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Commit 3268e5cb authored by Eran Ben Elisha's avatar Eran Ben Elisha Committed by David S. Miller
Browse files

team: Advertise tunneling offload features 



When the underlying device supports offloads encapulated traffic,
we need to reflect that through the hw_enc_features field of the
team net-device.

This will cause the xmit path in the core networking stack to provide
team with encapsulated GSO frames to offload into the HW etc.

Using this over Mellanox ConnectX3-pro (mlx4 driver) card that supports
VXLAN offloads we got 36.0 Gbits/sec using eight iperf streams.

Signed-off-by: default avatarEran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: default avatarJack Morgenstein <jackm@dev.mellanox.co.il>
Reviewed-by: default avatarOr Gerlitz <ogerlitz@mellanox.com>
Acked-by: default avatarJiri Pirko <jiri@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 34a55d5e

drivers/net/team/team.c

+11 −0
Original line number Diff line number Diff line
@@ -985,10 +985,14 @@ static void team_port_disable(struct team *team, 
			    NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \

			    NETIF_F_HIGHDMA | NETIF_F_LRO)



#define TEAM_ENC_FEATURES	(NETIF_F_HW_CSUM | NETIF_F_SG | \

				 NETIF_F_RXCSUM | NETIF_F_ALL_TSO)



static void __team_compute_features(struct team *team)

{

	struct team_port *port;

	u32 vlan_features = TEAM_VLAN_FEATURES & NETIF_F_ALL_FOR_ALL;

	netdev_features_t enc_features  = TEAM_ENC_FEATURES;

	unsigned short max_hard_header_len = ETH_HLEN;

	unsigned int dst_release_flag = IFF_XMIT_DST_RELEASE |

					IFF_XMIT_DST_RELEASE_PERM;
@@ -997,6 +1001,11 @@ static void __team_compute_features(struct team *team) 
		vlan_features = netdev_increment_features(vlan_features,

					port->dev->vlan_features,

					TEAM_VLAN_FEATURES);

		enc_features =

			netdev_increment_features(enc_features,

						  port->dev->hw_enc_features,

						  TEAM_ENC_FEATURES);





		dst_release_flag &= port->dev->priv_flags;

		if (port->dev->hard_header_len > max_hard_header_len)
@@ -1004,6 +1013,7 @@ static void __team_compute_features(struct team *team) 
	}



	team->dev->vlan_features = vlan_features;

	team->dev->hw_enc_features = enc_features | NETIF_F_GSO_ENCAP_ALL;

	team->dev->hard_header_len = max_hard_header_len;



	team->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
@@ -2091,6 +2101,7 @@ static void team_setup(struct net_device *dev) 
			   NETIF_F_HW_VLAN_CTAG_RX |

			   NETIF_F_HW_VLAN_CTAG_FILTER;



	dev->hw_features |= NETIF_F_GSO_ENCAP_ALL;

	dev->features |= dev->hw_features;

}