diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c
index 23798feb40b274871938b1d26950d9702da2e6c1..9b090da3e4603abc8aabc5359884c5ec61cee954 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c
@@ -1930,8 +1930,13 @@ static int dpaa2_switch_port_bridge_join(struct net_device *netdev,
if (err)
goto err_egress_flood;
+ err = switchdev_bridge_port_offload(netdev, netdev, extack);
+ if (err)
+ goto err_switchdev_offload;
+
return 0;
+err_switchdev_offload:
err_egress_flood:
dpaa2_switch_port_set_fdb(port_priv, NULL);
return err;
@@ -1957,6 +1962,11 @@ static int dpaa2_switch_port_restore_rxvlan(struct net_device *vdev, int vid, vo
return dpaa2_switch_port_vlan_add(arg, vlan_proto, vid);
}
+static void dpaa2_switch_port_pre_bridge_leave(struct net_device *netdev)
+{
+ switchdev_bridge_port_unoffload(netdev);
+}
+
static int dpaa2_switch_port_bridge_leave(struct net_device *netdev)
{
struct ethsw_port_priv *port_priv = netdev_priv(netdev);
@@ -2078,6 +2088,9 @@ static int dpaa2_switch_port_netdevice_event(struct notifier_block *nb,
if (err)
goto out;
+ if (!info->linking)
+ dpaa2_switch_port_pre_bridge_leave(netdev);
+
break;
case NETDEV_CHANGEUPPER:
upper_dev = info->upper_dev;
diff --git a/drivers/net/ethernet/marvell/prestera/prestera_main.c b/drivers/net/ethernet/marvell/prestera/prestera_main.c
index 226f4ff29f6e512f436b4041178b9889889f3d66..7c569c1abefcb8a355c6c52a6e183bded93d36a4 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_main.c
+++ b/drivers/net/ethernet/marvell/prestera/prestera_main.c
@@ -746,7 +746,8 @@ static int prestera_netdev_port_event(struct net_device *lower,
case NETDEV_CHANGEUPPER:
if (netif_is_bridge_master(upper)) {
if (info->linking)
- return prestera_bridge_port_join(upper, port);
+ return prestera_bridge_port_join(upper, port,
+ extack);
else
prestera_bridge_port_leave(upper, port);
} else if (netif_is_lag_master(upper)) {
diff --git a/drivers/net/ethernet/marvell/prestera/prestera_switchdev.c b/drivers/net/ethernet/marvell/prestera/prestera_switchdev.c
index 0b3e8f2db294990b7abe1fc01f25fa49e8a5f2b4..8cf3fe3b7e588785c9442b11d2a57715a7de6139 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_switchdev.c
+++ b/drivers/net/ethernet/marvell/prestera/prestera_switchdev.c
@@ -480,7 +480,8 @@ prestera_bridge_1d_port_join(struct prestera_bridge_port *br_port)
}
int prestera_bridge_port_join(struct net_device *br_dev,
- struct prestera_port *port)
+ struct prestera_port *port,
+ struct netlink_ext_ack *extack)
{
struct prestera_switchdev *swdev = port->sw->swdev;
struct prestera_bridge_port *br_port;
@@ -500,6 +501,10 @@ int prestera_bridge_port_join(struct net_device *br_dev,
goto err_brport_create;
}
+ err = switchdev_bridge_port_offload(br_port->dev, port->dev, extack);
+ if (err)
+ goto err_switchdev_offload;
+
if (bridge->vlan_enabled)
return 0;
@@ -510,6 +515,8 @@ int prestera_bridge_port_join(struct net_device *br_dev,
return 0;
err_port_join:
+ switchdev_bridge_port_unoffload(br_port->dev);
+err_switchdev_offload:
prestera_bridge_port_put(br_port);
err_brport_create:
prestera_bridge_put(bridge);
@@ -584,6 +591,8 @@ void prestera_bridge_port_leave(struct net_device *br_dev,
else
prestera_bridge_1d_port_leave(br_port);
+ switchdev_bridge_port_unoffload(br_port->dev);
+
prestera_hw_port_learning_set(port, false);
prestera_hw_port_flood_set(port, BR_FLOOD | BR_MCAST_FLOOD, 0);
prestera_port_vid_stp_set(port, PRESTERA_VID_ALL, BR_STATE_FORWARDING);
diff --git a/drivers/net/ethernet/marvell/prestera/prestera_switchdev.h b/drivers/net/ethernet/marvell/prestera/prestera_switchdev.h
