diff options
| -rw-r--r-- | linux-2.6-xen-sparse/drivers/xen/netfront/netfront.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/linux-2.6-xen-sparse/drivers/xen/netfront/netfront.c b/linux-2.6-xen-sparse/drivers/xen/netfront/netfront.c index 10f6d47994..e379f5f314 100644 --- a/linux-2.6-xen-sparse/drivers/xen/netfront/netfront.c +++ b/linux-2.6-xen-sparse/drivers/xen/netfront/netfront.c @@ -101,6 +101,14 @@ static inline void dev_disable_gso_features(struct net_device *dev) } #elif defined(NETIF_F_TSO) #define HAVE_TSO 1 + +/* Some older kernels cannot cope with incorrect checksums, + * particularly in netfilter. I'm not sure there is 100% correlation + * with the presence of NETIF_F_TSO but it appears to be a good first + * approximiation. + */ +#define HAVE_NO_CSUM_OFFLOAD 1 + #define gso_size tso_size #define gso_segs tso_segs static inline void dev_disable_gso_features(struct net_device *dev) @@ -394,6 +402,14 @@ again: goto abort_transaction; } +#ifdef HAVE_NO_CSUM_OFFLOAD + err = xenbus_printf(xbt, dev->nodename, "feature-no-csum-offload", "%d", 1); + if (err) { + message = "writing feature-no-csum-offload"; + goto abort_transaction; + } +#endif + err = xenbus_printf(xbt, dev->nodename, "feature-sg", "%d", 1); if (err) { message = "writing feature-sg"; |