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-rw-r--r--net/dsa/Makefile10
-rw-r--r--net/dsa/dsa.c9
-rw-r--r--net/dsa/dsa2.c304
-rw-r--r--net/dsa/dsa_priv.h24
-rw-r--r--net/dsa/master.c76
-rw-r--r--net/dsa/netlink.c63
-rw-r--r--net/dsa/port.c372
-rw-r--r--net/dsa/slave.c489
-rw-r--r--net/dsa/switch.c26
-rw-r--r--net/dsa/tag_8021q.c8
10 files changed, 1145 insertions, 236 deletions
diff --git a/net/dsa/Makefile b/net/dsa/Makefile
index af28c24ead18..bf57ef3bce2a 100644
--- a/net/dsa/Makefile
+++ b/net/dsa/Makefile
@@ -1,7 +1,15 @@
# SPDX-License-Identifier: GPL-2.0
# the core
obj-$(CONFIG_NET_DSA) += dsa_core.o
-dsa_core-y += dsa.o dsa2.o master.o port.o slave.o switch.o tag_8021q.o
+dsa_core-y += \
+ dsa.o \
+ dsa2.o \
+ master.o \
+ netlink.o \
+ port.o \
+ slave.o \
+ switch.o \
+ tag_8021q.o
# tagging formats
obj-$(CONFIG_NET_DSA_TAG_AR9331) += tag_ar9331.o
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index be7b320cda76..64b14f655b23 100644
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -536,8 +536,16 @@ static int __init dsa_init_module(void)
dsa_tag_driver_register(&DSA_TAG_DRIVER_NAME(none_ops),
THIS_MODULE);
+ rc = rtnl_link_register(&dsa_link_ops);
+ if (rc)
+ goto netlink_register_fail;
+
return 0;
+netlink_register_fail:
+ dsa_tag_driver_unregister(&DSA_TAG_DRIVER_NAME(none_ops));
+ dsa_slave_unregister_notifier();
+ dev_remove_pack(&dsa_pack_type);
register_notifier_fail:
destroy_workqueue(dsa_owq);
@@ -547,6 +555,7 @@ module_init(dsa_init_module);
static void __exit dsa_cleanup_module(void)
{
+ rtnl_link_unregister(&dsa_link_ops);
dsa_tag_driver_unregister(&DSA_TAG_DRIVER_NAME(none_ops));
dsa_slave_unregister_notifier();
diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c
index cac48a741f27..af0e2c0394ac 100644
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -387,6 +387,20 @@ static struct dsa_port *dsa_tree_find_first_cpu(struct dsa_switch_tree *dst)
return NULL;
}
+struct net_device *dsa_tree_find_first_master(struct dsa_switch_tree *dst)
+{
+ struct device_node *ethernet;
+ struct net_device *master;
+ struct dsa_port *cpu_dp;
+
+ cpu_dp = dsa_tree_find_first_cpu(dst);
+ ethernet = of_parse_phandle(cpu_dp->dn, "ethernet", 0);
+ master = of_find_net_device_by_node(ethernet);
+ of_node_put(ethernet);
+
+ return master;
+}
+
/* Assign the default CPU port (the first one in the tree) to all ports of the
* fabric which don't already have one as part of their own switch.
*/
@@ -447,6 +461,72 @@ static void dsa_tree_teardown_cpu_ports(struct dsa_switch_tree *dst)
dp->cpu_dp = NULL;
}
+static int dsa_port_devlink_setup(struct dsa_port *dp)
+{
+ struct devlink_port *dlp = &dp->devlink_port;
+ struct dsa_switch_tree *dst = dp->ds->dst;
+ struct devlink_port_attrs attrs = {};
+ struct devlink *dl = dp->ds->devlink;
+ struct dsa_switch *ds = dp->ds;
+ const unsigned char *id;
+ unsigned char len;
+ int err;
+
+ memset(dlp, 0, sizeof(*dlp));
+ devlink_port_init(dl, dlp);
+
+ if (ds->ops->port_setup) {
+ err = ds->ops->port_setup(ds, dp->index);
+ if (err)
+ return err;
+ }
+
+ id = (const unsigned char *)&dst->index;
+ len = sizeof(dst->index);
+
+ attrs.phys.port_number = dp->index;
+ memcpy(attrs.switch_id.id, id, len);
+ attrs.switch_id.id_len = len;
+
+ switch (dp->type) {
+ case DSA_PORT_TYPE_UNUSED:
+ attrs.flavour = DEVLINK_PORT_FLAVOUR_UNUSED;
+ break;
+ case DSA_PORT_TYPE_CPU:
+ attrs.flavour = DEVLINK_PORT_FLAVOUR_CPU;
+ break;
+ case DSA_PORT_TYPE_DSA:
+ attrs.flavour = DEVLINK_PORT_FLAVOUR_DSA;
+ break;
+ case DSA_PORT_TYPE_USER:
+ attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL;
+ break;
+ }
+
+ devlink_port_attrs_set(dlp, &attrs);
+ err = devlink_port_register(dl, dlp, dp->index);
+ if (err) {
+ if (ds->ops->port_teardown)
+ ds->ops->port_teardown(ds, dp->index);
+ return err;
+ }
+
+ return 0;
+}
+
+static void dsa_port_devlink_teardown(struct dsa_port *dp)
+{
+ struct devlink_port *dlp = &dp->devlink_port;
+ struct dsa_switch *ds = dp->ds;
+
+ devlink_port_unregister(dlp);
+
+ if (ds->ops->port_teardown)
+ ds->ops->port_teardown(ds, dp->index);
+
+ devlink_port_fini(dlp);
+}
+
static int dsa_port_setup(struct dsa_port *dp)
{
struct devlink_port *dlp = &dp->devlink_port;
@@ -458,21 +538,25 @@ static int dsa_port_setup(struct dsa_port *dp)
if (dp->setup)
return 0;
- if (ds->ops->port_setup) {
- err = ds->ops->port_setup(ds, dp->index);
- if (err)
- return err;
- }
+ err = dsa_port_devlink_setup(dp);
+ if (err)
+ return err;
switch (dp->type) {
case DSA_PORT_TYPE_UNUSED:
dsa_port_disable(dp);
break;
case DSA_PORT_TYPE_CPU:
- err = dsa_port_link_register_of(dp);
- if (err)
- break;
- dsa_port_link_registered = true;
+ if (dp->dn) {
+ err = dsa_shared_port_link_register_of(dp);
+ if (err)
+ break;
+ dsa_port_link_registered = true;
+ } else {
+ dev_warn(ds->dev,
+ "skipping link registration for CPU port %d\n",
+ dp->index);
+ }
err = dsa_port_enable(dp, NULL);
if (err)
@@ -481,10 +565,16 @@ static int dsa_port_setup(struct dsa_port *dp)
break;
case DSA_PORT_TYPE_DSA:
- err = dsa_port_link_register_of(dp);
- if (err)
- break;
- dsa_port_link_registered = true;
+ if (dp->dn) {
+ err = dsa_shared_port_link_register_of(dp);
+ if (err)
+ break;
+ dsa_port_link_registered = true;
+ } else {
+ dev_warn(ds->dev,
+ "skipping link registration for DSA port %d\n",
+ dp->index);
+ }
err = dsa_port_enable(dp, NULL);
if (err)
@@ -505,10 +595,9 @@ static int dsa_port_setup(struct dsa_port *dp)
if (err && dsa_port_enabled)
dsa_port_disable(dp);
if (err && dsa_port_link_registered)
- dsa_port_link_unregister_of(dp);
+ dsa_shared_port_link_unregister_of(dp);
if (err) {
- if (ds->ops->port_teardown)
- ds->ops->port_teardown(ds, dp->index);
+ dsa_port_devlink_teardown(dp);
return err;
}
@@ -517,59 +606,13 @@ static int dsa_port_setup(struct dsa_port *dp)
return 0;
}
-static int dsa_port_devlink_setup(struct dsa_port *dp)
-{
- struct devlink_port *dlp = &dp->devlink_port;
- struct dsa_switch_tree *dst = dp->ds->dst;
- struct devlink_port_attrs attrs = {};
- struct devlink *dl = dp->ds->devlink;
- const unsigned char *id;
- unsigned char len;
- int err;
-
- id = (const unsigned char *)&dst->index;
- len = sizeof(dst->index);
-
- attrs.phys.port_number = dp->index;
- memcpy(attrs.switch_id.id, id, len);
- attrs.switch_id.id_len = len;
- memset(dlp, 0, sizeof(*dlp));
-
- switch (dp->type) {
- case DSA_PORT_TYPE_UNUSED:
- attrs.flavour = DEVLINK_PORT_FLAVOUR_UNUSED;
- break;
- case DSA_PORT_TYPE_CPU:
- attrs.flavour = DEVLINK_PORT_FLAVOUR_CPU;
- break;
- case DSA_PORT_TYPE_DSA:
- attrs.flavour = DEVLINK_PORT_FLAVOUR_DSA;
- break;
- case DSA_PORT_TYPE_USER:
- attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL;
- break;
- }
-
- devlink_port_attrs_set(dlp, &attrs);
- err = devlink_port_register(dl, dlp, dp->index);
-
- if (!err)
- dp->devlink_port_setup = true;
-
- return err;
-}
-
static void dsa_port_teardown(struct dsa_port *dp)
{
struct devlink_port *dlp = &dp->devlink_port;
- struct dsa_switch *ds = dp->ds;
if (!dp->setup)
return;
- if (ds->ops->port_teardown)
- ds->ops->port_teardown(ds, dp->index);
-
devlink_port_type_clear(dlp);
switch (dp->type) {
@@ -577,11 +620,13 @@ static void dsa_port_teardown(struct dsa_port *dp)
break;
case DSA_PORT_TYPE_CPU:
dsa_port_disable(dp);
- dsa_port_link_unregister_of(dp);
+ if (dp->dn)
+ dsa_shared_port_link_unregister_of(dp);
break;
case DSA_PORT_TYPE_DSA:
dsa_port_disable(dp);
- dsa_port_link_unregister_of(dp);
+ if (dp->dn)
+ dsa_shared_port_link_unregister_of(dp);
break;
case DSA_PORT_TYPE_USER:
if (dp->slave) {
@@ -591,46 +636,15 @@ static void dsa_port_teardown(struct dsa_port *dp)
break;
}
- dp->setup = false;
-}
-
-static void dsa_port_devlink_teardown(struct dsa_port *dp)
-{
- struct devlink_port *dlp = &dp->devlink_port;
+ dsa_port_devlink_teardown(dp);
- if (dp->devlink_port_setup)
- devlink_port_unregister(dlp);
- dp->devlink_port_setup = false;
+ dp->setup = false;
}
-/* Destroy the current devlink port, and create a new one which has the UNUSED
- * flavour. At this point, any call to ds->ops->port_setup has been already
- * balanced out by a call to ds->ops->port_teardown, so we know that any
- * devlink port regions the driver had are now unregistered. We then call its
- * ds->ops->port_setup again, in order for the driver to re-create them on the
- * new devlink port.
