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net: vlan: make non-hw-accel rx path similar to hw-accel

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Now there are 2 paths for rx vlan frames. When rx-vlan-hw-accel is
enabled, skb is untagged by NIC, vlan_tci is set and the skb gets into
vlan code in __netif_receive_skb - vlan_hwaccel_do_receive.

For non-rx-vlan-hw-accel however, tagged skb goes thru whole
__netif_receive_skb, it's untagged in ptype_base hander and reinjected

This incosistency is fixed by this patch. Vlan untagging happens early in
__netif_receive_skb so the rest of code (ptype_all handlers, rx_handlers)
see the skb like it was untagged by hw.

Signed-off-by: Jiri Pirko <jpirko@redhat.com>

v1->v2:
	remove "inline" from vlan_core.c functions
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2011-04-07 19:48:33 +00:00 • committed by David S. Miller
parent 143780c656
commit bcc6d47903
6 changed files with 99 additions and 187 deletions
Download patch file Download diff file Expand all files Collapse all files

10
include/linux/if_vlan.h
View file

@ -132,7 +132,8 @@ extern u16 vlan_dev_vlan_id(const struct net_device *dev);
extern int __vlan_hwaccel_rx(struct sk_buff *skb, struct vlan_group *grp,
u16 vlan_tci, int polling);
extern bool vlan_hwaccel_do_receive(struct sk_buff **skb);
extern bool vlan_do_receive(struct sk_buff **skb);
extern struct sk_buff *vlan_untag(struct sk_buff *skb);
extern gro_result_t
vlan_gro_receive(struct napi_struct *napi, struct vlan_group *grp,
unsigned int vlan_tci, struct sk_buff *skb);
@ -166,13 +167,18 @@ static inline int __vlan_hwaccel_rx(struct sk_buff *skb, struct vlan_group *grp,
return NET_XMIT_SUCCESS;
}
static inline bool vlan_hwaccel_do_receive(struct sk_buff **skb)
static inline bool vlan_do_receive(struct sk_buff **skb)
{
if ((*skb)->vlan_tci & VLAN_VID_MASK)
(*skb)->pkt_type = PACKET_OTHERHOST;
return false;
}
inline struct sk_buff *vlan_untag(struct sk_buff *skb)
{
return skb;
}
static inline gro_result_t
vlan_gro_receive(struct napi_struct *napi, struct vlan_group *grp,
unsigned int vlan_tci, struct sk_buff *skb)