index a91bc35d235fe6a4eba45a811708e7eff6a6a54b..0e93fda3d9a5bb9371f77738b36f636cf5be763d 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_switchdev.h
+++ b/drivers/net/ethernet/marvell/prestera/prestera_switchdev.h
@@ -8,7 +8,8 @@ int prestera_switchdev_init(struct prestera_switch *sw);
void prestera_switchdev_fini(struct prestera_switch *sw);
int prestera_bridge_port_join(struct net_device *br_dev,
- struct prestera_port *port);
+ struct prestera_port *port,
+ struct netlink_ext_ack *extack);
void prestera_bridge_port_leave(struct net_device *br_dev,
struct prestera_port *port);
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
index 61911fed6aeb84883c08645d8d7eadbe4767823a..c52317de1f357bc31a1048bc213f58a145efd4af 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
@@ -335,14 +335,16 @@ mlxsw_sp_bridge_port_find(struct mlxsw_sp_bridge *bridge,
static struct mlxsw_sp_bridge_port *
mlxsw_sp_bridge_port_create(struct mlxsw_sp_bridge_device *bridge_device,
- struct net_device *brport_dev)
+ struct net_device *brport_dev,
+ struct netlink_ext_ack *extack)
{
struct mlxsw_sp_bridge_port *bridge_port;
struct mlxsw_sp_port *mlxsw_sp_port;
+ int err;
bridge_port = kzalloc(sizeof(*bridge_port), GFP_KERNEL);
if (!bridge_port)
- return NULL;
+ return ERR_PTR(-ENOMEM);
mlxsw_sp_port = mlxsw_sp_port_dev_lower_find(brport_dev);
bridge_port->lagged = mlxsw_sp_port->lagged;
@@ -359,12 +361,23 @@ mlxsw_sp_bridge_port_create(struct mlxsw_sp_bridge_device *bridge_device,
list_add(&bridge_port->list, &bridge_device->ports_list);
bridge_port->ref_count = 1;
+ err = switchdev_bridge_port_offload(brport_dev, mlxsw_sp_port->dev,
+ extack);
+ if (err)
+ goto err_switchdev_offload;
+
return bridge_port;
+
+err_switchdev_offload:
+ list_del(&bridge_port->list);
+ kfree(bridge_port);
+ return ERR_PTR(err);
}
static void
mlxsw_sp_bridge_port_destroy(struct mlxsw_sp_bridge_port *bridge_port)
{
+ switchdev_bridge_port_unoffload(bridge_port->dev);
list_del(&bridge_port->list);
WARN_ON(!list_empty(&bridge_port->vlans_list));
kfree(bridge_port);
@@ -390,9 +403,10 @@ mlxsw_sp_bridge_port_get(struct mlxsw_sp_bridge *bridge,
if (IS_ERR(bridge_device))
return ERR_CAST(bridge_device);
- bridge_port = mlxsw_sp_bridge_port_create(bridge_device, brport_dev);
- if (!bridge_port) {
- err = -ENOMEM;
+ bridge_port = mlxsw_sp_bridge_port_create(bridge_device, brport_dev,
+ extack);
+ if (IS_ERR(bridge_port)) {
+ err = PTR_ERR(bridge_port);
goto err_bridge_port_create;
}
diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_switchdev.c b/drivers/net/ethernet/microchip/sparx5/sparx5_switchdev.c
index a72e3b3b596e9504482f787b0bb931ee35506916..e4fb573563d067779d5384ad1df9f031ccd0eaca 100644
--- a/drivers/net/ethernet/microchip/sparx5/sparx5_switchdev.c
+++ b/drivers/net/ethernet/microchip/sparx5/sparx5_switchdev.c
@@ -93,9 +93,12 @@ static int sparx5_port_attr_set(struct net_device *dev, const void *ctx,
}
static int sparx5_port_bridge_join(struct sparx5_port *port,
- struct net_device *bridge)
+ struct net_device *bridge,
+ struct netlink_ext_ack *extack)
{
struct sparx5 *sparx5 = port->sparx5;
+ struct net_device *ndev = port->ndev;
+ int err;
if (bitmap_empty(sparx5->bridge_mask, SPX5_PORTS))
/* First bridged port */
@@ -109,12 +112,20 @@ static int sparx5_port_bridge_join(struct sparx5_port *port,
set_bit(port->portno, sparx5->bridge_mask);
+ err = switchdev_bridge_port_offload(ndev, ndev, extack);
+ if (err)
