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6e0ce48e | 1 | /* |
e0edde6f | 2 | * Copyright (c) 2007-2011 Nicira, Inc. |
6e0ce48e | 3 | * |
a9a29d22 JG |
4 | * This program is free software; you can redistribute it and/or |
5 | * modify it under the terms of version 2 of the GNU General Public | |
6 | * License as published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, but | |
9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
11 | * General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this program; if not, write to the Free Software | |
15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA | |
16 | * 02110-1301, USA | |
6e0ce48e JG |
17 | */ |
18 | ||
19 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | |
20 | ||
21 | #include <linux/if_vlan.h> | |
22 | #include <linux/skbuff.h> | |
23 | ||
24 | #include "datapath.h" | |
25 | #include "vlan.h" | |
26 | ||
27 | #ifdef NEED_VLAN_FIELD | |
28 | void vlan_copy_skb_tci(struct sk_buff *skb) | |
29 | { | |
30 | OVS_CB(skb)->vlan_tci = 0; | |
31 | } | |
32 | ||
33 | u16 vlan_get_tci(struct sk_buff *skb) | |
34 | { | |
35 | return OVS_CB(skb)->vlan_tci; | |
36 | } | |
37 | ||
38 | void vlan_set_tci(struct sk_buff *skb, u16 vlan_tci) | |
39 | { | |
40 | OVS_CB(skb)->vlan_tci = vlan_tci; | |
41 | } | |
42 | ||
43 | bool vlan_tx_tag_present(struct sk_buff *skb) | |
44 | { | |
45 | return OVS_CB(skb)->vlan_tci & VLAN_TAG_PRESENT; | |
46 | } | |
47 | ||
48 | u16 vlan_tx_tag_get(struct sk_buff *skb) | |
49 | { | |
50 | return OVS_CB(skb)->vlan_tci & ~VLAN_TAG_PRESENT; | |
51 | } | |
52 | ||
53 | struct sk_buff *__vlan_hwaccel_put_tag(struct sk_buff *skb, u16 vlan_tci) | |
54 | { | |
55 | OVS_CB(skb)->vlan_tci = vlan_tci | VLAN_TAG_PRESENT; | |
56 | return skb; | |
57 | } | |
58 | #endif /* NEED_VLAN_FIELD */ |