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authorPatrick McHardy <kaber@trash.net>2013-04-19 02:04:30 +0000
committerDavid S. Miller <davem@davemloft.net>2013-04-19 14:46:06 -0400
commit86a9bad3ab6b6f858fd4443b48738cabbb6d094c (patch)
tree21d41b1c81e0f3e53ac4004627a8c9588099fea1 /net/core
parent1fd9b1fc310314911f66d2f14a8e4f0ef37bf47b (diff)
downloadblackbird-op-linux-86a9bad3ab6b6f858fd4443b48738cabbb6d094c.tar.gz
blackbird-op-linux-86a9bad3ab6b6f858fd4443b48738cabbb6d094c.zip
net: vlan: add protocol argument to packet tagging functions
Add a protocol argument to the VLAN packet tagging functions. In case of HW tagging, we need that protocol available in the ndo_start_xmit functions, so it is stored in a new field in the skb. The new field fits into a hole (on 64 bit) and doesn't increase the sks's size. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
-rw-r--r--net/core/dev.c5
-rw-r--r--net/core/netpoll.c5
-rw-r--r--net/core/skbuff.c1
3 files changed, 7 insertions, 4 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index 07a8e9dc43fc..3a12ee132b59 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2482,8 +2482,9 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
features = netif_skb_features(skb);
if (vlan_tx_tag_present(skb) &&
- !(features & NETIF_F_HW_VLAN_CTAG_TX)) {
- skb = __vlan_put_tag(skb, vlan_tx_tag_get(skb));
+ !vlan_hw_offload_capable(features, skb->vlan_proto)) {
+ skb = __vlan_put_tag(skb, skb->vlan_proto,
+ vlan_tx_tag_get(skb));
if (unlikely(!skb))
goto out;
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index 8de961e67cf7..209d84253dd5 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -383,8 +383,9 @@ void netpoll_send_skb_on_dev(struct netpoll *np, struct sk_buff *skb,
if (__netif_tx_trylock(txq)) {
if (!netif_xmit_stopped(txq)) {
if (vlan_tx_tag_present(skb) &&
- !(netif_skb_features(skb) & NETIF_F_HW_VLAN_CTAG_TX)) {
- skb = __vlan_put_tag(skb, vlan_tx_tag_get(skb));
+ !vlan_hw_offload_capable(netif_skb_features(skb),
+ skb->vlan_proto)) {
+ skb = __vlan_put_tag(skb, skb->vlan_proto, vlan_tx_tag_get(skb));
if (unlikely(!skb))
break;
skb->vlan_tci = 0;
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index ba646145cd5c..a92d9e7d10f7 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -707,6 +707,7 @@ static void __copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
new->tc_verd = old->tc_verd;
#endif
#endif
+ new->vlan_proto = old->vlan_proto;
new->vlan_tci = old->vlan_tci;
skb_copy_secmark(new, old);
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