+ goto err_switchdev_offload;
+
/* Port enters in bridge mode therefor don't need to copy to CPU
* frames for multicast in case the bridge is not requesting them
*/
- __dev_mc_unsync(port->ndev, sparx5_mc_unsync);
+ __dev_mc_unsync(ndev, sparx5_mc_unsync);
return 0;
+
+err_switchdev_offload:
+ clear_bit(port->portno, sparx5->bridge_mask);
+ return err;
}
static void sparx5_port_bridge_leave(struct sparx5_port *port,
@@ -122,6 +133,8 @@ static void sparx5_port_bridge_leave(struct sparx5_port *port,
{
struct sparx5 *sparx5 = port->sparx5;
+ switchdev_bridge_port_unoffload(port->ndev);
+
clear_bit(port->portno, sparx5->bridge_mask);
if (bitmap_empty(sparx5->bridge_mask, SPX5_PORTS))
sparx5->hw_bridge_dev = NULL;
@@ -139,11 +152,15 @@ static int sparx5_port_changeupper(struct net_device *dev,
struct netdev_notifier_changeupper_info *info)
{
struct sparx5_port *port = netdev_priv(dev);
+ struct netlink_ext_ack *extack;
int err = 0;
+ extack = netdev_notifier_info_to_extack(&info->info);
+
if (netif_is_bridge_master(info->upper_dev)) {
if (info->linking)
- err = sparx5_port_bridge_join(port, info->upper_dev);
+ err = sparx5_port_bridge_join(port, info->upper_dev,
+ extack);
else
sparx5_port_bridge_leave(port, info->upper_dev);
diff --git a/drivers/net/ethernet/mscc/ocelot_net.c b/drivers/net/ethernet/mscc/ocelot_net.c
index e9d260d84bf33095d39e4847182f62978741a826..76b7b9536bf7d99a81a7e7d69860a6fed27a3473 100644
--- a/drivers/net/ethernet/mscc/ocelot_net.c
+++ b/drivers/net/ethernet/mscc/ocelot_net.c
@@ -1216,6 +1216,10 @@ static int ocelot_netdevice_bridge_join(struct net_device *dev,
ocelot_port_bridge_join(ocelot, port, bridge);
+ err = switchdev_bridge_port_offload(brport_dev, dev, extack);
+ if (err)
+ goto err_switchdev_offload;
+
err = ocelot_switchdev_sync(ocelot, port, brport_dev, bridge, extack);
if (err)
goto err_switchdev_sync;
@@ -1223,10 +1227,17 @@ static int ocelot_netdevice_bridge_join(struct net_device *dev,
return 0;
err_switchdev_sync:
+ switchdev_bridge_port_unoffload(brport_dev);
+err_switchdev_offload:
ocelot_port_bridge_leave(ocelot, port, bridge);
return err;
}
+static void ocelot_netdevice_pre_bridge_leave(struct net_device *brport_dev)
+{
+ switchdev_bridge_port_unoffload(brport_dev);
+}
+
static int ocelot_netdevice_bridge_leave(struct net_device *dev,
struct net_device *brport_dev,
struct net_device *bridge)
@@ -1279,6 +1290,18 @@ static int ocelot_netdevice_lag_join(struct net_device *dev,
return err;
}
+static void ocelot_netdevice_pre_lag_leave(struct net_device *dev,
+ struct net_device *bond)
+{
+ struct net_device *bridge_dev;
+
+ bridge_dev = netdev_master_upper_dev_get(bond);
+ if (!bridge_dev || !netif_is_bridge_master(bridge_dev))
+ return;
+
+ ocelot_netdevice_pre_bridge_leave(bond);
+}
+
static int ocelot_netdevice_lag_leave(struct net_device *dev,
struct net_device *bond)
{
@@ -1355,6 +1378,43 @@ ocelot_netdevice_lag_changeupper(struct net_device *dev,
return NOTIFY_DONE;
}
+static int
+ocelot_netdevice_prechangeupper(struct net_device *dev,
+ struct net_device *brport_dev,
+ struct netdev_notifier_changeupper_info *info)
+{
+ if (netif_is_bridge_master(info->upper_dev) && !info->linking)
+ ocelot_netdevice_pre_bridge_leave(brport_dev);
+
+ if (netif_is_lag_master(info->upper_dev) && !info->linking)
+ ocelot_netdevice_pre_lag_leave(dev, info->upper_dev);
+
+ return NOTIFY_DONE;
+}
+
+static int
+ocelot_netdevice_lag_prechangeupper(struct net_device *dev,
+ struct netdev_notifier_changeupper_info *info)
+{
+ struct net_device *lower;
