A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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[NET]: Added GSO toggle

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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 <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Herbert Xu 2006-06-22 03:07:29 -07:00 • committed by David S. Miller
commit 37c3185a02
5 changed files with 47 additions and 6 deletions
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17
net/bridge/br_if.c
View file

@ -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;