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net: vlan: add protocol argument to packet tagging functions

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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>
This commit is contained in:
Patrick McHardy 2013-04-19 02:04:30 +00:00 • committed by David S. Miller
parent 1fd9b1fc31
commit 86a9bad3ab
56 changed files with 107 additions and 84 deletions
Download patch file Download diff file Expand all files Collapse all files

6
net/openvswitch/actions.c
View file

@ -98,7 +98,7 @@ static int pop_vlan(struct sk_buff *skb)
if (unlikely(err))
return err;
__vlan_hwaccel_put_tag(skb, ntohs(tci));
__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), ntohs(tci));
return 0;
}
@ -110,7 +110,7 @@ static int push_vlan(struct sk_buff *skb, const struct ovs_action_push_vlan *vla
/* push down current VLAN tag */
current_tag = vlan_tx_tag_get(skb);
if (!__vlan_put_tag(skb, current_tag))
if (!__vlan_put_tag(skb, skb->vlan_proto, current_tag))
return -ENOMEM;
if (skb->ip_summed == CHECKSUM_COMPLETE)
@ -118,7 +118,7 @@ static int push_vlan(struct sk_buff *skb, const struct ovs_action_push_vlan *vla
+ (2 * ETH_ALEN), VLAN_HLEN, 0));
}
__vlan_hwaccel_put_tag(skb, ntohs(vlan->vlan_tci) & ~VLAN_TAG_PRESENT);
__vlan_hwaccel_put_tag(skb, vlan->vlan_tpid, ntohs(vlan->vlan_tci) & ~VLAN_TAG_PRESENT);
return 0;
}

2
net/openvswitch/datapath.c
View file

@ -401,7 +401,7 @@ static int queue_userspace_packet(struct net *net, int dp_ifindex,
if (!nskb)
return -ENOMEM;
nskb = __vlan_put_tag(nskb, vlan_tx_tag_get(nskb));
nskb = __vlan_put_tag(nskb, nskb->vlan_proto, vlan_tx_tag_get(nskb));
if (!nskb)
return -ENOMEM;