- */
-static int dsa_port_reinit_as_unused(struct dsa_port *dp)
+static int dsa_port_setup_as_unused(struct dsa_port *dp)
{
- struct dsa_switch *ds = dp->ds;
- int err;
-
- dsa_port_devlink_teardown(dp);
dp->type = DSA_PORT_TYPE_UNUSED;
- err = dsa_port_devlink_setup(dp);
- if (err)
- return err;
-
- if (ds->ops->port_setup) {
- /* On error, leave the devlink port registered,
- * dsa_switch_teardown will clean it up later.
- */
- err = ds->ops->port_setup(ds, dp->index);
- if (err)
- return err;
- }
-
- return 0;
+ return dsa_port_setup(dp);
}
static int dsa_devlink_info_get(struct devlink *dl,
@@ -854,7 +868,6 @@ static int dsa_switch_setup(struct dsa_switch *ds)
{
struct dsa_devlink_priv *dl_priv;
struct device_node *dn;
- struct dsa_port *dp;
int err;
if (ds->setup)
@@ -877,18 +890,9 @@ static int dsa_switch_setup(struct dsa_switch *ds)
dl_priv = devlink_priv(ds->devlink);
dl_priv->ds = ds;
- /* Setup devlink port instances now, so that the switch
- * setup() can register regions etc, against the ports
- */
- dsa_switch_for_each_port(dp, ds) {
- err = dsa_port_devlink_setup(dp);
- if (err)
- goto unregister_devlink_ports;
- }
-
err = dsa_switch_register_notifier(ds);
if (err)
- goto unregister_devlink_ports;
+ goto devlink_free;
ds->configure_vlan_while_not_filtering = true;
@@ -929,9 +933,7 @@ teardown:
ds->ops->teardown(ds);
unregister_notifier:
dsa_switch_unregister_notifier(ds);
-unregister_devlink_ports:
- dsa_switch_for_each_port(dp, ds)
- dsa_port_devlink_teardown(dp);
+devlink_free:
devlink_free(ds->devlink);
ds->devlink = NULL;
return err;
@@ -939,8 +941,6 @@ unregister_devlink_ports:
static void dsa_switch_teardown(struct dsa_switch *ds)
{
- struct dsa_port *dp;
-
if (!ds->setup)
return;
@@ -959,8 +959,6 @@ static void dsa_switch_teardown(struct dsa_switch *ds)
dsa_switch_unregister_notifier(ds);
if (ds->devlink) {
- dsa_switch_for_each_port(dp, ds)
- dsa_port_devlink_teardown(dp);
devlink_free(ds->devlink);
ds->devlink = NULL;
}
@@ -1013,7 +1011,7 @@ static int dsa_tree_setup_ports(struct dsa_switch_tree *dst)
if (dsa_port_is_user(dp) || dsa_port_is_unused(dp)) {
err = dsa_port_setup(dp);
if (err) {
- err = dsa_port_reinit_as_unused(dp);
+ err = dsa_port_setup_as_unused(dp);
if (err)
goto teardown;
}
@@ -1046,26 +1044,24 @@ static int dsa_tree_setup_switches(struct dsa_switch_tree *dst)
static int dsa_tree_setup_master(struct dsa_switch_tree *dst)
{
- struct dsa_port *dp;
+ struct dsa_port *cpu_dp;
int err = 0;
rtnl_lock();
- list_for_each_entry(dp, &dst->ports, list) {
- if (dsa_port_is_cpu(dp)) {
- struct net_device *master = dp->master;
- bool admin_up = (master->flags & IFF_UP) &&
- !qdisc_tx_is_noop(master);
+ dsa_tree_for_each_cpu_port(cpu_dp, dst) {
+ struct net_device *master = cpu_dp->master;
+ bool admin_up = (master->flags & IFF_UP) &&
+ !qdisc_tx_is_noop(master);
- err = dsa_master_setup(master, dp);
- if (err)
- break;
+ err = dsa_master_setup(master, cpu_dp);
+ if (err)
+ break;
- /* Replay master state event */
- dsa_tree_master_admin_state_change(dst, master, admin_up);
- dsa_tree_master_oper_state_change(dst, master,
- netif_oper_up(master));
- }
+ /* Replay master state event */
+ dsa_tree_master_admin_state_change(dst, master, admin_up);
+ dsa_tree_master_oper_state_change(dst, master,
+ netif_oper_up(master));
}
rtnl_unlock();
@@ -1075,22 +1071,20 @@ static int dsa_tree_setup_master(struct dsa_switch_tree *dst)
static void dsa_tree_teardown_master(struct dsa_switch_tree *dst)
{
- struct dsa_port *dp;
+ struct dsa_port *cpu_dp;
rtnl_lock();
- list_for_each_entry(dp, &dst->ports, list) {
- if (dsa_port_is_cpu(dp)) {
- struct net_device *master = dp->master;
+ dsa_tree_for_each_cpu_port(cpu_dp, dst) {
+ struct net_device *master = cpu_dp->master;
- /* Synthesizing an "admin down" state is sufficient for
- * the switches to get a notification if the master is
- * currently up and running.
- */
- dsa_tree_master_admin_state_change(dst, master, false);
+ /* Synthesizing an "admin down" state is sufficient for
+ * the switches to get a notification if the master is
+ * currently up and running.
+ */
+ dsa_tree_master_admin_state_change(dst, master, false);
- dsa_master_teardown(master);
- }
+ dsa_master_teardown(master);
}
rtnl_unlock();
@@ -1238,7 +1232,6 @@ out_disconnect:
* they would have formed disjoint trees (different "dsa,member" values).
*/
int dsa_tree_change_tag_proto(struct dsa_switch_tree *dst,
- struct net_device *master,
const struct dsa_device_ops *tag_ops,
const struct dsa_device_ops *old_tag_ops)
{
@@ -1254,12 +1247,9 @@ int dsa_tree_change_tag_proto(struct dsa_switch_tree *dst,
* attempts to change the tagging protocol. If we ever lift the IFF_UP
* restriction, there needs to be another mutex which serializes this.
