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authorHerbert Xu <herbert@gondor.apana.org.au>2006-06-22 03:07:29 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2006-06-23 02:07:36 -0700
commit37c3185a02d4b85fbe134bf5204535405dd2c957 (patch)
tree7712fb706bb446b5b6a8ae25f365b4e135d9a1fb /net/bridge
parentf4c50d990dcf11a296679dc05de3873783236711 (diff)
downloadlinux-37c3185a02d4b85fbe134bf5204535405dd2c957.tar.bz2
[NET]: Added GSO toggle
This patch adds a generic segmentation offload toggle that can be turned on/off for each net device. For now it only supports in TCPv4. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge')
-rw-r--r--net/bridge/br_if.c17
1 files changed, 11 insertions, 6 deletions
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index fdec773f5b52..07956ecf545e 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -376,15 +376,20 @@ void br_features_recompute(struct net_bridge *br)
features = br->feature_mask & ~NETIF_F_ALL_CSUM;
list_for_each_entry(p, &br->port_list, list) {
- if (checksum & NETIF_F_NO_CSUM &&
- !(p->dev->features & NETIF_F_NO_CSUM))
+ unsigned long feature = p->dev->features;
+
+ if (checksum & NETIF_F_NO_CSUM && !(feature & NETIF_F_NO_CSUM))
checksum ^= NETIF_F_NO_CSUM | NETIF_F_HW_CSUM;
- if (checksum & NETIF_F_HW_CSUM &&
- !(p->dev->features & NETIF_F_HW_CSUM))
+ if (checksum & NETIF_F_HW_CSUM && !(feature & NETIF_F_HW_CSUM))
checksum ^= NETIF_F_HW_CSUM | NETIF_F_IP_CSUM;
- if (!(p->dev->features & NETIF_F_IP_CSUM))
+ if (!(feature & NETIF_F_IP_CSUM))
checksum = 0;
- features &= p->dev->features;
+
+ if (feature & NETIF_F_GSO)
+ feature |= NETIF_F_TSO;
+ feature |= NETIF_F_GSO;
+
+ features &= feature;
}
br->dev->features = features | checksum | NETIF_F_LLTX;