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authorLorenzo Bianconi <lorenzo@kernel.org>2023-05-04 11:52:49 +0200
committerDavid S. Miller <davem@davemloft.net>2023-05-05 09:34:23 +0100
commitcb9e6e584d58420df182102674e636fb841dae4c (patch)
treebc5e9eedb88b2cd0203b9e081c4baf3ce8ad1bdb /drivers/net
parentd7385ba137711ea71527a605cac162610a621de8 (diff)
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bonding: add xdp_features support
Introduce xdp_features support for bonding driver according to the slave devices attached to the master one. xdp_features is required whenever we want to xdp_redirect traffic into a bond device and then into selected slaves attached to it. Reviewed-by: Simon Horman <simon.horman@corigine.com> Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com> Fixes: 66c0e13ad236 ("drivers: net: turn on XDP features") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Reviewed-by: Jussi Maki <joamaki@gmail.com> Tested-by: Jussi Maki <joamaki@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/bonding/bond_main.c29
-rw-r--r--drivers/net/bonding/bond_options.c2
2 files changed, 31 insertions, 0 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 710548dbd0c1..3fed888629f7 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1789,6 +1789,26 @@ static void bond_ether_setup(struct net_device *bond_dev)
bond_dev->priv_flags &= ~IFF_TX_SKB_SHARING;
}
+void bond_xdp_set_features(struct net_device *bond_dev)
+{
+ struct bonding *bond = netdev_priv(bond_dev);
+ xdp_features_t val = NETDEV_XDP_ACT_MASK;
+ struct list_head *iter;
+ struct slave *slave;
+
+ ASSERT_RTNL();
+
+ if (!bond_xdp_check(bond)) {
+ xdp_clear_features_flag(bond_dev);
+ return;
+ }
+
+ bond_for_each_slave(bond, slave, iter)
+ val &= slave->dev->xdp_features;
+
+ xdp_set_features_flag(bond_dev, val);
+}
+
/* enslave device <slave> to bond device <master> */
int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
struct netlink_ext_ack *extack)
@@ -2236,6 +2256,8 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
bpf_prog_inc(bond->xdp_prog);
}
+ bond_xdp_set_features(bond_dev);
+
slave_info(bond_dev, slave_dev, "Enslaving as %s interface with %s link\n",
bond_is_active_slave(new_slave) ? "an active" : "a backup",
new_slave->link != BOND_LINK_DOWN ? "an up" : "a down");
@@ -2483,6 +2505,7 @@ static int __bond_release_one(struct net_device *bond_dev,
if (!netif_is_bond_master(slave_dev))
slave_dev->priv_flags &= ~IFF_BONDING;
+ bond_xdp_set_features(bond_dev);
kobject_put(&slave->kobj);
return 0;
@@ -3930,6 +3953,9 @@ static int bond_slave_netdev_event(unsigned long event,
/* Propagate to master device */
call_netdevice_notifiers(event, slave->bond->dev);
break;
+ case NETDEV_XDP_FEAT_CHANGE:
+ bond_xdp_set_features(bond_dev);
+ break;
default:
break;
}
@@ -5874,6 +5900,9 @@ void bond_setup(struct net_device *bond_dev)
if (BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP)
bond_dev->features |= BOND_XFRM_FEATURES;
#endif /* CONFIG_XFRM_OFFLOAD */
+
+ if (bond_xdp_check(bond))
+ bond_dev->xdp_features = NETDEV_XDP_ACT_MASK;
}
/* Destroy a bonding device.
diff --git a/drivers/net/bonding/bond_options.c b/drivers/net/bonding/bond_options.c
index f71d5517f829..0498fc6731f8 100644
--- a/drivers/net/bonding/bond_options.c
+++ b/drivers/net/bonding/bond_options.c
@@ -877,6 +877,8 @@ static int bond_option_mode_set(struct bonding *bond,
netdev_update_features(bond->dev);
}
+ bond_xdp_set_features(bond->dev);
+
return 0;
}