,27 @@ static struct sk_buff *brcm_tag_rcv_prepend(struct sk_buff *skb,
return brcm_tag_rcv_ll(skb, dev, pt, ETH_HLEN);
}
-const struct dsa_device_ops brcm_prepend_netdev_ops = {
+static const struct dsa_device_ops brcm_prepend_netdev_ops = {
+ .name = "brcm-prepend",
+ .proto = DSA_TAG_PROTO_BRCM_PREPEND,
.xmit = brcm_tag_xmit_prepend,
.rcv = brcm_tag_rcv_prepend,
.overhead = BRCM_TAG_LEN,
};
#endif
+
+DSA_TAG_DRIVER(brcm_prepend_netdev_ops);
+MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_BRCM_PREPEND);
+
+static struct dsa_tag_driver *dsa_tag_driver_array[] = {
+#if IS_ENABLED(CONFIG_NET_DSA_TAG_BRCM)
+ &DSA_TAG_DRIVER_NAME(brcm_netdev_ops),
+#endif
+#if IS_ENABLED(CONFIG_NET_DSA_TAG_BRCM_PREPEND)
+ &DSA_TAG_DRIVER_NAME(brcm_prepend_netdev_ops),
+#endif
+};
+
+module_dsa_tag_drivers(dsa_tag_driver_array);
+
+MODULE_LICENSE("GPL");
diff --git a/net/dsa/tag_dsa.c b/net/dsa/tag_dsa.c
index 67ff3fae18d8..7ddec9794477 100644
--- a/net/dsa/tag_dsa.c
+++ b/net/dsa/tag_dsa.c
@@ -1,11 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
/*
* net/dsa/tag_dsa.c - (Non-ethertype) DSA tagging
* Copyright (c) 2008-2009 Marvell Semiconductor
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
*/
#include <linux/etherdevice.h>
@@ -154,9 +150,16 @@ static int dsa_tag_flow_dissect(const struct sk_buff *skb, __be16 *proto,
return 0;
}
-const struct dsa_device_ops dsa_netdev_ops = {
+static const struct dsa_device_ops dsa_netdev_ops = {
+ .name = "dsa",
+ .proto = DSA_TAG_PROTO_DSA,
.xmit = dsa_xmit,
.rcv = dsa_rcv,
.flow_dissect = dsa_tag_flow_dissect,
.overhead = DSA_HLEN,
};
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_DSA);
+
+module_dsa_tag_driver(dsa_netdev_ops);
diff --git a/net/dsa/tag_edsa.c b/net/dsa/tag_edsa.c
index 234585ec116e..e8eaa804ccb9 100644
--- a/net/dsa/tag_edsa.c
+++ b/net/dsa/tag_edsa.c
@@ -1,11 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
/*
* net/dsa/tag_edsa.c - Ethertype DSA tagging
* Copyright (c) 2008-2009 Marvell Semiconductor
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
*/
#include <linux/etherdevice.h>
@@ -173,9 +169,16 @@ static int edsa_tag_flow_dissect(const struct sk_buff *skb, __be16 *proto,
return 0;
}
-const struct dsa_device_ops edsa_netdev_ops = {
+static const struct dsa_device_ops edsa_netdev_ops = {
+ .name = "edsa",
+ .proto = DSA_TAG_PROTO_EDSA,
.xmit = edsa_xmit,
.rcv = edsa_rcv,
.flow_dissect = edsa_tag_flow_dissect,
.overhead = EDSA_HLEN,
};
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_EDSA);
+
+module_dsa_tag_driver(edsa_netdev_ops);
diff --git a/net/dsa/tag_gswip.c b/net/dsa/tag_gswip.c
index cb6f82ffe5eb..b678160bbd66 100644
--- a/net/dsa/tag_gswip.c
+++ b/net/dsa/tag_gswip.c
@@ -103,8 +103,15 @@ static struct sk_buff *gswip_tag_rcv(struct sk_buff *skb,
return skb;
}
-const struct dsa_device_ops gswip_netdev_ops = {
+static const struct dsa_device_ops gswip_netdev_ops = {
+ .name = "gwsip",
+ .proto = DSA_TAG_PROTO_GSWIP,
.xmit = gswip_tag_xmit,
.rcv = gswip_tag_rcv,
.overhead = GSWIP_RX_HEADER_LEN,
};
