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-rw-r--r--drivers/net/ethernet/microchip/lan966x/lan966x_switchdev.c12
-rw-r--r--include/net/switchdev.h10
-rw-r--r--net/dsa/slave.c6
-rw-r--r--net/switchdev/switchdev.c80
4 files changed, 42 insertions, 66 deletions
diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_switchdev.c b/drivers/net/ethernet/microchip/lan966x/lan966x_switchdev.c
index 85099a51d4c7..e3555c94294d 100644
--- a/drivers/net/ethernet/microchip/lan966x/lan966x_switchdev.c
+++ b/drivers/net/ethernet/microchip/lan966x/lan966x_switchdev.c
@@ -419,6 +419,9 @@ static int lan966x_netdevice_event(struct notifier_block *nb,
return notifier_from_errno(ret);
}
+/* We don't offload uppers such as LAG as bridge ports, so every device except
+ * the bridge itself is foreign.
+ */
static bool lan966x_foreign_dev_check(const struct net_device *dev,
const struct net_device *foreign_dev)
{
@@ -426,10 +429,10 @@ static bool lan966x_foreign_dev_check(const struct net_device *dev,
struct lan966x *lan966x = port->lan966x;
if (netif_is_bridge_master(foreign_dev))
- if (lan966x->bridge != foreign_dev)
- return true;
+ if (lan966x->bridge == foreign_dev)
+ return false;
- return false;
+ return true;
}
static int lan966x_switchdev_event(struct notifier_block *nb,
@@ -449,8 +452,7 @@ static int lan966x_switchdev_event(struct notifier_block *nb,
err = switchdev_handle_fdb_event_to_device(dev, event, ptr,
lan966x_netdevice_check,
lan966x_foreign_dev_check,
- lan966x_handle_fdb,
- NULL);
+ lan966x_handle_fdb);
return notifier_from_errno(err);
}
diff --git a/include/net/switchdev.h b/include/net/switchdev.h
index c32e1c8f79ec..3e424d40fae3 100644
--- a/include/net/switchdev.h
+++ b/include/net/switchdev.h
@@ -313,10 +313,7 @@ int switchdev_handle_fdb_event_to_device(struct net_device *dev, unsigned long e
const struct net_device *foreign_dev),
int (*mod_cb)(struct net_device *dev, struct net_device *orig_dev,
unsigned long event, const void *ctx,
- const struct switchdev_notifier_fdb_info *fdb_info),
- int (*lag_mod_cb)(struct net_device *dev, struct net_device *orig_dev,
- unsigned long event, const void *ctx,
- const struct switchdev_notifier_fdb_info *fdb_info));
+ const struct switchdev_notifier_fdb_info *fdb_info));
int switchdev_handle_port_obj_add(struct net_device *dev,
struct switchdev_notifier_port_obj_info *port_obj_info,
@@ -443,10 +440,7 @@ switchdev_handle_fdb_event_to_device(struct net_device *dev, unsigned long event
const struct net_device *foreign_dev),
int (*mod_cb)(struct net_device *dev, struct net_device *orig_dev,
unsigned long event, const void *ctx,
- const struct switchdev_notifier_fdb_info *fdb_info),
- int (*lag_mod_cb)(struct net_device *dev, struct net_device *orig_dev,
- unsigned long event, const void *ctx,
- const struct switchdev_notifier_fdb_info *fdb_info))
+ const struct switchdev_notifier_fdb_info *fdb_info))
{
return 0;
}
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index e31c7710fee9..4ea6e0fd4b99 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -2461,6 +2461,9 @@ static int dsa_slave_fdb_event(struct net_device *dev,
bool host_addr = fdb_info->is_local;
struct dsa_switch *ds = dp->ds;
+ if (dp->lag)
+ return -EOPNOTSUPP;
+
if (ctx && ctx != dp)
return 0;
@@ -2526,8 +2529,7 @@ static int dsa_slave_switchdev_event(struct notifier_block *unused,
err = switchdev_handle_fdb_event_to_device(dev, event, ptr,
dsa_slave_dev_check,
dsa_foreign_dev_check,
- dsa_slave_fdb_event,
- NULL);
+ dsa_slave_fdb_event);
return notifier_from_errno(err);
default:
return NOTIFY_DONE;
diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c
index 28d2ccfe109c..474f76383033 100644
--- a/net/switchdev/switchdev.c
+++ b/net/switchdev/switchdev.c
@@ -458,63 +458,40 @@ static int __switchdev_handle_fdb_event_to_device(struct net_device *dev,
const struct net_device *foreign_dev),
int (*mod_cb)(struct net_device *dev, struct net_device *orig_dev,
unsigned long event, const void *ctx,
- const struct switchdev_notifier_fdb_info *fdb_info),
- int (*lag_mod_cb)(struct net_device *dev, struct net_device *orig_dev,
- unsigned long event, const void *ctx,
- const struct switchdev_notifier_fdb_info *fdb_info))
+ const struct switchdev_notifier_fdb_info *fdb_info))
{
const struct switchdev_notifier_info *info = &fdb_info->info;
- struct net_device *br, *lower_dev;
+ struct net_device *br, *lower_dev, *switchdev;
struct list_head *iter;
int err = -EOPNOTSUPP;
if (check_cb(dev))
return mod_cb(dev, orig_dev, event, info->ctx, fdb_info);
- if (netif_is_lag_master(dev)) {
- if (!switchdev_lower_dev_find_rcu(dev, check_cb, foreign_dev_check_cb))
- goto maybe_bridged_with_us;
-
- /* This is a LAG interface that we offload */
- if (!lag_mod_cb)
- return -EOPNOTSUPP;
-
- return lag_mod_cb(dev, orig_dev, event, info->ctx, fdb_info);
- }
-
/* Recurse through lower interfaces in case the FDB entry is pointing
- * towards a bridge device.