+ struct list_head *iter;
+ int err = NOTIFY_DONE;
+
+ netdev_for_each_lower_dev(dev, lower, iter) {
+ struct ocelot_port_private *priv = netdev_priv(lower);
+ struct ocelot_port *ocelot_port = &priv->port;
+
+ if (ocelot_port->bond != dev)
+ return NOTIFY_OK;
+
+ err = ocelot_netdevice_prechangeupper(dev, lower, info);
+ if (err)
+ return err;
+ }
+
+ return NOTIFY_DONE;
+}
+
static int
ocelot_netdevice_changelowerstate(struct net_device *dev,
struct netdev_lag_lower_state_info *info)
@@ -1382,6 +1442,17 @@ static int ocelot_netdevice_event(struct notifier_block *unused,
struct net_device *dev = netdev_notifier_info_to_dev(ptr);
switch (event) {
+ case NETDEV_PRECHANGEUPPER: {
+ struct netdev_notifier_changeupper_info *info = ptr;
+
+ if (ocelot_netdevice_dev_check(dev))
+ return ocelot_netdevice_prechangeupper(dev, dev, info);
+
+ if (netif_is_lag_master(dev))
+ return ocelot_netdevice_lag_prechangeupper(dev, info);
+
+ break;
+ }
case NETDEV_CHANGEUPPER: {
struct netdev_notifier_changeupper_info *info = ptr;
diff --git a/drivers/net/ethernet/rocker/rocker.h b/drivers/net/ethernet/rocker/rocker.h
index 315a6e5c0f595a4e535f5e69201be8580925f346..e75814a4654f4f683de1dfe4dc7e160c9500e765 100644
--- a/drivers/net/ethernet/rocker/rocker.h
+++ b/drivers/net/ethernet/rocker/rocker.h
@@ -119,7 +119,8 @@ struct rocker_world_ops {
int (*port_obj_fdb_del)(struct rocker_port *rocker_port,
u16 vid, const unsigned char *addr);
int (*port_master_linked)(struct rocker_port *rocker_port,
- struct net_device *master);
+ struct net_device *master,
+ struct netlink_ext_ack *extack);
int (*port_master_unlinked)(struct rocker_port *rocker_port,
struct net_device *master);
int (*port_neigh_update)(struct rocker_port *rocker_port,
diff --git a/drivers/net/ethernet/rocker/rocker_main.c b/drivers/net/ethernet/rocker/rocker_main.c
index a46633606cae06327eaa823bdcbfc5b969093116..53d407a5dbf7988ba60438de4c93d6b47795e1f4 100644
--- a/drivers/net/ethernet/rocker/rocker_main.c
+++ b/drivers/net/ethernet/rocker/rocker_main.c
@@ -1670,13 +1670,14 @@ rocker_world_port_fdb_del(struct rocker_port *rocker_port,
}
static int rocker_world_port_master_linked(struct rocker_port *rocker_port,
- struct net_device *master)
+ struct net_device *master,
+ struct netlink_ext_ack *extack)
{
struct rocker_world_ops *wops = rocker_port->rocker->wops;
if (!wops->port_master_linked)
return -EOPNOTSUPP;
- return wops->port_master_linked(rocker_port, master);
+ return wops->port_master_linked(rocker_port, master, extack);
}
static int rocker_world_port_master_unlinked(struct rocker_port *rocker_port,
@@ -3107,6 +3108,7 @@ struct rocker_port *rocker_port_dev_lower_find(struct net_device *dev,
static int rocker_netdevice_event(struct notifier_block *unused,
unsigned long event, void *ptr)
{
+ struct netlink_ext_ack *extack = netdev_notifier_info_to_extack(ptr);
struct net_device *dev = netdev_notifier_info_to_dev(ptr);
struct netdev_notifier_changeupper_info *info;
struct rocker_port *rocker_port;
@@ -3123,7 +3125,8 @@ static int rocker_netdevice_event(struct notifier_block *unused,
rocker_port = netdev_priv(dev);
if (info->linking) {
err = rocker_world_port_master_linked(rocker_port,
- info->upper_dev);
+ info->upper_dev,
+ extack);
if (err)
netdev_warn(dev, "failed to reflect master linked (err %d)\n",
err);
diff --git a/drivers/net/ethernet/rocker/rocker_ofdpa.c b/drivers/net/ethernet/rocker/rocker_ofdpa.c
index 967a634ee9ac1b2e88c454f5b290bbc7482e09ee..84dcaf8687a0bd9a725672538e3d30ae7a68f554 100644
