diff options
| 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/core/ethtool.c | |
| parent | f4c50d990dcf11a296679dc05de3873783236711 (diff) | |
[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/core/ethtool.c')
| -rw-r--r-- | net/core/ethtool.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/net/core/ethtool.c b/net/core/ethtool.c index 33ce7ed6afc6..27ce1683caf5 100644 --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@ -614,6 +614,29 @@ static int ethtool_set_ufo(struct net_device *dev, char __user *useraddr) return dev->ethtool_ops->set_ufo(dev, edata.data); } +static int ethtool_get_gso(struct net_device *dev, char __user *useraddr) +{ + struct ethtool_value edata = { ETHTOOL_GGSO }; + + edata.data = dev->features & NETIF_F_GSO; + if (copy_to_user(useraddr, &edata, sizeof(edata))) + return -EFAULT; + return 0; +} + +static int ethtool_set_gso(struct net_device *dev, char __user *useraddr) +{ + struct ethtool_value edata; + + if (copy_from_user(&edata, useraddr, sizeof(edata))) + return -EFAULT; + if (edata.data) + dev->features |= NETIF_F_GSO; + else + dev->features &= ~NETIF_F_GSO; + return 0; +} + static int ethtool_self_test(struct net_device *dev, char __user *useraddr) { struct ethtool_test test; @@ -905,6 +928,12 @@ int dev_ethtool(struct ifreq *ifr) case ETHTOOL_SUFO: rc = ethtool_set_ufo(dev, useraddr); break; + case ETHTOOL_GGSO: + rc = ethtool_get_gso(dev, useraddr); + break; + case ETHTOOL_SGSO: + rc = ethtool_set_gso(dev, useraddr); + break; default: rc = -EOPNOTSUPP; } |