*/
- if (master->flags & IFF_UP)
- goto out_unlock;
-
- list_for_each_entry(dp, &dst->ports, list) {
- if (!dsa_port_is_user(dp))
- continue;
+ dsa_tree_for_each_user_port(dp, dst) {
+ if (dsa_port_to_master(dp)->flags & IFF_UP)
+ goto out_unlock;
if (dp->slave->flags & IFF_UP)
goto out_unlock;
@@ -1306,6 +1296,12 @@ void dsa_tree_master_admin_state_change(struct dsa_switch_tree *dst,
struct dsa_port *cpu_dp = master->dsa_ptr;
bool notify = false;
+ /* Don't keep track of admin state on LAG DSA masters,
+ * but rather just of physical DSA masters
+ */
+ if (netif_is_lag_master(master))
+ return;
+
if ((dsa_port_master_is_operational(cpu_dp)) !=
(up && cpu_dp->master_oper_up))
notify = true;
@@ -1323,6 +1319,12 @@ void dsa_tree_master_oper_state_change(struct dsa_switch_tree *dst,
struct dsa_port *cpu_dp = master->dsa_ptr;
bool notify = false;
+ /* Don't keep track of oper state on LAG DSA masters,
+ * but rather just of physical DSA masters
+ */
+ if (netif_is_lag_master(master))
+ return;
+
if ((dsa_port_master_is_operational(cpu_dp)) !=
(cpu_dp->master_admin_up && up))
notify = true;
@@ -1791,7 +1793,7 @@ void dsa_switch_shutdown(struct dsa_switch *ds)
rtnl_lock();
dsa_switch_for_each_user_port(dp, ds) {
- master = dp->cpu_dp->master;
+ master = dsa_port_to_master(dp);
slave_dev = dp->slave;
netdev_upper_dev_unlink(master, slave_dev);
diff --git a/net/dsa/dsa_priv.h b/net/dsa/dsa_priv.h
index d9722e49864b..6e65c7ffd6f3 100644
--- a/net/dsa/dsa_priv.h
+++ b/net/dsa/dsa_priv.h
@@ -88,6 +88,7 @@ struct dsa_notifier_lag_info {
const struct dsa_port *dp;
struct dsa_lag lag;
struct netdev_lag_upper_info *info;
+ struct netlink_ext_ack *extack;
};
/* DSA_NOTIFIER_VLAN_* */
@@ -184,6 +185,11 @@ static inline int dsa_tag_protocol_overhead(const struct dsa_device_ops *ops)
/* master.c */
int dsa_master_setup(struct net_device *dev, struct dsa_port *cpu_dp);
void dsa_master_teardown(struct net_device *dev);
+int dsa_master_lag_setup(struct net_device *lag_dev, struct dsa_port *cpu_dp,
+ struct netdev_lag_upper_info *uinfo,
+ struct netlink_ext_ack *extack);
+void dsa_master_lag_teardown(struct net_device *lag_dev,
+ struct dsa_port *cpu_dp);
static inline struct net_device *dsa_master_find_slave(struct net_device *dev,
int device, int port)
@@ -200,6 +206,9 @@ static inline struct net_device *dsa_master_find_slave(struct net_device *dev,
return NULL;
}
+/* netlink.c */
+extern struct rtnl_link_ops dsa_link_ops __read_mostly;
+
/* port.c */
void dsa_port_set_tag_protocol(struct dsa_port *cpu_dp,
const struct dsa_device_ops *tag_ops);
@@ -285,13 +294,16 @@ int dsa_port_mrp_add_ring_role(const struct dsa_port *dp,
int dsa_port_mrp_del_ring_role(const struct dsa_port *dp,
const struct switchdev_obj_ring_role_mrp *mrp);
int dsa_port_phylink_create(struct dsa_port *dp);
-int dsa_port_link_register_of(struct dsa_port *dp);
-void dsa_port_link_unregister_of(struct dsa_port *dp);
+void dsa_port_phylink_destroy(struct dsa_port *dp);
+int dsa_shared_port_link_register_of(struct dsa_port *dp);
+void dsa_shared_port_link_unregister_of(struct dsa_port *dp);
int dsa_port_hsr_join(struct dsa_port *dp, struct net_device *hsr);
void dsa_port_hsr_leave(struct dsa_port *dp, struct net_device *hsr);
int dsa_port_tag_8021q_vlan_add(struct dsa_port *dp, u16 vid, bool broadcast);
void dsa_port_tag_8021q_vlan_del(struct dsa_port *dp, u16 vid, bool broadcast);
void dsa_port_set_host_flood(struct dsa_port *dp, bool uc, bool mc);
+int dsa_port_change_master(struct dsa_port *dp, struct net_device *master,
+ struct netlink_ext_ack *extack);
/* slave.c */
extern const struct dsa_device_ops notag_netdev_ops;
@@ -305,8 +317,12 @@ int dsa_slave_suspend(struct net_device *slave_dev);
int dsa_slave_resume(struct net_device *slave_dev);
int dsa_slave_register_notifier(void);
void dsa_slave_unregister_notifier(void);
+void dsa_slave_sync_ha(struct net_device *dev);
+void dsa_slave_unsync_ha(struct net_device *dev);
void dsa_slave_setup_tagger(struct net_device *slave);
int dsa_slave_change_mtu(struct net_device *dev, int new_mtu);
+int dsa_slave_change_master(struct net_device *dev, struct net_device *master,
+ struct netlink_ext_ack *extack);
int dsa_slave_manage_vlan_filtering(struct net_device *dev,
bool vlan_filtering);
@@ -322,7 +338,7 @@ dsa_slave_to_master(const struct net_device *dev)
{
struct dsa_port *dp = dsa_slave_to_port(dev);
- return dp->cpu_dp->master;
+ return dsa_port_to_master(dp);
}
/* If under a bridge with vlan_filtering=0, make sure to send pvid-tagged
@@ -542,10 +558,10 @@ void dsa_lag_map(struct dsa_switch_tree *dst, struct dsa_lag *lag);
void dsa_lag_unmap(struct dsa_switch_tree *dst, struct dsa_lag *lag);
struct dsa_lag *dsa_tree_lag_find(struct dsa_switch_tree *dst,
const struct net_device *lag_dev);
+struct net_device *dsa_tree_find_first_master(struct dsa_switch_tree *dst);
int dsa_tree_notify(struct dsa_switch_tree *dst, unsigned long e, void *v);
int dsa_broadcast(unsigned long e, void *v);
int dsa_tree_change_tag_proto(struct dsa_switch_tree *dst,
- struct net_device *master,
const struct dsa_device_ops *tag_ops,
const struct dsa_device_ops *old_tag_ops);
void dsa_tree_master_admin_state_change(struct dsa_switch_tree *dst,
diff --git a/net/dsa/master.c b/net/dsa/master.c
index 2851e44c4cf0..40367ab41cf8 100644
--- a/net/dsa/master.c
+++ b/net/dsa/master.c
@@ -58,7 +58,7 @@ static void dsa_master_get_regs(struct net_device *dev,
}
cpu_info = (struct ethtool_drvinfo *)data;
- strlcpy(cpu_info->driver, "dsa", sizeof(cpu_info->driver));
+ strscpy(cpu_info->driver, "dsa", sizeof(cpu_info->driver));
data += sizeof(*cpu_info);
cpu_regs = (struct ethtool_regs *)data;
data += sizeof(*cpu_regs);
@@ -226,6 +226,9 @@ static int dsa_master_ethtool_setup(struct net_device *dev)
struct dsa_switch *ds = cpu_dp->ds;
struct ethtool_ops *ops;
+ if (netif_is_lag_master(dev))
+ return 0;
+
ops = devm_kzalloc(ds->dev, sizeof(*ops), GFP_KERNEL);
if (!ops)
return -ENOMEM;
@@ -250,6 +253,9 @@ static void dsa_master_ethtool_teardown(struct net_device *dev)
{
struct dsa_port *cpu_dp = dev->dsa_ptr;
+ if (netif_is_lag_master(dev))
+ return;
+
dev->ethtool_ops = cpu_dp->orig_ethtool_ops;
cpu_dp->orig_ethtool_ops = NULL;
}
@@ -257,6 +263,9 @@ static void dsa_master_ethtool_teardown(struct net_device *dev)
static void dsa_netdev_ops_set(struct net_device *dev,
const struct dsa_netdevice_ops *ops)
{
+ if (netif_is_lag_master(dev))
+ return;
+
dev->dsa_ptr->netdev_ops = ops;
}
@@ -307,7 +316,7 @@ static ssize_t tagging_store(struct device *d, struct device_attribute *attr,
*/
goto out;
- err = dsa_tree_change_tag_proto(cpu_dp->ds->dst, dev, new_tag_ops,
+ err = dsa_tree_change_tag_proto(cpu_dp->ds->dst, new_tag_ops,
old_tag_ops);
if (err) {
/* On failure the old tagger is restored, so we don't need the
@@ -355,12 +364,14 @@ int dsa_master_setup(struct net_device *dev, struct dsa_port *cpu_dp)
mtu = ETH_DATA_LEN + dsa_tag_protocol_overhead(tag_ops);
/* The DSA master must use SET_NETDEV_DEV for this to work. */
- consumer_link = device_link_add(ds->dev, dev->dev.parent,
- DL_FLAG_AUTOREMOVE_CONSUMER);
- if (!consumer_link)
- netdev_err(dev,
- "Failed to create a device link to DSA switch %s\n",
- dev_name(ds->dev));
+ if (!netif_is_lag_master(dev)) {
+ consumer_link = device_link_add(ds->dev, dev->dev.parent,
+ DL_FLAG_AUTOREMOVE_CONSUMER);
+ if (!consumer_link)
+ netdev_err(dev,
+ "Failed to create a device link to DSA switch %s\n",
+ dev_name(ds->dev));
+ }
/* The switch driver may not implement ->port_change_mtu(), case in
* which dsa_slave_change_mtu() will not update the master MTU either,
@@ -417,3 +428,52 @@ void dsa_master_teardown(struct net_device *dev)
*/
wmb();
}
+
+int dsa_master_lag_setup(struct net_device *lag_dev, struct dsa_port *cpu_dp,
+ struct netdev_lag_upper_info *uinfo,
+ struct netlink_ext_ack *extack)
+{
+ bool master_setup = false;
+ int err;
+
+ if (!netdev_uses_dsa(lag_dev)) {
+ err = dsa_master_setup(lag_dev, cpu_dp);
+ if (err)
+ return err;
+
+ master_setup = true;
+ }
+
+ err = dsa_port_lag_join(cpu_dp, lag_dev, uinfo, extack);
+ if (err) {
+ if (extack && !extack->_msg)
+ NL_SET_ERR_MSG_MOD(extack,
+ "CPU port failed to join LAG");
+ goto out_master_teardown;
+ }
+
+ return 0;
+
+out_master_teardown:
+ if (master_setup)
+ dsa_master_teardown(lag_dev);
+ return err;
+}
+
+/* Tear down a master if there isn't any other user port on it,
+ * optionally also destroying LAG information.