--- a/drivers/net/ethernet/rocker/rocker_ofdpa.c
+++ b/drivers/net/ethernet/rocker/rocker_ofdpa.c
@@ -2571,8 +2571,10 @@ static int ofdpa_port_obj_fdb_del(struct rocker_port *rocker_port,
}
static int ofdpa_port_bridge_join(struct ofdpa_port *ofdpa_port,
- struct net_device *bridge)
+ struct net_device *bridge,
+ struct netlink_ext_ack *extack)
{
+ struct net_device *dev = ofdpa_port->dev;
int err;
/* Port is joining bridge, so the internal VLAN for the
@@ -2592,13 +2594,20 @@ static int ofdpa_port_bridge_join(struct ofdpa_port *ofdpa_port,
ofdpa_port->bridge_dev = bridge;
- return ofdpa_port_vlan_add(ofdpa_port, OFDPA_UNTAGGED_VID, 0);
+ err = ofdpa_port_vlan_add(ofdpa_port, OFDPA_UNTAGGED_VID, 0);
+ if (err)
+ return err;
+
+ return switchdev_bridge_port_offload(dev, dev, extack);
}
static int ofdpa_port_bridge_leave(struct ofdpa_port *ofdpa_port)
{
+ struct net_device *dev = ofdpa_port->dev;
int err;
+ switchdev_bridge_port_unoffload(dev);
+
err = ofdpa_port_vlan_del(ofdpa_port, OFDPA_UNTAGGED_VID, 0);
if (err)
return err;
@@ -2637,13 +2646,14 @@ static int ofdpa_port_ovs_changed(struct ofdpa_port *ofdpa_port,
}
static int ofdpa_port_master_linked(struct rocker_port *rocker_port,
- struct net_device *master)
+ struct net_device *master,
+ struct netlink_ext_ack *extack)
{
struct ofdpa_port *ofdpa_port = rocker_port->wpriv;
int err = 0;
if (netif_is_bridge_master(master))
- err = ofdpa_port_bridge_join(ofdpa_port, master);
+ err = ofdpa_port_bridge_join(ofdpa_port, master, extack);
else if (netif_is_ovs_master(master))
err = ofdpa_port_ovs_changed(ofdpa_port, master);
return err;
diff --git a/drivers/net/ethernet/ti/am65-cpsw-nuss.c b/drivers/net/ethernet/ti/am65-cpsw-nuss.c
index 718539cdd2f2e6f70b0a1fd4a107b6ede29813d8..8b9596eb808eb58946ffbf33fddacbba44da3d86 100644
--- a/drivers/net/ethernet/ti/am65-cpsw-nuss.c
+++ b/drivers/net/ethernet/ti/am65-cpsw-nuss.c
@@ -7,6 +7,7 @@
#include <linux/clk.h>
#include <linux/etherdevice.h>
+#include <linux/if_bridge.h>
#include <linux/if_vlan.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
@@ -2077,10 +2078,13 @@ bool am65_cpsw_port_dev_check(const struct net_device *ndev)
return false;
}
-static int am65_cpsw_netdevice_port_link(struct net_device *ndev, struct net_device *br_ndev)
+static int am65_cpsw_netdevice_port_link(struct net_device *ndev,
+ struct net_device *br_ndev,
+ struct netlink_ext_ack *extack)
{
struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
struct am65_cpsw_ndev_priv *priv = am65_ndev_to_priv(ndev);
+ int err;
if (!common->br_members) {
common->hw_bridge_dev = br_ndev;
@@ -2092,6 +2096,10 @@ static int am65_cpsw_netdevice_port_link(struct net_device *ndev, struct net_dev
return -EOPNOTSUPP;
}
+ err = switchdev_bridge_port_offload(ndev, ndev, extack);
+ if (err)
+ return err;
+
common->br_members |= BIT(priv->port->port_id);
am65_cpsw_port_offload_fwd_mark_update(common);
@@ -2104,6 +2112,8 @@ static void am65_cpsw_netdevice_port_unlink(struct net_device *ndev)
struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
struct am65_cpsw_ndev_priv *priv = am65_ndev_to_priv(ndev);
+ switchdev_bridge_port_unoffload(ndev);
+
common->br_members &= ~BIT(priv->port->port_id);
am65_cpsw_port_offload_fwd_mark_update(common);
@@ -2116,6 +2126,7 @@ static void am65_cpsw_netdevice_port_unlink(struct net_device *ndev)
static int am65_cpsw_netdevice_event(struct notifier_block *unused,
unsigned long event, void *ptr)
{
+ struct netlink_ext_ack *extack = netdev_notifier_info_to_extack(ptr);
