diff options
| -rw-r--r-- | drivers/net/xen-netback/common.h | 3 | ||||
| -rw-r--r-- | drivers/net/xen-netback/interface.c | 10 | ||||
| -rw-r--r-- | drivers/net/xen-netback/xenbus.c | 7 | ||||
| -rw-r--r-- | include/xen/interface/io/netif.h | 7 |
4 files changed, 22 insertions, 5 deletions
diff --git a/drivers/net/xen-netback/common.h b/drivers/net/xen-netback/common.h index 5715318..b4a9a3c 100644 --- a/drivers/net/xen-netback/common.h +++ b/drivers/net/xen-netback/common.h @@ -153,7 +153,8 @@ struct xenvif { u8 can_sg:1; u8 gso:1; u8 gso_prefix:1; - u8 csum:1; + u8 ip_csum:1; + u8 ipv6_csum:1; /* Internal feature information. */ u8 can_queue:1; /* can queue packets for receiver? */ diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c index 01bb854..8e92783 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); diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c index 1b08d87..ad27b15 100644 --- a/drivers/net/xen-netback/xenbus.c +++ b/drivers/net/xen-netback/xenbus.c @@ -574,7 +574,12 @@ static int connect_rings(struct backend_info *be) if (xenbus_scanf(XBT_NIL, dev->otherend, "feature-no-csum-offload", "%d", &val) < 0) val = 0; - vif->csum = !val; + vif->ip_csum = !val; + + if (xenbus_scanf(XBT_NIL, dev->otherend, "feature-ipv6-csum-offload", + "%d", &val) < 0) + val = 0; + vif->ipv6_csum = !!val; /* Map the shared frame, irq etc. */ err = xenvif_connect(vif, tx_ring_ref, rx_ring_ref, diff --git a/include/xen/interface/io/netif.h b/include/xen/interface/io/netif.h index eb262e3..c9e8184 100644 --- a/include/xen/interface/io/netif.h +++ b/include/xen/interface/io/netif.h @@ -51,6 +51,13 @@ */ /* + * "feature-no-csum-offload" should be used to turn IPv4 TCP/UDP checksum + * offload off or on. If it is missing then the feature is assumed to be on. + * "feature-ipv6-csum-offload" should be used to turn IPv6 TCP/UDP checksum + * offload on or off. If it is missing then the feature is assumed to be off. + */ + +/* * This is the 'wire' format for packets: * Request 1: xen_netif_tx_request -- XEN_NETTXF_* (any flags) * [Request 2: xen_netif_extra_info] (only if request 1 has XEN_NETTXF_extra_info) |