+ */
+void dsa_master_lag_teardown(struct net_device *lag_dev,
+ struct dsa_port *cpu_dp)
+{
+ struct net_device *upper;
+ struct list_head *iter;
+
+ dsa_port_lag_leave(cpu_dp, lag_dev);
+
+ netdev_for_each_upper_dev_rcu(lag_dev, upper, iter)
+ if (dsa_slave_dev_check(upper))
+ return;
+
+ dsa_master_teardown(lag_dev);
+}
diff --git a/net/dsa/netlink.c b/net/dsa/netlink.c
new file mode 100644
index 000000000000..ecf9ed1de185
--- /dev/null
+++ b/net/dsa/netlink.c
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright 2022 NXP
+ */
+#include <linux/netdevice.h>
+#include <net/rtnetlink.h>
+
+#include "dsa_priv.h"
+
+static const struct nla_policy dsa_policy[IFLA_DSA_MAX + 1] = {
+ [IFLA_DSA_MASTER] = { .type = NLA_U32 },
+};
+
+static int dsa_changelink(struct net_device *dev, struct nlattr *tb[],
+ struct nlattr *data[],
+ struct netlink_ext_ack *extack)
+{
+ int err;
+
+ if (!data)
+ return 0;
+
+ if (data[IFLA_DSA_MASTER]) {
+ u32 ifindex = nla_get_u32(data[IFLA_DSA_MASTER]);
+ struct net_device *master;
+
+ master = __dev_get_by_index(dev_net(dev), ifindex);
+ if (!master)
+ return -EINVAL;
+
+ err = dsa_slave_change_master(dev, master, extack);
+ if (err)
+ return err;
+ }
+
+ return 0;
+}
+
+static size_t dsa_get_size(const struct net_device *dev)
+{
+ return nla_total_size(sizeof(u32)) + /* IFLA_DSA_MASTER */
+ 0;
+}
+
+static int dsa_fill_info(struct sk_buff *skb, const struct net_device *dev)
+{
+ struct net_device *master = dsa_slave_to_master(dev);
+
+ if (nla_put_u32(skb, IFLA_DSA_MASTER, master->ifindex))
+ return -EMSGSIZE;
+
+ return 0;
+}
+
+struct rtnl_link_ops dsa_link_ops __read_mostly = {
+ .kind = "dsa",
+ .priv_size = sizeof(struct dsa_port),
+ .maxtype = IFLA_DSA_MAX,
+ .policy = dsa_policy,
+ .changelink = dsa_changelink,
+ .get_size = dsa_get_size,
+ .fill_info = dsa_fill_info,
+ .netns_refund = true,
+};
diff --git a/net/dsa/port.c b/net/dsa/port.c
index a8895ee3cd60..e4a0513816bb 100644
--- a/net/dsa/port.c
+++ b/net/dsa/port.c
@@ -7,6 +7,7 @@
*/
#include <linux/if_bridge.h>
+#include <linux/netdevice.h>
#include <linux/notifier.h>
#include <linux/of_mdio.h>
#include <linux/of_net.h>
@@ -634,6 +635,7 @@ int dsa_port_lag_join(struct dsa_port *dp, struct net_device *lag_dev,
struct dsa_notifier_lag_info info = {
.dp = dp,
.info = uinfo,
+ .extack = extack,
};
struct net_device *bridge_dev;
int err;
@@ -1026,7 +1028,7 @@ int dsa_port_standalone_host_fdb_add(struct dsa_port *dp,
int dsa_port_bridge_host_fdb_add(struct dsa_port *dp,
const unsigned char *addr, u16 vid)
{
- struct dsa_port *cpu_dp = dp->cpu_dp;
+ struct net_device *master = dsa_port_to_master(dp);
struct dsa_db db = {
.type = DSA_DB_BRIDGE,
.bridge = *dp->bridge,
@@ -1037,8 +1039,8 @@ int dsa_port_bridge_host_fdb_add(struct dsa_port *dp,
* requires rtnl_lock(), since we can't guarantee that is held here,
* and we can't take it either.
*/
- if (cpu_dp->master->priv_flags & IFF_UNICAST_FLT) {
- err = dev_uc_add(cpu_dp->master, addr);
+ if (master->priv_flags & IFF_UNICAST_FLT) {
+ err = dev_uc_add(master, addr);
if (err)
return err;
}
@@ -1077,15 +1079,15 @@ int dsa_port_standalone_host_fdb_del(struct dsa_port *dp,
int dsa_port_bridge_host_fdb_del(struct dsa_port *dp,
const unsigned char *addr, u16 vid)
{
- struct dsa_port *cpu_dp = dp->cpu_dp;
+ struct net_device *master = dsa_port_to_master(dp);
struct dsa_db db = {
.type = DSA_DB_BRIDGE,
.bridge = *dp->bridge,
};
int err;
- if (cpu_dp->master->priv_flags & IFF_UNICAST_FLT) {
- err = dev_uc_del(cpu_dp->master, addr);
+ if (master->priv_flags & IFF_UNICAST_FLT) {
+ err = dev_uc_del(master, addr);
if (err)
return err;
}
@@ -1208,14 +1210,14 @@ int dsa_port_standalone_host_mdb_add(const struct dsa_port *dp,
int dsa_port_bridge_host_mdb_add(const struct dsa_port *dp,
const struct switchdev_obj_port_mdb *mdb)
{
- struct dsa_port *cpu_dp = dp->cpu_dp;
+ struct net_device *master = dsa_port_to_master(dp);
struct dsa_db db = {
.type = DSA_DB_BRIDGE,
.bridge = *dp->bridge,
};
int err;
- err = dev_mc_add(cpu_dp->master, mdb->addr);
+ err = dev_mc_add(master, mdb->addr);
if (err)
return err;
@@ -1252,14 +1254,14 @@ int dsa_port_standalone_host_mdb_del(const struct dsa_port *dp,
int dsa_port_bridge_host_mdb_del(const struct dsa_port *dp,
const struct switchdev_obj_port_mdb *mdb)
{
- struct dsa_port *cpu_dp = dp->cpu_dp;
+ struct net_device *master = dsa_port_to_master(dp);
struct dsa_db db = {
.type = DSA_DB_BRIDGE,
.bridge = *dp->bridge,
};
int err;
- err = dev_mc_del(cpu_dp->master, mdb->addr);
+ err = dev_mc_del(master, mdb->addr);
if (err)
return err;
@@ -1294,19 +1296,19 @@ int dsa_port_host_vlan_add(struct dsa_port *dp,
const struct switchdev_obj_port_vlan *vlan,
struct netlink_ext_ack *extack)
{
+ struct net_device *master = dsa_port_to_master(dp);
struct dsa_notifier_vlan_info info = {
.dp = dp,
.vlan = vlan,
.extack = extack,
};
- struct dsa_port *cpu_dp = dp->cpu_dp;
int err;
err = dsa_port_notify(dp, DSA_NOTIFIER_HOST_VLAN_ADD, &info);
if (err && err != -EOPNOTSUPP)
return err;
- vlan_vid_add(cpu_dp->master, htons(ETH_P_8021Q), vlan->vid);
+ vlan_vid_add(master, htons(ETH_P_8021Q), vlan->vid);
return err;
}
@@ -1314,18 +1316,18 @@ int dsa_port_host_vlan_add(struct dsa_port *dp,
int dsa_port_host_vlan_del(struct dsa_port *dp,
const struct switchdev_obj_port_vlan *vlan)
{
+ struct net_device *master = dsa_port_to_master(dp);
struct dsa_notifier_vlan_info info = {
.dp = dp,
.vlan = vlan,
};
- struct dsa_port *cpu_dp = dp->cpu_dp;
int err;
err = dsa_port_notify(dp, DSA_NOTIFIER_HOST_VLAN_DEL, &info);
if (err && err != -EOPNOTSUPP)
return err;
- vlan_vid_del(cpu_dp->master, htons(ETH_P_8021Q), vlan->vid);
+ vlan_vid_del(master, htons(ETH_P_8021Q), vlan->vid);
return err;
}
@@ -1374,6 +1376,136 @@ int dsa_port_mrp_del_ring_role(const struct dsa_port *dp,
return ds->ops->port_mrp_del_ring_role(ds, dp->index, mrp);
}
+static int dsa_port_assign_master(struct dsa_port *dp,
+ struct net_device *master,
+ struct netlink_ext_ack *extack,
+ bool fail_on_err)
+{
+ struct dsa_switch *ds = dp->ds;
+ int port = dp->index, err;
+
+ err = ds->ops->port_change_master(ds, port, master, extack);
+ if (err && !fail_on_err)
+ dev_err(ds->dev, "port %d failed to assign master %s: %pe\n",
+ port, master->name, ERR_PTR(err));
+
+ if (err && fail_on_err)
+ return err;
+
+ dp->cpu_dp = master->dsa_ptr;
+ dp->cpu_port_in_lag = netif_is_lag_master(master);
+
+ return 0;
+}
+
+/* Change the dp->cpu_dp affinity for a user port. Note that both cross-chip
+ * notifiers and drivers have implicit assumptions about user-to-CPU-port
+ * mappings, so we unfortunately cannot delay the deletion of the objects
+ * (switchdev, standalone addresses, standalone VLANs) on the old CPU port
+ * until the new CPU port has been set up. So we need to completely tear down
+ * the old CPU port before changing it, and restore it on errors during the
+ * bringup of the new one.
+ */
+int dsa_port_change_master(struct dsa_port *dp, struct net_device *master,
+ struct netlink_ext_ack *extack)
+{
+ struct net_device *bridge_dev = dsa_port_bridge_dev_get(dp);
+ struct net_device *old_master = dsa_port_to_master(dp);
+ struct net_device *dev = dp->slave;
+ struct dsa_switch *ds = dp->ds;
+ bool vlan_filtering;
+ int err, tmp;
+
+ /* Bridges may hold host FDB, MDB and VLAN objects. These need to be
+ * migrated, so dynamically unoffload and later reoffload the bridge
+ * port.
+ */
+ if (bridge_dev) {
+ dsa_port_pre_bridge_leave(dp, bridge_dev);
+ dsa_port_bridge_leave(dp, bridge_dev);
+ }
+
+ /* The port might still be VLAN filtering even if it's no longer
+ * under a bridge, either due to ds->vlan_filtering_is_global or
+ * ds->needs_standalone_vlan_filtering. In turn this means VLANs
+ * on the CPU port.
+ */
+ vlan_filtering = dsa_port_is_vlan_filtering(dp);
+ if (vlan_filtering) {
+ err = dsa_slave_manage_vlan_filtering(dev, false);
+ if (err) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Failed to remove standalone VLANs");
+ goto rewind_old_bridge;
+ }
+ }
+
+ /* Standalone addresses, and addresses of upper interfaces like
+ * VLAN, LAG, HSR need to be migrated.