+ * towards a bridge or a LAG device.
*/
- if (netif_is_bridge_master(dev)) {
- if (!switchdev_lower_dev_find_rcu(dev, check_cb, foreign_dev_check_cb))
- return 0;
-
- /* This is a bridge interface that we offload */
- netdev_for_each_lower_dev(dev, lower_dev, iter) {
- /* Do not propagate FDB entries across bridges */
- if (netif_is_bridge_master(lower_dev))
- continue;
-
- /* Bridge ports might be either us, or LAG interfaces
- * that we offload.
- */
- if (!check_cb(lower_dev) &&
- !switchdev_lower_dev_find_rcu(lower_dev, check_cb,
- foreign_dev_check_cb))
- continue;
-
- err = __switchdev_handle_fdb_event_to_device(lower_dev, orig_dev,
- event, fdb_info, check_cb,
- foreign_dev_check_cb,
- mod_cb, lag_mod_cb);
- if (err && err != -EOPNOTSUPP)
- return err;
- }
+ netdev_for_each_lower_dev(dev, lower_dev, iter) {
+ /* Do not propagate FDB entries across bridges */
+ if (netif_is_bridge_master(lower_dev))
+ continue;
- return 0;
+ /* Bridge ports might be either us, or LAG interfaces
+ * that we offload.
+ */
+ if (!check_cb(lower_dev) &&
+ !switchdev_lower_dev_find_rcu(lower_dev, check_cb,
+ foreign_dev_check_cb))
+ continue;
+
+ err = __switchdev_handle_fdb_event_to_device(lower_dev, orig_dev,
+ event, fdb_info, check_cb,
+ foreign_dev_check_cb,
+ mod_cb);
+ if (err && err != -EOPNOTSUPP)
+ return err;
}
-maybe_bridged_with_us:
/* Event is neither on a bridge nor a LAG. Check whether it is on an
* interface that is in a bridge with us.
*/
@@ -522,12 +499,16 @@ maybe_bridged_with_us:
if (!br || !netif_is_bridge_master(br))
return 0;
- if (!switchdev_lower_dev_find_rcu(br, check_cb, foreign_dev_check_cb))
+ switchdev = switchdev_lower_dev_find_rcu(br, check_cb, foreign_dev_check_cb);
+ if (!switchdev)
return 0;
+ if (!foreign_dev_check_cb(switchdev, dev))
+ return err;
+
return __switchdev_handle_fdb_event_to_device(br, orig_dev, event, fdb_info,
check_cb, foreign_dev_check_cb,
- mod_cb, lag_mod_cb);
+ mod_cb);
}
int switchdev_handle_fdb_event_to_device(struct net_device *dev, unsigned long event,
@@ -537,16 +518,13 @@ int switchdev_handle_fdb_event_to_device(struct net_device *dev, unsigned long e
const struct net_device *foreign_dev),
int (*mod_cb)(struct net_device *dev, struct net_device *orig_dev,
unsigned long event, const void *ctx,
- const struct switchdev_notifier_fdb_info *fdb_info),
- int (*lag_mod_cb)(struct net_device *dev, struct net_device *orig_dev,
- unsigned long event, const void *ctx,
- const struct switchdev_notifier_fdb_info *fdb_info))
+ const struct switchdev_notifier_fdb_info *fdb_info))
{
int err;
err = __switchdev_handle_fdb_event_to_device(dev, dev, event, fdb_info,
check_cb, foreign_dev_check_cb,
- mod_cb, lag_mod_cb);
+ mod_cb);
if (err == -EOPNOTSUPP)
err = 0;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.