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_GSWIP);
+
+module_dsa_tag_driver(gswip_netdev_ops);
diff --git a/net/dsa/tag_ksz.c b/net/dsa/tag_ksz.c
index de246c93d3bb..b4872b87d4a6 100644
--- a/net/dsa/tag_ksz.c
+++ b/net/dsa/tag_ksz.c
@@ -1,11 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
/*
* net/dsa/tag_ksz.c - Microchip KSZ Switch tag format handling
* Copyright (c) 2017 Microchip Technology
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
*/
#include <linux/etherdevice.h>
@@ -137,12 +133,17 @@ static struct sk_buff *ksz9477_rcv(struct sk_buff *skb, struct net_device *dev,
return ksz_common_rcv(skb, dev, port, len);
}
-const struct dsa_device_ops ksz9477_netdev_ops = {
+static const struct dsa_device_ops ksz9477_netdev_ops = {
+ .name = "ksz9477",
+ .proto = DSA_TAG_PROTO_KSZ9477,
.xmit = ksz9477_xmit,
.rcv = ksz9477_rcv,
.overhead = KSZ9477_INGRESS_TAG_LEN,
};
+DSA_TAG_DRIVER(ksz9477_netdev_ops);
+MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_KSZ9477);
+
#define KSZ9893_TAIL_TAG_OVERRIDE BIT(5)
#define KSZ9893_TAIL_TAG_LOOKUP BIT(6)
@@ -170,8 +171,22 @@ static struct sk_buff *ksz9893_xmit(struct sk_buff *skb,
return nskb;
}
-const struct dsa_device_ops ksz9893_netdev_ops = {
+static const struct dsa_device_ops ksz9893_netdev_ops = {
+ .name = "ksz9893",
+ .proto = DSA_TAG_PROTO_KSZ9893,
.xmit = ksz9893_xmit,
.rcv = ksz9477_rcv,
.overhead = KSZ_INGRESS_TAG_LEN,
};
+
+DSA_TAG_DRIVER(ksz9893_netdev_ops);
+MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_KSZ9893);
+
+static struct dsa_tag_driver *dsa_tag_driver_array[] = {
+ &DSA_TAG_DRIVER_NAME(ksz9477_netdev_ops),
+ &DSA_TAG_DRIVER_NAME(ksz9893_netdev_ops),
+};
+
+module_dsa_tag_drivers(dsa_tag_driver_array);
+
+MODULE_LICENSE("GPL");
diff --git a/net/dsa/tag_lan9303.c b/net/dsa/tag_lan9303.c
index f48889e46ff7..eb0e7a32e53d 100644
--- a/net/dsa/tag_lan9303.c
+++ b/net/dsa/tag_lan9303.c
@@ -1,15 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2017 Pengutronix, Juergen Borleis <jbe@pengutronix.de>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
*/
#include <linux/dsa/lan9303.h>
#include <linux/etherdevice.h>
@@ -137,8 +128,15 @@ static struct sk_buff *lan9303_rcv(struct sk_buff *skb, struct net_device *dev,
return skb;
}
-const struct dsa_device_ops lan9303_netdev_ops = {
+static const struct dsa_device_ops lan9303_netdev_ops = {
+ .name = "lan9303",
+ .proto = DSA_TAG_PROTO_LAN9303,
.xmit = lan9303_xmit,
.rcv = lan9303_rcv,
.overhead = LAN9303_TAG_LEN,
};
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_LAN9303);
+
+module_dsa_tag_driver(lan9303_netdev_ops);
diff --git a/net/dsa/tag_mtk.c b/net/dsa/tag_mtk.c
index f39f4dfeda34..b5705cba8318 100644
--- a/net/dsa/tag_mtk.c
+++ b/net/dsa/tag_mtk.c
@@ -1,15 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Mediatek DSA Tag support
* Copyright (C) 2017 Landen Chao <landen.chao@mediatek.com>
* Sean Wang <sean.wang@mediatek.com>
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
*/
#include <linux/etherdevice.h>
@@ -105,9 +98,16 @@ static int mtk_tag_flow_dissect(const struct sk_buff *skb, __be16 *proto,