+ */
+ dsa_slave_unsync_ha(dev);
+
+ err = dsa_port_assign_master(dp, master, extack, true);
+ if (err)
+ goto rewind_old_addrs;
+
+ dsa_slave_sync_ha(dev);
+
+ if (vlan_filtering) {
+ err = dsa_slave_manage_vlan_filtering(dev, true);
+ if (err) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Failed to restore standalone VLANs");
+ goto rewind_new_addrs;
+ }
+ }
+
+ if (bridge_dev) {
+ err = dsa_port_bridge_join(dp, bridge_dev, extack);
+ if (err && err == -EOPNOTSUPP) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Failed to reoffload bridge");
+ goto rewind_new_vlan;
+ }
+ }
+
+ return 0;
+
+rewind_new_vlan:
+ if (vlan_filtering)
+ dsa_slave_manage_vlan_filtering(dev, false);
+
+rewind_new_addrs:
+ dsa_slave_unsync_ha(dev);
+
+ dsa_port_assign_master(dp, old_master, NULL, false);
+
+/* Restore the objects on the old CPU port */
+rewind_old_addrs:
+ dsa_slave_sync_ha(dev);
+
+ if (vlan_filtering) {
+ tmp = dsa_slave_manage_vlan_filtering(dev, true);
+ if (tmp) {
+ dev_err(ds->dev,
+ "port %d failed to restore standalone VLANs: %pe\n",
+ dp->index, ERR_PTR(tmp));
+ }
+ }
+
+rewind_old_bridge:
+ if (bridge_dev) {
+ tmp = dsa_port_bridge_join(dp, bridge_dev, extack);
+ if (tmp) {
+ dev_err(ds->dev,
+ "port %d failed to rejoin bridge %s: %pe\n",
+ dp->index, bridge_dev->name, ERR_PTR(tmp));
+ }
+ }
+
+ return err;
+}
+
void dsa_port_set_tag_protocol(struct dsa_port *cpu_dp,
const struct dsa_device_ops *tag_ops)
{
@@ -1529,6 +1661,7 @@ int dsa_port_phylink_create(struct dsa_port *dp)
{
struct dsa_switch *ds = dp->ds;
phy_interface_t mode;
+ struct phylink *pl;
int err;
err = of_get_phy_mode(dp->dn, &mode);
@@ -1545,17 +1678,25 @@ int dsa_port_phylink_create(struct dsa_port *dp)
if (ds->ops->phylink_get_caps)
ds->ops->phylink_get_caps(ds, dp->index, &dp->pl_config);
- dp->pl = phylink_create(&dp->pl_config, of_fwnode_handle(dp->dn),
- mode, &dsa_port_phylink_mac_ops);
- if (IS_ERR(dp->pl)) {
+ pl = phylink_create(&dp->pl_config, of_fwnode_handle(dp->dn),
+ mode, &dsa_port_phylink_mac_ops);
+ if (IS_ERR(pl)) {
pr_err("error creating PHYLINK: %ld\n", PTR_ERR(dp->pl));
- return PTR_ERR(dp->pl);
+ return PTR_ERR(pl);
}
+ dp->pl = pl;
+
return 0;
}
-static int dsa_port_setup_phy_of(struct dsa_port *dp, bool enable)
+void dsa_port_phylink_destroy(struct dsa_port *dp)
+{
+ phylink_destroy(dp->pl);
+ dp->pl = NULL;
+}
+
+static int dsa_shared_port_setup_phy_of(struct dsa_port *dp, bool enable)
{
struct dsa_switch *ds = dp->ds;
struct phy_device *phydev;
@@ -1593,7 +1734,7 @@ err_put_dev:
return err;
}
-static int dsa_port_fixed_link_register_of(struct dsa_port *dp)
+static int dsa_shared_port_fixed_link_register_of(struct dsa_port *dp)
{
struct device_node *dn = dp->dn;
struct dsa_switch *ds = dp->ds;
@@ -1627,7 +1768,7 @@ static int dsa_port_fixed_link_register_of(struct dsa_port *dp)
return 0;
}
-static int dsa_port_phylink_register(struct dsa_port *dp)
+static int dsa_shared_port_phylink_register(struct dsa_port *dp)
{
struct dsa_switch *ds = dp->ds;
struct device_node *port_dn = dp->dn;
@@ -1649,26 +1790,188 @@ static int dsa_port_phylink_register(struct dsa_port *dp)
return 0;
err_phy_connect:
- phylink_destroy(dp->pl);
+ dsa_port_phylink_destroy(dp);
return err;
}
-int dsa_port_link_register_of(struct dsa_port *dp)
+/* During the initial DSA driver migration to OF, port nodes were sometimes
+ * added to device trees with no indication of how they should operate from a
+ * link management perspective (phy-handle, fixed-link, etc). Additionally, the
+ * phy-mode may be absent. The interpretation of these port OF nodes depends on
+ * their type.
+ *
+ * User ports with no phy-handle or fixed-link are expected to connect to an
+ * internal PHY located on the ds->slave_mii_bus at an MDIO address equal to
+ * the port number. This description is still actively supported.
+ *
+ * Shared (CPU and DSA) ports with no phy-handle or fixed-link are expected to
+ * operate at the maximum speed that their phy-mode is capable of. If the
+ * phy-mode is absent, they are expected to operate using the phy-mode
+ * supported by the port that gives the highest link speed. It is unspecified
+ * if the port should use flow control or not, half duplex or full duplex, or
+ * if the phy-mode is a SERDES link, whether in-band autoneg is expected to be
+ * enabled or not.
+ *
+ * In the latter case of shared ports, omitting the link management description
+ * from the firmware node is deprecated and strongly discouraged. DSA uses
+ * phylink, which rejects the firmware nodes of these ports for lacking
+ * required properties.
+ *
+ * For switches in this table, DSA will skip enforcing validation and will
+ * later omit registering a phylink instance for the shared ports, if they lack
+ * a fixed-link, a phy-handle, or a managed = "in-band-status" property.
+ * It becomes the responsibility of the driver to ensure that these ports
+ * operate at the maximum speed (whatever this means) and will interoperate
+ * with the DSA master or other cascade port, since phylink methods will not be
+ * invoked for them.
+ *
+ * If you are considering expanding this table for newly introduced switches,
+ * think again. It is OK to remove switches from this table if there aren't DT
+ * blobs in circulation which rely on defaulting the shared ports.
+ */
+static const char * const dsa_switches_apply_workarounds[] = {
+#if IS_ENABLED(CONFIG_NET_DSA_XRS700X)
+ "arrow,xrs7003e",
+ "arrow,xrs7003f",
+ "arrow,xrs7004e",
+ "arrow,xrs7004f",
+#endif
+#if IS_ENABLED(CONFIG_B53)
+ "brcm,bcm5325",
+ "brcm,bcm53115",
+ "brcm,bcm53125",
+ "brcm,bcm53128",
+ "brcm,bcm5365",
+ "brcm,bcm5389",
+ "brcm,bcm5395",
+ "brcm,bcm5397",
+ "brcm,bcm5398",
+ "brcm,bcm53010-srab",
+ "brcm,bcm53011-srab",
+ "brcm,bcm53012-srab",
+ "brcm,bcm53018-srab",
+ "brcm,bcm53019-srab",
+ "brcm,bcm5301x-srab",
+ "brcm,bcm11360-srab",
+ "brcm,bcm58522-srab",
+ "brcm,bcm58525-srab",
+ "brcm,bcm58535-srab",
+ "brcm,bcm58622-srab",
+ "brcm,bcm58623-srab",
+ "brcm,bcm58625-srab",
+ "brcm,bcm88312-srab",
+ "brcm,cygnus-srab",
+ "brcm,nsp-srab",
+ "brcm,omega-srab",
+ "brcm,bcm3384-switch",
+ "brcm,bcm6328-switch",
+ "brcm,bcm6368-switch",
+ "brcm,bcm63xx-switch",
+#endif
+#if IS_ENABLED(CONFIG_NET_DSA_BCM_SF2)
+ "brcm,bcm7445-switch-v4.0",
+ "brcm,bcm7278-switch-v4.0",
+ "brcm,bcm7278-switch-v4.8",
+#endif
+#if IS_ENABLED(CONFIG_NET_DSA_LANTIQ_GSWIP)
+ "lantiq,xrx200-gswip",
+ "lantiq,xrx300-gswip",
+ "lantiq,xrx330-gswip",
+#endif
+#if IS_ENABLED(CONFIG_NET_DSA_MV88E6060)
+ "marvell,mv88e6060",
+#endif
+#if IS_ENABLED(CONFIG_NET_DSA_MV88E6XXX)
+ "marvell,mv88e6085",
+ "marvell,mv88e6190",
+ "marvell,mv88e6250",
+#endif
+#if IS_ENABLED(CONFIG_NET_DSA_MICROCHIP_KSZ_COMMON)
+ "microchip,ksz8765",
+ "microchip,ksz8794",
+ "microchip,ksz8795",
+ "microchip,ksz8863",
+ "microchip,ksz8873",
+ "microchip,ksz9477",
+ "microchip,ksz9897",
+ "microchip,ksz9893",
+ "microchip,ksz9563",
+ "microchip,ksz8563",
+ "microchip,ksz9567",
+#endif
+#if IS_ENABLED(CONFIG_NET_DSA_SMSC_LAN9303_MDIO)
+ "smsc,lan9303-mdio",
+#endif
+#if IS_ENABLED(CONFIG_NET_DSA_SMSC_LAN9303_I2C)
+ "smsc,lan9303-i2c",
+#endif
+ NULL,
+};
+
+static void dsa_shared_port_validate_of(struct dsa_port *dp,
+ bool *missing_phy_mode,
+ bool *missing_link_description)
{
+ struct device_node *dn = dp->dn, *phy_np;
struct dsa_switch *ds = dp->ds;
- struct device_node *phy_np;
+ phy_interface_t mode;
+
+ *missing_phy_mode = false;
+ *missing_link_description = false;
+
+ if (of_get_phy_mode(dn, &mode)) {
+ *missing_phy_mode = true;
+ dev_err(ds->dev,
+ "OF node %pOF of %s port %d lacks the required \"phy-mode\" property\n",
+ dn, dsa_port_is_cpu(dp) ? "CPU" : "DSA", dp->index);
+ }
+
+ /* Note: of_phy_is_fixed_link() also returns true for
+ * managed = "in-band-status"
+ */
+ if (of_phy_is_fixed_link(dn))
+ return;
+
+ phy_np = of_parse_phandle(dn, "phy-handle", 0);
+ if (phy_np) {
+ of_node_put(phy_np);
+ return;
+ }
+
+ *missing_link_description = true;
+
+ dev_err(ds->dev,