struct net_device *ndev = netdev_notifier_info_to_dev(ptr);
struct netdev_notifier_changeupper_info *info;
int ret = NOTIFY_DONE;
@@ -2129,7 +2140,9 @@ static int am65_cpsw_netdevice_event(struct notifier_block *unused,
if (netif_is_bridge_master(info->upper_dev)) {
if (info->linking)
- ret = am65_cpsw_netdevice_port_link(ndev, info->upper_dev);
+ ret = am65_cpsw_netdevice_port_link(ndev,
+ info->upper_dev,
+ extack);
else
am65_cpsw_netdevice_port_unlink(ndev);
}
diff --git a/drivers/net/ethernet/ti/cpsw_new.c b/drivers/net/ethernet/ti/cpsw_new.c
index 57d279fdcc9f774a9bedfe13709ab1c1a970b1c4..bf9cadfb11b5849e399ea09f960e42f9d7e90b81 100644
--- a/drivers/net/ethernet/ti/cpsw_new.c
+++ b/drivers/net/ethernet/ti/cpsw_new.c
@@ -11,6 +11,7 @@
#include <linux/module.h>
#include <linux/irqreturn.h>
#include <linux/interrupt.h>
+#include <linux/if_bridge.h>
#include <linux/if_ether.h>
#include <linux/etherdevice.h>
#include <linux/net_tstamp.h>
@@ -1499,10 +1500,12 @@ static void cpsw_port_offload_fwd_mark_update(struct cpsw_common *cpsw)
}
static int cpsw_netdevice_port_link(struct net_device *ndev,
- struct net_device *br_ndev)
+ struct net_device *br_ndev,
+ struct netlink_ext_ack *extack)
{
struct cpsw_priv *priv = netdev_priv(ndev);
struct cpsw_common *cpsw = priv->cpsw;
+ int err;
if (!cpsw->br_members) {
cpsw->hw_bridge_dev = br_ndev;
@@ -1514,6 +1517,10 @@ static int cpsw_netdevice_port_link(struct net_device *ndev,
return -EOPNOTSUPP;
}
+ err = switchdev_bridge_port_offload(ndev, ndev, extack);
+ if (err)
+ return err;
+
cpsw->br_members |= BIT(priv->emac_port);
cpsw_port_offload_fwd_mark_update(cpsw);
@@ -1526,6 +1533,8 @@ static void cpsw_netdevice_port_unlink(struct net_device *ndev)
struct cpsw_priv *priv = netdev_priv(ndev);
struct cpsw_common *cpsw = priv->cpsw;
+ switchdev_bridge_port_unoffload(ndev);
+
cpsw->br_members &= ~BIT(priv->emac_port);
cpsw_port_offload_fwd_mark_update(cpsw);
@@ -1538,6 +1547,7 @@ static void cpsw_netdevice_port_unlink(struct net_device *ndev)
static int cpsw_netdevice_event(struct notifier_block *unused,
unsigned long event, void *ptr)
{
+ struct netlink_ext_ack *extack = netdev_notifier_info_to_extack(ptr);
struct net_device *ndev = netdev_notifier_info_to_dev(ptr);
struct netdev_notifier_changeupper_info *info;
int ret = NOTIFY_DONE;
@@ -1552,7 +1562,8 @@ static int cpsw_netdevice_event(struct notifier_block *unused,
if (netif_is_bridge_master(info->upper_dev)) {
if (info->linking)
ret = cpsw_netdevice_port_link(ndev,
- info->upper_dev);
+ info->upper_dev,
+ extack);
else
cpsw_netdevice_port_unlink(ndev);
}
diff --git a/include/linux/if_bridge.h b/include/linux/if_bridge.h
index b651c5e32a28af052d07941bc4d4c767a97e8a81..ce413eca527e0bad79b6978241a11bde019e2fe9 100644
--- a/include/linux/if_bridge.h
+++ b/include/linux/if_bridge.h
@@ -206,4 +206,25 @@ static inline int br_fdb_replay(const struct net_device *br_dev,
}
#endif
+#if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_NET_SWITCHDEV)
+
+int switchdev_bridge_port_offload(struct net_device *brport_dev,
+ struct net_device *dev,
+ struct netlink_ext_ack *extack);
+void switchdev_bridge_port_unoffload(struct net_device *brport_dev);
+
+#else
+
+static inline int switchdev_bridge_port_offload(struct net_device *brport_dev,
+ struct net_device *dev,
+ struct netlink_ext_ack *extack)
+{
+ return -EINVAL;
+}
+
+static inline void switchdev_bridge_port_unoffload(struct net_device *brport_dev)
+{
+}
+#endif
+
#endif
