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sunvnet: restrict advertized checksum offloads to just IP 

As much as we'd like to play well with others, we really aren't
handling the checksums on non-IP protocol packets very well.  This
is easily seen when trying to do TCP over ipv6 - the checksums are
garbage.

Here we restrict the checksum feature flag to just IP traffic so
that we aren't given work we can't yet do.

Orabug: 26175391, 26259755

Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Shannon Nelson 2017-06-14 15:43:37 -07:00 committed by David S. Miller
parent 3d8bd78b79
commit 7e9191c54a
2 changed files with 2 additions and 2 deletions
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2
drivers/net/ethernet/sun/ldmvsw.c
View File

@ -248,7 +248,7 @@ static struct net_device *vsw_alloc_netdev(u8 hwaddr[],
dev->ethtool_ops = &vsw_ethtool_ops;
dev->watchdog_timeo = VSW_TX_TIMEOUT;
dev->hw_features = NETIF_F_HW_CSUM | NETIF_F_SG;
dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_SG;
dev->features = dev->hw_features;
/* MTU range: 68 - 65535 */

2
drivers/net/ethernet/sun/sunvnet.c
View File

@ -312,7 +312,7 @@ static struct vnet *vnet_new(const u64 *local_mac,
dev->watchdog_timeo = VNET_TX_TIMEOUT;
dev->hw_features = NETIF_F_TSO | NETIF_F_GSO | NETIF_F_GSO_SOFTWARE |
NETIF_F_HW_CSUM | NETIF_F_SG;
NETIF_F_IP_CSUM | NETIF_F_SG;
dev->features = dev->hw_features;
/* MTU range: 68 - 65535 */