return 0;
}
-const struct dsa_device_ops mtk_netdev_ops = {
+static const struct dsa_device_ops mtk_netdev_ops = {
+ .name = "mtk",
+ .proto = DSA_TAG_PROTO_MTK,
.xmit = mtk_tag_xmit,
.rcv = mtk_tag_rcv,
.flow_dissect = mtk_tag_flow_dissect,
.overhead = MTK_HDR_LEN,
};
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_MTK);
+
+module_dsa_tag_driver(mtk_netdev_ops);
diff --git a/net/dsa/tag_qca.c b/net/dsa/tag_qca.c
index 85c22ada4744..c95885215525 100644
--- a/net/dsa/tag_qca.c
+++ b/net/dsa/tag_qca.c
@@ -1,14 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2015, The Linux Foundation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
*/
#include <linux/etherdevice.h>
@@ -107,9 +99,16 @@ static int qca_tag_flow_dissect(const struct sk_buff *skb, __be16 *proto,
return 0;
}
-const struct dsa_device_ops qca_netdev_ops = {
+static const struct dsa_device_ops qca_netdev_ops = {
+ .name = "qca",
+ .proto = DSA_TAG_PROTO_QCA,
.xmit = qca_tag_xmit,
.rcv = qca_tag_rcv,
.flow_dissect = qca_tag_flow_dissect,
.overhead = QCA_HDR_LEN,
};
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_QCA);
+
+module_dsa_tag_driver(qca_netdev_ops);
diff --git a/net/dsa/tag_sja1105.c b/net/dsa/tag_sja1105.c
new file mode 100644
index 000000000000..969402c7dbf1
--- /dev/null
+++ b/net/dsa/tag_sja1105.c
@@ -0,0 +1,131 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019, Vladimir Oltean <olteanv@gmail.com>
+ */
+#include <linux/if_vlan.h>
+#include <linux/dsa/sja1105.h>
+#include <linux/dsa/8021q.h>
+#include <linux/packing.h>
+#include "dsa_priv.h"
+
+/* Similar to is_link_local_ether_addr(hdr->h_dest) but also covers PTP */
+static inline bool sja1105_is_link_local(const struct sk_buff *skb)
+{
+ const struct ethhdr *hdr = eth_hdr(skb);
+ u64 dmac = ether_addr_to_u64(hdr->h_dest);
+
+ if ((dmac & SJA1105_LINKLOCAL_FILTER_A_MASK) ==
+ SJA1105_LINKLOCAL_FILTER_A)
+ return true;
+ if ((dmac & SJA1105_LINKLOCAL_FILTER_B_MASK) ==
+ SJA1105_LINKLOCAL_FILTER_B)
+ return true;
+ return false;
+}
+
+/* This is the first time the tagger sees the frame on RX.
+ * Figure out if we can decode it, and if we can, annotate skb->cb with how we
+ * plan to do that, so we don't need to check again in the rcv function.
+ */
+static bool sja1105_filter(const struct sk_buff *skb, struct net_device *dev)
+{
+ if (sja1105_is_link_local(skb)) {
+ SJA1105_SKB_CB(skb)->type = SJA1105_FRAME_TYPE_LINK_LOCAL;
+ return true;
+ }
+ if (!dsa_port_is_vlan_filtering(dev->dsa_ptr)) {
+ SJA1105_SKB_CB(skb)->type = SJA1105_FRAME_TYPE_NORMAL;
+ return true;
+ }
+ return false;
+}
+
+static struct sk_buff *sja1105_xmit(struct sk_buff *skb,
+ struct net_device *netdev)
+{
+ struct dsa_port *dp = dsa_slave_to_port(netdev);
+ struct dsa_switch *ds = dp->ds;
+ u16 tx_vid = dsa_8021q_tx_vid(ds, dp->index);
+ u8 pcp = skb->priority;
+
+ /* Transmitting management traffic does not rely upon switch tagging,
+ * but instead SPI-installed management routes. Part 2 of this
+ * is the .port_deferred_xmit driver callback.