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index c0df50e4abbb8f12ab194853b7bf54642128e0ef..86f6d7e93ea8dcc2a2f701086c0710f0c3e5ba03 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -349,7 +349,6 @@ static void del_nbp(struct net_bridge_port *p)
nbp_backup_clear(p);
nbp_update_port_count(br);
- nbp_switchdev_del(p);
netdev_upper_dev_unlink(dev, br->dev);
@@ -644,10 +643,6 @@ int br_add_if(struct net_bridge *br, struct net_device *dev,
if (err)
goto err5;
- err = nbp_switchdev_add(p);
- if (err)
- goto err6;
-
dev_disable_lro(dev);
list_add_rcu(&p->list, &br->port_list);
@@ -685,13 +680,13 @@ int br_add_if(struct net_bridge *br, struct net_device *dev,
*/
err = dev_pre_changeaddr_notify(br->dev, dev->dev_addr, extack);
if (err)
- goto err7;
+ goto err6;
}
err = nbp_vlan_init(p, extack);
if (err) {
netdev_err(dev, "failed to initialize vlan filtering on this port\n");
- goto err7;
+ goto err6;
}
spin_lock_bh(&br->lock);
@@ -714,14 +709,12 @@ int br_add_if(struct net_bridge *br, struct net_device *dev,
return 0;
-err7:
+err6:
if (fdb_synced)
br_fdb_unsync_static(br, p);
list_del_rcu(&p->list);
br_fdb_delete_by_port(br, p, 0, 1);
nbp_update_port_count(br);
- nbp_switchdev_del(p);
-err6:
netdev_upper_dev_unlink(dev, br->dev);
err5:
dev->priv_flags &= ~IFF_BRIDGE_PORT;
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index d0e6ae25a4e42d94c21fca59fb21717960c67204..fbf73a5256d01c12b816cbf9416e40c4889b0b8f 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -392,6 +392,8 @@ struct net_bridge_port {
* hardware domain.
*/
int hwdom;
+ int offload_count;
+ struct netdev_phys_item_id ppid;
#endif
u16 group_fwd_mask;
u16 backup_redirected_cnt;
@@ -1857,8 +1859,6 @@ void br_switchdev_fdb_notify(struct net_bridge *br,
int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags,
struct netlink_ext_ack *extack);
int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid);
-int nbp_switchdev_add(struct net_bridge_port *p);
-void nbp_switchdev_del(struct net_bridge_port *p);
void br_switchdev_init(struct net_bridge *br);
static inline void br_switchdev_frame_unmark(struct sk_buff *skb)
@@ -1907,15 +1907,6 @@ static inline void br_switchdev_frame_unmark(struct sk_buff *skb)
{
}
-static inline int nbp_switchdev_add(struct net_bridge_port *p)
-{
- return 0;
-}
-
-static inline void nbp_switchdev_del(struct net_bridge_port *p)
-{
-}
-
static inline void br_switchdev_init(struct net_bridge *br)
{
}
diff --git a/net/bridge/br_switchdev.c b/net/bridge/br_switchdev.c
index f3120f13c2930e7617875f811f27850955ac36ff..39f0787fde018d8055aa637ffa402ff4b0f34674 100644
--- a/net/bridge/br_switchdev.c
+++ b/net/bridge/br_switchdev.c
@@ -133,7 +133,7 @@ static int nbp_switchdev_hwdom_set(struct net_bridge_port *joining)
/* joining is yet to be added to the port list. */
list_for_each_entry(p, &br->port_list, list) {
- if (netdev_port_same_parent_id(joining->dev, p->dev)) {
+ if (netdev_phys_item_id_same(&joining->ppid, &p->ppid)) {
joining->hwdom = p->hwdom;
return 0;
}
@@ -162,27 +162,85 @@ static void nbp_switchdev_hwdom_put(struct net_bridge_port *leaving)
clear_bit(leaving->hwdom, &br->busy_hwdoms);
}
-int nbp_switchdev_add(struct net_bridge_port *p)
+static int nbp_switchdev_add(struct net_bridge_port *p,
+ struct netdev_phys_item_id ppid,
+ struct netlink_ext_ack *extack)
{
- struct netdev_phys_item_id ppid = { };
- int err;
+ if (p->offload_count) {
+ /* Prevent unsupported configurations such as a bridge port
+ * which is a bonding interface, and the member ports are from
+ * different hardware switches.