+ "OF node %pOF of %s port %d lacks the required \"phy-handle\", \"fixed-link\" or \"managed\" properties\n",
+ dn, dsa_port_is_cpu(dp) ? "CPU" : "DSA", dp->index);
+}
+
+int dsa_shared_port_link_register_of(struct dsa_port *dp)
+{
+ struct dsa_switch *ds = dp->ds;
+ bool missing_link_description;
+ bool missing_phy_mode;
int port = dp->index;
+ dsa_shared_port_validate_of(dp, &missing_phy_mode,
+ &missing_link_description);
+
+ if ((missing_phy_mode || missing_link_description) &&
+ !of_device_compatible_match(ds->dev->of_node,
+ dsa_switches_apply_workarounds))
+ return -EINVAL;
+
if (!ds->ops->adjust_link) {
- phy_np = of_parse_phandle(dp->dn, "phy-handle", 0);
- if (of_phy_is_fixed_link(dp->dn) || phy_np) {
+ if (missing_link_description) {
+ dev_warn(ds->dev,
+ "Skipping phylink registration for %s port %d\n",
+ dsa_port_is_cpu(dp) ? "CPU" : "DSA", dp->index);
+ } else {
if (ds->ops->phylink_mac_link_down)
ds->ops->phylink_mac_link_down(ds, port,
MLO_AN_FIXED, PHY_INTERFACE_MODE_NA);
- of_node_put(phy_np);
- return dsa_port_phylink_register(dp);
+
+ return dsa_shared_port_phylink_register(dp);
}
- of_node_put(phy_np);
return 0;
}
@@ -1676,12 +1979,12 @@ int dsa_port_link_register_of(struct dsa_port *dp)
"Using legacy PHYLIB callbacks. Please migrate to PHYLINK!\n");
if (of_phy_is_fixed_link(dp->dn))
- return dsa_port_fixed_link_register_of(dp);
+ return dsa_shared_port_fixed_link_register_of(dp);
else
- return dsa_port_setup_phy_of(dp, true);
+ return dsa_shared_port_setup_phy_of(dp, true);
}
-void dsa_port_link_unregister_of(struct dsa_port *dp)
+void dsa_shared_port_link_unregister_of(struct dsa_port *dp)
{
struct dsa_switch *ds = dp->ds;
@@ -1689,15 +1992,14 @@ void dsa_port_link_unregister_of(struct dsa_port *dp)
rtnl_lock();
phylink_disconnect_phy(dp->pl);
rtnl_unlock();
- phylink_destroy(dp->pl);
- dp->pl = NULL;
+ dsa_port_phylink_destroy(dp);
return;
}
if (of_phy_is_fixed_link(dp->dn))
of_phy_deregister_fixed_link(dp->dn);
else
- dsa_port_setup_phy_of(dp, false);
+ dsa_shared_port_setup_phy_of(dp, false);
}
int dsa_port_hsr_join(struct dsa_port *dp, struct net_device *hsr)
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 1291c2431d44..1a59918d3b30 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -164,6 +164,48 @@ static int dsa_slave_unsync_mc(struct net_device *dev,
return dsa_slave_schedule_standalone_work(dev, DSA_MC_DEL, addr, 0);
}
+void dsa_slave_sync_ha(struct net_device *dev)
+{
+ struct dsa_port *dp = dsa_slave_to_port(dev);
+ struct dsa_switch *ds = dp->ds;
+ struct netdev_hw_addr *ha;
+
+ netif_addr_lock_bh(dev);
+
+ netdev_for_each_synced_mc_addr(ha, dev)
+ dsa_slave_sync_mc(dev, ha->addr);
+
+ netdev_for_each_synced_uc_addr(ha, dev)
+ dsa_slave_sync_uc(dev, ha->addr);
+
+ netif_addr_unlock_bh(dev);
+
+ if (dsa_switch_supports_uc_filtering(ds) ||
+ dsa_switch_supports_mc_filtering(ds))
+ dsa_flush_workqueue();
+}
+
+void dsa_slave_unsync_ha(struct net_device *dev)
+{
+ struct dsa_port *dp = dsa_slave_to_port(dev);
+ struct dsa_switch *ds = dp->ds;
+ struct netdev_hw_addr *ha;
+
+ netif_addr_lock_bh(dev);
+
+ netdev_for_each_synced_uc_addr(ha, dev)
+ dsa_slave_unsync_uc(dev, ha->addr);
+
+ netdev_for_each_synced_mc_addr(ha, dev)
+ dsa_slave_unsync_mc(dev, ha->addr);
+
+ netif_addr_unlock_bh(dev);
+
+ if (dsa_switch_supports_uc_filtering(ds) ||
+ dsa_switch_supports_mc_filtering(ds))
+ dsa_flush_workqueue();
+}
+
/* slave mii_bus handling ***************************************************/
static int dsa_slave_phy_read(struct mii_bus *bus, int addr, int reg)
{
@@ -826,9 +868,9 @@ static netdev_tx_t dsa_slave_xmit(struct sk_buff *skb, struct net_device *dev)
static void dsa_slave_get_drvinfo(struct net_device *dev,
struct ethtool_drvinfo *drvinfo)
{
- strlcpy(drvinfo->driver, "dsa", sizeof(drvinfo->driver));
- strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version));
- strlcpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info));
+ strscpy(drvinfo->driver, "dsa", sizeof(drvinfo->driver));
+ strscpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version));
+ strscpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info));
}
static int dsa_slave_get_regs_len(struct net_device *dev)
@@ -1503,8 +1545,7 @@ static int dsa_slave_setup_tc_block(struct net_device *dev,
static int dsa_slave_setup_ft_block(struct dsa_switch *ds, int port,
void *type_data)
{
- struct dsa_port *cpu_dp = dsa_to_port(ds, port)->cpu_dp;
- struct net_device *master = cpu_dp->master;
+ struct net_device *master = dsa_port_to_master(dsa_to_port(ds, port));
if (!master->netdev_ops->ndo_setup_tc)
return -EOPNOTSUPP;
@@ -2147,13 +2188,14 @@ static int dsa_slave_fill_forward_path(struct net_device_path_ctx *ctx,
struct net_device_path *path)
{
struct dsa_port *dp = dsa_slave_to_port(ctx->dev);
+ struct net_device *master = dsa_port_to_master(dp);
struct dsa_port *cpu_dp = dp->cpu_dp;
path->dev = ctx->dev;
path->type = DEV_PATH_DSA;
path->dsa.proto = cpu_dp->tag_ops->proto;
path->dsa.port = dp->index;
- ctx->dev = cpu_dp->master;
+ ctx->dev = master;
return 0;
}
@@ -2262,7 +2304,7 @@ static int dsa_slave_phy_setup(struct net_device *slave_dev)
if (ret) {
netdev_err(slave_dev, "failed to connect to PHY: %pe\n",
ERR_PTR(ret));
- phylink_destroy(dp->pl);
+ dsa_port_phylink_destroy(dp);
}
return ret;
@@ -2271,9 +2313,9 @@ static int dsa_slave_phy_setup(struct net_device *slave_dev)
void dsa_slave_setup_tagger(struct net_device *slave)
{
struct dsa_port *dp = dsa_slave_to_port(slave);
+ struct net_device *master = dsa_port_to_master(dp);
struct dsa_slave_priv *p = netdev_priv(slave);
const struct dsa_port *cpu_dp = dp->cpu_dp;
- struct net_device *master = cpu_dp->master;
const struct dsa_switch *ds = dp->ds;
slave->needed_headroom = cpu_dp->tag_ops->needed_headroom;
@@ -2330,8 +2372,7 @@ int dsa_slave_resume(struct net_device *slave_dev)
int dsa_slave_create(struct dsa_port *port)
{
- const struct dsa_port *cpu_dp = port->cpu_dp;
- struct net_device *master = cpu_dp->master;
+ struct net_device *master = dsa_port_to_master(port);
struct dsa_switch *ds = port->ds;
const char *name = port->name;
struct net_device *slave_dev;
@@ -2347,6 +2388,7 @@ int dsa_slave_create(struct dsa_port *port)
if (slave_dev == NULL)
return -ENOMEM;
+ slave_dev->rtnl_link_ops = &dsa_link_ops;
slave_dev->ethtool_ops = &dsa_slave_ethtool_ops;
#if IS_ENABLED(CONFIG_DCB)
slave_dev->dcbnl_ops = &dsa_slave_dcbnl_ops;
@@ -2434,7 +2476,7 @@ out_phy:
rtnl_lock();
phylink_disconnect_phy(p->dp->pl);
rtnl_unlock();
- phylink_destroy(p->dp->pl);
+ dsa_port_phylink_destroy(p->dp);
out_gcells:
gro_cells_destroy(&p->gcells);
out_free:
@@ -2457,12 +2499,89 @@ void dsa_slave_destroy(struct net_device *slave_dev)
phylink_disconnect_phy(dp->pl);
rtnl_unlock();
- phylink_destroy(dp->pl);
+ dsa_port_phylink_destroy(dp);
gro_cells_destroy(&p->gcells);
free_percpu(slave_dev->tstats);
free_netdev(slave_dev);
}
+int dsa_slave_change_master(struct net_device *dev, struct net_device *master,
+ struct netlink_ext_ack *extack)
+{
+ struct net_device *old_master = dsa_slave_to_master(dev);
+ struct dsa_port *dp = dsa_slave_to_port(dev);
+ struct dsa_switch *ds = dp->ds;
+ struct net_device *upper;
+ struct list_head *iter;
+ int err;
+
+ if (master == old_master)
+ return 0;
+
+ if (!ds->ops->port_change_master) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Driver does not support changing DSA master");
+ return -EOPNOTSUPP;
+ }
+
+ if (!netdev_uses_dsa(master)) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Interface not eligible as DSA master");
+ return -EOPNOTSUPP;
+ }
+
+ netdev_for_each_upper_dev_rcu(master, upper, iter) {
+ if (dsa_slave_dev_check(upper))
+ continue;
+ if (netif_is_bridge_master(upper))
+ continue;
+ NL_SET_ERR_MSG_MOD(extack, "Cannot join master with unknown uppers");
+ return -EOPNOTSUPP;
+ }
+
+ /* Since we allow live-changing the DSA master, plus we auto-open the
+ * DSA master when the user port opens => we need to ensure that the
+ * new DSA master is open too.
