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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2006-06-22 03:07:29 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-06-23 02:07:36 -0700 |
| commit | 37c3185a02d4b85fbe134bf5204535405dd2c957 (patch) | |
| tree | 7712fb706bb446b5b6a8ae25f365b4e135d9a1fb /net/bridge/br_if.c | |
| parent | f4c50d990dcf11a296679dc05de3873783236711 (diff) | |
| download | lwn-37c3185a02d4b85fbe134bf5204535405dd2c957.tar.gz lwn-37c3185a02d4b85fbe134bf5204535405dd2c957.zip | |
[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/br_if.c')
| -rw-r--r-- | net/bridge/br_if.c | 17 |
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; |