9bb8582efb
The VLAN code contains multiple spots that use tag, id and tci as
identifiers for arguments and variables incorrectly and they actually
contain or are expected to contain something different. Additionally
types are used inconsistently (unsigned short vs u16) and identifiers
are sometimes capitalized.
- consistently use u16 for storing TCI, ID or QoS values
- consistently use vlan_id and vlan_tci for storing the respective values
- remove capitalization
- add kdoc comment to netif_hwaccel_{rx,receive_skb}
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
#include <linux/skbuff.h>
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#include <linux/netdevice.h>
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#include <linux/if_vlan.h>
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#include "vlan.h"
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/* VLAN rx hw acceleration helper. This acts like netif_{rx,receive_skb}(). */
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int __vlan_hwaccel_rx(struct sk_buff *skb, struct vlan_group *grp,
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u16 vlan_tci, int polling)
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{
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struct net_device_stats *stats;
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if (skb_bond_should_drop(skb)) {
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dev_kfree_skb_any(skb);
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return NET_RX_DROP;
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}
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skb->dev = vlan_group_get_device(grp, vlan_tci & VLAN_VID_MASK);
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if (skb->dev == NULL) {
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dev_kfree_skb_any(skb);
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/* Not NET_RX_DROP, this is not being dropped
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* due to congestion. */
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return NET_RX_SUCCESS;
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}
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skb->dev->last_rx = jiffies;
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stats = &skb->dev->stats;
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stats->rx_packets++;
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stats->rx_bytes += skb->len;
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skb->priority = vlan_get_ingress_priority(skb->dev, vlan_tci);
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switch (skb->pkt_type) {
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case PACKET_BROADCAST:
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break;
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case PACKET_MULTICAST:
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stats->multicast++;
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break;
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case PACKET_OTHERHOST:
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/* Our lower layer thinks this is not local, let's make sure.
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* This allows the VLAN to have a different MAC than the
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* underlying device, and still route correctly. */
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if (!compare_ether_addr(eth_hdr(skb)->h_dest,
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skb->dev->dev_addr))
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skb->pkt_type = PACKET_HOST;
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break;
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};
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return (polling ? netif_receive_skb(skb) : netif_rx(skb));
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}
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EXPORT_SYMBOL(__vlan_hwaccel_rx);
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struct net_device *vlan_dev_real_dev(const struct net_device *dev)
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{
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return vlan_dev_info(dev)->real_dev;
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}
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EXPORT_SYMBOL_GPL(vlan_dev_real_dev);
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u16 vlan_dev_vlan_id(const struct net_device *dev)
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{
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return vlan_dev_info(dev)->vlan_id;
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}
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EXPORT_SYMBOL_GPL(vlan_dev_vlan_id);
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