+ */
+ if (dev->flags & IFF_UP) {
+ err = dev_open(master, extack);
+ if (err)
+ return err;
+ }
+
+ netdev_upper_dev_unlink(old_master, dev);
+
+ err = netdev_upper_dev_link(master, dev, extack);
+ if (err)
+ goto out_revert_old_master_unlink;
+
+ err = dsa_port_change_master(dp, master, extack);
+ if (err)
+ goto out_revert_master_link;
+
+ /* Update the MTU of the new CPU port through cross-chip notifiers */
+ err = dsa_slave_change_mtu(dev, dev->mtu);
+ if (err && err != -EOPNOTSUPP) {
+ netdev_warn(dev,
+ "nonfatal error updating MTU with new master: %pe\n",
+ ERR_PTR(err));
+ }
+
+ /* If the port doesn't have its own MAC address and relies on the DSA
+ * master's one, inherit it again from the new DSA master.
+ */
+ if (is_zero_ether_addr(dp->mac))
+ eth_hw_addr_inherit(dev, master);
+
+ return 0;
+
+out_revert_master_link:
+ netdev_upper_dev_unlink(master, dev);
+out_revert_old_master_unlink:
+ netdev_upper_dev_link(old_master, dev, NULL);
+ return err;
+}
+
bool dsa_slave_dev_check(const struct net_device *dev)
{
return dev->netdev_ops == &dsa_slave_netdev_ops;
@@ -2476,6 +2595,9 @@ static int dsa_slave_changeupper(struct net_device *dev,
struct netlink_ext_ack *extack;
int err = NOTIFY_DONE;
+ if (!dsa_slave_dev_check(dev))
+ return err;
+
extack = netdev_notifier_info_to_extack(&info->info);
if (netif_is_bridge_master(info->upper_dev)) {
@@ -2531,6 +2653,9 @@ static int dsa_slave_prechangeupper(struct net_device *dev,
{
struct dsa_port *dp = dsa_slave_to_port(dev);
+ if (!dsa_slave_dev_check(dev))
+ return NOTIFY_DONE;
+
if (netif_is_bridge_master(info->upper_dev) && !info->linking)
dsa_port_pre_bridge_leave(dp, info->upper_dev);
else if (netif_is_lag_master(info->upper_dev) && !info->linking)
@@ -2551,6 +2676,9 @@ dsa_slave_lag_changeupper(struct net_device *dev,
int err = NOTIFY_DONE;
struct dsa_port *dp;
+ if (!netif_is_lag_master(dev))
+ return err;
+
netdev_for_each_lower_dev(dev, lower, iter) {
if (!dsa_slave_dev_check(lower))
continue;
@@ -2580,6 +2708,9 @@ dsa_slave_lag_prechangeupper(struct net_device *dev,
int err = NOTIFY_DONE;
struct dsa_port *dp;
+ if (!netif_is_lag_master(dev))
+ return err;
+
netdev_for_each_lower_dev(dev, lower, iter) {
if (!dsa_slave_dev_check(lower))
continue;
@@ -2687,6 +2818,277 @@ dsa_slave_prechangeupper_sanity_check(struct net_device *dev,
return NOTIFY_DONE;
}
+/* To be eligible as a DSA master, a LAG must have all lower interfaces be
+ * eligible DSA masters. Additionally, all LAG slaves must be DSA masters of
+ * switches in the same switch tree.
+ */
+static int dsa_lag_master_validate(struct net_device *lag_dev,
+ struct netlink_ext_ack *extack)
+{
+ struct net_device *lower1, *lower2;
+ struct list_head *iter1, *iter2;
+
+ netdev_for_each_lower_dev(lag_dev, lower1, iter1) {
+ netdev_for_each_lower_dev(lag_dev, lower2, iter2) {
+ if (!netdev_uses_dsa(lower1) ||
+ !netdev_uses_dsa(lower2)) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "All LAG ports must be eligible as DSA masters");
+ return notifier_from_errno(-EINVAL);
+ }
+
+ if (lower1 == lower2)
+ continue;
+
+ if (!dsa_port_tree_same(lower1->dsa_ptr,
+ lower2->dsa_ptr)) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "LAG contains DSA masters of disjoint switch trees");
+ return notifier_from_errno(-EINVAL);
+ }
+ }
+ }
+
+ return NOTIFY_DONE;
+}
+
+static int
+dsa_master_prechangeupper_sanity_check(struct net_device *master,
+ struct netdev_notifier_changeupper_info *info)
+{
+ struct netlink_ext_ack *extack = netdev_notifier_info_to_extack(&info->info);
+
+ if (!netdev_uses_dsa(master))
+ return NOTIFY_DONE;
+
+ if (!info->linking)
+ return NOTIFY_DONE;
+
+ /* Allow DSA switch uppers */
+ if (dsa_slave_dev_check(info->upper_dev))
+ return NOTIFY_DONE;
+
+ /* Allow bridge uppers of DSA masters, subject to further
+ * restrictions in dsa_bridge_prechangelower_sanity_check()
+ */
+ if (netif_is_bridge_master(info->upper_dev))
+ return NOTIFY_DONE;
+
+ /* Allow LAG uppers, subject to further restrictions in
+ * dsa_lag_master_prechangelower_sanity_check()
+ */
+ if (netif_is_lag_master(info->upper_dev))
+ return dsa_lag_master_validate(info->upper_dev, extack);
+
+ NL_SET_ERR_MSG_MOD(extack,
+ "DSA master cannot join unknown upper interfaces");
+ return notifier_from_errno(-EBUSY);
+}
+
+static int
+dsa_lag_master_prechangelower_sanity_check(struct net_device *dev,
+ struct netdev_notifier_changeupper_info *info)
+{
+ struct netlink_ext_ack *extack = netdev_notifier_info_to_extack(&info->info);
+ struct net_device *lag_dev = info->upper_dev;
+ struct net_device *lower;
+ struct list_head *iter;
+
+ if (!netdev_uses_dsa(lag_dev) || !netif_is_lag_master(lag_dev))
+ return NOTIFY_DONE;
+
+ if (!info->linking)
+ return NOTIFY_DONE;
+
+ if (!netdev_uses_dsa(dev)) {
+ NL_SET_ERR_MSG(extack,
+ "Only DSA masters can join a LAG DSA master");
+ return notifier_from_errno(-EINVAL);
+ }
+
+ netdev_for_each_lower_dev(lag_dev, lower, iter) {
+ if (!dsa_port_tree_same(dev->dsa_ptr, lower->dsa_ptr)) {
+ NL_SET_ERR_MSG(extack,
+ "Interface is DSA master for a different switch tree than this LAG");
+ return notifier_from_errno(-EINVAL);
+ }
+
+ break;
+ }
+
+ return NOTIFY_DONE;
+}
+
+/* Don't allow bridging of DSA masters, since the bridge layer rx_handler
+ * prevents the DSA fake ethertype handler to be invoked, so we don't get the
+ * chance to strip off and parse the DSA switch tag protocol header (the bridge
+ * layer just returns RX_HANDLER_CONSUMED, stopping RX processing for these
+ * frames).
+ * The only case where that would not be an issue is when bridging can already
+ * be offloaded, such as when the DSA master is itself a DSA or plain switchdev
+ * port, and is bridged only with other ports from the same hardware device.
