diff options
| author | Paul Durrant <[email protected]> | 2013-10-16 16:50:28 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2013-10-17 19:35:14 +0000 |
| commit | 146c8a77d27bcbd7722120f70f51e3b287205d0a (patch) | |
| tree | b7ce7bf02f0967015366284281e31468a45508cf /drivers/net/xen-netback/interface.c | |
| parent | Merge branch 'bonding_rcu' (diff) | |
| download | kernel-146c8a77d27bcbd7722120f70f51e3b287205d0a.tar.gz kernel-146c8a77d27bcbd7722120f70f51e3b287205d0a.zip | |
xen-netback: add support for IPv6 checksum offload to guest
Check xenstore flag feature-ipv6-csum-offload to determine if a
guest is happy to accept IPv6 packets with only partial checksum.
Signed-off-by: Paul Durrant <[email protected]>
Cc: Wei Liu <[email protected]>
Cc: David Vrabel <[email protected]>
Cc: Ian Campbell <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'drivers/net/xen-netback/interface.c')
| -rw-r--r-- | drivers/net/xen-netback/interface.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c index 01bb854c7f62..8e927838652c 100644 --- a/drivers/net/xen-netback/interface.c +++ b/drivers/net/xen-netback/interface.c @@ -216,8 +216,10 @@ static netdev_features_t xenvif_fix_features(struct net_device *dev, features &= ~NETIF_F_SG; if (!vif->gso && !vif->gso_prefix) features &= ~NETIF_F_TSO; - if (!vif->csum) + if (!vif->ip_csum) features &= ~NETIF_F_IP_CSUM; + if (!vif->ipv6_csum) + features &= ~NETIF_F_IPV6_CSUM; return features; } @@ -306,7 +308,7 @@ struct xenvif *xenvif_alloc(struct device *parent, domid_t domid, vif->domid = domid; vif->handle = handle; vif->can_sg = 1; - vif->csum = 1; + vif->ip_csum = 1; vif->dev = dev; vif->credit_bytes = vif->remaining_credit = ~0UL; @@ -316,7 +318,9 @@ struct xenvif *xenvif_alloc(struct device *parent, domid_t domid, vif->credit_timeout.expires = jiffies; dev->netdev_ops = &xenvif_netdev_ops; - dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO; + dev->hw_features = NETIF_F_SG | + NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | + NETIF_F_TSO; dev->features = dev->hw_features; SET_ETHTOOL_OPS(dev, &xenvif_ethtool_ops); |