+ */
+ if (!netdev_phys_item_id_same(&p->ppid, &ppid)) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Same bridge port cannot be offloaded by two physical switches");
+ return -EBUSY;
+ }
- ASSERT_RTNL();
+ /* Tolerate drivers that call switchdev_bridge_port_offload()
+ * more than once for the same bridge port, such as when the
+ * bridge port is an offloaded bonding/team interface.
+ */
+ p->offload_count++;
- err = dev_get_port_parent_id(p->dev, &ppid, true);
- if (err) {
- if (err == -EOPNOTSUPP)
- return 0;
- return err;
+ return 0;
}
+ p->ppid = ppid;
+ p->offload_count = 1;
+
return nbp_switchdev_hwdom_set(p);
}
-void nbp_switchdev_del(struct net_bridge_port *p)
+static void nbp_switchdev_del(struct net_bridge_port *p)
{
- ASSERT_RTNL();
+ if (WARN_ON(!p->offload_count))
+ return;
+
+ p->offload_count--;
+
+ if (p->offload_count)
+ return;
if (p->hwdom)
nbp_switchdev_hwdom_put(p);
}
+
+/* Let the bridge know that this port is offloaded, so that it can assign a
+ * switchdev hardware domain to it.
+ */
+int switchdev_bridge_port_offload(struct net_device *brport_dev,
+ struct net_device *dev,
+ struct netlink_ext_ack *extack)
+{
+ struct netdev_phys_item_id ppid;
+ struct net_bridge_port *p;
+ int err;
+
+ ASSERT_RTNL();
+
+ p = br_port_get_rtnl(brport_dev);
+ if (!p)
+ return -ENODEV;
+
+ err = dev_get_port_parent_id(dev, &ppid, false);
+ if (err)
+ return err;
+
+ return nbp_switchdev_add(p, ppid, extack);
+}
+EXPORT_SYMBOL_GPL(switchdev_bridge_port_offload);
+
+void switchdev_bridge_port_unoffload(struct net_device *brport_dev)
+{
+ struct net_bridge_port *p;
+
+ ASSERT_RTNL();
+
+ p = br_port_get_rtnl(brport_dev);
+ if (!p)
+ return;
+
+ nbp_switchdev_del(p);
+}
+EXPORT_SYMBOL_GPL(switchdev_bridge_port_unoffload);
diff --git a/net/dsa/port.c b/net/dsa/port.c
index 982e18771d767e699ed0d9c7f6bf15e1742981a4..7accda0661498cccdc95ae574d55db6f6fc462a2 100644
--- a/net/dsa/port.c
+++ b/net/dsa/port.c
@@ -292,6 +292,8 @@ int dsa_port_bridge_join(struct dsa_port *dp, struct net_device *br,
.port = dp->index,
.br = br,
};
+ struct net_device *dev = dp->slave;
+ struct net_device *brport_dev;
int err;
/* Here the interface is already bridged. Reflect the current
@@ -299,16 +301,24 @@ int dsa_port_bridge_join(struct dsa_port *dp, struct net_device *br,
*/
dp->bridge_dev = br;
+ brport_dev = dsa_port_to_bridge_port(dp);
+
err = dsa_broadcast(DSA_NOTIFIER_BRIDGE_JOIN, &info);
if (err)
goto out_rollback;
- err = dsa_port_switchdev_sync(dp, extack);
+ err = switchdev_bridge_port_offload(brport_dev, dev, extack);
if (err)
goto out_rollback_unbridge;
+ err = dsa_port_switchdev_sync(dp, extack);
+ if (err)
+ goto out_rollback_unoffload;
+
return 0;
+out_rollback_unoffload:
+ switchdev_bridge_port_unoffload(brport_dev);
out_rollback_unbridge:
dsa_broadcast(DSA_NOTIFIER_BRIDGE_LEAVE, &info);
out_rollback:
@@ -319,6 +329,10 @@ int dsa_port_bridge_join(struct dsa_port *dp, struct net_device *br,
int dsa_port_pre_bridge_leave(struct dsa_port *dp, struct net_device *br,
struct netlink_ext_ack *extack)
{
+ struct net_device *brport_dev = dsa_port_to_bridge_port(dp);
+
+ switchdev_bridge_port_unoffload(brport_dev);
+
return dsa_port_switchdev_unsync_objs(dp, br, extack);
}