+ */
+ if (unlikely(sja1105_is_link_local(skb)))
+ return dsa_defer_xmit(skb, netdev);
+
+ /* If we are under a vlan_filtering bridge, IP termination on
+ * switch ports based on 802.1Q tags is simply too brittle to
+ * be passable. So just defer to the dsa_slave_notag_xmit
+ * implementation.
+ */
+ if (dsa_port_is_vlan_filtering(dp))
+ return skb;
+
+ return dsa_8021q_xmit(skb, netdev, ETH_P_SJA1105,
+ ((pcp << VLAN_PRIO_SHIFT) | tx_vid));
+}
+
+static struct sk_buff *sja1105_rcv(struct sk_buff *skb,
+ struct net_device *netdev,
+ struct packet_type *pt)
+{
+ struct ethhdr *hdr = eth_hdr(skb);
+ u64 source_port, switch_id;
+ struct sk_buff *nskb;
+ u16 tpid, vid, tci;
+ bool is_tagged;
+
+ nskb = dsa_8021q_rcv(skb, netdev, pt, &tpid, &tci);
+ is_tagged = (nskb && tpid == ETH_P_SJA1105);
+
+ skb->priority = (tci & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
+ vid = tci & VLAN_VID_MASK;
+
+ skb->offload_fwd_mark = 1;
+
+ if (SJA1105_SKB_CB(skb)->type == SJA1105_FRAME_TYPE_LINK_LOCAL) {
+ /* Management traffic path. Switch embeds the switch ID and
+ * port ID into bytes of the destination MAC, courtesy of
+ * the incl_srcpt options.
+ */
+ source_port = hdr->h_dest[3];
+ switch_id = hdr->h_dest[4];
+ /* Clear the DMAC bytes that were mangled by the switch */
+ hdr->h_dest[3] = 0;
+ hdr->h_dest[4] = 0;
+ } else {
+ /* Normal traffic path. */
+ source_port = dsa_8021q_rx_source_port(vid);
+ switch_id = dsa_8021q_rx_switch_id(vid);
+ }
+
+ skb->dev = dsa_master_find_slave(netdev, switch_id, source_port);
+ if (!skb->dev) {
+ netdev_warn(netdev, "Couldn't decode source port\n");
+ return NULL;
+ }
+
+ /* Delete/overwrite fake VLAN header, DSA expects to not find
+ * it there, see dsa_switch_rcv: skb_push(skb, ETH_HLEN).
+ */
+ if (is_tagged)
+ memmove(skb->data - ETH_HLEN, skb->data - ETH_HLEN - VLAN_HLEN,
+ ETH_HLEN - VLAN_HLEN);
+
+ return skb;
+}
+
+static struct dsa_device_ops sja1105_netdev_ops = {
+ .name = "sja1105",
+ .proto = DSA_TAG_PROTO_SJA1105,
+ .xmit = sja1105_xmit,
+ .rcv = sja1105_rcv,
+ .filter = sja1105_filter,
+ .overhead = VLAN_HLEN,
+};
+
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_SJA1105);
+
+module_dsa_tag_driver(sja1105_netdev_ops);
diff --git a/net/dsa/tag_trailer.c b/net/dsa/tag_trailer.c
index b40756ed6e57..4f8ab62f0208 100644
--- a/net/dsa/tag_trailer.c
+++ b/net/dsa/tag_trailer.c
@@ -1,11 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
/*
* net/dsa/tag_trailer.c - Trailer tag format handling
* Copyright (c) 2008-2009 Marvell Semiconductor
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
*/
#include <linux/etherdevice.h>
@@ -81,8 +77,15 @@ static struct sk_buff *trailer_rcv(struct sk_buff *skb, struct net_device *dev,
return skb;
}
-const struct dsa_device_ops trailer_netdev_ops = {
+static const struct dsa_device_ops trailer_netdev_ops = {
+ .name = "trailer",
+ .proto = DSA_TAG_PROTO_TRAILER,
.xmit = trailer_xmit,
.rcv = trailer_rcv,
.overhead = 4,
};
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_TRAILER);
+
+module_dsa_tag_driver(trailer_netdev_ops);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.