Commit 5a7baa78 authored by Or Gerlitz's avatar Or Gerlitz Committed by David S. Miller
Browse files

bonding: Advertize vxlan offload features when supported 



When the underlying device supports TCP offloads for VXLAN/UDP
encapulated traffic, we need to reflect that through the hw_enc_features
field of the bonding net-device. This will cause the xmit path
in the core networking stack to provide bonding with encapsulated
GSO frames to offload into the HW etc.

Signed-off-by: default avatarOr Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent ee14eb7b

drivers/net/bonding/bond_main.c

+9 −0
Original line number Diff line number Diff line
@@ -1025,10 +1025,14 @@ static netdev_features_t bond_fix_features(struct net_device *dev, 
				 NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \

				 NETIF_F_HIGHDMA | NETIF_F_LRO)



#define BOND_ENC_FEATURES	(NETIF_F_ALL_CSUM | NETIF_F_SG | NETIF_F_RXCSUM |\

				 NETIF_F_TSO | NETIF_F_GSO_UDP_TUNNEL)



static void bond_compute_features(struct bonding *bond)

{

	unsigned int flags, dst_release_flag = IFF_XMIT_DST_RELEASE;

	netdev_features_t vlan_features = BOND_VLAN_FEATURES;

	netdev_features_t enc_features  = BOND_ENC_FEATURES;

	struct net_device *bond_dev = bond->dev;

	struct list_head *iter;

	struct slave *slave;
@@ -1044,6 +1048,9 @@ static void bond_compute_features(struct bonding *bond) 
		vlan_features = netdev_increment_features(vlan_features,

			slave->dev->vlan_features, BOND_VLAN_FEATURES);



		enc_features = netdev_increment_features(enc_features,

							 slave->dev->hw_enc_features,

							 BOND_ENC_FEATURES);

		dst_release_flag &= slave->dev->priv_flags;

		if (slave->dev->hard_header_len > max_hard_header_len)

			max_hard_header_len = slave->dev->hard_header_len;
@@ -1054,6 +1061,7 @@ static void bond_compute_features(struct bonding *bond) 


done:

	bond_dev->vlan_features = vlan_features;

	bond_dev->hw_enc_features = enc_features;

	bond_dev->hard_header_len = max_hard_header_len;

	bond_dev->gso_max_segs = gso_max_segs;

	netif_set_gso_max_size(bond_dev, gso_max_size);
@@ -3975,6 +3983,7 @@ void bond_setup(struct net_device *bond_dev) 
				NETIF_F_HW_VLAN_CTAG_FILTER;



	bond_dev->hw_features &= ~(NETIF_F_ALL_CSUM & ~NETIF_F_HW_CSUM);

	bond_dev->hw_features |= NETIF_F_GSO_UDP_TUNNEL;

	bond_dev->features |= bond_dev->hw_features;

}

CRA Git | Maintained and supported by SUSTech CRA and CCSE