+ */
+static int
+dsa_bridge_prechangelower_sanity_check(struct net_device *new_lower,
+ struct netdev_notifier_changeupper_info *info)
+{
+ struct net_device *br = info->upper_dev;
+ struct netlink_ext_ack *extack;
+ struct net_device *lower;
+ struct list_head *iter;
+
+ if (!netif_is_bridge_master(br))
+ return NOTIFY_DONE;
+
+ if (!info->linking)
+ return NOTIFY_DONE;
+
+ extack = netdev_notifier_info_to_extack(&info->info);
+
+ netdev_for_each_lower_dev(br, lower, iter) {
+ if (!netdev_uses_dsa(new_lower) && !netdev_uses_dsa(lower))
+ continue;
+
+ if (!netdev_port_same_parent_id(lower, new_lower)) {
+ NL_SET_ERR_MSG(extack,
+ "Cannot do software bridging with a DSA master");
+ return notifier_from_errno(-EINVAL);
+ }
+ }
+
+ return NOTIFY_DONE;
+}
+
+static void dsa_tree_migrate_ports_from_lag_master(struct dsa_switch_tree *dst,
+ struct net_device *lag_dev)
+{
+ struct net_device *new_master = dsa_tree_find_first_master(dst);
+ struct dsa_port *dp;
+ int err;
+
+ dsa_tree_for_each_user_port(dp, dst) {
+ if (dsa_port_to_master(dp) != lag_dev)
+ continue;
+
+ err = dsa_slave_change_master(dp->slave, new_master, NULL);
+ if (err) {
+ netdev_err(dp->slave,
+ "failed to restore master to %s: %pe\n",
+ new_master->name, ERR_PTR(err));
+ }
+ }
+}
+
+static int dsa_master_lag_join(struct net_device *master,
+ struct net_device *lag_dev,
+ struct netdev_lag_upper_info *uinfo,
+ struct netlink_ext_ack *extack)
+{
+ struct dsa_port *cpu_dp = master->dsa_ptr;
+ struct dsa_switch_tree *dst = cpu_dp->dst;
+ struct dsa_port *dp;
+ int err;
+
+ err = dsa_master_lag_setup(lag_dev, cpu_dp, uinfo, extack);
+ if (err)
+ return err;
+
+ dsa_tree_for_each_user_port(dp, dst) {
+ if (dsa_port_to_master(dp) != master)
+ continue;
+
+ err = dsa_slave_change_master(dp->slave, lag_dev, extack);
+ if (err)
+ goto restore;
+ }
+
+ return 0;
+
+restore:
+ dsa_tree_for_each_user_port_continue_reverse(dp, dst) {
+ if (dsa_port_to_master(dp) != lag_dev)
+ continue;
+
+ err = dsa_slave_change_master(dp->slave, master, NULL);
+ if (err) {
+ netdev_err(dp->slave,
+ "failed to restore master to %s: %pe\n",
+ master->name, ERR_PTR(err));
+ }
+ }
+
+ dsa_master_lag_teardown(lag_dev, master->dsa_ptr);
+
+ return err;
+}
+
+static void dsa_master_lag_leave(struct net_device *master,
+ struct net_device *lag_dev)
+{
+ struct dsa_port *dp, *cpu_dp = lag_dev->dsa_ptr;
+ struct dsa_switch_tree *dst = cpu_dp->dst;
+ struct dsa_port *new_cpu_dp = NULL;
+ struct net_device *lower;
+ struct list_head *iter;
+
+ netdev_for_each_lower_dev(lag_dev, lower, iter) {
+ if (netdev_uses_dsa(lower)) {
+ new_cpu_dp = lower->dsa_ptr;
+ break;
+ }
+ }
+
+ if (new_cpu_dp) {
+ /* Update the CPU port of the user ports still under the LAG
+ * so that dsa_port_to_master() continues to work properly
+ */
+ dsa_tree_for_each_user_port(dp, dst)
+ if (dsa_port_to_master(dp) == lag_dev)
+ dp->cpu_dp = new_cpu_dp;
+
+ /* Update the index of the virtual CPU port to match the lowest
+ * physical CPU port
+ */
+ lag_dev->dsa_ptr = new_cpu_dp;
+ wmb();
+ } else {
+ /* If the LAG DSA master has no ports left, migrate back all
+ * user ports to the first physical CPU port
+ */
+ dsa_tree_migrate_ports_from_lag_master(dst, lag_dev);
+ }
+
+ /* This DSA master has left its LAG in any case, so let
+ * the CPU port leave the hardware LAG as well
+ */
+ dsa_master_lag_teardown(lag_dev, master->dsa_ptr);
+}
+
+static int dsa_master_changeupper(struct net_device *dev,
+ struct netdev_notifier_changeupper_info *info)
+{
+ struct netlink_ext_ack *extack;
+ int err = NOTIFY_DONE;
+
+ if (!netdev_uses_dsa(dev))
+ return err;
+
+ extack = netdev_notifier_info_to_extack(&info->info);
+
+ if (netif_is_lag_master(info->upper_dev)) {
+ if (info->linking) {
+ err = dsa_master_lag_join(dev, info->upper_dev,
+ info->upper_info, extack);
+ err = notifier_from_errno(err);
+ } else {
+ dsa_master_lag_leave(dev, info->upper_dev);
+ err = NOTIFY_OK;
+ }
+ }
+
+ return err;
+}
+
static int dsa_slave_netdevice_event(struct notifier_block *nb,
unsigned long event, void *ptr)
{
@@ -2698,36 +3100,68 @@ static int dsa_slave_netdevice_event(struct notifier_block *nb,
int err;
err = dsa_slave_prechangeupper_sanity_check(dev, info);
- if (err != NOTIFY_DONE)
+ if (notifier_to_errno(err))
+ return err;
+
+ err = dsa_master_prechangeupper_sanity_check(dev, info);
+ if (notifier_to_errno(err))
+ return err;
+
+ err = dsa_lag_master_prechangelower_sanity_check(dev, info);
+ if (notifier_to_errno(err))
+ return err;
+
+ err = dsa_bridge_prechangelower_sanity_check(dev, info);
+ if (notifier_to_errno(err))
return err;
- if (dsa_slave_dev_check(dev))
- return dsa_slave_prechangeupper(dev, ptr);
+ err = dsa_slave_prechangeupper(dev, ptr);
+ if (notifier_to_errno(err))
+ return err;
- if (netif_is_lag_master(dev))
- return dsa_slave_lag_prechangeupper(dev, ptr);
+ err = dsa_slave_lag_prechangeupper(dev, ptr);
+ if (notifier_to_errno(err))
+ return err;
break;
}
- case NETDEV_CHANGEUPPER:
- if (dsa_slave_dev_check(dev))
- return dsa_slave_changeupper(dev, ptr);
+ case NETDEV_CHANGEUPPER: {
+ int err;
- if (netif_is_lag_master(dev))
- return dsa_slave_lag_changeupper(dev, ptr);
+ err = dsa_slave_changeupper(dev, ptr);
+ if (notifier_to_errno(err))
+ return err;
+
+ err = dsa_slave_lag_changeupper(dev, ptr);
+ if (notifier_to_errno(err))
+ return err;
+
+ err = dsa_master_changeupper(dev, ptr);
+ if (notifier_to_errno(err))
+ return err;
break;
+ }
case NETDEV_CHANGELOWERSTATE: {
struct netdev_notifier_changelowerstate_info *info = ptr;
struct dsa_port *dp;
int err;
- if (!dsa_slave_dev_check(dev))
- break;
+ if (dsa_slave_dev_check(dev)) {
+ dp = dsa_slave_to_port(dev);
- dp = dsa_slave_to_port(dev);
+ err = dsa_port_lag_change(dp, info->lower_state_info);
+ }
+
+ /* Mirror LAG port events on DSA masters that are in
+ * a LAG towards their respective switch CPU ports
+ */
+ if (netdev_uses_dsa(dev)) {
+ dp = dev->dsa_ptr;
+
+ err = dsa_port_lag_change(dp, info->lower_state_info);
+ }
- err = dsa_port_lag_change(dp, info->lower_state_info);
return notifier_from_errno(err);
}
case NETDEV_CHANGE:
@@ -2777,6 +3211,9 @@ static int dsa_slave_netdevice_event(struct notifier_block *nb,
if (!dsa_port_is_user(dp))
continue;
+ if (dp->cpu_dp != cpu_dp)
+ continue;
+
list_add(&dp->slave->close_list, &close_list);
}
diff --git a/net/dsa/switch.c b/net/dsa/switch.c
index 4dfd68cf61c5..ce56acdba203 100644
--- a/net/dsa/switch.c
+++ b/net/dsa/switch.c
@@ -398,8 +398,15 @@ static int dsa_switch_host_fdb_add(struct dsa_switch *ds,
dsa_switch_for_each_port(dp, ds) {
if (dsa_port_host_address_match(dp, info->dp)) {
- err = dsa_port_do_fdb_add(dp, info->addr, info->vid,
- info->db);
+ if (dsa_port_is_cpu(dp) && info->dp->cpu_port_in_lag) {
+ err = dsa_switch_do_lag_fdb_add(ds, dp->lag,
+ info->addr,
+ info->vid,
+ info->db);
+ } else {
+ err = dsa_port_do_fdb_add(dp, info->addr,
+ info->vid, info->db);
+ }
if (err)
break;
}
@@ -419,8 +426,15 @@ static int dsa_switch_host_fdb_del(struct dsa_switch *ds,
dsa_switch_for_each_port(dp, ds) {
if (dsa_port_host_address_match(dp, info->dp)) {
- err = dsa_port_do_fdb_del(dp, info->addr, info->vid,
- info->db);
+ if (dsa_port_is_cpu(dp) && info->dp->cpu_port_in_lag) {
+ err = dsa_switch_do_lag_fdb_del(ds, dp->lag,
+ info->addr,
+ info->vid,
+ info->db);
+ } else {
+ err = dsa_port_do_fdb_del(dp, info->addr,
+ info->vid, info->db);
+ }
if (err)
break;
}
@@ -507,12 +521,12 @@ static int dsa_switch_lag_join(struct dsa_switch *ds,
{
if (info->dp->ds == ds && ds->ops->port_lag_join)
return ds->ops->port_lag_join(ds, info->dp->index, info->lag,
- info->info);
+ info->info, info->extack);
if (info->dp->ds != ds && ds->ops->crosschip_lag_join)
return ds->ops->crosschip_lag_join(ds, info->dp->ds->index,
info->dp->index, info->lag,
- info->info);
+ info->info, info->extack);
return -EOPNOTSUPP;
}
diff --git a/net/dsa/tag_8021q.c b/net/dsa/tag_8021q.c
index 01a427800797..34e5ec5d3e23 100644
--- a/net/dsa/tag_8021q.c
+++ b/net/dsa/tag_8021q.c
@@ -2,9 +2,7 @@
/* 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.
+ * primitives for taggers that rely on 802.1Q VLAN tags to use.
*/
#include <linux/if_vlan.h>
#include <linux/dsa/8021q.h>
@@ -332,7 +330,7 @@ static int dsa_tag_8021q_port_setup(struct dsa_switch *ds, int port)
if (!dsa_port_is_user(dp))
return 0;
- master = dp->cpu_dp->master;
+ master = dsa_port_to_master(dp);
err = dsa_port_tag_8021q_vlan_add(dp, vid, false);
if (err) {
@@ -361,7 +359,7 @@ static void dsa_tag_8021q_port_teardown(struct dsa_switch *ds, int port)
if (!dsa_port_is_user(dp))
return;
- master = dp->cpu_dp->master;
+ master = dsa_port_to_master(dp);
dsa_port_tag_8021q_vlan_del(dp, vid, false);
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-28 18:58:21 +0000