mirror of
https://github.com/torvalds/linux.git
synced 2024-11-11 22:51:42 +00:00
7750f403cb
The function is huge and included at least once in every VLAN acceleration capable driver. Uninline it; to avoid having drivers depend on the VLAN module, the function is always built in statically when VLAN is enabled. With all VLAN acceleration capable drivers that build on x86_64 enabled, this results in: text data bss dec hex filename 6515227 854044 343968 7713239 75b1d7 vmlinux.inlined 6505637 854044 343968 7703649 758c61 vmlinux.uninlined ---------------------------------------------------------- -9590 Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
49 lines
1.3 KiB
C
49 lines
1.3 KiB
C
#include <linux/skbuff.h>
|
|
#include <linux/netdevice.h>
|
|
#include <linux/if_vlan.h>
|
|
#include "vlan.h"
|
|
|
|
/* VLAN rx hw acceleration helper. This acts like netif_{rx,receive_skb}(). */
|
|
int __vlan_hwaccel_rx(struct sk_buff *skb, struct vlan_group *grp,
|
|
unsigned short vlan_tag, int polling)
|
|
{
|
|
struct net_device_stats *stats;
|
|
|
|
if (skb_bond_should_drop(skb)) {
|
|
dev_kfree_skb_any(skb);
|
|
return NET_RX_DROP;
|
|
}
|
|
|
|
skb->dev = vlan_group_get_device(grp, vlan_tag & VLAN_VID_MASK);
|
|
if (skb->dev == NULL) {
|
|
dev_kfree_skb_any(skb);
|
|
/* Not NET_RX_DROP, this is not being dropped
|
|
* due to congestion. */
|
|
return NET_RX_SUCCESS;
|
|
}
|
|
skb->dev->last_rx = jiffies;
|
|
|
|
stats = &skb->dev->stats;
|
|
stats->rx_packets++;
|
|
stats->rx_bytes += skb->len;
|
|
|
|
skb->priority = vlan_get_ingress_priority(skb->dev, vlan_tag);
|
|
switch (skb->pkt_type) {
|
|
case PACKET_BROADCAST:
|
|
break;
|
|
case PACKET_MULTICAST:
|
|
stats->multicast++;
|
|
break;
|
|
case PACKET_OTHERHOST:
|
|
/* Our lower layer thinks this is not local, let's make sure.
|
|
* This allows the VLAN to have a different MAC than the
|
|
* underlying device, and still route correctly. */
|
|
if (!compare_ether_addr(eth_hdr(skb)->h_dest,
|
|
skb->dev->dev_addr))
|
|
skb->pkt_type = PACKET_HOST;
|
|
break;
|
|
};
|
|
return (polling ? netif_receive_skb(skb) : netif_rx(skb));
|
|
}
|
|
EXPORT_SYMBOL(__vlan_hwaccel_rx);
|